Monocular Image Capture Conditions for Accurate Distance Measurement
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Solution Overview
Problem
Measuring distance to a subject using a single monocular camera is convenient but requires adjustment of capture conditions to improve accuracy, which existing methods do not adequately address.
Innovation Solution
An image processing device that includes a processor to acquire images, configuration information, and create optimal capture conditions for distance measurement by utilizing a statistical model that learns bokeh patterns caused by optical aberration, allowing for improved distance estimation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If distance measurement is performed using a single monocular camera, then convenience is improved, but measurement accuracy deteriorates
Solution Approach 1:
The patent changes the parameter of capture conditions (focal length, aperture) to optimize distance measurement accuracy. By adjusting these parameters based on the statistical model's bokeh pattern analysis, the system achieves accurate distance measurement using a single monocular camera without requiring multiple cameras or complex hardware configurations.
Solution Approach 2:
The patent replaces traditional mechanical distance measurement systems (which would require multiple cameras or active sensors) with an optical-based statistical model that analyzes bokeh patterns. This substitution allows the system to achieve accurate distance measurement using only a single monocular camera, improving convenience while maintaining precision.
2Measurement precision
If capture conditions are adjusted to improve distance measurement accuracy, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The system performs self-service by automatically analyzing the captured image's bokeh patterns through the statistical model and autonomously determining optimal capture conditions. This eliminates the need for manual adjustment or complex external control systems, achieving accurate distance measurement while keeping the overall system simple and user-friendly.
Solution Approach 2:
The patent implements a feedback mechanism where the statistical model analyzes the relationship between capture conditions and bokeh patterns, then uses this information to automatically adjust or recommend optimal capture settings. This closed-loop feedback system simplifies the complexity by automating the adjustment process while maintaining high measurement accuracy.
Data Source
AI summary
According to one embodiment, an image processing device is used when measuring a capture distance from a capture device to a subject in an image using an image captured by the capture device and affected by aberration of an optical system of the capture device. The image processing device includes a processor. The processor is configured to acquire an image captured by the capture device, acquire configuration information relating to an optical system of the capture device, acquire a capture distance with respect to the image based on the acquired image, create a first capture condition of an image suitable for measuring a distance to the subject based on the acquired configuration information and the acquired capture distance, and output the created first capture condition.