Granted Patent B2

US 12,445,570 · App. 18/004,844 · Granted Oct 14, 2025

Inventors: Lei Fang (Shenzhen, CN); Yuanying Nie (Xi'an, CN); Xingong Zhang (Xi'an, CN)

Assignee: Huawei Technologies Co., Ltd.

H04N7/0122H04N23/661H04N23/667

Abstract

Claims (77)

1. A method, applied to an electronic device, the method comprising:

collecting, by a camera of the electronic device, a video image, and obtaining a video stream with a first resolution and first frame rate based on the video image;

transmitting, by the camera, the video stream to a device body of the electronic device through a first transmission channel;

displaying, by the device body, the video stream using a display of the device body;

obtaining, by the camera, a photographing stream with a second resolution and second frame rate based on the video image in response to the camera receiving a photographing instruction through a second transmission channel, wherein the second resolution is greater than the first resolution and the second frame rate is slower than the first frame rate;

transmitting, by the camera, the photographing stream to the device body through the second transmission channel, wherein the second transmission channel is different from the first transmission channel; and

obtaining, by the device body, a photo based on the photographing stream.

2. The method according to claim 1 , wherein:

collecting, by the camera, the video image, and obtaining the video stream with the first resolution and the first frame rate based on the video image comprises:

collecting, by the camera, a first video image at the second resolution, and processing the first video image to obtain the video stream with the first resolution; and

obtaining, by the camera, the photographing stream with the second resolution and the second frame rate based on the video image comprises:

obtaining, by the camera, the photographing stream with the second resolution and the second frame rate based on the first video image.

3. The method according to claim 2 , wherein obtaining, by the camera, the photographing stream with the second resolution and the second frame rate based on the first video image comprises:

capturing, by the camera, one or more frames of images of the first video image to form the photographing stream.

4. The method according to claim 1 , wherein:

collecting, by the camera, the video image, and obtaining the video stream with the first resolution and the first frame rate based on the video image comprises:

collecting, by the camera, a second video image at the first resolution, and obtaining the video stream with the first resolution and the first frame rate based on the second video image; and

obtaining, by the camera, the photographing stream with the second resolution and the second frame rate based on the video image in response to the device body receiving the photographing instruction comprises:

in response to the device body receiving the photographing instruction, collecting, by the camera, a first video image at the second resolution, and obtaining the photographing stream with the second resolution and the second frame rate based on the first video image.

5. The method according to claim 4 , wherein obtaining, by the camera, the photographing stream with the second resolution and the second frame rate based on the first video image comprises:

capturing, by the camera, one or more frames of images of the first video image to form the photographing stream.

6. The method according to claim 1 , further comprising:

obtaining, by the camera, an artificial intelligence (AI) stream with a third resolution based on the video image, wherein the third resolution is less than the first resolution; and

performing, by the camera, image enhancement processing on the video image based on the AI stream.

7. The method according to claim 1 , wherein the camera and the device body are connected to each other using a universal serial bus (USB) connection implementing the first transmission channel and the second transmission channel, the first transmission channel is a USB video class (UVC) channel, and the second transmission channel is a remote network driver interface specification (RNDIS) channel.

8. An electronic device, comprising:

a device body comprising a display; and

a camera connected to the device body, wherein the camera is configured to:

collect a video image, and obtain a video stream with a first resolution and first frame rate based on the video image; and

transmit the video stream to the device body through a first transmission channel;

wherein the device body is configured to:

display the video stream using the display;

receive a photographing instruction through a second transmission channel; and

in response to the device body receiving the photographing instruction, obtain a photographing stream with a second resolution and second frame rate based on the video image collected by the camera, wherein the second resolution is greater than the first resolution and the second frame rate is slower than the first frame rate;

wherein the camera is further configured to:

transmit the photographing stream to the device body through the second transmission channel, wherein the second transmission channel is different from the first transmission channel; and

wherein the device body is further configured to:

obtain a photo based on the photographing stream.

9. The electronic device according to claim 8 , wherein the camera is configured to:

collect a first video image at the second resolution;

process the first video image to obtain the video stream with the first resolution and the first frame rate; and

obtain the photographing stream with the second resolution and the second frame rate based on the first video image.

