Title :
Surface extraction for volume rendering based on zero crossing points detection in wavelet domain
Author :
Haige, Shen ; Weidong, Wang ; Youan, Ke
Author_Institution :
Dept. of Electron. Eng., Beijing Inst. of Technol., China
Abstract :
Surface extraction is a popular preprocessing method for volume rendering acceleration. We discuss a surface extraction algorithm based on the wavelet transform. Given a basis wavelet function meeting certain conditions, the points on object surfaces can be picked up by detection of zero crossing points from the 3D wavelet transform components of the volume data. The experimental results show that multi-scale surfaces of objects can be obtained for further display. With the reduction of the effective samples for rendering, the speed of display increases with the tolerable cost of image quality
Keywords :
feature extraction; rendering (computer graphics); wavelet transforms; 3D wavelet transform components; basis wavelet function; display speed; image quality; multi-scale surfaces; preprocessing method; surface extraction algorithm; volume data; volume rendering; wavelet domain; zero crossing points detection; Acceleration; Costs; Data mining; Image edge detection; Laplace equations; Rendering (computer graphics); Smoothing methods; Surface waves; Wavelet domain; Wavelet transforms;
Conference_Titel :
Signal Processing Proceedings, 2000. WCCC-ICSP 2000. 5th International Conference on
Conference_Location :
Beijing
Print_ISBN :
0-7803-5747-7
DOI :
10.1109/ICOSP.2000.891665
