RGB Patch Processing for Saturated-Color Object Detection

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Solution Overview

Problem

Motion estimation and motion compensation methods based on brightness or luminance channels perform poorly on objects with vivid saturated color appearances, leading to edge discontinuity and detail loss.

Innovation Solution

An image processing method that processes image patches in RGB color space by determining the color channel with the maximum pixel value difference and applying a gain value based on this difference to enhance pixel values, particularly for objects with saturated colors.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Quantity of substance

If motion estimation and motion compensation are performed using only brightness or luminance channel, then memory and bandwidth constraints are satisfied, but objects with vivid saturated color appearances suffer from edge discontinuity and detail loss

Engineering Contradiction:
Improvememory and bandwidth usageVSAvoidedge continuity and detail preservation
Core Design Contradiction:
Quantity of substanceVSManufacturing precision

Solution Approach 1:

The image processing is segmented into different color channels (R, G, B) and processed separately. The method divides the RGB image into three individual color channel images, allowing each channel to be processed independently with appropriate filtering operations, thus preserving color information while maintaining memory efficiency through selective processing.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Different filtering operations are applied to different color channels based on their specific characteristics. The method determines which color channel has the maximum pixel value difference and applies adaptive filtering only to that channel, rather than uniformly processing all channels, thereby optimizing both quality and resource usage.

Inventive Principle:
Principle #3Local quality

2Measurement precision

If adaptive filtering is applied to all color channels, then object detection accuracy for saturated color objects is improved, but computational complexity and processing time increase

Engineering Contradiction:
Improveobject detection accuracyVSAvoidcomputational complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The method applies adaptive filtering selectively only to the color channel that exhibits the maximum pixel value difference, rather than processing all three color channels uniformly. This localized approach concentrates computational resources on the most critical channel, improving object detection accuracy for saturated color objects while minimizing unnecessary computational overhead from processing less relevant channels.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

Instead of applying filtering operations to all color channels (excessive action), the method performs partial processing by selecting and filtering only the single most important color channel based on pixel value variation. This partial action approach achieves sufficient detection accuracy while significantly reducing computational complexity compared to full multi-channel processing.

Inventive Principle:
Principle #16Partial or excessive action

3Reliability

If color channel information is fully utilized in motion estimation, then performance on saturated color objects is improved, but memory and bandwidth requirements increase

Engineering Contradiction:
Improvemotion estimation performanceVSAvoidmemory and bandwidth usage
Core Design Contradiction:
ReliabilityVSQuantity of substance

Solution Approach 1:

The RGB image is segmented into separate color channel images, allowing the system to access and process individual color channels as needed. This segmentation enables selective utilization of color information without requiring simultaneous storage and transmission of all color channel data, thus improving motion estimation reliability for saturated objects while controlling memory and bandwidth consumption.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The method dynamically changes the processing parameters by identifying which color channel has the maximum pixel value difference and adapting the filtering operation accordingly. This parameter adaptation allows the system to focus computational and memory resources on the most informative channel for each local region, improving reliability without proportionally increasing overall memory and bandwidth requirements.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentUS20260075156A1Image processing method and image procsesing device with object detection
Publication Date: 2026.03.12 NOVATEK MICROELECTRONICS CORP
  • US20260075156A1 patent drawing
  • US20260075156A1 patent drawing
  • US20260075156A1 patent drawing

AI summary

An image processing method and an image processing device are proposed. The method includes to receive an input image including multiple patches in RGB color space, compute a difference of pixel values among a first pixel and neighboring pixels thereof in a first patch among the patches with respect to each of RGB channels, determine a first color channel among the RGB channels having a maximum difference of the pixel values for the first patch, process the first patch according to the maximum difference of the pixel values for the first patch in the first color channel to generate a processed first patch, and generate an output image including the processed first patch.