Image Correction via Rotation and Mapping

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Solution Overview

Problem

Conventional image processing methods and devices struggle to effectively correct image deformation in images captured by cameras, which complicates the correction process due to deformation along multiple directions.

Innovation Solution

An image processing method and device that corrects a to-be-processed image into a first correction image using a first mapping relationship, rotates it by an angle, and further corrects it into a second correction image using a second mapping relationship along the same correction direction, simplifying the correction complexity by aligning deformations along a single direction.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If conventional image processing methods correct image deformation along multiple directions, then the correction completeness is improved, but the correction complexity increases

Engineering Contradiction:
Improvecorrection completenessVSAvoidcorrection complexity
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The patent divides the image correction process into multiple sequential stages, each handling deformation along a specific direction. The correction unit processes the image in steps, first correcting along one direction, then rotating and correcting along another direction, breaking down the complex multi-directional correction into manageable segments that reduce overall complexity while maintaining completeness

Inventive Principle:
Principle #1Segmentation

2Measurement precision

If the number of correction directions is increased, then the correction accuracy is improved, but the processing time is extended

Engineering Contradiction:
Improvecorrection accuracyVSAvoidprocessing time
Core Design Contradiction:
Measurement precisionVSLoss of time

Solution Approach 1:

The patent performs preliminary rotation of the image to align deformation directions with standard correction axes before applying correction algorithms. By pre-aligning the image orientation, the correction process becomes more efficient and accurate, reducing the time required for multi-directional correction while maintaining high precision

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentUS12056860B2Image processing method and image processing device using the same
Publication Date: 2024.08.06 SHENZHEN SUANHAI TECHNOLOGY CO LTD
  • US12056860B2 patent drawing
  • US12056860B2 patent drawing
  • US12056860B2 patent drawing

AI summary

The present invention discloses an image processing method. The image processing method includes the following steps: (a), a to-be-processed image is corrected as a first correction image according to a first mapping relationship along a correction direction; (b) the first correction image by an angle is rotated; and (c) the rotated first correction image is corrected as a second correction image according to a second mapping relationship along the same correction direction. In embodiment, given that the to-be-processed image is deformed along two different directions, the to-be-processed image is corrected along the same correction direction, such that correction complexity could be reduced.