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运动估值技术及其应用(三)
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作者 Watk.,J 杨生 《国际广播电视技术》 1996年第6期51-58,共8页
在任何运动补偿装置里,一项必不可必的处理过程是运动估值,在此过程中对相继的源图像进行分析以确定运动着的物体。屏幕上一个物体的运动由运动矢量来描述,这是一个有长度和方向的二维参数。还必须有一个称为矢量指配的过程,在此过... 在任何运动补偿装置里,一项必不可必的处理过程是运动估值,在此过程中对相继的源图像进行分析以确定运动着的物体。屏幕上一个物体的运动由运动矢量来描述,这是一个有长度和方向的二维参数。还必须有一个称为矢量指配的过程,在此过程中把适当的运动矢量分配给图像中的每个像素位置以构成一个矢量场。第三阶段便是真正的运动补偿过程了,它利用矢量场指挥滤波轴与光学的流程轴平行。 展开更多
关键词 块匹配 分层空间相关性 电视 运动估值技术
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Assessing proprioception:A critical review of methods 被引量:6
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作者 Jia Han Gordon Waddington +2 位作者 Roger Adams Judith Anson Yu Liuc 《Journal of Sport and Health Science》 SCIE 2016年第1期80-90,共11页
To control movement,the brain has to integrate proprioceptive information from a variety of mechanoreceptors.The role of proprioception in daily activities,exercise,and sports has been extensively investigated,using d... To control movement,the brain has to integrate proprioceptive information from a variety of mechanoreceptors.The role of proprioception in daily activities,exercise,and sports has been extensively investigated,using different techniques,yet the proprioceptive mechanisms underlying human movement control are still unclear.In the current work we have reviewed understanding of proprioception and the three testing methods:threshold to detection of passive motion,joint position reproduction,and active movement extent discrimination,all of which have been used for assessing proprioception.The origin of the methods,the different testing apparatus,and the procedures and protocols used in each approach are compared and discussed.Recommendations are made for choosing an appropriate technique when assessing proprioceptive mechanisms in different contexts. 展开更多
关键词 Joint motion sense Joint position sense Kinaesthesia Movement discrimination Propnoception
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