TWM633047U - Adjustment prompting system for camera - Google Patents

Abstract

The adjustment prompt system of the photography device provided herein includes an image capture device and a central control device. Among them, the image capture device is set at a relatively fixed position with the photographing device and is suitable for capturing an image of an area; the central control device is electrically coupled to the image capture device to obtain an image of the area and determine whether there is a human face in the image of the area. face images. When there is a face image in the area image, the central control device is based on an overlapping ratio between the size of the face image in the preset block in the area image and the size of the face image and the ratio of the face image to the preset block The relative position determines the content of the control signal, and sends out the control signal to remind the user how to adjust the camera device.

Description

Adjustment reminder system for camera equipment

The present invention relates to a technique for improving the use experience of a photographic device, in particular to an adjustment prompt system for a photographic device.

In the process of shooting images where the screen cannot be seen, such as using a camera to take a selfie, the user can only rely on visual inspection to determine the approximate position of himself in the image, and it may take many trials and errors before he can make himself appear. Now place it where you want in the image. For users, this is undoubtedly a very bad operating experience.

In order to solve the above problems, an object of the present invention is to provide an adjustment reminder system for a photographic device, which can tell the user how to make himself appear at a preset position in the image during the image shooting process where the screen cannot be seen.

Viewed from one aspect, the present invention provides an adjustment prompt system for a photographic device, which is suitable for prompting a user how to adjust the photographic device. The adjustment reminder system includes an image capture device and a central control device, wherein the image capture device is arranged at a relatively fixed position relative to the photographing device and is suitable for capturing an image of an area; the central control device is electrically coupled to the image capture device The device obtains the captured area image from the image capture device and judges whether there is a human face image related to the human face in the area image. There are people in the area image When the face image is used, the central control device determines the control signal according to the overlapping ratio of the size of the face image in the preset block in the area image to the size of the face image and the relative position of the face image to the preset block. content, and send out the determined control signal to prompt the user how to adjust the camera device.

In one embodiment, the above adjustment prompting system further includes a prompting device electrically coupled to the central control device to receive a control signal from the central control device and prompt the user how to adjust the photographic device according to the control signal.

In one embodiment, the prompting device includes a plurality of light signs, and each light sign is used to prompt the photographing device to be adjusted in a direction corresponding to the light sign.

In one embodiment, the control signal sent by the central control device when it is determined that the camera device does not need to be adjusted will cause the above-mentioned light to show the first state, thereby prompting that the camera device does not need to be adjusted.

In one embodiment, the control signal sent by the central control device when it judges that the overlapping ratio is lower than the preset threshold value will make the above-mentioned light signal show the second state, thereby indicating that the shooting direction of the camera device is completely deviated from the location of the user.

In one embodiment, when the central control device determines that the overlapping ratio is not lower than the preset threshold value, the control signal sent by the central control device will enable the adjustment mode of the photographing device indicated by the above-mentioned light to increase the overlapping ratio.

In one embodiment, the above-mentioned image capturing device is a component for capturing images in the photographing device.

According to the above, the adjustment prompt system of the photographic device provided by the present invention can generate prompt information to increase the overlap ratio according to information such as the overlap ratio and relative position between the face image and the specific block in the overall image, and the user can The camera device can be adjusted according to the prompt information generated by the adjustment prompt system. Therefore, the adjustment prompt of the photography device provided by the present invention The system allows the user to appear at a preset position in the image during image capture where the user cannot see the screen.

10: Adjust the prompt system

20: Photographic installation

100: Central control device

110: image capture device

210: Lens

220: Prompt device

220a, 220b, 220c, 220d, 220e: lights

300A, 300B, 300C, 300D, 300E, 300F, 300G, IMG: Area image

305: Facial image

310: preset block

CTL: control signal

FIG. 1 is a circuit block diagram of an adjustment prompt system of a photography device according to an embodiment of the present invention.

FIG. 2 is a schematic diagram of the appearance of the adjustment prompt system of the photography device according to an embodiment of the present invention.

3A to 3G are schematic diagrams of images obtained during shooting by the adjustment prompt system of the photography device according to an embodiment of the present invention.

