1. Rattapoom vudhichamnong University of Wisconsin
OPTIMIZING WAVELET BASED IMAGE COMPRESSION FOR TMS320C6X DIGITAL SIGNAL PROCESSOR
ECE 734: VLSI array structures for Digital Signal Processing
Prof. Yu Hen Hu
Spring 2002
Rattapoom vudhichamnong
Suman Mamidi
University of Wisconsin

2. MOTIVATION GET AQUAINTED WITH WAVELETS
LEARN ABOUT DIGITAL SIGNAL PROCESSORS
LEARN THE OPTIMIZATION METHODS USED FOR IMPLEMENTING SIGNAL PROCESSING ALGORITHMS ON DSP’s

3. OPTIMIZATION PROCESS – 1 ANALYSIS
UNDERSTANDING THE NEEDS OF THE ALGORITHM
UNDERSTANDING THE DEPENDENCIES INHERENT TO THE ALGORITHM – THE DG

4. OPTIMIZATION PROCESS – 2 THE PRACTICES
COMPILER INTRINSICS – USING THE DSP ISA INDIRECTLY
SOFTWARE ILP
LOOP TRANSFORMATIONS
LOOP UNROLLING
LOOP INTERCHANGE
UNI-MODULAR TRANSFORMATIONS ETC.

5. SOUNDS EASY??? INTERFACING THE DSP TO THE PC
FITTING THE ALGORITHM TO THE DSP
FINDING OUT WHAT WORKS BEST FOR THE ALGORITHM

6. OPTIMIZE THE CORE OF THE ALGORITHM FOR TMS320C6x AS MUCH AS POSSIBLE
GOALS
JUST ONE…..
OPTIMIZE THE CORE OF THE ALGORITHM FOR TMS320C6x AS MUCH AS POSSIBLE

7. RESULT PREVIEW
Before Optimizing
After Optimizing