Inter-frame Compression for Medical Imaging Bandwidth Reduction

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Solution Overview

Problem

Conventional image processing techniques are insufficient for real-time interactions in medical imaging systems, particularly due to resource limitations in client terminals, which struggle to handle and process high-quality 3D volumetric data rendered by servers.

Innovation Solution

The development of efficient image compression methods and systems that utilize inter-frame redundancy to compress rendered images, allowing for fast transmission from servers to client terminals, even with thin client machines, by encoding residual images and applying techniques like JPEG-LS, JPEG2000, or WMP, and using prediction algorithms for windowing and leveling operations.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If conventional image processing techniques are used, then client terminals can process images, but real-time interaction is insufficient due to resource limitations

Engineering Contradiction:
Improvereal-time interaction speedVSAvoidclient terminal processing capability
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent segments the image processing workload by dividing images into multiple frames and identifying only changed regions between frames. The server performs the complex task of detecting changed regions and generating difference images, while client terminals only need to receive and display these differences. This segmentation allows real-time interaction despite limited client resources.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent extracts only the essential information needed for display by identifying changed regions between consecutive frames and transmitting only these differences to client terminals. Instead of sending complete high-quality images, the system extracts and transmits minimal data (difference images or region indicators), enabling real-time interaction while reducing client processing requirements.

Inventive Principle:
Principle #2Taking out (Extraction)

2Measurement precision

If high-quality 3D volumetric data is transmitted, then diagnostic accuracy is improved, but bandwidth requirements increase

Engineering Contradiction:
Improveimage qualityVSAvoiddata transmission volume
Core Design Contradiction:
Measurement precisionVSQuantity of substance

Solution Approach 1:

The patent extracts only the changed portions between consecutive frames and transmits these difference images instead of complete high-quality images. By identifying regions that have changed and transmitting only those portions at full resolution, the system maintains diagnostic accuracy for changed areas while dramatically reducing overall data transmission volume.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent applies partial action by transmitting full-quality data only for changed regions while using lower-quality or differential data for unchanged regions. This selective approach ensures high diagnostic accuracy where needed (changed areas) while minimizing total data transmission volume.

Inventive Principle:
Principle #16Partial or excessive action

Data Source

PatentUS8170354B2Systems and methods of inter-frame compression
Publication Date: 2012.05.01 SIEMENS HEALTHINEERS AG
  • US8170354B2 patent drawing
  • US8170354B2 patent drawing
  • US8170354B2 patent drawing

AI summary

A system and method for rendering images, and performing operations such as windowing and leveling, when the parameters of a client appliance are known and rendering images when the parameters of a client appliance are unknown. The invention also considers the rendering from the client appliance perspective and the server appliance perspective.