In order to make the description clearly understandable to those skilled in the art, it should be reminded that the phrase "electrically coupled" used below means that electronic signals can be transmitted between two objects that are electrically coupled. to deliver. Unless otherwise limited, the way of transmitting electronic signals can be wired or wireless, and the direction of transmitting electronic signals can be one-way or two-way.

Please refer to FIG. 1 , which is a circuit block diagram of an adjustment prompt system of a photography device according to an embodiment of the present invention. In this embodiment, the adjustment reminder system 10 of the photography device includes a central control device 100 and an image capture device 110 . Wherein, the image capture device 110 can obtain a corresponding regional image IMG through a shooting operation, and the central control device 100 is electrically coupled to the image capture device 110 to obtain the regional image IMG from the image capture device 110 and use various An image processing means (for example: a recognition algorithm based on facial feature points, Feature-based Recognition Algorithm) is used to determine whether there is a human face image related to a human face in the area image IMG. Once it is determined that there is a human face in the image IMG of the display area image, the central control device 100 will further determine the content of the control signal CTL according to the overlapping ratio and relative position between the face image and the preset block, and finally send out the determined control signal CTL to prompt the user how to adjust the photographic device .

According to the above content, the factors determining the content of the final control signal CTL include the overlapping ratio between the face image and the preset block and the relative position between the face image and the preset block. Therefore, in order to correctly use the area image IMG captured by the image capture device 110 to adjust the location or shooting angle of the camera device, there should be a distance between the image capture device 110 and the camera device that the user wants to adjust. Fixed relative position (including relative orientation, distance and line-of-sight angle). That is to say, the image capture device 110 should be set at a relatively fixed position relative to the camera device that the user wants to adjust. In view of this, when the image capturing device 110 and the photographing device exist independently of each other, the user must set the image capturing device 110 relatively fixed to the photographing device that the user wants to adjust before using the adjustment prompt system 10. position. However, it is very cumbersome to confirm the relative position between the image capture device 110 and the camera device before using the adjustment prompt system 10 every time, so it is better to select the image capture device 110 and the camera device. The devices are fixed together, or the components of the photographic device itself for shooting images are directly used as the image capture device 110, so that the need to first confirm the relative position between the image capture device 110 and the photographic device to be adjusted can be eliminated. Whether it meets the originally set conditions is troubled.

Next, please refer to FIG. 1 and FIG. 2 together, wherein FIG. 2 is a schematic diagram of the appearance of an adjustment prompt system of a photography device according to an embodiment of the present invention. In this embodiment, the adjustment reminder system 10 shown in FIG. 1 is integrated with the photographing device 20, wherein the central control device 100 shown in FIG. It is directly replaced by the lens 210 of the photographing device 20 . Further, the adjustment system in this embodiment further includes A prompting device 220 arranged in front of the imaging device 20 is provided. The prompting device 220 is electrically coupled to the central control device 100 to receive the control signal CTL from the central control device 100 and prompt the user how to adjust the shooting position or shooting angle of the photographing device 20 according to the control signal CTL. It is worth mentioning that, although in this embodiment, five lights 220a, 220b, 220c, 220d and 220e are used to form the prompting device 220, those skilled in the art will know that other ways (such as sound ) as a prompting method, so the prompting device 220 is not limited to that provided in this embodiment.

Next, how the central control device 100 determines the content of the control signal CTL according to the area image IMG captured by the image capture device 110 will be described in detail with reference to FIG. 2 and FIGS. 3A-3G .

In the situation shown in FIG. 3A, that is, when there is no face image in the area image 300A captured by the image capture device 110, the control signal CTL sent by the central control device 100 will make the prompt device 220 indicate a specific For example, all the lights 220a-220e are kept in the state of flashing red lights, so as to let the user know that the shooting direction of the photographing device 20 completely deviates from the user's position.

