Title :
Intraframe coding with DCT-VQ for image sequence compression
Author :
Türker, Mustafii Ali ; Severcan, Mete
Author_Institution :
Ankara Electron. Res. & Dev. Inst.., Turkey
Abstract :
A VQ codebook generation technique is introduced for intraframe image sequence compression. It involves some stochastic methods applied to the classical Kohonen learning algorithm, so that optimal codebooks can be generated without being trapped in poor local minima of MSE distortion function. Codebook generation time is much faster than other stochastic methods. Using the technique in a vector quantizer, following a discrete cosine transform, high PSNR performance is obtained at 0.25 bpp encoded frames
Keywords :
discrete cosine transforms; image coding; image sequences; self-organising feature maps; stochastic processes; transform coding; vector quantisation; DCT-VQ; MSE distortion function; classical Kohonen learning algorithm; codebook generation technique; codebook generation time; discrete cosine transform; high PSNR performance; image sequence compression; intraframe coding; optimal codebooks; poor local minima; stochastic methods; vector quantizer; Councils; Data compression; Discrete cosine transforms; Electronic mail; Image coding; Image sequences; Karhunen-Loeve transforms; Research and development; Stochastic processes; Transform coding;
Conference_Titel :
Electrotechnical Conference, 1994. Proceedings., 7th Mediterranean
Conference_Location :
Antalya
Print_ISBN :
0-7803-1772-6
DOI :
10.1109/MELCON.1994.380924
