TWI584647B - A method and apparatus for preventing defocusing - Google Patents

Description

Method and device for preventing defocusing

The invention relates to a method and a device for preventing image defocusing when shooting, especially if the program or the running program includes a screen edge warning zone or a method for preventing the defocusing of the allowed active range area of the tracked subject. Alternatively, the present invention can be applied to an image pickup apparatus such as a camera or a camera.

Although the current camera device has a tracking device, when the main body leaves the lens, the head of the entire body disappears, so people must adjust the lens direction, and the camera continues to perform tracking after the main body enters the lens (see FIG. 1). . Some people are used to walking around when they are speaking, and if they just happen to have a lack of hands in the sound control room, the voice controller will be easily confused because they have to control the progress of the screen and control the direction or angle of the camera. Switching on the output of the screen (for example, switching between the speaker and the content of the speech), so start doing this creation to ease the burden on the voice controller.

The invention mainly utilizes, in the program or running program of the camera device, a screen visible range edge warning zone or an allowed active range area of the tracked subject, when the tracked subject moves to the warning edge of the screen edge, or exceeds When the active range area of the tracked object is tracked, the processing unit transmits at least one signal or/and power to the auto focus unit, and the auto focus unit performs corresponding actions according to the signal transmitted by the processing unit (for example, zooming in on the zoom lens). Magnification), so that the tracked subject returns to the area where the screen tends to be in the middle (see the diagram in Figure 2). The general camera uses more than five times the magnification to record the speaker, so the speaker can prevent the speaker from going out of the lens and reduce the defocus of the speaker, no matter how the speaker moves on the stage.

Further, a photographic device adjustment unit is added to adjust the angle, direction, and the like of the camera; when the tracked subject approaches the warning edge of the screen edge, the processing is performed. The unit transmits at least one signal or/and power to the photographing device adjusting unit, and the photographing device adjusting unit further performs a corresponding action according to the signal transmitted by the processing unit, so that the tracked subject returns to a region where the screen is relatively central (for example, , the direction or / and angle of the moving camera device, so that the tracked body returns to the center of the screen, as shown in the schematic diagram of FIG. 3, and the behavior of preventing the subject being tracked from defocusing is achieved; It is controlled by the voice controller to adjust the angle and direction of the camera and adjust the focal length of the lens by the knob on the joystick. Now it is replaced by microcomputer or computerized by the calculation and coordination of the processing unit. Manual adjustment of the voice controller.

The invention can also be further combined with a device such as a light adjustment unit. When the first tracking subject (person) and the second tracking subject (light) are manually or automatically set as the tracking object, the processing unit calculates Whether the position or visual position of the tracked subject and the second tracked subject overlap on the screen, if not overlapping, the processing unit transmits a message or/and power to the light adjustment unit, and the light adjustment unit performs the light. Move until the first subject and the position of the light on the screen or the visual position are in an overlapping state, so that the performer can move according to the information given by the processing unit regardless of how the stage moves. Power and try to automatically project the light onto the performer's body (as shown in the schematic diagram of Figure 4) to reduce the burden of manpower to control the light.

The anti-defocusing device comprises at least one camera unit capable of at least image capturing and outputting image signals; and an autofocus unit capable of receiving at least information and/or power given by the processing unit The corresponding action; a tracking unit---at least the position of the main body; a processing unit---containing a running program, at least capable of receiving and processing image signals and coordinating the units to achieve the effect of preventing defocusing; A power supply unit---at least for power supply, either a storage power source or an external power supply.

Further, a photographic device adjustment unit is added to the device to allow the photographic device to move as the subject moves (for example, as shown in the schematic diagram of FIG. 3).

Or in turn, the device is combined with the light adjustment unit so that the performance control unit can automatically project onto the performer no matter how the performance character moves. (For example, as shown in the schematic of Figure 4).

