Zoom Imaging for Eye and Gesture Detection Switching
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Solution Overview
Problem
Existing imaging systems face a cost increase when attempting to detect both line-of-sight direction and gesture using a single apparatus, as they require high resolution for eye detection and a larger field angle for hand detection, which is typically expensive and requires high processing capability.
Innovation Solution
The system employs a single imaging apparatus that switches between a high-resolution telephoto mode for line-of-sight direction detection and a wide-angle mode for gesture detection, using a zoom function to adjust the imaging area based on user input, allowing for efficient detection without the need for high processing power or increased cost.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single imaging apparatus is used to detect both line-of-sight direction and gesture, then device complexity is reduced, but manufacturing precision and measurement precision requirements increase leading to cost increase
Solution Approach 1:
The imaging apparatus dynamically switches between telephoto mode (for line-of-sight detection requiring high resolution) and wide-angle mode (for gesture detection requiring large field angle) based on detection needs, making the field angle adjustable rather than fixed
Solution Approach 2:
The zoom function changes the field angle parameter of the imaging apparatus between two distinct states (telephoto and wide-angle), allowing the same device to meet different precision and coverage requirements for different detection tasks
2Measurement precision
If high resolution is maintained for line-of-sight detection, then measurement precision is improved, but processing load increases
Solution Approach 1:
The system uses telephoto mode with high resolution only when line-of-sight detection is required, rather than maintaining high resolution continuously for all detection tasks, thus reducing overall processing load while preserving necessary precision when needed
Data Source
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Figure 2A~2B
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AI summary
An imaging system (CM, 100) is provided with: an imaging device (CM) configured to selectively image a first imaging area and a second imaging area, which is larger than the first imaging area, the first imaging area being used to detect eyes of a user (1), the second imaging area being used to detect a body of the user; a detecting device (110, 120, 160) configured to detect trigger operation of the user; and a selecting device (13) configured to select the first imaging area or the second imaging area on the basis of a detection result of the trigger operation.