Title :
A comparison of first generation image coding techniques applied to the same magnetic resonance image
Author :
Reid, M.M. ; Millar, R.J. ; Black, N D
Author_Institution :
Dept. of Comput. Sci., Ulster Univ., Jordanstown, UK
Abstract :
Each of the techniques are applied to the same magnetic resonance image and the results obtained are in terms of compression ratio and RMS error between the original and decompressed images. Techniques investigated cover both lossless and lossy coding and include runlength encoding, linearised quadtree encoding, LZW, Huffman encoding and DCT coding. In terms of compression ratio the best method was DCT, however the RMS error produced by this method can be large
Keywords :
Huffman codes; biomedical NMR; data compression; discrete cosine transforms; error analysis; image coding; linear codes; medical image processing; quadtrees; runlength codes; DCT coding; Huffman encoding; LZW; Lemple-Ziv-Welch coding; RMS error; compression ratio; decompressed images; first generation image coding techniques; linearised quadtree encoding; lossless coding; lossy coding; magnetic resonance image; original images; runlength encoding; Dictionaries; Discrete cosine transforms; Encoding; Frequency; Image coding; Image generation; Image resolution; Magnetic resonance; Pixel; Probability;
Conference_Titel :
Engineering in Medicine and Biology Society, 1994. Engineering Advances: New Opportunities for Biomedical Engineers. Proceedings of the 16th Annual International Conference of the IEEE
Conference_Location :
Baltimore, MD
Print_ISBN :
0-7803-2050-6
DOI :
10.1109/IEMBS.1994.411890
