Adaptive Image Compression for Wireless Multimedia Communication

Table of Contents

Adaptive Image Compression for Wireless Multimedia Communication

Evolving Wireless Multimedia Data Services

Challenges to Wireless Multimedia Communication

Dynamic Conditions in Mobile Wireless Communications

Dynamic Adaptability through Run-time Reconfiguration of Source Coder

JPEG Image Compression

Effects of Varying Quantization Level

Virtual Block Size

Effects of Changing Virtual Block Size

Run-time Reconfiguration Algorithms

Example: Run-time Selection of JPEG Image Compression Parameters

Step 1: Pre-compute Image Qualityand Compression Ratio

Step 2: Computation of Possible Parameters Table

Step 3: On-line Computation of Image Compression Parameters

Results of Run-time Reconfiguration

High-performance System Architecture to Enable Run-time Reconfiguration

Cost of Run-time Reconfiguration Algorithm

Conclusion and Future Work

Email: cntaylor@ece.ucsd.edu

Home Page: http://esdat.ucsd.edu