Imaging Apparatus Feature Reuse for Tracking Resumption
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Solution Overview
Problem
Conventional imaging apparatuses require users to accurately specify the main subject every time the tracking process is resumed, leading to user burden and potential detection errors when the main subject is obscured or behind obstacles, as they continue to detect similar subjects or backgrounds instead.
Innovation Solution
An imaging apparatus with a feature acquiring section, a feature holding section, and a controlling section that validates or invalidates the feature acquisition operation, allowing for the reuse of previously acquired features when certain conditions are met, such as during recording or when the apparatus is moving, to alleviate user burden and prevent detection errors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If the imaging apparatus continues to detect the main subject after the sight is lost, then the tracking process can resume quickly when the main subject reappears, but detection errors occur when similar subjects or backgrounds are mistakenly identified as the main subject
Solution Approach 1:
The system performs preliminary searching actions in the vicinity of the last known position when the main subject is lost, rather than immediately stopping or requiring user input. This preliminary action allows the system to quickly detect the main subject if it reappears nearby, while still maintaining the ability to abort if detection errors occur.
Solution Approach 2:
The system continuously monitors detection results during the tracking process and provides feedback to determine whether to continue or abort the search. When the main subject is detected again, the system evaluates whether the detection is reliable before resuming full tracking, thus preventing false detections while enabling quick resumption.
2Measurement precision
If the imaging apparatus requires users to specify the main subject every time tracking is resumed, then detection accuracy is maintained, but user burden increases significantly
Solution Approach 1:
The system performs automatic subject detection and tracking resumption without requiring user intervention. When the main subject is lost, the system autonomously searches for it in the vicinity of the last known position and automatically resumes tracking when detected, eliminating the need for users to manually specify the subject again.
Solution Approach 2:
The system pre-positions the search area around the last known subject location before the user needs to resume tracking. This preliminary preparation of the search space allows for rapid automatic detection and resumption, maintaining high accuracy without requiring user input.
3Adaptability or versatility
If the imaging apparatus searches the entire screen when the main subject is lost, then the main subject can be found even if it has moved significantly, but the time and computational resources required increase
Solution Approach 1:
The system concentrates search efforts in the local vicinity of the last known subject position rather than uniformly searching the entire screen. This localized search approach maintains adaptability for subjects that move moderately while significantly reducing search time and computational resources compared to a full-screen search.
Solution Approach 2:
The system performs a partial search in the vicinity of the last known position rather than an exhaustive full-screen search. This partial action is sufficient for most practical cases where subjects don't move extremely far, achieving a balance between adaptability and efficiency.
Data Source
AI summary
An imaging apparatus has an imaging section that creates video data from an optical image of a subject field; a feature acquiring section that acquires features of a main subject in the subject field; a feature holding section that holds the acquired features; a tracking processing section that performs a predetermined process for tracking the main subject using the created video data and the held features; and a controlling section that validates or invalidates an operation of the feature acquiring section, and the controlling section invalidates the operation of the feature acquiring section when the imaging apparatus satisfies a predetermined condition.