Method of implementation

a. Set a screen visible range edge warning area or set an allowable activity range area of the tracked subject in the program or running program of the camera; b. After booting, set the tracking subject (including manually setting the tracking subject, or camera) The device automatically sets the body of the tracking; c. performs tracking or performs automatic tracking (eg, performs automatic face tracking); d. the processing unit calculates or/and tracks whether the body being tracked is close to the warning range of the screen set in the program. Zone or the area of permitted activity beyond the tracked subject; e. If the tracked subject does not have a warning zone close to the visible range of the screen or if the tracked subject does not exceed the allowable range of activity, then perform "continue tracking"; f. If the tracked subject has a warning zone close to the visible range of the screen or exceeds the allowable range of the tracked subject, the camera or autofocus unit will follow the signal or/and power transmitted by the processing unit or the equivalent unit. The action corresponding to the output (for example, performing the adjustment of the focus ratio of the AF unit); g. The processing unit continues to check, Whether the subject being tracked is close to the warning area of the visible range of the screen, or whether it exceeds the allowed range of the tracked subject, if yes, execute the fth item, if not, execute the item e until the shutdown or execution is performed Abandon tracking (including performing abandonment tracking because the defocus exceeds the expected time), or when there is a body that resets the tracking.

Among them (execution tracking or execution of automatic tracking) is a tracking method that performs tracking at a certain time or in a continuous tracking manner. Abandoning the tracking includes, if the user manually discards the tracking, or the user abandons the old subject tracking because the subject of the tracking is reset, or the tracked subject leaves the shooting range. There are more than a predetermined time and the program is abandoned by the program.

The invention can also be combined with the light adjustment unit, which comprises: a. setting a screen visible range edge warning area or an allowed activity range area of the tracked subject in the program or running program of the camera device; b. Set the body of the tracking (including the body that manually sets the tracking, or the camera automatically sets the tracking body); c. Perform tracking or perform automatic tracking (for example, perform automatic face tracking); d. Processing unit calculation or / and tracking is Whether the tracked subject overlaps with the tracked light; e. If the tracked subject overlaps with the tracked light, perform "continue tracking"; f. if the tracked subject does not overlap with the tracked light, then Corresponding actions are made according to signals or/and power transmitted by the processing unit or equivalent unit; g. the processing unit continues to check, the body of the calculated tracking overlaps with the tracked light, and if so, the item e is executed. If not, execute the fth item until the shutdown is performed, or there is a subject that performs the abandonment tracking or resets the tracking.

Wherein (execution tracking or performing automatic tracking) is to include tracking at a certain time, or tracking in a continuous tracking manner; and abandoning the tracking includes, manually discarding the tracking by the user, or the user re- The subject of the tracking is set and the old subject tracking is abandoned, or the tracked subject leaves the shooting range for more than a predetermined time and is abandoned by the program.

Since the current touch products are prevalent, it is more convenient to add a drag-and-drop range selection method to set the edge warning area of the visible range of the screen or to set the allowable activity range area of the tracked subject. The method at least includes: a. pressing a first point of the range to be set on the touch panel; b. then performing a drag on the touch panel; c. performing a dragging to the second point of the range to be set; d. Run the program or processing unit, and then according to the first point position and the second point position when performing the dragging, plan or set an area on the screen to complete the selection of the drag range; this area can be used To be the edge warning area of the visible range of the screen, or to set the allowable range of the subject to be tracked; this method is similar to using the mouse to select the desired range, but without the need for a mouse to operate and select the desired range.

Moreover, the current imaging device is more prone to misplacement for the subject of non-face tracking, and it is obvious that the subject to be tracked is a toy simulation aircraft, but the kite that is tracked by the camera device is an annoying kite, which is really annoying, and therefore A method for setting a tracking body of an item on a touch panel product, the method comprising: a. pressing a plurality of points of a range to be set on the touch panel; b. running a program or a processing unit Then, according to the position of the plurality of points, the subject to be tracked is planned or set, and then the photographing device or the tracking unit performs tracking according to the subject of the target.

Example

1. The photographing apparatus of this embodiment comprises at least an image capturing unit capable of at least image capturing and outputting image signals; and an autofocus unit capable of receiving at least information and/or power given by the processing unit. And perform the corresponding action; a tracking unit---at least the position of the main body; a processing unit---containing the running program, at least can receive and process the image signal and coordinate the units to complete the anti-defocusing Effects (for example, reducing the magnification of the image of the autofocus unit, or adjusting the direction or/or angle of the camera, etc.); a power supply unit---providing at least power, which can be a storage power supply, It can be an external power supply.

