公开(公告)号：KR101069712B1

公开(公告)日：2011-10-04

申请号：KR1020090057918

申请日：2009-06-26

Applicant: 전남대학교산학협력단

Inventor： 홍성훈 ,  장승민

IPC: H04N7/01

Abstract: 본발명은에지방향성의가중치를이용한필드내주사선보간방법및 그장치에관한것으로, 에지방향성보정을고려한효율적인공간적디인터레이싱알고리즘을제안한다. 기존의에지기반디인터레이싱알고리즘들은다른공간적디인터레이싱알고리즘들에비해시각적으로우수한결과를나타내지만화소단위의상관도를이용하여화소를보간하기때문에잘못된에지방향을찾게될 경우영상에잡음이발생한다. 제안한알고리즘은이러한단점을보완하기위해보간할화소주변의에지방향성을검출하고구해진정보에따라가중중앙값필터를적용하여에지의방향성을보정함으로써정확한에지의방향을찾아낸다. 실험결과제안된방법은기존의공간적디인터레이싱방법들에비하여객관적인 PSNR 성능과주관적화질도우수함을알 수있다.

公开(公告)号：KR1020110000446A

公开(公告)日：2011-01-03

申请号：KR1020090057918

申请日：2009-06-26

Applicant: 전남대학교산학협력단

Inventor： 홍성훈 ,  장승민

IPC: H04N7/01

CPC classification number: H04N7/0142 ,  H04N7/0145

Abstract: PURPOSE: An intra-field scanning line interpolating device, which used a weight value of edge directivity and a device thereof are provided to sense an edge directivity of a pixel and to apply weight central value filter about edge directivity of neighbor pixels of a center pixel, thereby maintaining more accurate edge directivity in a scanning line-interpolated image. CONSTITUTION: A directivity detection filter(101) senses edge directivity information about each pixel of an image for interpolation of an inputted interlaced scanning image. A weighted median filter(102) gives weight value in edge directivity through edge directivity information of pixel to interpolate and a neighboring pixel. A directivity interpolation filter(103) gives a pixel value to interpolate through an average value of two pixels. The two pixel is located in a detected edge direction.

Abstract translation: 目的：提供使用边缘方向性的权重值及其装置的场内扫描线内插装置来感测像素的边缘方向性，并且对中心像素的相邻像素的边缘方向性施加权重中心值滤波器 从而在扫描线内插图像中保持更准确的边缘方向性。 方案：指向性检测滤波器（101）感测关于图像的每个像素的边缘方向性信息，用于插入输入的隔行扫描图像。 加权中值滤波器（102）通过内插像素的边缘方向性信息和相邻像素给出边缘方向性的权重值。 指向性内插滤波器（103）给出了通过两个像素的平均值内插的像素值。 两个像素位于检测到的边缘方向。