公开(公告)号：US5943090A

公开(公告)日：1999-08-24

申请号：US715947

申请日：1996-09-19

申请人： Berthold Eiberger ,  Arno Beckenbach ,  Kurt-Heiner Philipp ,  Andreas Low ,  Broder Wendland ,  Thomas Herfet ,  Thomas Bonse ,  Wolfgang Paschedag ,  Thomas Leonard

发明人： Berthold Eiberger ,  Arno Beckenbach ,  Kurt-Heiner Philipp ,  Andreas Low ,  Broder Wendland ,  Thomas Herfet ,  Thomas Bonse ,  Wolfgang Paschedag ,  Thomas Leonard

IPC分类号： H04N5/253 ,  H04N3/36

CPC分类号： H04N5/253

摘要： A method of correcting picture steadiness errors (or film weave correction) in telecine scanning is proposed, in which, in a first step, at least one sample area of the picture contents of the video signal obtained by film scanning is determined by way of structure recognition, this sample area corresponding to a curvature in the picture contents. In a second step, it is checked, by way of comparison, whether the determined sample areas are recognizable in a search area of the sequential frame. In a third step, motion vector signals are generated when the sample areas are recognized again in the sequential frame, these motion vector signals defining the direction of motion and the extent of deviation of the position of the determined sample area from the position of the recognized sample area. In a fourth step, parameters of a transform function are determined by the motion vector signals. In a subsequent fifth step, motion vectors, which correspond to partial motions, are recognized and eliminated by comparing the transform function with the motion vectors. Steps four and five are performed several times, if necessary. In a sixth step, correction signals are derived by taking the temporal sequence of transform functions into account, and in a seventh step, these correction signals are applied to a control device, these correction signals correcting the stability errors in the picture signals.

摘要翻译： 提出了一种在电视电影扫描中校正图像稳定性错误（或胶片编织校正）的方法，其中在第一步骤中，通过胶片扫描获得的视频信号的图像内容的至少一个采样区域由结构 识别，该样本区域对应于图像内容中的曲率。 在第二步骤中，通过比较来检查确定的采样区域是否在连续帧的搜索区域中被识别。 在第三步骤中，当在连续帧中再次识别采样区域时，产生运动矢量信号，这些运动矢量信号定义运动方向和确定的采样区域的位置与所识别的位置的偏差程度 样品区。 在第四步中，变换函数的参数由运动矢量信号确定。 在随后的第五步中，通过将变换函数与运动矢量进行比较来识别和消除对应于部分运动的运动矢量。 如果需要，执行第四步和第五步多次。 在第六步骤中，通过考虑变换函数的时间序列来导出校正信号，并且在第七步骤中，这些校正信号被施加到控制装置，这些校正信号校正图像信号中的稳定性误差。