In the situation shown in FIG. 3B, that is, when there is a face image 305 in the area image 300B captured by the image capture device 110, the central control device 100 will first calculate the face image 305 and the preset preset area. The overlapping ratio between the blocks 310 is then determined according to the overlapping ratio and the relative position between the face image 305 and the preset block 310 to determine the content of the control signal CTL. In this embodiment, in order to calculate the overlap ratio between the face image 305 and the preset block 310, the central control device 100 will obtain the image size of the part of the face image 305 in the preset block 310, and The obtained overlapping ratio is obtained by dividing the image size of the part of the obtained face image 305 within the preset block 310 by the size of the face image 305 . In the situation shown in FIG. 3B, because the face image 305 does not enter the preset block 310, so The control signal CTL sent by the central control device 100 can keep all the lights 220a~220e of the prompting device 220 in the state of flashing red lights as in the situation shown in FIG. The shooting direction is completely off from where the user is. Or, in another embodiment, since the face image 305 is biased to the right side of the preset block 310, the content of the control signal CTL can be made to keep the lights 220a, 220c, 220d, and 220e continuously blinking red. At the same time as the state of the light, the light symbol 220b is also in the state of flashing green light, so that the user facing the photographing device 20 can know that the photographing device 20 should be pointed to the direction indicated by the light symbol 220b in a relatively large range (also That is, the left side of the user) moves or rotates so that the face image 305 can enter the range covered by the preset block 310 .

Please refer to FIG. 3C next. In the situation shown in FIG. 3C, the central control device 100 will also first calculate the overlap ratio between the face image 305 in the area image 300C and the preset preset block 310, and then according to the overlap ratio and the face The relative position of the image 305 and the preset block 310 determines the content of the control signal CTL. When the calculated overlap ratio is lower than the preset threshold value (for example, 50%), the content of the control signal CTL determined by the central control device 100 can keep the lights 220a, 220b, 220c, and 220e continuously blinking. At the same time as the red light, the light symbol 220d is also in the state of flashing green light, so that the user facing the camera 20 can know that the camera 20 should be pointed to the direction indicated by the light symbol 220d in a relatively large range ( That is, the user's right side) moves or rotates to greatly increase the overlapping ratio of the face image 305 and the preset block. In another situation, when the calculated overlapping ratio is not lower than the preset threshold (for example, 50%), the content of the control signal CTL determined by the central control device 100 can be set to make the lights 220a, 220b, 220c At the same time, the indicator 220d is turned into a blinking green light, so that the user facing the camera 20 can know that the camera 20 should be slightly moved or rotated in the direction indicated by the indicator 220d And increase the overlap ratio of the face image 305 and the preset block.

Please refer to FIG. 3D next. Because the face image 305 exists in the area image 300D, the central control device 100 also calculates the above-mentioned overlapping ratio first. When the calculated overlapping ratio is lower than the preset threshold value (for example, 50%), the content of the control signal CTL determined by the central control device 100 can keep the lights 220a, 220c, 220d, and 220e continuously blinking. While the red light is in the state, the light symbol 220b is also in the state of flashing green light, so that the user facing the camera 20 can know that the camera 20 should be pointed to the direction indicated by the light symbol 220b in a relatively large range ( That is, the left side of the user) moves or rotates to greatly increase the overlapping ratio of the face image 305 and the preset block. In another situation, when the calculated overlapping ratio is not lower than the preset threshold (for example, 50%), the content of the control signal CTL determined by the central control device 100 can be set to make the lights 220a, 220c, 220d When the lights and 220e are not lit, the light 220b is also in a flashing green state, so that the user facing the camera 20 can know that the camera 20 should be slightly moved or rotated in the direction indicated by the light 220b And increase the overlap ratio of the face image 305 and the preset block.

Please refer to FIG. 3E next. Because the face image 305 exists in the area image 300E, the central control device 100 also calculates the above-mentioned overlapping ratio first. When the calculated overlapping ratio is lower than the preset threshold value (for example, 50%), the content of the control signal CTL determined by the central control device 100 can keep the lights 220b, 220c, 220d, and 220e continuously blinking. At the same time as the state of the red light, the light symbol 220a is also made into a state of flashing green light, so that the user facing the photographing device 20 can know that the photographing device 20 should be directed toward the direction indicated by the light signal 220a in a relatively large range ( That is, the upper side of the user) moves or rotates to greatly increase the overlapping ratio of the face image 305 and the preset block. In another situation, when the calculated overlapping ratio is not lower than the preset threshold (for example, 50%), the content of the control signal CTL determined by the central control device 100 can be set to make the lights 220b, 220c, 220d While both 220e and 220e are not lit, the light 220a is also in the state of flashing green light alone, so as to make the camera facing the camera The user of the device 20 can know that the camera device 20 should be slightly moved or rotated in the direction indicated by the light symbol 220a to increase the overlap ratio of the face image 305 and the preset block.

