CN1301619C - Method and interface system for assisting user to detect advertisement segment by displaying interface - Google Patents

Abstract

The invention provides a method for assisting a user to filter advertisement segments from a video signal and a related interface system. The present invention can first sample/extract one reference frame every N1 frames in the video signal and display each reference frame to the user. When a user finds that a reference frame is a frame of the advertisement segment, the present invention can sample/extract the reference frame of the second layer from a plurality of frames between the reference frame and its adjacent reference frame, and every N2 frames, wherein N2 is smaller than N1, and present the sampled reference frame to the user. The user can further select the frame of the advertisement segment from the reference frames of the second layer, and the advertisement segment in the video signal can be more accurately positioned.

Description

Method and interface system for assisting user to detect advertisement segment by displaying interface

technical field

The present invention relates to a method and a related interface system for assisting users in detecting advertisement segments in a video signal, in particular to a method capable of sequentially sampling/capturing each frame at different time intervals to present to the user to assist the user A method for quickly and accurately locating an advertisement segment and a related interface system.

Background technique

The audio-visual program service provided by cable or wireless broadcast media is one of the most important sources of information in the modern information society. Viewers can obtain useful news, knowledge, information, or audio-visual entertainment that can relax their bodies and minds from audio-visual program services. However, under commercial considerations, audio-visual programs provided by radio and television media often have commercial segments interspersed between normal programs. For viewers, these advertisement clips often interfere with the continuity of normal programs, cause trouble for viewers to watch normal programs, and waste the time of viewers. When the viewer wants to record the normal program as a future reference (or to record it and play it later), these commercial segments will consume the resources of the user to record the video signal, and cause the user to be unable to conveniently and quickly retrieve, Manage and access the recorded video signals. To search for advertising segments in video signals, and then skip and filter them, an efficient interface system is necessary to assist users to search for advertising segments quickly and systematically. However, in the known technology, there is no related interface system, and it is impossible to assist the user to quickly and conveniently locate the location of the advertisement segment.

Contents of the invention

Therefore, the present invention provides a method and a related interface system that can assist users to quickly search for advertisement fragments, so as to facilitate users to locate advertisement fragments, and further skip or filter these advertisement fragments.

As known to those skilled in the art, video signals can present dynamic images by providing different frames at different times with a certain frame rate (frame rate), and in the present invention, sampling/capturing is performed with sampling times of different scales Take the frame in the video signal; at a larger scale sampling time, the user can roughly locate the location of the advertisement segment first, and at a smaller scale sampling time, the user can more precisely locate the advertisement segment s position. For example, when a user wants to perform advertisement detection on a video signal with a total length (total playing time) of one hour, the interface system of the present invention can first use one minute as the sampling time to capture pictures every other minute. As a reference frame, each reference frame is presented to the user at the same time in the form of thumbnails. The user can select the frame of the advertisement segment from these reference frames. For example, if the user finds that the 18th reference frame (the frame broadcasted at the 18th minute) is a frame of a normal program, and the 19th reference frame (the frame broadcasted at the 19th minute) is changed to an advertisement frame frames, it means that the beginning of the commercial segment falls between the 18th minute and the 19th minute. Next, the interface system of the present invention can use a smaller scale of one second as the sampling time, and further capture pictures every second from the video signals of the 18th minute and the 19th minute as the first Second level reference picture. These second-level reference images will also be presented to the user in the form of thumbnails at the same time, so that the user can more accurately locate the location of the advertisement segment in seconds. For example, if the user finds that the 24th second-level reference frame is a normal program among the second-level reference frames, and the 25th second-level reference frame is an advertisement segment, it means that the advertisement segment is in It didn't appear until 18 minutes and 24 seconds later. In this way, the location of the advertisement segment can be accurately located.

