Title :
Application of run-length coding in reprojection
Author :
Fatemi, M. ; Kelarestaghi, M.
Author_Institution :
Dept. of Electr. Eng., Amirkabir Univ., Tehran, Iran
Abstract :
A fast reprojection algorithm based on run-length coding of the image is presented. In run-length coding each run represents the number of adjacent pixels with identical gray level. The present algorithm reprojects one run, rather than one pixel, at a time. It is particularly suitable for applications where the image contains large areas of constant values (e.g. water or air), or where the number of image quantization levels can be reduced in favor of reprojection speed
Keywords :
computerised tomography; image reconstruction; medical image processing; adjacent pixels; air; constant values; fast reprojection algorithm; identical gray level; image quantization levels; reconstructed computerised tomography image; reprojection speed; run-length coding; water; Application software; Computed tomography; Image coding; Image reconstruction; Iterative algorithms; Liquid crystal on silicon; Quantization; X-ray imaging;
Conference_Titel :
Nuclear Science Symposium and Medical Imaging Conference, 1992., Conference Record of the 1992 IEEE
Conference_Location :
Orlando, FL
Print_ISBN :
0-7803-0884-0
DOI :
10.1109/NSSMIC.1992.301046
