Image Tracking Apparatus Focus Verification Mechanism
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Solution Overview
Problem
Autofocusing systems in cameras often fail to maintain focus on the target object, especially with lenses of long focal length, leading to blurred images and incorrect tracking due to slight differences between set and actual distances, resulting in poor tracking performance.
Innovation Solution
An image apparatus and method that includes a detecting unit to assess focus information, a determining unit to check if it's within a predetermined range, an acquiring unit to capture first image information, and a control unit to evaluate and adjust the focus based on this information, ensuring the template image is sharp and accurate for tracking.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If tracking is started without ensuring proper focus, then tracking can begin immediately, but the template image becomes blurred causing target loss or false recognition
Solution Approach 1:
The system performs focus detection and verification before starting the tracking process. The determining unit checks whether focus information is within a predetermined range before the acquiring unit captures the template image, ensuring the target is properly focused before tracking begins. This preliminary focus verification prevents blurred template images while maintaining efficient tracking startup.
2Manufacturing precision
If focus detection is performed repeatedly before tracking, then template image quality improves, but system response time increases
Solution Approach 1:
The system changes the focus verification parameter from continuous focus adjustment to a threshold-based determination. The determining unit evaluates whether focus information falls within a predetermined range, allowing rapid binary decision-making instead of iterative focus optimization. This parameter change enables quick focus verification while ensuring adequate template image quality.
3Ease of operation
If focus is not verified before tracking with long focal length lenses, then system operation is simpler, but shooting distance errors cause blurred images
Solution Approach 1:
The system performs self-verification of focus status before proceeding with tracking. The detecting unit automatically detects focus information and the determining unit automatically determines whether it meets the predetermined range criterion. This self-service mechanism eliminates the need for manual focus verification while ensuring accurate focus, particularly important for long focal length lenses where distance errors have significant impact.
Data Source
AI summary
An image apparatus includes a screen, a detecting unit, a determining unit, an acquiring unit and a control unit. The screen is configured to display an image formed by an optical system and at least one detection position superimposed onto the image. The detecting unit is configured to detect information regarding focus of the optical system at the detection position. The determining unit is connected to the detecting unit and configured to determine whether the information regarding the focus is within a predetermined range. The acquiring unit is connected to the determining unit and configured to acquire first image information at the detection position when the determining unit determines that the information regarding the focus is within the predetermined range. The control unit is connected to the acquiring unit and configured to evaluate arbitrary second image information in the screen using the first image information.