In other words, as the time scale of the sampling time changes from large to small, the user can gradually and accurately locate the location of the advertisement segment by quickly browsing the reference frames at different sampling time, and then perform necessary processing on the advertisement segment , like skipping, filtering, or clipping it out. The interface system and method of the present invention can be structured on a recording/playback device (such as a hard disk, a CD or a video tape recorder/player) or a multimedia computer capable of recording/playing video, audio and video signals to assist users in Detection of commercial segments in recorded video signals. In addition to detecting commercial segments, the present invention can also be regarded as a method for quickly retrieving image content, so as to assist users to quickly and accurately find out segments with specific content in a video signal.

Description of drawings

FIG. 1 is a schematic diagram of advertisement segments interspersed in a video signal.

FIG. 2 is a functional block diagram of an embodiment of the interface system of the present invention.

3 and 4 are schematic diagrams of the operating principle of the interface system in FIG. 2 .

FIG. 5 and FIG. 6 are schematic diagrams of the display interface in FIG. 2 to assist the user in locating the advertisement segment through the interface screen.

FIG. 7 is a schematic diagram of the collocation of the interface system in FIG. 2 with other automatic advertisement detection mechanisms.

Description of reference symbols

10 interface system 12 buffer module

14 processing module 16 display interface

18 control interface

20A-20B, 22A-22B, 42 interface screen

24, 34 Thumbnail 26, 36 Cursor

28A, 38A-38D, 48A-48B instruction line

28B, 38E, 48C status column

V Video signal F(a1)-F(a3), F(.) frame

P1, P2 normal program Ad commercial segment

R(0)-R(K), S(0)-S(P) reference frame

Where PA(1)-PA(4) may be inserted

Detailed ways

Please refer to FIG. 1; FIG. 1 is a schematic diagram of a typical video signal V. As shown in FIG. The video signal V can sequentially provide different frames F(a1), F(a1+1), F(a1+2), etc. at different times, so as to combine the image frames of each frame to present a dynamic image. As mentioned above, in the video signal provided by broadcasting media, commercial segments will be interspersed between normal programs; and in Figure 1, frames F(a1) to F(a2), frame F(a3+1 ) to F(a4) etc. are respectively used to present dynamic images of normal programs P1 and P2, and frames F(a2+1) to F(a3) are the frames of the advertisement segment Ad, which are used to combine and present the advertisement segment Ad dynamic image.

Please refer to Figure 2. FIG. 2 is a functional block diagram of an embodiment 10 of the interface system of the present invention. The interface system 10 can be built on a video recording device or a video playback device, such as a tape, hard disk or optical disc video recorder or player, to assist users to detect the location of the advertisement segment from the recorded video signal. In addition, the interface system 10 can also be implemented in a multimedia computer. As shown in FIG. 1 , the interface system 10 may be provided with a buffer module 12 , a processing module 14 , a display interface 16 and a control interface 18 . When the user wants to detect the location of the advertisement segment in a video signal V, the buffer module 12 can temporarily store and provide each frame of the video signal V. The processing module 14 is capable of extracting reference frames of various levels from the video signal V provided by the buffering module 12 with sampling times of different scales. In a preferred embodiment of the present invention, the processing module 14 can additionally realize the function of a thumbnail module, so as to process these extracted reference frames into a thumbnail form; and the display interface 16 can display these reference frames The thumbnail of the image is presented to the user in the form of an image screen. The control interface 18 can receive a user's control command, convert the control command into an electronic signal, and transmit it to the processing module 14 to control the processing module 14 to convert the sampling time. For example, if the interface system 10 is built in a video recording device, because the video recording device will be equipped with a display device (such as a TV) to display its recorded video signal, the present invention can use the display device as a display interface 16, and implement the control interface 18 with the control interface of the recording device. For example, a general video device is equipped with a remote control as a control interface, but the interface system 10 of the present invention can continue to use the remote control to implement the control interface 18 . If the interface system 10 is built in a multimedia computer, then the display interface 16 can be implemented on the display of the multimedia computer, and the function of the control interface 18 can also be realized by using the existing control interface (such as a keyboard and a mouse) of the multimedia computer. .

