Stacked Warp Operations for Real-Time Image Distortion Correction

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Solution Overview

Problem

Multiple warp operations in image processing can introduce image artifacts like blurring, affecting perceived image quality and increasing processing time, especially when corrections for environmental and viewer-related distortions need to be made in real-time.

Innovation Solution

Stacking multiple warp operations into a single warp operation to reduce processing time and increase efficiency, allowing for real-time compensation of viewer position and focus changes, thereby minimizing artifacts such as blurring.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If multiple warp operations are performed to correct multiple sources of distortion, then image distortion correction is improved, but image quality deteriorates due to artifacts like blurring

Engineering Contradiction:
Improvedistortion correction accuracyVSAvoidimage artifacts
Core Design Contradiction:
Manufacturing precisionVSObject-affected harmful factors

Solution Approach 1:

The patent combines multiple sequential warp operations into a single stacked warp operation that applies all distortion corrections simultaneously. This merging approach maintains comprehensive distortion correction while eliminating the repeated filtering that causes blurring artifacts when multiple separate warp operations are performed sequentially.

Inventive Principle:
Principle #5Merging (Combining)

2Manufacturing precision

If multiple warp operations are performed to account for multiple distortion sources, then distortion correction completeness is improved, but processing time increases

Engineering Contradiction:
Improvedistortion correction completenessVSAvoidprocessing time
Core Design Contradiction:
Manufacturing precisionVSLoss of time

Solution Approach 1:

The patent merges multiple warp operations into a single stacked warp operation that corrects multiple distortion sources (lens distortion, perspective distortion, etc.) in one processing pass. This eliminates the sequential execution overhead and repeated filtering operations, significantly reducing processing time while maintaining complete distortion correction.

Inventive Principle:
Principle #5Merging (Combining)

3Manufacturing precision

If multiple warp operations are performed to correct multiple distortion sources, then correction accuracy is improved, but operational efficiency deteriorates

Engineering Contradiction:
Improvecorrection accuracyVSAvoidoperational efficiency
Core Design Contradiction:
Manufacturing precisionVSProductivity

Solution Approach 1:

The patent combines multiple warp operations into a single stacked warp operation that maintains comprehensive correction accuracy for multiple distortion sources while improving operational efficiency by eliminating redundant processing steps and enabling real-time warp compensation.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The stacked warp operation structure enables a single operation to handle multiple types of distortions (lens distortion, perspective distortion, geometric transformations) simultaneously, making the system more efficient and versatile without sacrificing correction accuracy for any specific distortion type.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Data Source

PatentUS12026858B2Stacked image warp operations systems and methods
Publication Date: 2024.07.02 APPLE INC
  • US12026858B2 patent drawing
  • US12026858B2 patent drawing
  • US12026858B2 patent drawing

AI summary

An electronic device may include an electronic display to display an image based on compensated image data in a panel space. The electronic device may also include image processing circuitry to generate the compensated image data. Further, generating the compensated image data may include determining a first inverse mapping of a pixel grid from the panel space to a rendering space and determining a forward mapping of the pixel grid from the rendering space to the panel space based on the first inverse mapping. The forward mapping may include corrections for multiple different warp operations stacked in a single warp operation. Additionally, the image processing circuitry may apply the forward mapping to input image data to generate the compensated image data.