医学图像处理.ppt

第四章图像增强技术 4.1 图像增强的目的、特点和方法 4.2 灰度直方图与图像的点处理 4.3 空域滤波增强 4.4 频域滤波增强 § 4.5 （伪）彩色图像增强 4.6 图像增强技术的综合运用 人眼的视觉特性 明暗视觉和视觉范围： ldhgf The objectives are: First, to understand the neuromuscular and mechanical compensatory mechanisms for ACL injuries; Secondly, to quantify individual muscles?roles in theadaptation process; Third, to quantify joint dynamic properties in three orthogonal directions and to evaluate knee injury,surgery outcome, and rehabilitation progress. Fourth, to develop more effective rehabilitation procedure. The major features are to consider knee structures in 3D space, to consider muscles?function at the level of individual heads of muscles, and to strengthen muscle selectively and differentailly. ldhgf ldhgf ldhgf The objectives are: First, to understand the neuromuscular and mechanical compensatory mechanisms for ACL injuries; Secondly, to quantify individual muscles?roles in theadaptation process; Third, to quantify joint dynamic properties in three orthogonal directions and to evaluate knee injury,surgery outcome, and rehabilitation progress. Fourth, to develop more effective rehabilitation procedure. The major features are to consider knee structures in 3D space, to consider muscles?function at the level of individual heads of muscles, and to strengthen muscle selectively and differentailly. ldhgf ldhgf ldhgf ldhgf ldhgf ldhgf ldhgf ldhgf ldhgf ldhgf ldhgf ldhgf ldhgf ldhgf ldhgf ldhgf Sobel Prewitt Roberts Laplacian of Gaussian Canny 亮度和对比度感觉 频率特性 视觉残留特性 B 2％ The objectives are: First, to understand the neuromuscular and mechanical compensatory mechanisms for ACL injuries; Secondly, to quantify individual muscles?roles in theadaptation process; Third, to quantify joint dynamic properties in three orthogonal directions and to evaluate knee injury,surgery outcome, and rehabilitation progress. Fourth, to develop more effective rehabilitation procedure. The major features are to consider knee structures in 3D space, to