10. The electronic device according to claim 9 , wherein the camera being configured to obtain the photographing stream with the second resolution and the second frame rate based on the first video image comprises the camera being configured to:

capture one or more frames of images of the first video image to form the photographing stream.

11. The electronic device according to claim 8 , wherein the camera is configured to:

collect a second video image at the first resolution, and obtain the video stream with the first resolution and the first frame rate based on the second video image; and

in response to the device body receiving the photographing instruction, collect a first video image at the second resolution, and obtain the photographing stream with the second resolution and the second frame rate based on the first video image.

12. The electronic device according to claim 11 , wherein the camera being configured to obtain the photographing stream with the second resolution and the second frame rate based on the first video image comprises the camera being configured to:

capture one or more frames of images of the first video image to form the photographing stream.

13. The electronic device according to claim 8 , wherein the camera is further configured to:

obtain an artificial intelligence (AI) stream with a third resolution based on the video image, wherein the third resolution is less than the first resolution; and

perform image enhancement processing on the video image based on the AI stream.

14. The electronic device according to claim 8 , wherein the camera and the device body are connected to each other using a universal serial bus (USB) connection implementing the first transmission channel and the second transmission channel, the first transmission channel is a USB video class (UVC) channel, and the second transmission channel is a remote network driver interface specification (RNDIS) channel.

15. A non-transitory computer-readable storage medium, wherein the non-transitory computer-readable storage medium stores computer instructions, and when the computer instructions are run on an electronic device, the electronic device is enabled to perform:

collecting, by a camera of the electronic device, a video image, and obtaining a video stream with a first resolution and first frame rate based on the video image;

transmitting, by the camera, the video stream to a device body of the electronic device through a first transmission channel;

displaying, by the device body, the video stream using a display of the device body;

obtaining, by the camera, a photographing stream with a second resolution and second frame rate based on the video image in response to the camera receiving a photographing instruction through a second transmission channel, wherein the second resolution is greater than the first resolution and the second frame rate is slower than the first frame rate;

transmitting, by the camera, the photographing stream to the device body through the second transmission channel, wherein the second transmission channel is different from the first transmission channel; and

obtaining, by the device body, a photo based on the photographing stream.

16. The non-transitory computer-readable storage medium according to claim 15 , wherein

collecting, by the camera, the video image, and obtaining the video stream with the first resolution and the first frame rate based on the video image comprises:

collecting, by the camera, a first video image at the second resolution, and processing the first video image to obtain the video stream with the first resolution; and

obtaining, by the camera, the photographing stream with second resolution and the second frame rate based on the video image comprises:

obtaining, by the camera, the photographing stream with the second resolution and the second frame rate based on the first video image.

17. The non-transitory computer-readable storage medium according to claim 16 , wherein obtaining, by the camera, the photographing stream with the second resolution and the second frame rate based on the first video image comprises:

capturing, by the camera, one or more frames of images of the first video image to form the photographing stream.

18. The non-transitory computer-readable storage medium according to claim 15 , wherein

collecting, by the camera, the video image, and obtaining the video stream with the first resolution and the first frame rate based on the video image comprises:

collecting, by the camera, a second video image at the first resolution, and obtaining the video stream with the first resolution and the first frame rate based on the second video image; and

obtaining, by the camera, the photographing stream with the second resolution and the second frame rate based on the video image in response to the device body receiving the photographing instruction comprises:

in response to the device body receiving the photographing instruction, collecting, by the camera, a first video image at the second resolution, and obtaining the photographing stream with the second resolution and the second frame rate based on the first video image.

19. The non-transitory computer-readable storage medium according to claim 18 , wherein obtaining, by the camera, the photographing stream with the second resolution and the second frame rate based on the first video image comprises:

capturing, by the camera, one or more frames of images of the first video image to form the photographing stream.

20. The non-transitory computer-readable storage medium according to claim 15 , wherein the computer instructions further enable the electronic device to perform:

obtaining, by the camera, an artificial intelligence (AI) stream with a third resolution based on the video image, wherein the third resolution is less than the first resolution; and

performing, by the camera, image enhancement processing on the video image based on the AI stream.

Assignments (1)

Priority Claims (1)

Continuity (1)

References Cited (24)