Title :
Research on spatial non-homogenous Kalman filter and its application in cephalometric image
Author :
Xinding, Sun ; Yan, Wang ; Xu Zhenming ; Changsheng, Xu
Author_Institution :
Dept. of Autom., Tsinghua Univ., Beijing, China
Abstract :
In the view of problems by processing the lateral cephalometric films in the automatic cephalometric analysis system, a noise-removing Kalman filter in spatial non-homogeneous images is proposed. The noise is effectively reduced and the edges in the image are preserved by adding information about the edges to the input of the filter. This approach can avoid the computational burden caused by the model parameter identification
Keywords :
Kalman filters; X-ray applications; diagnostic radiography; edge detection; filtering theory; medical image processing; surgery; X-ray cephalometric images; automatic cephalometric analysis system; cephalometric image; edge processing; filter input; lateral cephalometric film processing; noise reduction; noise removing Kalman filter; spatial nonhomogeneous images; spatial nonhomogenous Kalman filter; surgery; Autocorrelation; Digital filters; Gaussian noise; Information filtering; Information filters; Noise measurement; Noise reduction; Parameter estimation; Predictive models; Taylor series;
Conference_Titel :
Signal Processing, 1996., 3rd International Conference on
Conference_Location :
Beijing
Print_ISBN :
0-7803-2912-0
DOI :
10.1109/ICSIGP.1996.566280
