Skip to main content

Utilizing Repeated Adjacencies of Vector Quantization Indices in Image Compression

مؤلف البحث
M.F. Abdel-Latif, T.K. Abdel-Hamid, M.M. Doss and H. Selim
المشارك في البحث
سنة البحث
2004
مجلة البحث
Proc. 4th IEEE International Symposium on Signal Processing and Information Technology (ISSPIT 2004), Rome, Italy
تصنيف البحث
3
صفحات البحث
pp. 287-290
ملخص البحث

Image compression using vector quantization (VQ) results in highly correlated indices. The correlation between these indices is used to reduce the bits needed to represent them. This is done by many index compression algorithms such as the Hu and Chang, search order coding (SOC), and switching tree coding (STC). A new algorithm for VQ index compression is introduced and it utilizes the local statistics of each image and the repeating pattern of its adjacent indices. The proposed algorithm improves the index compression performance of the basic VQ, with a relatively slight increase of complexity.