Title :
Adaptive movable window enhancement in digital chest radiography
Author :
Cao, Xinhua ; Jiang, Dazong ; Zheng, Chongxun
Author_Institution :
Inst. of Biomed. Eng., Xi´´an Jiaotong Univ., China
Abstract :
The global linear min-max windowing is the most common clinical method of contrast enhancement, but it is inadequate for chest images because of wide dynamic range. Here, a method of local contrast enhancement is described, which uses a movable window. This technique automatically calculates the local histogram over the movable window, the maximum and minimum of the gray-level window based on the local cumulative distribution function (CDF) without manual intervention
Keywords :
adaptive signal processing; diagnostic radiography; image enhancement; medical image processing; adaptive movable window enhancement; clinical method; digital chest radiography; gray-level window; local cumulative distribution function; local histogram; medical diagnostic imaging; movable window; Adaptive equalizers; Application software; Biomedical engineering; Dynamic range; Histograms; Radiography;
Conference_Titel :
Engineering in Medicine and Biology Society, 1995., IEEE 17th Annual Conference
Conference_Location :
Montreal, Que.
Print_ISBN :
0-7803-2475-7
DOI :
10.1109/IEMBS.1995.575245
