Title :
A cost effective solution for digital cardiac angiogram archiving using lossless image compression
Author :
Fan, N. ; Reddy, PS
Author_Institution :
Pittsburgh Univ., PA, USA
Abstract :
A cost effective solution for a cineangiogram archive is proposed based on a hybrid method of lossless image compression. Compared with several other approaches, the authors solution achieves the highest average compression ratio of 3.9:1, and yet the shortest decoding time. Decompression contains two steps: (1) from a compressed cineangiogram file on a disk to half decoded data in computer memory; (2) from the data in memory to fully decoded images in a display frame buffer. For an image sequence of 512×512 resolution, step-1 takes less than 200 ms/frame, and step-2 less than 28 ms/frame on a Sparc-10 workstation. Thus after step-1 loading, cine looping with either DSA or image mode can reach to 25 fps, suitable for clinical applications
Keywords :
PACS; angiocardiography; data compression; diagnostic radiography; medical image processing; 512 pixel; Sparc-10 workstation; cine looping; cineangiogram archive; cost effective solution; digital cardiac angiogram archiving; display frame buffer; fully decoded images; half decoded data; hybrid compression method; lossless image compression; medical diagnostic images; medical diagnostic imaging; Catheterization; Computer displays; Costs; Decoding; Image coding; Image reconstruction; Image resolution; Image sequences; Laboratories; Workstations;
Conference_Titel :
Computers in Cardiology 1994
Conference_Location :
Bethesda, MD
Print_ISBN :
0-8186-6570-X
DOI :
10.1109/CIC.1994.470198
