JP3997322B2 - Image playback device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an image reproducing apparatus capable of reproducing a still image recorded on a disc such as a DVD-Audio.
[0002]
[Prior art]
A DVD-Audio standard disc records digital signals of sound, moving images, and still images, and can switch and display still images while reproducing music and the like. As a result, the lyrics of the music, the music titles, the artist's image, and the like can be switched and displayed.
[0003]
When switching still images, as disclosed in Non-Patent Document 1, it is possible to perform switching by applying visual effects including cut-in / out, fade-in / out, dissolve, and wipe. Each visual effect is recorded on a disc in advance at the time of production, and a still image is switched by applying each visual effect by reproducing the disc.
[0004]
In addition, a signal processing unit capable of applying each visual effect is provided in an image reproducing device for reproducing a disc. As a result, when a disc on which a visual effect at the time of switching of a still image is not recorded is reproduced, the switching can be performed with a predetermined visual effect.
[0005]
[Non-Patent Document 1]
Pioneer Corporation, “DVD Technical Description”, Chapter 5 Audio Format, 5.4 Additional Information, 5-4-1 Still Image Information (3), [online], Last Updated on March 3, 2003, Pioneer ( Co., Ltd.] [Search April 15, 2003], Internet <URL: http://www.pioneer.co.jp/crdl/tech/dvd/5-4.html>
[0006]
[Problems to be solved by the invention]
However, according to the above-described conventional image reproduction apparatus, when reproducing a disc on which a visual effect at the time of switching of a still image is not recorded, a still image is switched by applying a visual effect determined by the image reproduction apparatus. For this reason, there is a problem that various ways of enjoying still images cannot be enjoyed.
[0007]
An object of the present invention is to provide an image reproducing apparatus that can enjoy various ways of enjoying still images.
[0008]
In order to achieve the above object, the present invention provides an image reproducing apparatus capable of switching and reproducing a plurality of still images recorded on a DVD-Audio standard disc and preparing a plurality of visual effects to be applied to the reproduced still image at the time of switching . As a means for designating the visual effect, random (no priority designation), random (priority designation), and fixed are provided, and when the random (no priority designation) is designated, it is applied to a still image. When the weight of all visual effects that can be set to 1 and the random (with priority designation) is designated, the weight of the visual effect designated as priority is a value of 2 or more, and the weight of other visual effects is designated. 1, and wherein when the fixing is specified, visual by weighting of the visual effect that is specified in a fixed 1, and 0 the weighting of the other visual effects Determine the weight of each fruit, to record the table information indicating the weighting in the recording unit, during switching of the still image, reads the table information from said recording unit, visual effects Oite weighting in the table information is 0 Is excluded from the extraction target, and the still image can be switched by applying the visual effect extracted by determining the extraction frequency of the visual effect whose weight is 1 or more according to the weight .
[0009]
According to this configuration, when playing a disc on which a visual effect at the time of switching of a still image is not recorded, the still image is switched by always applying a visual effect specified by a user setting. In addition, when a plurality of visual effects are randomly applied to switch a still image and the visual effect is set by the user, the frequency of occurrence of the set visual effect increases.
[0010]
According to the present invention, in an image reproducing apparatus capable of switching and reproducing a plurality of still images recorded on a recording medium, a designation of a visual effect applied preferentially from a plurality of visual effects applied to a still image is accepted, and the received designation is Based on this, the extraction frequency for each visual effect when extracting the visual effect to be used is determined, the table information indicating the extraction frequency is recorded in the recording unit, and the table information is recorded from the recording unit at the time of reproducing a still image. A still image can be switched by applying a visual effect that is read out and randomly extracted based on the table information .
[0011]
Further, the present invention is an image reproducing apparatus capable of switching and reproducing a plurality of still images recorded on a recording medium, and accepts a designation of a visual effect to be always applied from a plurality of visual effects to be applied to a still image, and is indicated by the received designation. It is characterized by being able to switch still images by always applying visual effects .
[0012]
According to the present invention, in the image reproducing device configured as described above, the visual effect includes cut-in / out, fade-in / out, dissolve, and wipe.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing an image reproducing apparatus according to an embodiment. The image reproducing apparatus 1 can reproduce sound and moving images based on the DVD-Video standard, and can reproduce sound, moving images and still images based on the DVD-Audio standard.
[0014]
The image reproducing apparatus 1 is provided with a system controller 60 that controls each unit. The servo controller 18, the digital signal processor 24, the stream separator 30, the audio decoder 32, the video decoder 36, the sub picture decoder 40, the video processor 44, the operation unit 58, and the RAM 62 are connected to the system controller 60.
