Imaging Layout Calculation for Dead Angles and Visual Recognition
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Solution Overview
Problem
Existing imaging systems require actual imaging and analysis to determine the imaged space, which is time-consuming and dependent on camera placement and number, and do not efficiently calculate dead angles or visual recognition regions.
Innovation Solution
An imaging system that calculates dead angle and visual recognition regions using captured images to determine the camera's viewing angle, position, and posture, integrating this information to generate a superimposed image highlighting these regions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If actual imaging is performed to determine the imaged space, then measurement precision is improved, but loss of time increases
Solution Approach 1:
The patent calculates the imaged space, dead angle region, and visual recognition region before actual imaging occurs. By using the camera's viewing angle information, position information, and posture information to compute these regions in advance, the system eliminates the need for time-consuming post-imaging analysis while maintaining accurate determination of the imaged space.
2Area of stationary object
If multiple cameras are deployed to cover more areas, then area of stationary object is improved, but loss of time increases
Solution Approach 1:
The patent enables calculation of dead angle regions and visual recognition regions for multiple cameras before imaging begins. By pre-computing these regions based on each camera's viewing angle, position, and posture, the system can efficiently determine the overall monitored space coverage without requiring extensive actual imaging or post-processing time.
3Measurement precision
If viewing angle information is accurately acquired, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The patent uses captured images to acquire viewing angle information, position information, and posture information as copies or representations of the camera's actual state. By processing these derived information rather than directly measuring complex optical parameters, the system achieves accurate viewing angle determination while simplifying the overall processing approach.
Data Source
AI summary
An imaging system according to an embodiment includes an imaging unit configured to image a subject, a viewing angle acquiring unit configured to acquire viewing angle information of the subject using an image captured by the imaging unit, a subject information acquiring unit configured to acquire, using the image, position information and posture information of the subject and position information of an object present in a visual field region of the subject, and a region calculating unit configured to calculate, based on the viewing angle information, the position information, and the posture information of the subject and the position information of the object present in the visual field region, at least one of a dead angle region that cannot be grasped by the subject or a visual recognition region that is a region obtained by excluding the dead angle region from the visual field region.