CN-122029800-A - Image shooting method and system in video call process

Abstract

The present invention relates to a method of image capturing during a video call performed by at least one processor of a first user terminal. The image photographing method in the course of the video call includes the steps of starting a video call between a first user terminal related to a first user included in a chat room of an instant messaging application and a second user terminal related to a second user, transmitting a first image sequence photographed by an image sensor of the first user terminal to the second user terminal when the video call is made, entering a multi-person photo photographing mode when the video call is made, and transmitting a first image photographed by the image sensor to the second user terminal in the multi-person photo photographing mode, the first image sequence being transmitted at a first resolution, the first image being transmitted at a second resolution different from the first resolution.

Inventors

• AN DERONG
• QUAN TINGXUAN
• JIN ZHIXIU
• JIN HUAN
• LI ZAIXUAN
• JIN MINTING
• JIN XIYUAN
• JIN GENGMIN
• XU XIANGHE
• JIN ZHENGLU
• LI TAIJING

Assignees

• 连普乐士株式会社

Dates

Publication Date

20260512

Application Date

20240812

Priority Date

20231017

Claims (20)

1. 1. An image capturing method in a video call process, which is executed by at least one processor of a first user terminal, comprising the steps of: Starting to conduct video call between a first user terminal related to a first user and a second user terminal related to a second user included in a chat room of an instant messaging application; Transmitting a first image sequence photographed by an image sensor of the first user terminal to the second user terminal while the video call is being made; Entering a multi-person photo taking mode while the video call is in progress, and In the multi-person photo taking mode, transmitting a first image taken by the image sensor to the second user terminal, The first image sequence is transmitted at a first resolution, The first image is transmitted at a second resolution different from the first resolution.
2. 2. The method for capturing images during a video call according to claim 1, further comprising the step of outputting a composite image on a display of said first user terminal, said composite image being composed of said first image including said first user and a second image including said second user.
3. 3. The method of image capture during a video call of claim 1, wherein the second resolution is greater than the first resolution.
4. 4. The method for capturing images during a video call as claimed in claim 1, wherein, The first resolution is above a preset first minimum resolution, The second resolution is above a preset second minimum resolution, The second minimum resolution is greater than the first minimum resolution.
5. 5. The method for capturing images during a video call as defined in claim 1, further comprising the step of transmitting a second sequence of images captured by said image sensor to a second user terminal after entering said multi-person photo capturing mode and before capturing said first image, The second image sequence is transmitted to the second user terminal at a third resolution, The third resolution is different from the first resolution and the second resolution.
6. 6. The method of image capture during a video call of claim 5, wherein the third resolution is greater than the first resolution and less than the second resolution.
7. 7. The method for capturing images during a video call as claimed in claim 5, wherein, The first resolution is above a preset first minimum resolution, The second resolution is above a preset second minimum resolution, The third resolution is above a preset third minimum resolution, The third minimum resolution is greater than the first minimum resolution, The second minimum resolution is greater than the third minimum resolution.
8. 8. The method for capturing images during a video call as claimed in claim 7, wherein, The first resolution is below the third minimum resolution, The third resolution is below the second minimum resolution.
9. 9. The image capturing method in the video call process according to claim 1, further comprising the steps of: Outputting a video call screen on a display of the first user terminal after starting the video call and before entering the multi-person photo taking mode, and After entering the multi-person photo taking mode and before taking the first image, outputting a multi-person photo taking preview screen on the display, The image quality of the multi-person photo shooting preview picture is higher than that of the video call picture.
10. 10. The method for capturing images during a video call as claimed in claim 5, wherein, The first resolution and the third resolution are determined based on a network bandwidth associated with the first user terminal, The third resolution is greater than the first resolution, The frame rate of the second image sequence is lower than the frame rate of the first image sequence.
11. 11. The method of image capture during a video call of claim 5, wherein the step of transmitting the second sequence of images to a second user terminal comprises the steps of: determining a temporary resolution associated with the second image sequence based on a network bandwidth associated with the first user terminal, and In response to determining that the temporal resolution is less than a preset minimum resolution, increasing the resolution of the second image sequence from the temporal resolution to the third resolution and decreasing the frame rate of the second image sequence.
12. 12. The image capturing method during a video call according to claim 1, further comprising the steps of, after entering the multi-person photo capturing mode: receiving user input from the first user selecting a multi-person photograph take button; Capturing the first image including the first user with the image sensor; Receiving a second image including the second user from the second user terminal, and The first image and the second image are synthesized to generate a synthesized image.
13. 13. The method of image capture during a video call of claim 12, wherein the resolution of the composite image is greater than the first resolution.
14. 14. The method for capturing images during a video call of claim 12, further comprising the step of transmitting said composite image to said second user terminal via a chat room including said first user and said second user.
15. 15. The image capturing method during a video call according to claim 12, further comprising the steps of: generating metadata of a network telephone call data packet including data corresponding to the composite image, and Transmitting the metadata with the second user participating in the video call as an object, The metadata is intra-protocol metadata of a network telephone call channel which is connected by taking the first user and the second user participating in the video call as objects.
16. 16. The method for capturing images during a video call as claimed in claim 1, wherein, The step of entering the multi-person photo taking mode includes the step of entering a specific subgroup of a plurality of subgroups related to multi-person photo taking, The second user is included in the same particular subgroup as the first user.
17. 17. The image capturing method in the course of a video call according to claim 1, wherein the maximum number of users capable of participating in the capturing of the multi-person photo is smaller than the maximum number of users capable of participating in the video call.
18. 18. The image capturing method in the video call process according to claim 1, further comprising the steps of: after entering the multi-person photo taking mode, displaying the first image sequence in a first area of a display of the user terminal in response to a determination that a user who is participating in the multi-person photo taking mode is below a preset person, and And displaying a second image sequence received from the second user terminal in a second area of the display.
19. 19. A non-transitory computer-readable recording medium, characterized in that instructions for executing the image capturing method in the video call process according to claim 1 in a computer are recorded.
20. 20. A first user terminal, comprising: A communication module; A display; a memory; Image sensor, and At least one processor coupled to the memory for executing at least one computer readable program embodied in the memory, The at least one program includes a plurality of instructions to perform the steps of: Starting to conduct video call between a first user terminal related to a first user and a second user terminal related to a second user included in a chat room of an instant messaging application; transmitting a first image sequence photographed by the image sensor to the second user terminal while the video call is being conducted; Entering a multi-person photo taking mode while the video call is in progress, and In the multi-person photo taking mode, transmitting a first image taken by the image sensor to the second user terminal, The first image sequence is transmitted at a first resolution, The first image is transmitted at a second resolution different from the first resolution.

