Title :
Lossless compression of DSA image sequence based on D2PCM coder
Author :
Zhen, Ji ; Xuanqin, Mou ; Yifeng, Jiang ; Yuanlong, Cai
Author_Institution :
Center of Image Process., Xi´´an Jiaotong Univ., China
Abstract :
A novel D2PCM compression technique has been developed in this paper for more effective lossless compression of DSA (digital subtraction angiography) image sequences, in which the correlation between subtraction images remains meaningful. By applying the lossless DPCM coder to the subtraction image, it constitutes a two-order differential coding scheme with the time variable. This proposed method is able to sufficiently reduce the temporal-space correlation. Higher compression ratio is achieved than previous techniques. The computational time and space also prove practicable and robust in real-life applications
Keywords :
angiocardiography; correlation methods; data compression; differential pulse code modulation; image coding; image sequences; medical image processing; D2PCM coder; DSA image sequence; compression ratio; computational time; digital subtraction angiography; image correlation; lossless compression; two-order differential coding; Angiography; Biomedical imaging; Image coding; Image reconstruction; Image resolution; Image sequences; Image storage; Medical diagnostic imaging; Phase change materials; Pulse modulation;
Conference_Titel :
Signal Processing Proceedings, 1998. ICSP '98. 1998 Fourth International Conference on
Conference_Location :
Beijing
Print_ISBN :
0-7803-4325-5
DOI :
10.1109/ICOSP.1998.770337
