Optical Distortion Correction With Jag Detection and Spatial Smoothing
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Solution Overview
Problem
Conventional optical distortion correction schemes suffer from the jaggy phenomenon, where uneven outlines occur in corrected images due to imperfect lens performance.
Innovation Solution
An optical distortion correction system comprising a correction device, weighting device, jag detector, filter, and smoothing device, which generates correction values, detects jags, applies spatial filters, and smooths data using weights to eliminate jaggy outlines.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional distortion correction schemes are applied, then optical distortion is corrected, but jaggy outlines appear in the corrected image
Solution Approach 1:
The patent applies parameter changes by implementing a multi-stage processing approach that transforms the correction values through weighting, jag detection, filtering, and smoothing operations. Each stage modifies parameters of the correction data to eliminate jags while preserving distortion correction accuracy, ultimately producing smooth outlines in the corrected image
Solution Approach 2:
The patent introduces intermediary processing steps between distortion correction and final image output. These intermediaries include weighting devices that assign importance to different correction values, jag detectors that identify problematic areas, and smoothing devices that refine the correction data, all working together to prevent jaggy outlines
Data Source
AI summary
An optical distortion correction system includes a correction device that generates correction values according to data from a lens; a weighting device that generates weights for corresponding data according to the correction values; a jag detector that detects a jag in an outline according to the data; a filter that provides a spatial filter when a jag is detected; and a smoothing device that smooths the data by the weights and the spatial filter, thereby resulting in smoothed data.