Analysis of Bone Shape by Local Controlled Deformable Contour for Bone Maturity Estimation
نویسندگان
چکیده
A new method for shape analysis of X-ray images of human hand bones for estimation of bone maturity is proposed. To handle low contrast and non-uniformity of X-ray images, we design stable pre-processings to enhance images. The contour extraction method is based on local force control of a connected contour for deforming so as to fit it to an outline of a piece of bone. As a result with real images some effective parameters can be calculated based on the contour shapes detected by the algorithm.
منابع مشابه
Real-Time Tracking of the Left Ventricle in 3D Echocardiography Using a State Estimation Approach
In this paper we present a framework for real-time tracking of deformable contours in volumetric datasets. The framework supports composite deformation models, controlled by parameters for contour shape in addition to global pose. Tracking is performed in a sequential state estimation fashion, using an extended Kalman filter, with measurement processing in information space to effectively predi...
متن کاملTowards Intelligent Deformable Models for Medical Image Analysis
Medical imaging continues to permeate the practice of medicine, but automated yet accurate segmentation and labeling of anatomical structures continues to be a major obstacle to computerized medical image analysis (MIA). Deformable models, with its profound roots in estimation theory, optimization, and physics-based dynamical systems, represent a powerful approach to the general problem of medi...
متن کاملA multi-scale method for automatically extracting the dominant features of cervical vertebrae in CT images
Localization of the dominant points of cervical spines in medical images is important for improving the medical automation in clinical head and neck applications. In order to automatically identify the dominant points of cervical vertebrae in neck CT images with precision, we propose a method based on multi-scale contour analysis to analyzing the deformable shape of spines. To extract the spine...
متن کاملSegmenting Tibia and Femur from Knee X-ray Images
Automatic segmentation of bone contours in knee x-ray images is investigated as a step towards reliable, quantitative radiographic analysis of osteoarthritis for diagnosis and assessment of progression. A double contour active shape model is proposed in order to simultaneously segment anterior and posterior contours of the tibial plateaux. Several features are compared for modelling local appea...
متن کاملSegmenting the Tibia and Femur from Knee X-ray Images
Automatic segmentation of bone contours in knee x-ray images is investigated as a step towards reliable, quantitative radiographic analysis of osteoarthritis for diagnosis and assessment of progression. A double contour active shape model is proposed in order to simultaneously segment anterior and posterior contours of the tibial plateaux. Several features are compared for modelling local appea...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 1996