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Related Experiment Video

Updated: Jun 12, 2026

Detection of Architectural Distortion in Prior Mammograms via Analysis of Oriented Patterns

Detection of Architectural Distortion in Prior Mammograms via Analysis of Oriented Patterns

Published on: August 30, 2013

Rate distortion analysis for spatially scalable video coding.

Rong Zhang, Mary L Comer

IEEE Transactions on Image Processing : a Publication of the IEEE Signal Processing Society

|June 4, 2010

Summary

This study derives rate distortion lower bounds for spatially scalable video coding, evaluating subband and pyramid motion compensation. These methods offer improved rate distortion efficiency compared to independent enhancement layer encoding, especially at higher base layer quality.

Related Experiment Videos

Last Updated: Jun 12, 2026

Detection of Architectural Distortion in Prior Mammograms via Analysis of Oriented Patterns

Detection of Architectural Distortion in Prior Mammograms via Analysis of Oriented Patterns

Published on: August 30, 2013

Area of Science:

Video compression
Information theory
Digital signal processing

Background:

Spatially scalable video coding enables efficient transmission across diverse networks.
Existing methods exploit temporal and spatial redundancies, but theoretical performance limits require investigation.

Purpose of the Study:

Derive rate distortion lower bounds for subband and pyramid motion compensation in spatially scalable video coding.
Analyze enhancement layer performance based on signal characteristics and base layer quality.

Main Methods:

Applied rate distortion theory for stationary Gaussian signals with mean square error.
Derived enhancement layer rate distortion functions considering signal power spectral density and motion prediction error.
Evaluated subband and pyramid motion compensation techniques.

Main Results:

Developed theoretical bounds for spatially scalable video coding performance.
Identified key parameters influencing enhancement layer efficiency: input signal PSD, motion prediction error PDF, and base layer performance.
Demonstrated that subband and pyramid methods outperform independent enhancement layer encoding under specific conditions.

Conclusions:

Subband and pyramid motion compensation offer superior rate-distortion efficiency in spatially scalable video coding.
Performance gains are significant when the base layer is encoded at higher quality or when enhancement layer displacement estimation is less accurate.