Please refer to FIG. 3 to FIG. 4 (and refer to FIG. 2 together). FIG. 3 and FIG. 4 are schematic diagrams of the operating principle of the interface system 10 ( FIG. 2 ) of the present invention. First, as shown in FIG. 3 , when the interface system 10 starts to assist the user to find advertisement segments from the video signal V, the processing module 14 of the interface system 10 can use N1 frames in each frame of the video signal V As the sampling interval, one frame is extracted from every N1 frames as a reference frame. As in Figure 3, there are N1 frames of frames F(c0), F(c0+N1), F(c0+2×N1), F(c0+3×N1)…F(c0 +k×N1) until F(c0+K×N1), they will be sampled/extracted separately and become reference frames R(0), R(1), R(2), R(3)...R (k) to R(K); where c0, K, N1 are fixed integer-valued constants. The interface system 10 can display each reference frame to the user through the display interface 16 . In a preferred embodiment of the present invention, the picture content of each reference frame can be simultaneously displayed on the display interface 16 in the form of a thumbnail; the interface picture 20A in FIG. The displayed screen. As shown in the interface screen 20A, the present invention can arrange the thumbnail images of each reference frame R(0) to R(K) in a matrix order, which is convenient for users to browse and compare the image content of each reference frame.

Continuing the example in FIG. 3 , please continue to refer to FIG. 4 . After browsing and comparing the reference frames displayed on the interface screen 20A, the user can preliminarily find out which reference frames are frames of advertisement segments. In the example in Fig. 4, assume that the user finds that a given reference frame R(k0-1) is a normal program (k0 is a given value), while the next reference frame R(k0) is an advertisement segment frame, which means that the advertising segment in the video signal V starts between the frame F(c0+(k0-1)×N1) and the frame F(c0+k0×N1), because the reference frame R(k0-1) and R(k0) correspond to frames F(c0+(k0-1)×N1) and F(c0+k0×N1) in the video signal V, respectively. Next, the user can control the processing module 14 through the manipulation interface 18 ( FIG. 3 ), and the processing module 14 further performs frame sampling/capture of the next level (second level) for the reference frame R(k0). . In the sampling/capturing of the second level, the processing module 14 will use frames between F(c0+(k0-1)×N1) and F(c0+k0×N1) as target frames, among these target frames A reference frame of the second level is sampled/extracted every N2 frames; and N2 here is smaller than N1 in FIG. 3 . In other words, in the sampling/capturing of the second level, the present invention will perform sampling/capturing more precisely at finer intervals, so as to assist the user to more precisely locate the location of the advertisement segment.

As shown in FIG. 4, frames F(c1), F(c1+N2), F(c1+2) between frames F(c0+(k0-1)×N1) and F(c0+k0×N1) ×N2)…F(c1+p×N2) up to F(c1+P×N2), which are respectively extracted to become the second-level reference frames S(0), S(1), S(2)… S(p) to S(P); wherein, c1, P, N2 are fixed integer-valued constants. The interface system 10 of the present invention can further display these reference frames S(0) to S(P) to the user through the display interface 16 ( FIG. 2 ). The interface screen 20B in FIG. 4 illustrates the situation that each second-level reference frame is presented to the user by the display interface 16 in the form of matrix-arranged thumbnails for browsing. After the user browses and compares the reference frames S(0) to S(P) of the second level, the location of the advertisement segment can be further precisely located. For example, assume that after viewing the interface screen 20B, the user finds that the reference frames S(0) and S(1) are still frames of a normal program, but after the reference frame S(2), they become frames of commercial segments, This means that the advertisement segment starts between frames F(c1+N2) and F(c1+2×N2), because reference frames S(1) and S(2) correspond to frames F(c1+N2) respectively ) and F(c1+2×N2). Since N2 is smaller than N1, it can be further confirmed that the advertisement segment starts between frames F(c1+N2) and F(c1+2×N2), which means that the present invention can use this second-level interface picture 20B to further assist the use or more precisely pinpoint where an ad segment begins. Of course, based on similar principles and procedures, the user can also precisely locate the end of the advertisement segment.

