Title :
Improvement and restoration of biomedical images blurred by body movement
Author :
Hori, J. ; Saitoh, Y. ; Kiryu, T. ; Okamoto, K. ; Sakai, K.
Author_Institution :
Fac. of Eng., Niigata Univ., Japan
Abstract :
The restoration of biomedical images that have been blurred due to body movement are discussed. The observation system for these images is described using a mathematical operator and coordinate transformations. And a band-suppressed restoration filter composed of a series of such operators is proposed for improving the quality of images. In addition, redundancy is introduced into these restoration filters in order to suppress additive noise. The proposed method is applied to blurred X-ray images of a bone model of the elbow joint. The optimum position and number of markers, which are attached to the subject as a reference signal, are also discussed.
Keywords :
biomechanics; diagnostic radiography; image restoration; medical image processing; motion compensation; orthopaedics; X-ray images restoration; band-suppression; blur; blurred X-ray images; body movement; bone model; elbow joint; filter redundancy; image quality improvement; markers number; medical diagnostic imaging; optimum position; reference signal; Additive noise; Biomedical engineering; Biomedical imaging; Frequency; Image restoration; Inverse problems; Medical diagnostic imaging; Nonlinear filters; Signal restoration; X-ray imaging;
Conference_Titel :
Engineering in Medicine and Biology Society, 2001. Proceedings of the 23rd Annual International Conference of the IEEE
Print_ISBN :
0-7803-7211-5
DOI :
10.1109/IEMBS.2001.1017282
