Neural Network Feature Map Encoding via Super-Resolution

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Solution Overview

Problem

The challenge lies in efficiently encoding feature maps extracted from artificial neural networks while minimizing data amount and maintaining task performance, particularly when the feature map resolution needs to be reduced without degrading small object detection rates.

Innovation Solution

The proposed solution involves converting the resolution of feature maps using a super-resolution technique, applying compression and reconstruction, and learning from the results to improve encoding performance by aligning channel sizes with encoding block sizes and using metadata for feature map reconstruction modes.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Quantity of substance

If the resolution of the feature map is decreased by selecting an encoding feature map having lower resolution than the original feature map, then the data amount of the feature map is reduced, but the detection rate of small objects may decrease

Engineering Contradiction:
Improvedata amount of feature mapVSAvoiddetection rate of small objects
Core Design Contradiction:
Quantity of substanceVSMeasurement precision

Solution Approach 1:

The patent applies super-resolution processing to the encoding feature map before compression encoding. This preliminary enhancement of resolution allows the system to work with lower-resolution feature maps (reducing data amount) while still achieving high detection accuracy for small objects after the super-resolution restoration.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent changes the resolution parameter of the encoding feature map to be lower than the original feature map resolution. By combining this parameter change with super-resolution processing, the system reduces the data amount requiring compression while maintaining or improving the detection performance through resolution restoration.

Inventive Principle:
Principle #35Parameter changes

2Productivity

If the feature map is compressed to reduce data amount, then the transmission efficiency is improved, but compression artifacts may degrade the quality of the feature map

Engineering Contradiction:
Improvetransmission efficiencyVSAvoidquality of feature map
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The patent applies super-resolution processing to enhance the encoding feature map before compression encoding. This preliminary enhancement creates a more robust representation that better withstands the subsequent compression process, reducing the degradation of feature map quality while maintaining transmission efficiency.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent uses the original high-resolution feature map as a reference during the super-resolution processing of the encoding feature map. This feedback mechanism ensures that the compressed feature map maintains fidelity to the original features, preserving quality while enabling efficient compression.

Inventive Principle:
Principle #23Feedback

Data Source

PatentUS20230281960A1Method, apparatus and recording medium for encoding/decoding image using feature map of artificial neural network
Publication Date: 2023.09.07 ELECTRONICS & TELECOMM RES INST
  • US20230281960A1 patent drawing
  • US20230281960A1 patent drawing
  • US20230281960A1 patent drawing

AI summary

Disclosed herein is an encoding method. The encoding method includes extracting a feature map from an input image, determining an encoding feature map based on the extracted feature map, generating a converted feature map by performing conversion on the encoding feature map, and performing encoding on the converted feature map.