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11. 发明授权

US5198902A Apparatus and method for processing a video signal containing single frame animation material 失效
标题翻译：用于处理包含单帧动画材料的视频信号的装置和方法
公开(公告)号：US5198902A
公开(公告)日：1993-03-30
申请号：US744265
申请日：1991-08-13
申请人： John W. Richards , Stephen M. Keating , John Galt
发明人： John W. Richards , Stephen M. Keating , John Galt
IPC分类号： G06T15/70 , H04N5/262 , H04N5/272
CPC分类号： H04N5/2625 , H04N5/272
摘要： Apparatus for processing a video signal derived by single frame animation for subsequent merging with live action material, comprises a motion vector estimator (11) for deriving motion vectors in dependence on motion in the picture sequence represented by the video signal, and an interpolator (12) and associated circuits (14 to 16) for blurring the images represented by the video signal of objects in the picture sequence so determined as being in motion in dependence on the motion vectors.
摘要翻译：用于处理由单帧动画导出的用于随后与实况动作材料合并的视频信号的装置包括：运动矢量估计器（11），用于根据由视频信号表示的图像序列中的运动导出运动矢量;以及内插器（12 ）和相关联的电路（14至16），用于将根据运动矢量确定为运动的图像序列中的对象的视频信号表示的图像模糊。

12. 发明授权

US5404170A Time base converter which automatically adapts to varying video input rates 失效
标题翻译：时基转换器，可自动适应不同的视频输入速率
公开(公告)号：US5404170A
公开(公告)日：1995-04-04
申请号：US46134
申请日：1993-04-15
申请人： Stephen M. Keating
发明人： Stephen M. Keating
IPC分类号： H04N7/01
CPC分类号： H04N7/014 , H04N7/0125
摘要： A time base changer for a video converter for converting between a sequence of input video images at an input video rate and a sequence of output video images at an output video rate is operable to convert from one of a number of input video rates to an output video rate. The time base changer includes N video stores 32 where N is a integer greater than one, each for storing a video image. The video stores are enabled cyclically and at the appropriate input video rate for storing successive input video images in successive video stores. Multiplexers 36 connected to the video stores can output pairs of video images from the video stores at the output video rate. The time base changer includes a counter 38 which can be clocked at the appropriate one of the input video rates. The counter is preferably a modulo-N counter. Control signals for controlling the multiplexer in the selection of the adjacent pairs of video stores preferably includes a samplers 44 for sampling the output of the counter 38 at the output video rate.
摘要翻译：用于以输入视频速率在输入视频图像序列之间转换的视频转换器的时基变换器和输出视频速率的输出视频图像序列可操作以从多个输入视频速率中的一个转换为输出视频率。时基变换器包括N个视频存储器32，其中N是大于1的整数，每个用于存储视频图像。视频存储器被循环地并且以适当的输入视频速率启用，用于在连续的视频存储器中存储连续的输入视频图像。连接到视频存储器的多路复用器36可以以输出视频速率从视频存储器输出视频图像对。时基变换器包括一个计数器38，该计数器38可以以适当的一个输入视频速率被计时。该计数器最好是一个模N计数器。在选择相邻视频存储器对时控制多路复用器的控制信号优选地包括用于以输出视频速率对计数器38的输出进行采样的采样器44。

13. 发明授权

US5162907A Motion dependent video signal processing 失效
标题翻译：运动相关视频信号处理
公开(公告)号：US5162907A
公开(公告)日：1992-11-10
申请号：US761647
申请日：1991-09-18
申请人： Stephen M. Keating , Sally J. Griffiths
发明人： Stephen M. Keating , Sally J. Griffiths
IPC分类号： H04N7/01
CPC分类号： H04N7/014
摘要： A motion compensated video standards converter comprises a block matcher (3) for deriving a plurality of motion vectors for each pixel of each field or frame of an output standards-converted video signal, the motion vectors representing motion between successive fields or frames of an input video signal from which the output video signal is to be derived by motion compensated interpolation, a circuit (25) for testing each said motion vector by deriving the sum of absolute luminance differences of corresponding pixels in blocks of pixels in the two fields or frames of said input video signal temporarily nearest a field or frame of said output video signal, which blocks are pointed to by the motion vector under test, a circuit (26 to 28) for center-weighting said sum of absolute luminance differences if the magnitude of said motion vector under test is less than a predetermined value, and a selector (29) for selecting from said plurality of motion vectors, the motion vector which results in the minimum said sum of absolute luminance differences.

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