This paper describes an image segmentation technique in which an arbitrarily shaped contour was deformed stochastically until it fitted around an object of interest. The evolution of the contour was controlled by a simulated annealing process which caused the contour to settle into the global minimum of an image-derived “energy” function. The nonparametric energy function was derived from the s...

The most difficult procedure of image processing [3] is the task of image segmentation. The popular but well-motivated opinion is that medical images are particularly hard to analyze [1]. One of the most promising methods of image segmentation is the active contour approach [2,4,5,7-11]. Originally, active contour methods were developed as tools for low-level image segmentation but with the abi...

Numerous techniques have been employed to monitor humeral head translation due to its involvement with several shoulder pathologies. However, most of the techniques were not validated. The objective of this study is to compare the accuracy of manual digitization and contour registration in measuring superior translation of the humeral head. Eight pairs of cadaver scapulae and humerii bones were...