Camera Field-of-View Adjustment for Adaptive Conference Framing

The patent applies the dynamics principle by making the camera field of view adjustable rather than fixed. The system dynamically changes the field of view parameters (horizontal and vertical angles) based on the detected number and positions of conferees. When fewer conferees are present, the field of view is narrowed to enlarge their portraits; when more conferees are present, the field of view is widened to frame all persons, thus resolving the contradiction between fixed field of view area and adaptability to different numbers of conferees.

The patent applies the self-service principle by enabling the camera system to automatically adjust its own field of view based on face detection and tracking algorithms. The system detects human faces in the video feed, calculates their positions, and automatically modifies the horizontal and vertical field of view parameters to optimally frame all conferees. This eliminates the need for manual remote control adjustment while maintaining adaptability to different meeting scenarios.

The patent applies the parameter changes principle by dynamically adjusting the field of view parameters (horizontal angle and vertical angle) based on the detected configuration of conferees. The system calculates the positions of all detected faces and determines optimal field of view parameters that maximize portrait size while ensuring all conferees remain within the frame. This allows the system to adaptively balance between portrait enlargement and accommodating the number of conferees.