Rotary Base Camera with Dynamic Tilt Control for Subject Tracking
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Solution Overview
Problem
Existing monitoring systems with automatic panning functions can only image a predetermined fixed zone and fail to center on the location of subject motion or faces during automatic panning.
Innovation Solution
A camera device with a rotary base equipped with an imaging unit, motion and face detecting unit, and control instruction creating units that adjust tilt, pan, and zoom based on detected subject motion or faces to dynamically focus on the subject's location.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If automatic panning images a predetermined fixed zone while reciprocating, then the monitoring coverage is stable and predictable, but the system cannot image a zone centered on subject motion or face locations
Solution Approach 1:
The motion and face detecting unit continuously monitors the video signal to detect subject motion or faces, providing feedback to the tilt control instruction creating unit. This feedback mechanism enables the system to dynamically adjust the imaging zone to center on detected subjects while maintaining automatic panning operation, resolving the contradiction between fixed zone stability and subject-centered adaptability
Solution Approach 2:
The system transitions from a static fixed-zone panning approach to a dynamic approach where the imaging zone can be adjusted in real-time based on detected subject motion or faces. The tilt angle is dynamically modified during panning operations to center the subject in the frame, enabling the system to adapt to changing scene conditions while maintaining automated operation
2Productivity
If the imaging unit rotates quickly in panning direction to cover predetermined zone, then monitoring efficiency is high, but subject imaging may be blurred or miss detailed views
Solution Approach 1:
The system maintains continuous automatic panning operation to ensure comprehensive monitoring coverage, while simultaneously applying tilt adjustments to keep detected subjects centered in the frame. This continuous operation in both panning and tilt directions ensures that subjects are consistently captured clearly without interrupting the overall monitoring efficiency
Solution Approach 2:
The system adds the tilt dimension to the traditional one-dimensional panning motion. By controlling rotation in both panning and tilting directions simultaneously, the system can maintain high panning speed for coverage while using the additional tilt degree of freedom to center subjects and improve imaging clarity, effectively resolving the contradiction between speed and precision
Data Source
AI summary
A camera device with a rotary base has an automatic panning function of imaging a predetermined zone while reciprocating in a preset panning direction. The camera device includes: an imaging unit configured to image a subject and output a video signal; a rotary base configured to cause the imaging unit to rotate in a panning direction and a tilting direction; a motion and face detecting unit configured to detect the motion or face of the subject based on the video signal output from the imaging unit; and a tilt control instruction creating unit configured to create a tilt control instruction based on the detection result from the motion and face detecting unit and give the tilt control instruction to the rotary base to cause the imaging unit to rotate in the tilting direction.