Title :
The information content of X-ray CT images and its application in image analysis
Author :
Lei, Tianhu ; Zhao, Zuo ; Sewchand, Wilfred
Author_Institution :
Maryland Univ., Baltimore, MD, USA
Abstract :
The performance of image analysis depends on the quality of the image. A good image-quality criterion is the theoretical information content (IC) defined by C.E. Shannon. Shannon´s formula is valid on some preconditions. The authors validate the use of these conditions for X-ray computed-tomography (CT) images. The definitions of IC (region-based and image-based) for a single image and for image series are given, and the corresponding formulas are derived. The applications of IC and its formula in image analysis are also demonstrated
Keywords :
computerised tomography; medical image processing; X-ray CT images; image analysis; image information content; image quality; image series; medical diagnostic imaging; Additive noise; Autocorrelation; Computed tomography; Density functional theory; Frequency domain analysis; Image analysis; Image quality; Integrated circuit noise; Signal to noise ratio; X-ray imaging;
Conference_Titel :
Nuclear Science Symposium and Medical Imaging Conference, 1992., Conference Record of the 1992 IEEE
Conference_Location :
Orlando, FL
Print_ISBN :
0-7803-0884-0
DOI :
10.1109/NSSMIC.1992.301529