Next, please refer to FIG. 3F. Because there is a face image 305 in the area image 300F, the central control device 100 also firstly calculates the above-mentioned overlapping ratio. When the calculated overlap ratio is lower than the preset threshold value (for example, 50%), the content of the control signal CTL determined by the central control device 100 can keep the lights 220a, 220b, 220d, and 220e continuously blinking. At the same time as the state of the red light, the light symbol 220c is also made to be in the state of flashing green light, so that the user facing the photographing device 20 can know that the photographing device 20 should be pointed to the direction indicated by the light signal 220c in a relatively large range ( That is, the user's lower side) moves or rotates to greatly increase the overlapping ratio of the face image 305 and the preset block. In another situation, when the calculated overlapping ratio is not lower than the preset threshold (for example, 50%), the content of the control signal CTL determined by the central control device 100 can be set to make the lights 220a, 220b, 220d When the light 220e and 220e are not lit, the light 220c is also in a flashing green state, so that the user facing the camera 20 can know that the camera 20 should be slightly moved or rotated in the direction indicated by the light 220c And increase the overlap ratio of the face image 305 and the preset block.

Please refer to FIG. 3G next. Because the face image 305 in the area image 300G is completely within the coverage of the preset block 310 , the calculated overlapping ratio will reach 100%. In this situation, the central control device 100 can determine that it is no longer necessary to make any adjustments to the photographing device 20, and make all the lights 220a~220e flash green at the same time by determining the content of the control signal CTL. The user who faces the photographing device 20 knows that it is no longer necessary to adjust the shooting position or angle of the photographing device.

According to the above content, it can be seen that the adjustment prompt system of the photography device provided by the present invention can generate prompt information to increase the overlap ratio according to the overlap ratio and relative position of specific blocks in the face image and the overall image, and use Or you can adjust the prompt based on The prompt information generated by the system to adjust the camera device. Therefore, the adjustment prompt system of the photography device provided by the present invention can allow the user to appear at a preset position in the image during the image shooting process where the user cannot see the screen.

10: Adjust the prompt system

100: Central control device

110: image capture device

CTL: control signal

IMG: Region Image

Claims (7)

An adjustment prompting system for a photographic device, suitable for prompting a user how to adjust a photographic device, characterized by comprising: an image capture device, set at a relatively fixed position with the photographic device and suitable for capturing an image of an area; and A central control device, electrically coupled to the image capture device to obtain the area image from the image capture device, and determine whether there is a face image related to a human face in the area image, wherein, in the area image When the face image exists, the central control device compares the size of the face image in a preset block in the area image to the size of the face image by an overlapping ratio and the face image and the preset The content of a control signal is determined by setting the relative position of the blocks, and a control signal is sent to remind the user how to adjust the photographing device. The adjustment reminder system as described in claim 1 further includes a reminder device electrically coupled to the central control device to receive the control signal from the central control device and prompt the user how to adjust according to the control signal The photographic device. The adjustment prompting system as described in Claim 2, wherein the prompting device includes a plurality of light signs, and each of the light signs is used to prompt the photographing device to be adjusted in a direction corresponding to the light sign. The adjustment reminder system as described in claim 3, wherein when the central control device judges that the camera device does not need to be adjusted, it sends out the control signal to make the lights show a first state to remind that the camera device does not need to be adjusted. device. The adjustment reminder system as described in claim 3, wherein when the central control device determines that the overlapping ratio is lower than a preset threshold value, it sends out the control signal to make the lights show a second state to indicate the The shooting direction of the camera device completely deviates from the user's location. The adjustment reminder system as described in claim 5, wherein the central control device sends the control signal to make the adjustment mode of the photographing device indicated by the lights when it judges that the overlapping ratio is not lower than the preset threshold value This overlap ratio can be increased. The adjustment prompt system as claimed in claim 1, wherein the image capturing device is a component of the photographing device for capturing images.

Images