Title :
Optimization of Matching Pursuit Encoder Based on Analytical Approximation of Matching Pursuit Distortion
Author :
Shoa, Alireza ; Shirani, Shahram
Author_Institution :
Dept. of Electr. & Comput. Eng., McMaster Univ., Hamilton, Ont.
Abstract :
Distortion of matching pursuit is calculated in terms of matching pursuit encoder parameters for uniformly distributed signals and dictionaries. Then, the MP encoder is optimized using the analytically derived approximation for MP distortion. Our simulation results show that this optimized MP encoder exhibits optimum performance for nonuniform signal and dictionary distributions as well
Keywords :
approximation theory; distortion; image coding; image matching; analytical approximation; distortion; matching pursuit encoder optimization; uniform distributed signal; Dictionaries; Distortion; Equations; Euclidean distance; Greedy algorithms; Matching pursuit algorithms; Probability distribution; Signal resolution; Upper bound;
Conference_Titel :
Multimedia and Expo, 2006 IEEE International Conference on
Conference_Location :
Toronto, Ont.
Print_ISBN :
1-4244-0366-7
Electronic_ISBN :
1-4244-0367-7
DOI :
10.1109/ICME.2006.262407
