公开(公告)号：US5886745A

公开(公告)日：1999-03-23

申请号：US568477

申请日：1995-12-07

申请人： Tsutomu Muraji ,  Keiichi Kuzumoto ,  Satoshi Hirotsune ,  Mitsuru Kotaka

发明人： Tsutomu Muraji ,  Keiichi Kuzumoto ,  Satoshi Hirotsune ,  Mitsuru Kotaka

IPC分类号： H04N5/14 ,  H04N5/44 ,  H04N7/26 ,  H04N7/36 ,  H04N7/46 ,  H04N7/01

CPC分类号： H04N19/40 ,  H04N19/51 ,  H04N19/587 ,  H04N5/145 ,  H04N7/012

摘要： A progressive scanning conversion apparatus for converting an interlaced scan video signal into a progressive scan video signal by performing interpolation based on original pixels which are obtained in a matrix by sampling the interlaced scan video signal in a current field, original pixels which are obtained in a matrix by sampling the interlaced scan video signal in a previous field which is immediately prior to the current field, and original pixels which are obtained in a matrix by sampling the interlaced scan video signal in a next field which is immediately following the current field. The apparatus includes a motion vector detector for detecting a motion vector between two of the current field, the previous field, and the next field; a motion estimation circuit for estimating a pixel value in the current field, from one of a pixel in the previous field and a pixel in the next field using the motion vector detected by the vector detection means; and an interpolated pixel generator for generating an interpolated pixel used for conversion by multiplying the pixel value obtained by the motion estimation means and the corresponding pixel value in the current field by a weighting factor and summating the multiplication results.

摘要翻译： 一种逐行扫描转换装置，用于通过对当前场中的隔行扫描视频信号进行采样而以矩阵获得的原始像素进行插值，将隔行扫描视频信号转换成逐行扫描视频信号， 矩阵通过在紧邻当前场之前的先前场中采样隔行扫描视频信号，以及通过在紧随当前场的下一个场中采样隔行扫描视频信号而以矩阵获得的原始像素。 该装置包括：运动矢量检测器，用于检测当前场中的两个，前一场和下一场之间的运动矢量; 运动估计电路，用于使用由矢量检测装置检测的运动矢量，从前一场中的像素和下一场中的像素之一估计当前场中的像素值; 以及内插像素生成器，用于通过将由运动估计装置获得的像素值和当前场中的对应像素值乘以加权因子并乘以相乘结果来产生用于转换的内插像素。