Title :
ROI coding of volumetric medical images with application to visualisation
Author :
Agrafiotis, Dimitris ; Bull, David R. ; Canagarajah, Nishan
Author_Institution :
Centre for Commun. Res., Bristol Univ., UK
Abstract :
This paper presents region of interest (ROI) coding of volumetric medical images with the region itself being three dimensional. An extension to 3D-SPIHT which allows 3D ROI coding is proposed. ROI coding enables faster reconstruction of diagnostically useful regions in volumetric datasets by assigning higher priority to them in the bitstream. It also introduces the possibility for increased compression performance, by allowing certain parts of the volume to be coded in a lossy manner while others are coded losslessly. Results presented highlight the benefits of the ROI extension. Additionally, a visualisation specific ROI coding case is examined. Results show the advantages of ROI coding in terms of the quality of the visualised decoded volume.
Keywords :
data compression; data visualisation; image coding; image reconstruction; medical image processing; ROI coding; image compression; image reconstruction; ray casting; region of interest extension; visualisation; volumetric medical images; Biomedical imaging; Image coding; Image communication; Image reconstruction; Image storage; Medical diagnostic imaging; Propagation losses; Streaming media; Visualization; Wavelet transforms;
Conference_Titel :
Image and Signal Processing and Analysis, 2003. ISPA 2003. Proceedings of the 3rd International Symposium on
Print_ISBN :
953-184-061-X
DOI :
10.1109/ISPA.2003.1296897
