Tracking Apparatus Switching to Peripheral Part Tracking
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Solution Overview
Problem
Existing tracking technologies face challenges in effectively tracking subjects, particularly when face detection fails, leading to inefficient switching between face and peripheral part tracking, which affects the stability and accuracy of subject tracking in photography and video recording.
Innovation Solution
A tracking apparatus and method that includes a face detection unit, a face corresponding region detection unit, a face tracking unit, a peripheral part tracking unit, and a tracking switch unit, which detect and track faces and peripheral parts, such as the breast, using luminance and color information, and switch between face and peripheral part tracking when face detection is ineffective.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If face tracking is used as the primary tracking method, then tracking accuracy is improved when the subject's face is visible, but tracking reliability deteriorates when face detection fails
Solution Approach 1:
The system changes the tracking target parameter from face-only to peripheral parts (such as body regions) when face detection fails. The tracking switch unit monitors face detection results and switches between face tracking and peripheral part tracking based on detection effectiveness, ensuring continuous reliable tracking regardless of face visibility.
2Measurement precision
If only face tracking is implemented, then tracking precision is high when face is detectable, but tracking continuity deteriorates when face detection fails
Solution Approach 1:
The system performs preliminary detection of peripheral parts (such as body regions) in advance, so when face detection fails, the peripheral part tracking can immediately take over without interruption. This preliminary preparation ensures seamless transition and maintains tracking continuity.
3Reliability
If multiple tracking methods (face and peripheral part) are implemented with switching capability, then tracking reliability is improved, but device complexity increases
Solution Approach 1:
The tracking switch unit serves multiple functions: it monitors face detection results, determines tracking effectiveness, and switches between face tracking and peripheral part tracking. This multi-functionality reduces the need for separate control systems and minimizes overall system complexity while maintaining high reliability.
4Stability of the object's composition
If peripheral part tracking is added as a backup to face tracking, then tracking stability is improved when face detection fails, but processing time increases
Solution Approach 1:
The system performs preliminary detection of peripheral parts (such as body regions) in advance, so when face detection fails, the peripheral part tracking can immediately take over without interruption. This preliminary preparation ensures seamless transition and maintains tracking continuity.
Data Source
AI summary
A tracking apparatus includes a face detection unit, a face corresponding region detection unit, a face tracking unit, a peripheral part tracking unit, a tracking switch unit. The face tracking unit tracks the face in accordance with a result detected by the face detection unit or a result detected by the face corresponding region detection unit. The peripheral part tracking unit tracks, as a part other than the face, a part of the subject having a preset positional relationship with the face. The tracking switch unit switches to the tracking of a part other than the face by the peripheral part tracking unit when the face is not tracked by the face tracking unit.