It can be seen from the description of FIG. 3 and FIG. 4 that the present invention uses a relatively large sampling interval N1 to assist the user to roughly distinguish the location of the advertisement segment (ie, the start and end frames). When the user initially finds the location of the advertisement segment, a smaller sampling interval N2 is further used to assist the user to locate the advertisement segment more precisely. Certainly, continuing the above-mentioned examples in FIG. 3 and FIG. 4 , the present invention can further perform third-level sampling extraction. Assuming that the user finds that the advertisement segment starts between the reference frames S(1) and S(2), the present invention can also use a smaller N3 (N3<N2<N1) is used to sample/retrieve the reference frame of the third level, so as to help the user to further limit the beginning of the advertisement segment between a certain F(c3) and F(c3+N3). By performing preliminary comparison and browsing at the level of larger sampling intervals, users can quickly initially locate advertisement segments in large-scale (multi-frame) and long-term video signals; In the small sub-level, the user can further precisely locate the location of the advertisement segment.

In the present invention, various sampling intervals can be determined by the actual situation of inserting advertisement segments in general broadcast media. For example, if the advertising segment inserted by the radio and television media will not be shorter than one minute, and the video signal has 30 frames per second, then the sampling interval N1 in Figure 3 can be set as 60×30; that is to say, the video signal In the signal, the frames broadcast every minute are extracted as the reference frames of the first level. Since the commercial segment must be longer than one minute, if one minute is used as the sampling interval, at least one frame of the commercial segment must be extracted as the first-level reference frame. In FIG. 4, the sampling interval N2 of the second level can be set as 1×30, that is, between two first level reference frames, the second level reference frame is further extracted at a time interval of one second. In other words, according to the reference frame of the first level, the present invention can assist the user to locate the start/end of the advertisement segment in the unit of "minute"; and at the second level, the present invention can further assist the user in "minute" seconds" to more precisely position ad segments.

As for the styles of the interface screens 20A and 20B in FIG. 3 and FIG. 4 , the size of the thumbnails and the number of reference screens that the user can browse each time can be determined. For example, if an interface screen can accommodate 60 thumbnails of reference frames, and in the first layer, the reference frames are captured at intervals of one minute as the sampling, then the user can A video signal of 60 minutes is covered in the 60-minute video signal, and the location of the beginning or the end of the advertisement segment is located in units of minutes in the 60-minute video signal. For this situation, please refer to FIG. 5 (and also refer to FIG. 2 ). The interface screen 22A in FIG. 5 is a schematic diagram of the display screen of the display interface 16 ( FIG. 2 ) in the above situation. As shown in FIG. 5 , the interface screen 22A uses thumbnail images 24 to present the images of each first-level reference frame, and under each thumbnail image 24, each reference frame can be correspondingly marked as the one in the video signal. The time is extracted; for example, "0:0.1" means that the corresponding reference frame is the frame of the first minute, "0:0.2" means that the corresponding reference frame is the frame of the second minute in the video signal, and "0 :59” means that the corresponding reference frame is the frame at the 59th minute in the video signal.

When the user browses through the interface screen 22A and compares the start or end frame of the advertisement segment, he can use the control interface 18 (FIG. 2) to mark it, and control the interface system 10 to start sampling/capturing the next-level reference frame Take and present. In the existing multifunctional optical disk (DVD) playback device, there is already an option control interface for cursor movement; if the interface system 10 of the present invention is built on a general household video recording and playback device, this control interface can be used to realize the control interface. 18 functions. For example, on the remote controller matched with the multifunctional optical disc player, there will be cursor movement control keys up, down, left, and right, and a command input (enter) key. When implementing the present invention, the interface screen 22A in FIG. 5 can display a frame selection cursor 26 to mark the reference frame selected by the user. For example, when the interface screen 22A is initially presented, the frame selection cursor 26 may be located at the reference frame indicated by "0:00". If the user finds that the reference frame marked by "0:04" is a frame of a normal program, but the reference frame marked by "0:05" is a frame of an advertisement clip, then the user can use the cursor movement control keys to move left Move the selection cursor 26 to the reference frame marked "0:05", and then press the instruction input key. In this way, the processing module 14 can use each of the two reference frames "0:04" and "0:05" as the target frame to perform second-level reference frame extraction on these target frames. Of course, if the system of the present invention is implemented in a multimedia computer, the multimedia computer itself has various control interfaces such as a keyboard, a mouse, a touch panel, and a trackball, all of which can be used to realize the functions of the control interface 18 .

