Title :
Frame based representation and compression of still images
Author :
Engan, Kjersti ; Husoy, John Håkon ; Aase, Sven Ole
Author_Institution :
Dept. of Electr. & Comput. Eng., Stavanger Univ. Coll., Norway
Abstract :
We use a frame-based representation approach for compression of still images. The frames are optimized for use on images by using a training set of six natural images in the frame design algorithm we have called method of optimal directions (MOD). The optimized frames are investigated, and a compression experiment using a frame is done and compared to JPEG. A set of frames optimized using MOD are used in a multi frame compression (MFC) scheme. A test image is compressed using the MFC scheme with the optimized frames. For low bit rates the results show improved performance compared to JPEG
Keywords :
data compression; image coding; image representation; optimisation; frame based representation; frame design algorithm; frame optimization; method of optimal directions; natural images; performance; still image compression; training set; Algorithm design and analysis; Design optimization; Discrete cosine transforms; Educational institutions; Equations; Image coding; Matching pursuit algorithms; Pixel; Transform coding; Vectors;
Conference_Titel :
Image Processing, 2001. Proceedings. 2001 International Conference on
Conference_Location :
Thessaloniki
Print_ISBN :
0-7803-6725-1
DOI :
10.1109/ICIP.2001.958519
