Image Capturing Apparatus Guide for Point Image Restoration Calibration
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Solution Overview
Problem
Existing image capturing technologies face challenges in properly imaging and acquiring calibration images for point image restoration processes due to lack of assistance in imaging chart adjustment, extended depth of field optical system capture, and image data acquisition, leading to potential image deterioration and improper restoration.
Innovation Solution
An image capturing apparatus with an image capturing unit, display unit showing guides along sagittal or tangential directions, and a parameter calculation unit that assists in acquiring calibration images for precise parameter adjustment, including bracketing imaging modes and interchangeable lenses to extend depth of field, facilitating accurate point image restoration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a chart for adjustment is imaged for point image restoration calibration, then the restoration accuracy can be improved, but the imaging process becomes complex and difficult to perform without proper guidance
Solution Approach 1:
A guide display is introduced as an intermediary between the user and the imaging process. The guide display provides visual feedback showing the current framing of the calibration chart and guidance for proper positioning, making the complex imaging process easier to perform while maintaining high restoration accuracy
Solution Approach 2:
The system implements feedback by displaying the captured image on the display unit during the calibration imaging process. This allows the user to see whether the calibration chart is properly framed and positioned, enabling real-time adjustments to achieve accurate calibration images
2Measurement precision
If the depth of field is extended to capture calibration images at different focus positions, then the calibration accuracy is improved, but the optical system complexity increases
Solution Approach 1:
The system performs preliminary actions by capturing multiple calibration images at different focus positions (in-focus and out-of-focus images) before performing the restoration process. This preliminary multi-position imaging enables accurate calculation of the point spread function without requiring complex real-time optical adjustments
Solution Approach 2:
The system dynamically captures images at different focus positions to obtain calibration data. By using bracketing imaging modes that automatically capture images at multiple focus positions, the system adapts to different calibration requirements without manual optical system adjustments
3Measurement precision
If multiple calibration images are acquired using bracketing imaging modes, then the parameter calculation accuracy is improved, but the imaging time increases
Solution Approach 1:
The system uses periodic bracketing imaging modes that automatically capture images at multiple focus positions in sequence. This periodic capture approach ensures accurate parameter calculation by obtaining both in-focus and out-of-focus calibration images systematically, while the automation reduces manual intervention time
Data Source
AI summary
An image capturing apparatus according to an aspect of the present invention includes an image capturing unit, a display unit that displays an imaged picture imaged by the image capturing unit and a guide linearly shaped along a sagittal direction or a tangential direction in the imaged picture, the guide assisting imaging of a calibration image used for calibration in a point image restoration process, and a parameter calculation unit that calculates a parameter for the point image restoration process on the basis of the calibration image imaged by the image capturing unit with assistance from the guide.