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FILM-MODE (3:2/2:2 PULLDOWN) DETECTOR, METHOD AND VIDEO DEVICE

机译:影片模式(3:2/2:2下拉)检测器,方法和视频设备

摘要

A film mode detector detects film mode of a series of fields of video by comparing pixels in a field adjacent the current field, with corresponding pixels directly above and directly below the pixels in an adjacent field. The number of pixels in the adjacent in time to the current field having (or not having) a value approximately between values of the pixels above and below in the current field is assessed. Film mode for a current field may be detected by monitoring the assessment from field to field. Alternatively or additionally, the detector may detect film mode by assessing for each current field, whether a relatively large or relatively small number of pixels in the immediately previous field have values outside a specified distance of values of a corresponding pixel in the immediately subsequent field, for at least a portion of the immediately previous and subsequent fields. Again, film mode may be detected by monitoring this second assessment from field to field.
机译:胶片模式检测器通过将与当前场相邻的场中的像素与相邻场中的像素正上方和正下方的对应像素进行比较,来检测一系列视频场的胶片模式。评估在时间上与当前场相邻的像素数,该像素数具有(或不具有)当前场中上下像素的值之间的近似值。当前场的电影模式可以通过监视场与场之间的评估来检测。替代地或附加地,检测器可以通过评估每个当前场来检测电影模式,即紧接在前的场中的像素是相对较大还是相对较少,其值在紧接在后的场中的对应像素的值的指定距离之外。至少一部分紧接的前一个和后一个字段。同样,可以通过逐场监视该第二评估来检测电影模式。

著录项

  • 公开/公告号EP1743482A1

    专利类型

  • 公开/公告日2007-01-17

    原文格式PDF

  • 申请/专利权人 ATI TECHNOLOGIES INC.;

    申请/专利号EP20050739740

  • 发明设计人 DOSWALD DANIEL;NG PATRICK CHE WA;

    申请日2005-05-02

  • 分类号H04N7/01;

  • 国家 EP

  • 入库时间 2022-08-21 20:47:42

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