Object Tracking Apparatus Analog Discrimination
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Solution Overview
Problem
Conventional object tracking technologies often fail to precisely track objects when analogs with similar features are present near the target object, leading to mistaken tracking or inability to track due to insufficient discrimination between the object and its surroundings.
Innovation Solution
An object tracking apparatus and method that determine the positional relationship between the object and analogs, switching processing modes based on the relationship to predict or search for the object's position, using feature templates and motion states to prevent tracking transfer and accurately identify the object even when analogs are nearby.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If template-based tracking is used to follow the object, then the object can be continuously focused on, but when an analog with similar features exists near the object, the analog may be mistakenly tracked instead
Solution Approach 1:
The patent segments the tracking task into two independent processes: object tracking using a template and analog detection using a separate detection mechanism. The tracking unit and detection unit operate independently but coordinate through position comparison, allowing the system to maintain reliable object tracking while simultaneously identifying potential analogs that could cause mistaken tracking.
Solution Approach 2:
The patent introduces an intermediary comparison mechanism that evaluates the positional relationship between the tracked object and detected analogs. This intermediary process determines whether to trust the template-based tracking result or switch to predicted position, effectively mediating between reliable tracking and accurate discrimination when analogs are present.
2Measurement precision
If the tracked object and analog are both searched from the current frame, then both positions can be specified, but when the analog is extremely similar to the object, the effective discrimination information cannot be extracted and tracking fails
Solution Approach 1:
The patent performs preliminary analog detection and position specification before finalizing the object tracking result. By detecting potential analogs in advance and comparing their positions with the tracked object, the system can identify situations where discrimination would fail and switch to using predicted position, preventing tracking failure before it occurs.
Solution Approach 2:
The patent implements a feedback mechanism where the detected analog position is fed back to the tracking process. When the analog is extremely similar to the object and discrimination information is insufficient, the feedback triggers a switch from template-based tracking to predicted-position-based tracking, ensuring tracking reliability is maintained.
3Measurement precision
If the object is searched from the current frame to specify its position, then the latest position can be obtained, but when an analog exists in the surrounding region, the search may mistakenly identify the analog as the object
Solution Approach 1:
The patent merges two approaches: template-based object tracking and separate analog detection. By combining the results of both processes and comparing their positional relationships, the system can distinguish between the actual object and analogs, obtaining accurate object position specification while maintaining tracking continuity even when analogs are present in the surrounding region.
Data Source
AI summary
An aspect of the invention implements an object tracking apparatus (10) that can precisely track an object even if an analog of the object exists around the object. The object tracking apparatus (10) includes a state determining unit (31) that determines a tracking state from a positional relationship between the object and the analog having a feature similar to that of the object in an earlier frame of a current frame; an object searching unit (33) that specifies a position of the object in the current frame; and a surrounding searching unit (37) that specifies a position of the analog in the current frame when the analog exists in a surrounding region that is of a predetermined region around the object. The object predicting unit (41) predicts the position of the object in the current frame to specify the position of the object based on the position of the object and a motional state of the object in an earlier frame when the tracking state is "overlap", and the object searching unit (33) searches the object from an image of the current frame to specify the position of the object when the tracking state is not "overlap".