Abstract: A method and an apparatus of constructing a chess playing model are disclosed, method includes: acquiring a video image of each chess player; determining a two-dimensional position information for a first expression characterization point in the video image and a marking information for a facial structure characterization point in the first expression characterization point; determining a rotation information for each chess player in a specified direction; reconstructing a three-dimensional reference face model of each chess player so as to generate a three-dimensional target face model of the chess player; reconstructing a three-dimensional target chess player model of the chess player; reconstructing a three-dimensional target chess game model; and reconstructing a three-dimensional target chess playing model.

Abstract: The present disclosure provides a method, an apparatus, a medium and an electronic device for generating a round-table video conference. In the present disclosure, in response to the head instruction information of the participant, the scrolling starting number is determined from the round-table seat number sequence through the video of the current presenter, and the scrolling ending number is determined from the round-table seat number sequence through the video of the current speaker, thereby the scrolling sequence of the target seat numbers is obtained. According to the scrolling sequence, a manner of the virtual camera in the center of the round table being rotated and shooting is simulated, and the images of the participants queued between two points are scrolled and displayed, so that a virtual round-table conference scene is created in the video conference.

Abstract: A method and an apparatus for controlling a video frame image in a live classroom, and a computer readable storage medium and an electronic device are provided. The method includes: acquiring image information of a target person in the video frame image; determining a plurality of detection points according to the image information; determining distribution information of the plurality of detection points based on relationship between the plurality of detection points and a preset first area; determining adjustment information of a camera based on the distribution information and camera parameters; and adjusting the camera according to the adjustment information, so that at least a part of the image information of the target person in the video frame image is located in a preset second area, wherein the second area is located in the first area.

Abstract: A method and an apparatus for controlling a camera, and a medium and an electronic device are disclosed. The method includes: acquiring head portrait information of a teacher in a video frame image of a live classroom in real time; analyzing the head portrait information to acquire organ identification information of each organ, wherein the organ identification information is used to indicate whether the organ exists; determining an orientation type of a face in the head portrait information based on the organ identification information, wherein the orientation type comprises a forward type, a lateral type, and a backward type; controlling the camera to focus on the teacher in response to the orientation type being the forward type; and controlling the camera to focus on a blackboard in response to the orientation type being the backward type or the lateral type.

Abstract: A follow-up shooting method and device, a medium and an electronic device are provided. The follow-up shooting method includes: acquiring a video image in a live classroom, wherein the video image comprises at least one object; analyzing the video image to obtain a gesture image for controlling a camera; and determining whether to control the camera to track and shoot an execution object related to the gesture image based on the gesture image.

Abstract: A method and an apparatus of constructing a chess playing model are disclosed, method includes: acquiring a video image of each chess player; determining a two-dimensional position information for a first expression characterization point in the video image and a marking information for a facial structure characterization point in the first expression characterization point; determining a rotation information for each chess player in a specified direction; reconstructing a three-dimensional reference face model of each chess player so as to generate a three-dimensional target face model of the chess player; reconstructing a three-dimensional target chess player model of the chess player; reconstructing a three-dimensional target chess game model; and reconstructing a three-dimensional target chess playing model.

Abstract: A follow-up shooting method and device, a medium and an electronic device are provided. The follow-up shooting method includes: acquiring a video image in a live classroom, wherein the video image comprises at least one object; analyzing the video image to obtain a gesture image for controlling a camera; and determining whether to control the camera to track and shoot an execution object related to the gesture image based on the gesture image.

Abstract: The present disclosure provides a method, an apparatus, a medium and an electronic device for generating a round-table video conference. In the present disclosure, in response to the head instruction information of the participant, the scrolling starting number is determined from the round-table seat number sequence through the video of the current presenter, and the scrolling ending number is determined from the round-table seat number sequence through the video of the current speaker, thereby the scrolling sequence of the target seat numbers is obtained. According to the scrolling sequence, a manner of the virtual camera in the center of the round table being rotated and shooting is simulated, and the images of the participants queued between two points are scrolled and displayed, so that a virtual round-table conference scene is created in the video conference.

Abstract: A method and an apparatus for controlling a video frame image in a live classroom, and a computer readable storage medium and an electronic device are provided. The method includes: acquiring image information of a target person in the video frame image; determining a plurality of detection points according to the image information; determining distribution information of the plurality of detection points based on relationship between the plurality of detection points and a preset first area; determining adjustment information of a camera based on the distribution information and camera parameters; and adjusting the camera according to the adjustment information, so that at least a part of the image information of the target person in the video frame image is located in a preset second area, wherein the second area is located in the first area.

Abstract: A method and an apparatus for controlling a camera, and a medium and an electronic device are disclosed. The method includes: acquiring head portrait information of a teacher in a video frame image of a live classroom in real time; analyzing the head portrait information to acquire organ identification information of each organ, wherein the organ identification information is used to indicate whether the organ exists; determining an orientation type of a face in the head portrait information based on the organ identification information, wherein the orientation type comprises a forward type, a lateral type, and a backward type; controlling the camera to focus on the teacher in response to the orientation type being the forward type; and controlling the camera to focus on a blackboard in response to the orientation type being the backward type or the lateral type.

Abstract: The present disclosure provides a method and a device for adjusting a multimedia blackboard, a medium, and an electronic apparatus. In the present disclosure, a three-dimensional model of a target space is established, and a multimedia blackboard is adjusted by using the three-dimensional model and determining distribution positions of students in a classroom to ensure that the students can watch the multimedia blackboard better and reduce the fatigue feeling about the class, which helps in improving an efficiency of having the class.

Abstract: The present disclosure provides a method and a device for adjusting a multimedia blackboard, a medium, and an electronic apparatus. In the present disclosure, a three- dimensional model of a target space is established, and a multimedia blackboard is adjusted by using the three-dimensional model and determining distribution positions of students in a classroom to ensure that the students can watch the multimedia blackboard better and reduce the fatigue feeling about the class, which helps in improving an efficiency of having the class.

Abstract: The present disclosure provides a method and a device for adjusting display of a multimedia blackboard, a medium, and an electronic device. The method includes: obtaining brightness simultaneously acquired by a plurality of light sensors of the multimedia blackboard; analyzing the brightness and perform a smooth processing to generate a first brightness distribution image; obtaining a next frame display image and a backlight brightness of a display device; adjusting a pixel color attribute value of a frame pixel in the next frame display image and/or the backlight brightness according to a preset visual adjustment information, the first brightness distribution image, the next frame display image, and the backlight brightness.

Abstract: The present disclosure provides a method and a device for adaptively controlling a multimedia blackboard, a medium, and an electronic apparatus. In the present disclosure, a three-dimensional model of a target space is established, and a distribution area of the students in a classroom may be obtained by an adaptive algorithm based on the three-dimensional model and an angle of the multimedia blackboard may be automatically controlled to ensure that the students can watch the multimedia blackboard better and reduce the fatigue feeling about the class, which helps in improving an efficiency of having the class.