Combined Image Optical Center Alignment for Flexible Lens Correction
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Solution Overview
Problem
Existing methods for combining images after optical correction and development processing cannot change the parameters of these processes in the recorded combined image, and applying desired optical corrections like distortion and chromatic aberration is difficult.
Innovation Solution
An image processing apparatus that detects and corrects positional shifts between images, calculates an optical center position, and performs optical correction processing based on this position, allowing flexible adjustment of optical correction parameters for a combined image.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If images are combined after optical correction processing and development processing, then a combined image with processed parameters is recorded, but the parameters of optical correction processing and development processing cannot be changed in the recorded combined image
Solution Approach 1:
The patent performs preliminary actions of detecting positional shifts and calculating the optical center position before combining images. By preparing the combined image data structure in advance with embedded optical center information, the system enables subsequent optical correction processing with adjustable parameters, resolving the contradiction between achieving precise correction and maintaining parameter flexibility.
2Measurement precision
If a combined image is generated by correcting the position using RAW data, then positional shifts are corrected, but it is difficult to apply desired optical correction processing such as distortion and chromatic aberration correction
Solution Approach 1:
The patent introduces an intermediary data structure (combined image data) that bridges positional correction and optical correction processing. This intermediary contains embedded optical center position information, serving as a mediator that enables subsequent optical correction processing while maintaining the benefits of preliminary positional alignment, thus resolving the contradiction between detection precision and processing ease.
3Manufacturing precision
If the optical center position is not accurately determined, then optical correction processing cannot be properly performed, but calculating the optical center position adds processing complexity
Solution Approach 1:
The patent performs preliminary calculation of the optical center position based on detected positional shift amounts before optical correction processing. By pre-calculating and embedding the optical center position in the combined image data, the system achieves accurate optical correction without adding complexity during the actual correction phase, as the complex calculation is performed in advance when data is more accessible.
Data Source
AI summary
An image processing apparatus is configured to process a plurality of images acquired by sequentially capturing an object image. The image processing apparatus detects a positional shift amount between the plurality of images, generate a combined image by combining the plurality of images that have been aligned based on the positional shift amount, and acquire an optical center position of the combined image based on the positional shift amount. The optical center position is a reference position in performing optical correction processing for the combined image. A correcting amount in the optical correction processing changes according to a distance from the reference position.