Fixed Camera Digital PTZ for Video Conference Tracking
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Solution Overview
Problem
Existing video conference systems face challenges in providing high-quality, flexible, and cost-effective camera solutions for tracking participants and objects within various meeting settings, as mechanical PTZ camera systems are intrusive, costly, and require frequent maintenance.
Innovation Solution
A camera system comprising a fixed wide lens camera and three long focus lens cameras, which collectively provide digital pan-tilt-zoom (PTZ) capabilities without mechanical movement, allowing for efficient coverage of meeting spaces with high-quality images and reduced maintenance costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If mechanical PTZ camera systems are used to track participants and provide flexible video coverage, then the system achieves good tracking capability and adaptability, but the device becomes intrusive, costly, and requires frequent maintenance due to mechanical wear and tear
Solution Approach 1:
The patent replaces mechanical PTZ (pan-tilt-zoom) camera systems with a fixed camera system that uses digital signal processing to achieve tracking and framing. Instead of physically moving camera components, the system captures a wide field of view and uses digital panning, tilting, and zooming of the captured video signal to simulate mechanical PTZ functionality, thereby eliminating mechanical wear and maintenance requirements while maintaining adaptability for tracking participants
Solution Approach 2:
The patent creates a digital copy of the mechanical PTZ functionality through software-based image processing. By digitally manipulating the video signal from a fixed camera (panning, tilting, zooming in software), the system replicates the effects of mechanical PTZ movement without the physical hardware, thus achieving the same tracking capability without the associated maintenance issues
2Adaptability or versatility
If mechanical PTZ camera systems are used to provide flexible video coverage, then the system achieves good adaptability, but the cost increases due to mechanical components and maintenance requirements
Solution Approach 1:
The patent eliminates expensive mechanical components by replacing them with digital signal processing capabilities. The fixed camera system with digital PTZ functionality reduces hardware costs and removes ongoing maintenance expenses associated with mechanical wear, while maintaining the flexibility to track and frame participants through software-based image manipulation
Solution Approach 2:
The patent employs a fixed camera system that is simpler and less expensive to manufacture than mechanical PTZ systems. By using a stationary camera with digital processing rather than complex mechanical assemblies, the system achieves comparable functionality at a lower cost, effectively replacing expensive mechanical components with more economical digital solutions
3Reliability
If mechanical PTZ camera systems are used for speaker tracking, then the system achieves good tracking performance, but the mechanical components cause wear and tear requiring frequent maintenance
Solution Approach 1:
The patent replaces mechanical PTZ components with a fixed camera and digital signal processing system. The fixed camera continuously captures the scene, and digital panning, tilting, and zooming algorithms process the video signal to maintain proper framing of speakers and participants. This eliminates all mechanical moving parts that would wear out, thereby maintaining reliable tracking performance without any mechanical maintenance requirements
Data Source
AI summary
A camera system for a video conference endpoint includes a fixed wide lens camera providing a view of a space, a first fixed camera providing a view of a first portion of the space, a second fixed camera providing a view of a second portion of the space, a third fixed camera providing a view of a third portion of the space, and a processor operatively coupled to each of the cameras. Each of the cameras is configured to produce a video signal and the processor is configured to receive the video signals and select a relevant video signal from the video signals. The processor is also configured to process the relevant video signal by digitally panning, tilting, and zooming of the relevant video signal to generate a video stream from the processed video signal.