公开(公告)号：KR101024104B1

公开(公告)日：2011-03-22

申请号：KR1020090110705

申请日：2009-11-17

Applicant: 서강대학교산학협력단

Inventor： 최정태 ,  한호성 ,  박래홍

IPC: H04N17/00 ,  G06T1/00

CPC classification number: G06T7/0002 ,  G06T5/40 ,  G06T2207/30168 ,  H04N17/04 ,  H04N19/124 ,  H04N19/176

Abstract: PURPOSE: A method and an apparatus for evaluating the pixel quality by partitioning a polar coordinate plane into a quantized region are provided to efficiently extract an image in an RR pixel quality evaluation method. CONSTITUTION: An original image and a deteriorate image are partitioned to a plurality of unit blocks(410). Each pixel value of the unit blocks is calculated(420). A representative image pixel difference between a horizontal direction and a vertical direction is calculated by block(430). The representative pixel value difference is transformed to the coordinate of a polar coordinate plane(440). An image quality assessment metric is calculated by using the difference between the original image and the deteriorate image(460).

Abstract translation: 目的：提供一种通过将极坐标平面划分为量化区域来评估像素质量的方法和装置，以有效地提取RR像素质量评估方法中的图像。 构成：将原始图像和恶化图像分割成多个单位块（410）。 计算单位块的每个像素值（420）。 通过块（430）计算水平方向和垂直方向之间的代表性图像像素差异。 将代表像素值差变换为极坐标平面的坐标（440）。 通过使用原始图像和恶化图像之间的差异来计算图像质量评估度量（460）。