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    • 2. 发明公开
    • Image processing apparatus, image processing method, and image processing program
    • 图像处理装置,图像处理方法和图像处理程序
    • EP2437483A3
    • 2017-12-13
    • EP11007890.4
    • 2011-09-28
    • Olympus Corporation
    • Kono, TakashiKanda, YamatoKitamura, MakotoMatsuda, TakehiroHirota, Masashi
    • H04N5/14G06T7/00
    • H04N5/142G06T7/13G06T7/181G06T2207/10068G06T2207/30028G06T2207/30092
    • An image processing apparatus (1c) includes a contour-candidate-edge detecting unit (16; 16a) that detects, as contour candidate edges, edges on the basis of a gradient magnitude of each pixel in a target image; a contour-edge detecting unit (17) that detect contour edges by performing thresholding on gradient magnitudes of the contour candidate edges; an interpolation-line generating unit (18; 18c) that generates a plurality of interpolation lines for connecting end points of respective end-point pairs on the basis of gradients of pixel values between the end points of the respective end-point pairs while each of the end point pairs is made up of an end point of an identical contour edge as a connection base and an end point of a different contour edge as a connection destination; and a contour-edge interpolating unit (19c) that selects one of the interpolation lines on the basis of gradients of pixel values of pixels on the interpolation lines, and interpolates a contour edge between end points, which are to be connected with the selected interpolation line, with the selected interpolation line.
    • 图像处理装置(1c)包括:轮廓候选边缘检测单元(16; 16a),其基于目标图像中的每个像素的梯度大小来检测边缘作为轮廓候选边缘; 轮廓边缘检测单元(17),通过对轮廓候选边缘的梯度强度执行阈值处理来检测轮廓边缘; 插补线生成部(18,18c),其基于各端点对的端点间的像素值的梯度,生成用于连接各端点对的端点的多个插补线; 端点对由作为连接基础的相同轮廓边缘的端点和作为连接目的地的不同轮廓边缘的端点组成; 以及轮廓边缘内插单元(19c),其基于内插线上的像素的像素值的梯度来选择内插线中的一个,并且内插要与选择的内插相连接的端点之间的轮廓边缘 线,与选定的插值线。
    • 4. 发明公开
    • IMAGE-PROCESSING APPARATUS, IMAGE-PROCESSING METHOD, AND IMAGE-PROCESSING PROGRAM
    • BILDVERARBEITUNGSVORGHHTUNG,BILDVERARBEITUNGSVERFAHREN UND BILDVERARBEITUNGSPROGRAMM
    • EP3085298A4
    • 2017-08-16
    • EP13899537
    • 2013-12-19
    • OLYMPUS CORP
    • KONO TAKASHIKANDA YAMATOKITAMURA MAKOTOKAMIYAMA TOSHIYA
    • A61B1/04G06T1/00G06T7/00G06T7/11G06T7/64
    • G06T7/11G06T7/0012G06T7/0081G06T7/64G06T2207/10068G06T2207/30028
    • Provided is an image processing apparatus, etc., that can accurately determine whether there are abnormal villi even if one image includes regions with different imaging distances to an object. An image processing apparatus 1 includes a region-of-interest setting unit 110 that sets a region of interest in an image; a linear convex region extracting unit 120 that extracts, from the region of interest, a linear region having a predetermined number or more of continuously-arranged pixels whose pixel values are higher than those of their neighboring pixels; an intra-region curvature feature data computing unit 130 that computes curvature feature data based on curvatures of one or more arcs along the linear region; and an abnormality determining unit 140 that determines whether there is an abnormal portion in the region of interest, based on a distribution of the curvature feature data.
    • 本发明提供一种图像处理装置等,即使一个图像包含与被摄体的成像距离不同的区域,也能够准确地判断是否存在异常绒毛。 图像处理装置1包括:关注区域设定单元110,其设定图像中的关注区域; 线性凸起区域提取单元120,其从关注区域提取具有预定数量或更多的连续排列的像素的线性区域,该像素的像素值高于其相邻像素的像素值; 区域内曲率特征数据计算单元130,其基于沿线性区域的一个或多个弧的曲率来计算曲率特征数据; 以及基于曲率特征数据的分布来确定在关注区域中是否存在异常部分的异常确定单元140。
    • 9. 发明公开
    • IMAGE-PROCESSING APPARATUS, IMAGE-PROCESSING METHOD, AND IMAGE-PROCESSING PROGRAM
    • 图像处理装置,图像处理方法和图像处理程序
    • EP3085298A1
    • 2016-10-26
    • EP13899537.8
    • 2013-12-19
    • Olympus Corporation
    • KONO, TakashiKANDA, YamatoKITAMURA, MakotoKAMIYAMA, Toshiya
    • A61B1/04G06T1/00
    • G06T7/11G06T7/0012G06T7/64G06T2207/10068G06T2207/30028
    • Provided is an image processing apparatus, etc., that can accurately determine whether there are abnormal villi even if one image includes regions with different imaging distances to an object. An image processing apparatus 1 includes a region-of-interest setting unit 110 that sets a region of interest in an image; a linear convex region extracting unit 120 that extracts, from the region of interest, a linear region having a predetermined number or more of continuously-arranged pixels whose pixel values are higher than those of their neighboring pixels; an intra-region curvature feature data computing unit 130 that computes curvature feature data based on curvatures of one or more arcs along the linear region; and an abnormality determining unit 140 that determines whether there is an abnormal portion in the region of interest, based on a distribution of the curvature feature data.
    • 本发明提供一种图像处理装置等,即使一个图像包含与被摄体的成像距离不同的区域,也能够准确地判断是否存在异常绒毛。 图像处理装置1包括:关注区域设定单元110,其设定图像中的关注区域; 线性凸起区域提取单元120,其从关注区域提取具有预定数量或更多的连续排列的像素的线性区域,该像素的像素值高于其相邻像素的像素值; 区域内曲率特征数据计算单元130,其基于沿线性区域的一个或多个弧的曲率来计算曲率特征数据; 以及基于曲率特征数据的分布来确定在关注区域中是否存在异常部分的异常确定单元140。