2. In this embodiment, in the program or running program of the camera device, a screen visible range edge warning zone or an allowed active range area of the tracked subject is set up.

3. In the embodiment, when the shooting is performed, the tracking unit first recognizes the subject, so that the tracking unit can perform tracking or perform automatic tracking (for example, pressing a video button or pressing a video button or a screen touch to select a tracking subject... To enable tracking of the camera Units can perform tracking or perform automatic tracking).

4. The processing unit then according to the position of the tracked subject or the processing unit according to the position of the tracked subject in the visible range of the screen, whether it is close to the edge warning area of the visible range of the screen or beyond the allowable range of the tracked subject, if any, The processing unit transmits at least one signal or/and power to the auto-focus unit, and the auto-focus unit further performs a corresponding action according to the signal transmitted by the processing unit (for example, reducing the magnification of the lens), so that the tracked subject Return to the area where the screen tends to be in the middle. (For example, the schematic diagram of FIG. 2A; the tracked body position of the left diagram of FIG. 2A is about ib~kc of the drawing surface, and the tracked body position of the right picture of FIG. 2A is about hc~id of the drawing surface. Department)

5. When the subject being tracked is plural or set to a plurality of subjects, the processing unit will still follow the edge warning area of the visual range of the screen according to the position of the plurality of subjects in the visible range of the screen, as one of the subjects. The processing unit transmits at least one signal or/and power to the autofocus unit when the edge warning area of the visible range of the screen is exceeded or exceeds the allowable range of the tracked subject. The autofocus unit then makes a signal according to the signal transmitted by the processing unit. The corresponding action (for example, pulling the lens away, like the effect shown in the schematic of Figure 2B).

6. The embodiment is further combined with the photographing device adjusting unit, and the photographing device adjusting unit may be mounted on a tripod or a tripod (including a lock or a panhead mounted on a tripod) or fixed to a certain place (for example, Wall), when the tracked subject moves to an edge warning zone close to the visible range of the screen, the processing unit of the photographing device transmits at least one signal or/and power to the photographing device adjusting unit, and the photographing device adjusting unit according to the processing unit Adjusting the direction and angle of the photographic device by the given message or/and the power, so that the performer is less likely to be out of focus (for example, as shown in the schematic diagram of FIG. 3) regardless of how the motion is moved; The X-axis motor and the Y-axis motor on the unit (one motor is responsible for adjusting the angle, and the other motor is responsible for adjusting the direction). The power required is not high and the volume is not large. Therefore, the camera adjustment unit can also be mounted on the corner frame and the triangle. Frame or combined with a tripod for users to use general photography When the device is used for imaging, the angle or/and direction of the camera device can also be controlled and adjusted through a rocker or equivalent device; and the camera device adjustment unit includes at least one X-axis motor transfer group and one Y-axis motor transfer group. Or equivalent device---to adjust the direction or/and angle of the photographic device; a connection line or port---to receive power or/and signal of the photographic device or processing unit or rocker device; Connected connection device or equivalent device---used to connect the photographic device; a connection device or equivalent device connected to the angle bracket or tripod---used to connect the angle bracket or tripod.

7. The embodiment may also be combined with the light adjustment unit, and the processing unit may overlap according to the positions of the plurality of tracking bodies (the first tracking body “person” and the second tracking body “light”), if not overlapping, The processing unit transmits at least one signal or/and power to the light adjustment unit, and causes the light adjustment unit to perform the movement of the light until the positions of the first body and the light overlap (for example, as shown in the schematic of FIG. 4) No matter how the performer moves, the performer is less prone to image defocusing or decoupling.

8. Similarly, when the dual-light body and the dual-performance body are shown in the schematic diagram of Figure 5, the equipment of Group A can be tracked to track the performers of A, while the equipment of B is used to track the performers of B and let the performers Regardless of how it moves, it is less likely to cause image defocusing or light out of focus. When the equipment of Group A does not set the performer of Track B, and the equipment of B does not set the performer of Track A, there is no mutual interference, especially when there is a difference in the color of the two groups.

Figure 6 is a schematic diagram of the operation of this embodiment.

Fig. 7 is a schematic view showing the operation of the embodiment in combination with the photographing device adjusting unit.