[0015]
The servo control unit 18 drives an objective lens (not shown) in the spindle motor 12, the feed motor 16, and the optical pickup 14 in accordance with an instruction from the system controller 60. The spindle motor 12 rotates the disk 10 at a predetermined rotational speed. The feed motor 16 moves the optical pickup 14 in the radial direction of the disk 10.
[0016]
The optical pickup 14 includes a semiconductor laser and a photodiode, and detects the data recorded on the disk 10 by changing the focal position of the semiconductor laser by moving the objective lens. The electric signal output from the photodiode of the optical pickup 14 is amplified by the RF amplifier 22 and sent to the servo control unit 18. Accordingly, the servo control unit 18 performs various servo controls necessary for reading data from the disk 10.
[0017]
The digital signal processing unit 24 converts the signal output from the RF amplifier 22 into digital data, and then performs signal demodulation processing and error correction processing according to the data format of the disk 10. Data generated by the digital signal processing unit 24 is stored in the RAM 26.
[0018]
The stream separation unit 30 separates the data stream output from the digital signal processing unit 24 in accordance with an instruction from the system controller 60. The separated data signal is transferred to the system controller 60, and the audio information of each track is output to the audio decoder 32.
[0019]
The audio decoder 32 temporarily stores the audio information output from the stream separation unit 30 in the RAM 34. Then, audio information is read from the RAM 34 in accordance with an instruction from the system controller 60, and a predetermined decoding process is performed. The digital-analog converter 48 connected to the audio decoder 32 converts the data output from the audio decoder 32 into an analog audio signal. The audio is reproduced by outputting the analog audio signal to the speaker 49 connected to the audio decoder 32.
[0020]
The video decoder 36 temporarily stores the image information of the moving image and still image output from the stream separation unit 30 in the RAM 38. Then, in accordance with an instruction from the system controller 60, image information is read from the RAM 38 and a predetermined decoding process is performed. The sub picture decoder 40 temporarily stores the sub picture information output from the stream separation unit 30 in the RAM 42. Then, in accordance with an instruction from the system controller 60, sub-picture information is read from the RAM 42 and a predetermined decoding process is performed.
[0021]
The video processor 44 combines the data output from the video decoder 36 and the data output from the sub-picture decoder 40 and outputs the synthesized data to the video encoder 46. The video encoder 46 converts the composite data output from the video processor 44 into a video signal for display and outputs it to the display device 47. As a result, an image such as a still image is displayed on the display device 47.
[0022]
The operation unit 58 includes a plurality of operation keys provided on the main body unit and a remote controller (not shown), and outputs a signal corresponding to the operation state of each operation key instructing voice reproduction or the like to the system controller 60. In addition, various settings of the image playback device 1 can be performed by user operations. The RAM 62 temporarily stores the calculation result of the system controller 60.
[0023]
In the image reproducing apparatus 1 having the above configuration, when a DVD-Audio standard disc 10 is loaded and audio reproduction is started, music or the like is output from the speaker 49. On the display device 47, still images including music titles, lyrics, artist images, and the like are sequentially switched and displayed at a predetermined time. At this time, a still image is switched by applying a predetermined visual effect.
[0024]
As for visual effects, nine types of CutIn, FadeIn, Dissolve, WipeFromTop, WipeFromBottom, WipeFromLeft, WipeFromRight, WipeFromDiagonalLeft, and WipeFromDiagonalRight are predetermined according to the DVD-Audio standard. CutIn indicates cut-in / out, the previous still image disappears instantly and the next still image appears instantly. FadeIn indicates fade-in / out, and after the previous still image gradually disappears, the next still image gradually appears.
[0025]
Dissolve indicates a dissolve, and as the previous still image gradually disappears, the next still image is changed so that it melts. WipeFromTop, WipeFromBottom, WipeFromLeft, WipeFromRight, WipeFromDiagonalLeft, and WipeFromDiagonalRight indicate a wipe, which is replaced with the next still image while gradually expanding the area from a part of the previous still image. The area gradually increases from the upper, lower, left, right, lower left, and lower right, respectively.
[0026]
FIG. 3 shows a setting screen for setting a visual effect at the time of still image switching by the operation unit 58. Each item of “random (no priority)”, “random (with priority)”, and “fixed” is displayed on the setting screen, and the cursor C can be moved and selected.
[0027]
“Random (no priority)” randomly extracts a plurality of pre-stored visual effects and switches the still image by applying the extracted visual effects. “Random (with priority)” has a high probability that a specified visual effect is extracted when a plurality of visual effects are extracted at random. “Fixed” always switches the still image with the specified visual effect.
[0028]
When “Random (with priority)” is selected in the figure, the setting screen shown in FIG. 4 is displayed. A list of items of each visual effect is displayed on the setting screen, and the cursor C can be moved and selected. Even if “fixed” is selected, a similar screen is displayed.
