Neural Network Feature Extraction for Image Encoding Efficiency

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Solution Overview

Problem

The increasing demand for high-resolution and high-quality images leads to a significant increase in the amount of transmitted and stored information, resulting in higher transmission and storage costs, necessitating the development of high-efficient image compression technologies.

Innovation Solution

An image encoding/decoding method and apparatus utilizing an artificial neural network-based feature extraction method to improve encoding/decoding efficiency by signaling feature information, allowing for efficient transmission and reconstruction of bitstreams.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If high-resolution and high-quality image data are transmitted, then image quality is improved, but transmission cost and storage cost increase

Engineering Contradiction:
Improveimage qualityVSAvoidamount of transmitted information
Core Design Contradiction:
Measurement precisionVSQuantity of substance

Solution Approach 1:

The patent extracts and transmits only the most important visual information by identifying salient regions and salient objects within the image. Instead of transmitting the entire high-resolution image, the system extracts key features and regions that contain the most visually significant information, thereby reducing the amount of data to be transmitted while preserving essential image quality.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent applies different transmission qualities to different regions of the image based on their importance. Salient regions and salient objects are transmitted with higher quality and more detailed information, while less important regions are transmitted with lower quality or compressed more aggressively. This local differentiation allows the system to optimize the balance between image quality and transmission cost.

Inventive Principle:
Principle #3Local quality

2Measurement precision

If the amount of transmitted information increases, then image quality is improved, but transmission cost increases

Engineering Contradiction:
Improveimage qualityVSAvoidtransmission cost
Core Design Contradiction:
Measurement precisionVSLoss of energy

Solution Approach 1:

The system extracts only the essential visual information from the image by identifying salient regions and objects. By transmitting only this extracted essential information rather than the complete high-resolution image, the system significantly reduces the amount of data transmission required, thereby lowering transmission costs while maintaining the essential image quality needed for effective communication.

Inventive Principle:
Principle #2Taking out (Extraction)

3Manufacturing precision

If feature information is signaled in detail, then encoding precision is improved, but device complexity increases

Engineering Contradiction:
Improveencoding precisionVSAvoidfeature information signaling complexity
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The patent segments the image into multiple regions based on their visual importance, identifying salient regions and non-salient regions separately. This segmentation allows the encoding system to apply different levels of detail and complexity to different parts of the image. By dividing the image into meaningful segments, the system can achieve high encoding precision for important regions while using simpler encoding methods for less important regions, thereby reducing overall device complexity.

Inventive Principle:
Principle #1Segmentation

Data Source

PatentUS11838519B2Image encoding/decoding method and apparatus for signaling image feature information, and method for transmitting bitstream
Publication Date: 2023.12.05 LG ELECTRONICS INC
  • US11838519B2 patent drawing
  • US11838519B2 patent drawing
  • US11838519B2 patent drawing

AI summary

An image encoding/decoding method and apparatus are provided. An image decoding method comprises obtaining, from a bitstream, encoded data of feature information generated by applying an artificial neural network-based feature extraction method to an image, reconstructing feature information by decoding the encoded data of the feature information, and generating analysis data of the image based on the feature information.