Fig. 8 is a schematic view showing the operation of the embodiment in combination with the light adjusting unit.

FIG. 9 is a schematic diagram of an operation of setting an edge warning area of a visible range of a screen on a touch panel or setting an allowable range of an active area of a tracked subject; wherein an edge warning area of the visible range of the screen or an allowable range of the tracked subject The size of the area can be changed according to the length of the drag. The running program or processing unit of the photographing device can be planned by the photographing device or the processing unit according to the first point position of the dragging to the second point position of completing the dragging. Firefly The size of the edge warning area of the screen visible range or the range of allowed activity range of the tracked subject; and the tracking subject can be set by single touch, or / and multi-touch to set the tracking The subject, so that items that cannot be tracked by the face can also be set as the subject of the tracking.

FIG. 10 is a schematic diagram of the operation of the present embodiment applied to the touch panel; in the figure, the processing unit not only performs the movement of the angle and direction of the photography adjustment unit, but also performs digital amplification or optical amplification.

In particular, it is stated that the edge warning area of the visible range of the screen of the present invention or the allowed activity range area of the tracked subject may be in a different size or/and a user-customized size to make various areas or sizes. The setting of the user-customized size includes the size of the user who subscribes to the area by the drag screen, so that the present invention can satisfy the needs of different people as much as possible, and the edge warning area or The allowed activity range area of the tracked subject can be displayed or/not displayed in various ways.

The features and spirit of the present invention are intended to be more clearly described by the preferred embodiments of the present invention. It is intended that the present invention be construed as being limited to the scope of the present invention.

10‧‧‧First Tracking Subject

20‧‧‧Second tracking subject

11‧‧‧Screen warning area edge warning zone (lightweight gray to indicate the warning zone for ease of explanation or understanding)

30‧‧‧The area of permitted activity of the subject being tracked

40‧‧‧ indicates that touch selection is performed

Figure 1 is a schematic diagram of a commercially available photographic device performing subject tracking; after the tracked subject ran out of the lens, if the subject re-enters the lens, tracking can continue.

2 is an operation example of the tracked subject of the embodiment in the position of the visible range of the screen. When the edge is close to the edge warning area of the visible range of the screen, the processing unit reduces the magnification by the autofocus unit, so that the tracked The subject returns to the area where the screen tends to be in the middle, at least the subject being tracked will not be out of the lens. Figure 2A shows the effect of single-subject tracking, while Figure 2B shows the effect of double-subject tracking. Schematic diagram, FIG. 2C is a schematic diagram of the effect of single subject tracking; and the edge warning area of the visible range of the screen can be displayed or not displayed in various ways.

Fig. 3 is an operational example when the present embodiment is combined with the photographing device adjusting unit.

Figure 4 is an operational example when the present embodiment is combined with a light adjustment unit.

One of the four aspects of Figure 4 is that as long as the subject is not set as the tracker, its location will not affect the operation of the device.

Figure 5 is a plurality of operational embodiments of the present embodiment in combination with a light adjustment unit.

Figure 6 is a schematic diagram of the operation of the present invention.

Fig. 7 is a schematic view showing the operation of the present invention in combination with the photographing device adjusting unit.

Figure 8 is a schematic diagram of the operation of the present invention in combination with a light adjustment unit.

FIG. 9 is a schematic diagram of the operation of the edge warning zone for setting the visible range of the screen on the touch panel; wherein the size of the edge warning zone of the visible range of the screen is changed according to the length of the drag or the tracking range is selected by the touch mode. .

FIG. 10 is a schematic diagram of the operation of the embodiment on the touch panel.

10‧‧‧First Tracking Subject

11‧‧‧Screen warning area edge warning zone (shown in light green for easy explanation or understanding)

Figure 2A and Figure 2C of the figure are schematic diagrams of the effect of a single tracking subject, and Figure 2B is a schematic diagram of the effect of a plurality of tracking subjects.