In addition to each first-level reference frame (which may be referred to as a first reference frame), the interface screen 22A may also present other instructions or states. For example, if the length of the video signal itself exceeds one hour, but the sampling interval is minutes, only the reference frame corresponding to one hour can be presented on the same interface screen, and at this time, the interface screen 22A can display a command line 28A ( Can be displayed as the words "more...", or the words "next page"). When the user manipulates the frame selection cursor 26 to the command 28A and manipulates the command input key, the interface system 10 can continue to capture reference frames at sampling intervals of minutes for other parts of the video signal that exceed one hour. The interface screen 22A can also use the status column 28BN to display information such as the total time length of the video signal, the status of the advertisement detection, and the like.

Continuing the example in FIG. 5 , please refer to FIG. 6 . When the user selects the reference frame marked "0:05" in FIG. 5 and manipulates the interface system 10 to capture the reference frame of the second level, the display interface 16 will display the interface screen 22B shown in FIG. Two-level frame of reference. Similar to the example in FIG. 5 , assuming that one frame can accommodate 60 thumbnails of reference frames, in the second level of reference frame capture, the interface system 10 can convert the video signals between the 4th minute and the 5th minute by Sampling/capturing is performed at intervals of one second to become second-level reference frames (which may be referred to as second reference frames), and thumbnails 34 are used to present each second-level reference frame. Similarly, the capture time can also be marked under the thumbnails of each reference frame. For example, the mark "0:04:01" means that the corresponding reference frame is the picture at the 1st second of the 4th minute in the video signal, and the mark "0:04:51" means that the corresponding reference frame is the 4th minute in the video signal The picture of the 51st second, and so on.

By browsing and comparing each second reference frame, the user can accurately locate the advertisement segment in seconds. Likewise, the interface screen 24B can display a frame selection cursor 36 to mark the second reference frame selected by the user. For example, if the user finds that the reference frame marked "0:04:50" is a normal program, and the reference frame marked "0:04:51" is transformed into a frame of a commercial segment, it means that the commercial segment is the beginning Between the 50th second and the 51st second of the 4th minute of the video signal. The user can manipulate the frame selection cursor 36 to move to the reference frame of "0:04:51" by manipulating the interface 18, and perform necessary manipulations; and the interface system 10 (FIG. 2) can perform corresponding operations. Similar to the interface screen 24A in FIG. 5 , the interface screen 24B can also display a plurality of command columns 38A to 38D, and a status column 38E. For example, when the user sets the frame selection cursor 36 to move to the reference frame of "0:04:51", he can first press the command input key to confirm his choice; if the user feels that the unit of second is enough to accurately locate the advertisement segment, you can continue to move the cursor 36 to the instruction column 38C (it can display words such as "mark AD"), trigger the instruction with the instruction input key, and the interface system 10 of the present invention can cooperate with a temporary storage module (not shown) In FIG. 2 ), mark and record the frame "0:04:51" as the starting point of an advertisement segment. And users can use these records later to skip, edit or delete commercial segments.

Relatively, if the user wants to more accurately locate the advertisement segment after confirming the reference frame of "0:04:51", the instruction bar 38B (which can be displayed as "down one layer" or the like) can be triggered. ), then the interface system 10 will regard the frames between the 4th minute, the 50th second and the 51st second in the video signal as the target frames of the third level, and these third level The target frame performs the third-level reference frame capture, which helps users locate the advertisement segment with an accuracy of less than one second. Of course, the user can also trigger the command column 38A (which can display words such as "up one layer"), and the interface system 10 will re-present the interface screen 24A in FIG. frame. In addition, the user can also trigger the command bar 38D (which can display the words “setup”) to perform related settings of the interface system 10 . For example, the number of reference frames presented by the same interface screen, or the size of the thumbnails, etc. can be set. Regardless of the interface screen shown in FIG. 5 or FIG. 6 , the command line 38D can be provided. The status column 38E of the interface screen 24B can further display the status of the advertisement detection, for example, "second layer" means that the advertisement detection has been carried out to the second layer and so on.

