Multi-Camera Subject Tracking via Motion Feedback
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Solution Overview
Problem
Existing digital photographing apparatuses struggle to automatically switch between multiple cameras to accurately track a main subject and capture high-quality images without user intervention, especially when the subject moves.
Innovation Solution
A digital photographing apparatus equipped with a first camera for capturing wide-angle images and a second camera for telephoto images, along with a processor that detects motion information, determines the appropriate image based on the subject's speed and direction, and automatically switches between the two camera views to maintain optimal focus and composition.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If multiple cameras with different focal lengths are used to capture images at various distances, then image quality at various distances is improved, but automatic switching between cameras without user manipulation is difficult to achieve
Solution Approach 1:
The system uses motion information detection as feedback to automatically determine when to switch between wide-angle and telephoto cameras. The processor continuously monitors motion information and uses this feedback to trigger camera switching, eliminating the need for user intervention while maintaining optimal image quality.
Solution Approach 2:
The photographing apparatus performs self-service by automatically detecting motion information and selecting the appropriate camera without user input. The system serves itself by autonomously managing the camera switching based on detected motion parameters, making the automation process seamless.
2Measurement precision
If a processor detects motion information and determines appropriate images based on subject speed and direction, then accurate tracking of main subject is improved, but device complexity increases
Solution Approach 1:
The processor's functionality is segmented into distinct modules: motion information detection, speed calculation, direction determination, and camera selection. This segmentation allows each function to be optimized independently while working together to achieve accurate subject tracking.
Solution Approach 2:
The system performs preliminary detection of motion information and calculates speed and direction before making the camera switching decision. This preliminary action ensures that the main subject is accurately tracked and the appropriate camera is selected in advance, improving tracking accuracy.
Data Source
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AI summary
A digital photographing apparatus includes: a first camera configured to acquire a wide-angle image including a main subject, a second camera configured to acquire a telephoto image zooming in on the main subject, and a processor configured to detect motion information of the main subject based on the wide-angle image and the telephoto image and to determine one of the wide-angle image and the telephoto image as a main image.