Electronic Camera Subject Tracking Overlay
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Solution Overview
Problem
Users face difficulties in discriminating and tracking small subjects within the camera's angle of view, especially when multiple subjects are present, leading to unintended changes in angle and composition during video recording due to frequent zoom operations.
Innovation Solution
An electronic camera system that includes an image-capturing unit, a selecting unit for focus detection, a displaying unit for displaying the tracking object checking image, and a controlling unit to overlay this image with the composition checking image, allowing for improved visibility and accuracy of the tracking object without altering the overall composition.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the user performs zoom operation to enlarge the subject, then the subject detail becomes visible, but the angle of view becomes narrow and the whole composition cannot be viewed
Solution Approach 1:
The display screen is segmented to show multiple images simultaneously: the main full-angle view and a separate enlarged tracking object checking image. This allows the user to view both the overall composition and subject details at the same time without losing either the wide angle or the magnified detail.
Solution Approach 2:
The solution adds a spatial dimension to the display by showing the enlarged tracking object checking image in a different location on the screen rather than replacing the full view. This dimensional separation allows simultaneous viewing of both the complete scene and the magnified subject.
2Measurement precision
If the user repeatedly performs zoom operations to check the subject, then the subject detail can be confirmed, but the angle of view and composition changes are recorded during moving image photographing
Solution Approach 1:
The system performs preliminary magnification and displays the tracking object checking image before the user actually performs zoom operations. This allows the user to confirm subject details in advance without executing zoom commands that would alter the recorded angle of view and composition during moving image photographing.
Solution Approach 2:
The tracking object checking image serves as an intermediary that provides subject detail information without requiring actual zoom operations. By displaying this intermediate magnified view separately, the system allows subject verification while maintaining the original composition for recording.
3Area of stationary object
If the subject is small relative to the whole angle of view, then the overall scene can be captured, but it becomes difficult for the user to discriminate the subject
Solution Approach 1:
The display is segmented to show both the full-angle view (maintaining field of view coverage) and a separately magnified tracking object checking image (improving subject discrimination). This segmentation allows the user to see the subject's location in the overall scene while simultaneously viewing an enlarged version for easy identification.
Solution Approach 2:
The system creates a copy of the tracking object area and displays it in an enlarged format. This copied and magnified image makes the small subject easily distinguishable while the original full-angle view remains unchanged to maintain proper composition context.
Data Source
AI summary
It is enabled to check a detail of a subject being a tracking object more rapidly and easily by including an image-capturing unit capturing a subject image and generating an image, a selecting unit continuously selecting a focus detection object area at the time of image-capturing by the image-capturing unit based on the image generated by the image-capturing unit, a displaying unit capable of displaying the image generated by the image-capturing unit, a generating unit cutting out a part corresponding to the focus detection object area from the image generated by the image-capturing unit and generating a tracking object checking image, and a controlling unit displaying on the displaying unit by overlapping a through image for a composition checking based on the image generated by the image-capturing unit and the tracking object checking image at the time of image-capturing by the image-capturing unit.