Title :
Computerized system for digital subtraction, image processing and measuring of periapical radiographs
Author :
Houjin, Chen ; Xianqi, Wu
Author_Institution :
Dept. of Commun. & Control Eng., Northern Jiaotong Univ., Beijing, China
Abstract :
This paper introduces a computerized system for digital subtraction, image processing and measuring of periapical radiographs. This system has clinical applications. Based on the experimental test for this system, it has been found that the digital subtraction system for conventional radiography is very valuable for the diagnosis of minute bone lesions in the root side and apical part of the teeth. A new method for gray correction is presented and a new algorithm for image edge detection is designed. What is more, the principle of calibration and normalization for image measurement is also described and reasoned mathematically
Keywords :
biomedical measurement; bone; calibration; diagnostic radiography; edge detection; medical image processing; X-ray plates; calibration; clinical applications; computerized system; digital subtraction; experimental test; gray correction method; image edge detection; image measurement; image processing; minute bone lesions diagnosis; normalization; periapical radiograph; radiography; root; teeth; Algorithm design and analysis; Application software; Bones; Calibration; Diagnostic radiography; Image edge detection; Image processing; Lesions; System testing; Teeth;
Conference_Titel :
Signal Processing, 1996., 3rd International Conference on
Conference_Location :
Beijing
Print_ISBN :
0-7803-2912-0
DOI :
10.1109/ICSIGP.1996.566288
