Title :
Application of the DCT and Arithmetic Coding to Medical Image Compression
Author :
Chikouche, Djamel ; Benzid, Ridha ; Bentoumi, Miloud
Author_Institution :
Electron. Dept., Univ. of M´´sila, M´´sila
Abstract :
This paper presents an application of the discrete cosine transform compression technique on medical images of the IRM type. The arithmetic coding method is used to encode the coefficients. The tests of this lossy compression/ decompression technique are performed on two IRM images representing the brain, in axial and sagital views, of a patient suffering from a cerebral hemorhage. The obtained results on these images show that the DCT technique permits to considerably improve the compression rate while mainting a good image quality when threshold varies in the interval: 0 les TH les 20 for bloc sizes: [16times16] and [32times32]. However, a severe degradation of the quality of the reconstructed medical image is observed when the threshold is greater than 30.
Keywords :
arithmetic codes; brain; data compression; diagnostic radiography; discrete cosine transforms; image coding; medical image processing; transform coding; DCT compression technique; arithmetic coding; brain IRM images; cerebral hemorhage; discrete cosine transform; image decompression technique; medical image compression; radiology services; Arithmetic; Biomedical imaging; Discrete cosine transforms; Image coding; Image quality; Image reconstruction; Matrix decomposition; Medical diagnostic imaging; Performance evaluation; Testing; DCT compression; IRM type; Medical Images; arithmetic coding; performances;
Conference_Titel :
Information and Communication Technologies: From Theory to Applications, 2008. ICTTA 2008. 3rd International Conference on
Conference_Location :
Damascus
Print_ISBN :
978-1-4244-1751-3
Electronic_ISBN :
978-1-4244-1752-0
DOI :
10.1109/ICTTA.2008.4530107