Description

Image shooting method and system in video call process Technical Field The present invention relates to a method and system for photographing images during a video call, and more particularly, to a method and apparatus for transmitting a transmitted image sequence and an image for generating a composite image to other user terminals at resolutions different from each other and outputting the generated composite image when a video call is performed. Background Recently, with the popularization of mobile devices such as smartphones and the development of the internet, an instant messaging application program and the like capable of realizing a voice call and a video call between a plurality of users are widely used. On the other hand, there is an increasing demand for "photo kiosks (photobooth)" that can print and provide photos taken together under multiple lines. However, the image capturing function provided in the existing video call providing service captures only a picture at a specific moment in time of a video call, and thus it is difficult to provide an image applicable to various formats, concepts, photo subjects, and the like to a user, and furthermore, it is difficult to acquire a composite image of higher resolution. Therefore, it is difficult for the existing image capturing service to provide an image satisfactory to the user, compared with the case where the "photo booth" performs photographing. Disclosure of Invention Technical problem The present invention provides an image capturing method, a computer-readable non-transitory recording medium recording instructions, and a system (apparatus) for solving the problems described above in the course of a video call. Technical proposal The present invention can be implemented in various ways including a method, a system (apparatus), or a computer readable non-transitory recording medium recording instructions. An image photographing method in a video call process performed by at least one processor of a first user terminal according to an embodiment of the present invention includes starting a video call (video call) between the first user terminal related to a first user included in a chat room of an instant messaging application and a second user terminal related to a second user, transmitting a first image sequence photographed by an image sensor of the first user terminal to the second user terminal when the video call is performed, entering a multi-person photograph photographing mode when the video call is performed, and transmitting a first image photographed by the image sensor to the second user terminal in the multi-person photograph photographing mode, the first image sequence being transmitted at a first resolution, the first image being transmitted at a second resolution different from the first resolution. In an embodiment of the invention, the method further comprises the step of outputting a composite image resulting from the combination of the first image comprising the first user and the second image comprising the second user on the display of the first user terminal. In one embodiment of the present invention, the second resolution is greater than the first resolution. In an embodiment of the present invention, the first resolution is greater than a preset first minimum resolution, the second resolution is greater than a preset second minimum resolution, and the second minimum resolution is greater than the first minimum resolution. In an embodiment of the invention, the method further comprises the step of transmitting a second image sequence captured by the image sensor to the second user terminal after entering the multi-person photo capturing mode and before capturing the first image, the second image sequence being transmitted to the second user terminal at a third resolution, the third resolution being different from the first resolution and the second resolution. In an embodiment of the invention, the third resolution is greater than the first resolution and less than the second resolution. In an embodiment of the present invention, the first resolution is greater than a preset first minimum resolution, the second resolution is greater than a preset second minimum resolution, the third resolution is greater than a preset third minimum resolution, the third minimum resolution is greater than the first minimum resolution, and the second minimum resolution is greater than the third minimum resolution. In an embodiment of the invention, the first resolution is below a third minimum resolution, and the third resolution is below the second minimum resolution. In an embodiment of the invention, the method further comprises the steps of outputting a video call picture on the display of the first user terminal after starting the video call and before entering the multi-person picture taking mode, and outputting a multi-person picture taking preview picture on the display after entering the multi-person picture taking mode and bef