[0029]
FIG. 5 shows an example of a table stored in the image reproduction apparatus 1 and represents weighting for extracting each visual effect. When set to “random (no priority)”, each visual effect is weighted to the same “1”. Thereby, the probability that each visual effect is extracted becomes the same 1/9.
[0030]
When “random (with priority)” is set, the designated visual effect is weighted to “5”, and other visual effects are weighted to the same “1”. As a result, the probability that the specified visual effect is extracted is 5/13, and the others are 1/13. When “fixed” is set, the designated visual effect is weighted to “1”, and other visual effects are weighted to the same “0”. Thereby, the designated visual effect is always extracted.
[0031]
FIG. 2 shows still image switching processing called when switching still images. In step # 11, it is determined whether or not the visual effect is set to “fixed”. If the visual effect is “fixed”, the process proceeds to step # 15. In step # 15, the designated visual effect is extracted based on the table of FIG. 4, and the process proceeds to step # 16.
[0032]
If the visual effect is not “fixed”, it is determined in step # 12 whether the visual effect is set to “random (priority)”. When the visual effect is “random (no priority)”, the process proceeds to step # 14. At this time, the probability that each visual effect is extracted is initially set to be the same based on the table of FIG.
[0033]
When the visual effect is “random (priority)”, the process proceeds to step # 13. In step # 13, the probability that the specified visual effect is extracted is set high based on the table of FIG. In step # 14, visual effects are randomly extracted from the visual effects. In step # 16, the still image is switched by applying the extracted visual effect.
[0034]
According to this embodiment, a still image can be switched by always applying a visual effect selected by the user from a plurality of visual effects including cut-in / out, fade-in / out, dissolve, and wipe. In addition, it is possible to switch the still image by randomly applying each visual effect by increasing the frequency of occurrence of the visual effect selected by the user from each visual effect. Therefore, it is possible to enjoy various ways of reproducing a still image by applying a visual effect according to the user's preference.
[0035]
In this embodiment, the case of reproducing a still image recorded on a DVD-Audio standard disk has been described. However, the still image recorded on a recording medium such as an optical disk, a magnetic disk, or a magnetic tape based on another standard is described. The same effect can be obtained when reproducing a still image.
[0036]
【The invention's effect】
According to the present invention, a still image can be switched by always applying a visual effect selected by a user from a plurality of predetermined visual effects. In addition, according to the present invention, it is possible to switch the still image by applying each visual effect at random by increasing the frequency of occurrence of the visual effect selected by the user from a plurality of predetermined visual effects. Therefore, it is possible to enjoy various ways of reproducing a still image by applying a visual effect according to the user's preference.
[Brief description of the drawings]
FIG. 1 is a block diagram showing a configuration of an image reproduction apparatus according to an embodiment of the present invention.
FIG. 2 is a flowchart showing an operation of a still image switching process of the image reproduction device according to the embodiment of the present invention.
FIG. 3 is a diagram showing a visual effect setting screen of the image reproduction apparatus according to the embodiment of the present invention.
FIG. 4 is a diagram showing a visual effect setting screen of the image reproduction apparatus according to the embodiment of the present invention.
FIG. 5 is a table showing weights for extracting visual effects of the image reproduction apparatus according to the embodiment of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Image reproduction apparatus 10 Disc 14 Optical pick-up 24 Digital signal processing part 30 Stream separation part 32 Audio decoder 36 Video decoder 40 Sub picture decoder 46 Video encoder 47 Display apparatus 48 D / A conversion part 49 Speaker 58 Operation part 60 System controller

Claims (1)

In an image playback apparatus in which a plurality of still images recorded on a DVD-Audio standard disc can be switched and played back, and a plurality of visual effects to be applied to the playback still images at the time of switching are prepared .
Random (no priority designation), random (with priority designation), and fixed as means for designating the visual effect,
When the random (no priority designation) is designated, the weight of all visual effects that can be applied to the still image is set to 1,
When the random (with priority designation) is designated, the weight of the visual effect designated with priority is set to a value of 2 or more, and the weight of other visual effects is set to 1.
When the fixed is specified , the weight of each visual effect is determined by setting the weight of the visual effect designated as fixed to 1 and the weight of the other visual effects as 0 ,
Record table information indicating the weighting in a recording unit,
Sometimes switching of the still image, reads the table information from said recording unit, said Oite weighting table information and the visual effect extraction covered is 0, depending extraction frequency of visual effects weighting is 1 or more in weight An image reproducing apparatus characterized in that a still image can be switched by applying a visual effect determined and extracted in this manner.

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