In addition to displaying different levels of reference frames to assist users in locating advertisement segments, the interface system 10 ( FIG. 2 ) of the present invention can also be used in conjunction with other automatic advertisement detection mechanisms. For example, since the content of the commercial segment is different from that of the normal program, discontinuity of picture content will inevitably occur at the junction of the normal program and the commercial segment. Taking the example in FIG. 1 as an example, the insertion of the advertisement segment will cause discontinuous picture content between the frame F(a2) and the frame F(a2+1), while the frame F(a3) and F(a3+1) will have discontinuous picture content. There will also be picture discontinuity. Therefore, by detecting picture discontinuities in the video signal, it may be possible to find out where an ad segment starts/ends, implementing some kind of automatic ad detection mechanism. However, picture discontinuity may also occur when scenes change in normal programs; therefore, the picture discontinuity is only a "possible" insertion place of an advertisement segment, and whether it is a real insertion place of an advertisement segment needs to be further determined, for example It is determined by the user's own comparison. At this time, the interface system 10 of the present invention can be used in conjunction with it to display to the user the frames before and after the possible insertion of the advertisement segment through the display interface 16, helping the user to further confirm the real insertion position of the advertisement segment.

Please refer to FIG. 7 (and refer to FIG. 2 together); FIG. 7 is a schematic diagram of the operation of the present invention with the automatic advertisement detection mechanism. Assume that an automatic advertisement detection mechanism (which may be the aforementioned discontinuous detection mechanism, or other detection mechanisms) detects the possible insertion places PA(1) to PA(4) of several advertisement segments in the video signal V, etc. etc., the interface system 10 ( FIG. 2 ) of the present invention can capture the frames before and after these possible insertion positions as reference frames, and then display these reference frames to the user in the form of thumbnails through the display interface 16 . And the interface picture 42 in Fig. 7 is exactly the graphics picture that the display interface 16 shows to the user under this kind of application; Wherein, the possible insertion place PA (1) of the advertisement fragment corresponds to two adjacent frames F (a1), F (a1 +1), and these two frames will be used as reference frames and presented to the user as adjacent thumbnails. Similarly, adjacent frames F(a2) and F(a2+1), frames F(a3) and F(a3 +1), and frames F(a4) and F(a4+1) can also be presented to the user in the form of thumbnails.

After viewing two adjacent frames, the user can compare whether the corresponding possible insertion is a real advertisement segment insertion. For example, if the frames F(a1) and F(a1+1) are both frames of a normal program, the insertion point PA(1) may not be the real insertion point of the advertisement segment. In contrast, if the frame F(a2) is a frame of a normal program, but the adjacent frame F(a2+1) is a frame of an advertisement segment, it means that the possible insertion point PA(2) is indeed the insertion point of the advertisement segment. At this point, the user can select the possible insertion point PA (2) by manipulating the interface 18, and trigger the command line 48A in the interface screen 42 to confirm that the possible insertion point PA (2) is one of the real insertion points of the advertisement segment. one. Certainly, the interface screen 42 may additionally display command lines of other functions, allowing the user to perform other operations. For example, after the user triggers the instruction bar 48B, more frames near the possible insertion point can be extracted as reference frames, such as further displaying F(a1-1), F(a1), F(a1 +1), F(a1+2) and other frames allow the user to more easily confirm whether the possible insertion point PA(1) is the real insertion point of the advertisement segment. In addition, the interface screen 42 can also display other relevant information in the status column, etc., such as the status column 48C to display the time of the possible insertion location PA( 1 ) relative to the video signal V.