20‧‧‧Second tracking subject

30‧‧‧Scope of permitted activities of the subject being tracked

Claims (10)

A method for preventing image defocusing during imaging comprises the steps of: a. setting a screen visible range edge warning zone or setting an allowed active range area of the tracked subject in a program or running program of the camera; b. After powering on, set the body to be tracked (including manually setting the tracked subject, or the camera to automatically set the tracked subject); c. performing tracking or performing automatic tracking; d. processing unit calculation or / And tracking whether the tracked subject is close to the screen visible range edge warning zone set in the program or beyond the allowed active range area of the tracked subject; e. if the tracked subject is not close to the screen viewable range If the edge warning zone or the tracked subject does not exceed the allowed activity range area of the tracked subject, perform "continue tracking"; f. if the tracked subject has an alert zone near the edge of the screen visible range or exceeds The area of the permitted range of the tracked subject, the camera or the autofocus unit will follow the letter transmitted by the processing unit Or / and power to make the corresponding action; g. The processing unit continues to check, calculate whether the tracked subject is close to the edge of the screen visible range warning zone, or whether the permitted active range area of the tracked subject is exceeded If yes, execute the fth item, if not, execute the item e until the shutdown is performed. Or when you give up tracking, or reset the body of the tracking. The method for preventing image defocusing according to claim 1, further comprising a light adjusting unit; the step of at least comprising: a. setting a screen visible range edge warning area in the program or running program of the camera device or Setting up an allowed activity range area of the tracked subject; b. setting the tracked subject after booting up (including manually setting the tracked subject, or automatically setting the tracked subject by the camera device); c. performing tracking Or perform automatic tracking; d. The processing unit calculates or/and tracks whether the tracked subject overlaps with the light emitted by the light adjusting unit; e. If the tracked subject overlaps with the light, then perform "continue tracking" "f. If the tracked subject does not overlap with the light, the corresponding action is made according to the signal or/and power transmitted by the processing unit, g. the processing unit continues to check and calculate the tracked Whether the body overlaps with the light, if it is, execute the item e, if not, execute the item f until the shutdown is performed, or the abandonment tracking is performed, or At the time of a given subject tracking. The method for preventing image defocusing according to the scope of claims 1 and 2, wherein the screen visible range edge warning area or the selected active area of the tracked subject is selected on the touch screen. Use the drag to make the camera or the place The unit is to plan the size of the edge warning zone or the allowed activity range of the tracked subject. The method for preventing image defocusing according to items 1 and 2 of the patent application, wherein the method for setting the tracked subject may be a single touch method for setting the tracked subject, or/and adopting A multi-touch method is used to set the tracked subject. A device for preventing image defocusing during imaging according to the first item of the patent application scope, the device comprising at least: an image capturing unit for image capturing and outputting image signals; and an autofocus unit for receiving the processing unit Information or / and power to perform the corresponding action; a tracking unit to track the position of the subject; a processing unit containing an operating program that receives and processes the image signal and coordinates the units, and can support the anti-defocus The processing unit can support the anti-defocusing process when the body being tracked is close to the edge of the visible range of the screen or beyond the allowable range of the subject being tracked; a power supply unit for power supply The power supply unit may be a power storage type power source or an external power source; and is characterized in that when the tracked body approaches the edge of the screen visible range warning area or exceeds the allowable activity range area of the tracked subject , the camera device or the automatic The focusing unit will make the corresponding action according to the signal or/and power transmitted by the processing unit. The apparatus for preventing image defocusing according to claim 5, further comprising a camera adjustment unit. The apparatus for preventing image defocusing according to claim 6, wherein the camera adjustment unit is combined with a tripod. The device for preventing image defocusing according to claim 5, further comprising a light adjusting unit. The method for preventing image defocusing according to claim 1, wherein the method further includes: setting a “screen visibility range edge warning area, or setting an allowable activity range area of the tracked subject” on the touch panel product. The method includes the following steps: a. pressing the first point of the range to be set on the touch panel; b. then performing dragging on the touch panel; c. performing dragging to the desired range a second point; d. running a program or processing unit, and then planning or setting an area on the screen according to the position of the first point and the position of the second point when performing the dragging, and completing the dragging The selection of the scope. The method for preventing image defocusing according to the first aspect of the patent application, which is also included in the product of the touch panel, and the method of setting the "tracked subject of the article category" is The steps of the method include at least: a. pressing a plurality of points of the range to be set on the touch panel; b. running the program or the processing unit to plan or set the track to be tracked according to the position of the plurality of points The subject, and then the camera or tracking unit performs tracking based on the subject of the target.