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    • 8. 发明授权
    • Apparatus for estimating frame-to-frame and field-to-field motions
    • 用于估计帧到帧和场对场运动的装置
    • US5790208A
    • 1998-08-04
    • US956762
    • 1997-10-22
    • Jin Suk KwakJin Woong KimDo Nyon KimKang Whan LeeDong Hyun Kwon
    • Jin Suk KwakJin Woong KimDo Nyon KimKang Whan LeeDong Hyun Kwon
    • G06T7/20G06T1/00H04N7/26H04N7/50
    • H04N19/137H04N19/105H04N19/112
    • The present invention relates to an apparatus for simultaneously estimating a set of frame-to-frame motions between two frames and a set of field-to-field motions between two fields. The apparatus for simultaneously estimating both a set of frame-to-frame motions and a set of field-to-field motions, comprises: a first delay unit 1 for delaying a set of search area data of a first frame of the frames; a selection unit 3 for selecting a set of current reference data of a second frame of the frames or a set of previous reference data of the second frame; a motion estimation unit 4 for calculating a mean absolute difference between an output of a selection unit 3 and an output of the first delay unit 1; a second delay unit 2 for delaying a feedback reference data from the motion estimation unit 4; and a comparator 5 for receiving an output from the a motion estimation unit 4 and employing a mean absolute difference for each of the fields to produce a mean absolute difference, a motion vector and a prediction direction for each of the fields, and to produce a mean absolute difference and a motion vector for each of sets of the reference data contained in the second frame.
    • 本发明涉及一种用于同时估计两帧之间的帧到帧运动的集合以及两场之间的一组场对场运动的装置。 用于同时估计一组帧到帧运动和一组场对场运动的装置包括:第一延迟单元1,用于延迟帧的第一帧的一组搜索区域数据; 选择单元3,用于选择帧的第二帧的一组当前参考数据或第二帧的先前参考数据的集合; 运动估计单元4,用于计算选择单元3的输出和第一延迟单元1的输出之间的平均绝对差; 用于延迟来自运动估计单元4的反馈参考数据的第二延迟单元2; 以及比较器5,用于接收来自运动估计单元4的输出,并且对每个场采用平均绝对差以产生每个场的平均绝对差,运动矢量和预测方向,并且产生 对于包含在第二帧中的每个参考数据的集合的平均绝对差和运动矢量。
    • 10. 发明授权
    • Method for segmenting moving picture objects by contour tracking
    • 通过轮廓跟踪分割运动图像对象的方法
    • US6137913A
    • 2000-10-24
    • US169018
    • 1998-10-08
    • Jin Suk KwakMyoung Ho LeeMun Chul KimChie Teuk AhnJin Woong KimJae Gark Choi
    • Jin Suk KwakMyoung Ho LeeMun Chul KimChie Teuk AhnJin Woong KimJae Gark Choi
    • H04N7/24G06T5/00G06T7/20G06K9/36
    • G06T7/2006G06T7/0083
    • It is an object of the present invention to provide a method for automatically segmenting image objects by applying contour tracking to image objects with segmentation information of previous image object, and according to an aspect of the present invention, there is provided a method for segmenting an image object of a moving picture including the steps of: extracting and storing a contour of a previous image object of a previous scene by using a predetermined segmentation information of the previous image object; calculating a motion information by extracting a contour of the previous image object at a current scene; extracting a contour of a current image object by using the motion information and a space domain information of previous and current scenes; and extracting an image object area of the current image object at the current scene by using the contour of the current image object.
    • 本发明的目的是提供一种通过对具有先前图像对象的分割信息的图像对象应用轮廓跟踪来自动分割图像对象的方法,根据本发明的一个方面,提供了一种分割 运动图像的图像对象包括以下步骤:通过使用先前图像对象的预定分割信息来提取和存储先前场景的先前图像对象的轮廓; 通过在当前场景中提取先前图像对象的轮廓来计算运动信息; 通过使用运动信息和先前和当前场景的空间域信息来提取当前图像对象的轮廓; 以及通过使用当前图像对象的轮廓来提取当前场景处的当前图像对象的图像对象区域。