In summary, the present invention can display reference frames of different levels through the interface screen of the display interface, so as to assist the user to quickly and accurately locate the advertisement segment. In the reference frame of the initial level, the present invention can assist the user to quickly browse a wide range of video signals for preliminary positioning; and in the reference frame of the subsequent level, the present invention can further assist the user to accurately locate the advertisement segment. Certainly, the above-mentioned operation principle of the present invention can also assist the user to quickly and accurately find a segment with specific content in a wide range of video signals. In addition, the present invention can also be used in conjunction with an automatic advertisement detection mechanism. Compared with the prior art, the present invention can help the user locate the advertisement segment more conveniently, and then skip, edit or filter the advertisement segment, so that the user can use the useful information in the video signal more efficiently.

The above descriptions are only preferred embodiments of the present invention, and all equivalent changes and modifications made according to the claims of the present invention shall fall within the scope of the patent of the present invention.

Claims (10)

1. A method for assisting a user in detecting and filtering an advertisement segment from a video signal, comprising: In the video signal, selecting frames separated by a first number of frames from each other as first reference frames, so that at least the first number of frames are separated between two adjacent first reference frames; performing a first display step to display the first reference frames; When the user selects a first reference frame, the first number of frames before or after the first reference frame are used as target frames, and among these target frames, the frames that are separated from each other by a second number of frames are used as target frames. is a second reference frame, and the second number is less than the first number; and A second display step is performed to display the second reference frames, and the user is provided to select a second reference frame to obtain the advertisement segment. 2. The method according to claim 1, wherein, when performing the first display step, the respective images of the first reference frames are first reduced to a corresponding thumbnail, and then the images corresponding to the first reference frames are simultaneously displayed. thumbnail. 3. The method according to claim 1, wherein when performing the second display step, the respective images of the second reference frames are first reduced to a corresponding thumbnail, and then the corresponding thumbnails of the second reference frames are simultaneously displayed. picture. 4. The method of claim 1, further comprising: The video signal is obtained, wherein the video signal can sequentially provide a plurality of frames according to a preset order to present a dynamic image. 5. The method of claim 1, further comprising: A manipulation interface is provided for the user to select the first reference frame and the second reference frame. 6. An interface system that can assist users to detect and filter out an advertisement segment from a video signal, comprising: A buffer module is used to temporarily store the video signal, and the video signal can sequentially provide a plurality of frames according to a preset order to present a dynamic image; A processing module, which can select frames separated by a first number of frames from each other in the video signal as first reference frames, so that at least the first number of frames are separated between two adjacent first reference frames; A display interface, which can display these first reference frames; and when the user selects a first reference frame, the processing module takes the first number of frames before or after the first reference frame as a target frame, and Among the target frames, frames separated by a second number of frames are used as second reference frames, and the second number is less than the first number; and the display interface can also display these second reference frames. 7. The interface system of claim 6, further comprising: A thumbnail module, which can reduce the respective images of the first reference frames into a corresponding thumbnail, and when the display interface displays the first reference frames, it simultaneously displays the corresponding thumbnails of the first reference frames . 8. The interface system according to claim 7, wherein the thumbnail module further reduces the respective images of the second reference frames into a corresponding thumbnail, and when the display interface displays the second reference frames, it simultaneously displays The thumbnail images corresponding to these second reference frames. 9. The interface system of claim 6, further comprising: A manipulation interface is used for providing the user to select the first reference frame and the second reference frame for the processing module to generate the target frame. 10. A progressive video signal advertising segment automatic detection and filtering method, comprising: In a video signal, a plurality of first thumbnail images are generated according to frames separated from each other by a first number of frames, wherein the plurality of first thumbnail images are displayed on a display interface; providing a manipulation interface for the user to select the plurality of first thumbnail images; A plurality of second thumbnail images are generated according to the plurality of first thumbnail images selected by a user, so that there are a second number of frames between two adjacent second thumbnail images, and the second number is less than the first quantity; displaying the plurality of second thumbnails on the display interface; and Obtaining and filtering out the advertisement segment according to the plurality of second thumbnail images selected by the user.

Images