公开(公告)号：US20100302154A1

公开(公告)日：2010-12-02

申请号：US12783970

申请日：2010-05-20

申请人： Min Sup LEE ,  Jae Kyung LEE ,  Kun Sik LEE ,  Gyu Seung KIM

发明人： Min Sup LEE ,  Jae Kyung LEE ,  Kun Sik LEE ,  Gyu Seung KIM

IPC分类号： G09G5/08

CPC分类号： H03J1/0025 ,  G06F3/0346 ,  G08C2201/20 ,  G08C2201/32

摘要： A method for pairing and operating a multi-mode pointing device is provided. A pointing device may be automatically paired with an image display device. A pairing request signal may be transmitted on a prescribed frequency channel, and a signal may be received indicating information of a plurality of frequency channels. One of the frequency channels may be selected as a pairing frequency channel for operating in a radio frequency mode.

摘要翻译： 提供了一种用于配对和操作多模式定位设备的方法。 指示设备可以自动与图像显示设备配对。 可以在规定的频率信道上发送配对请求信号，并且可以接收指示多个频率信道的信息的信号。 频率信道中的一个可以被选择为用于在射频模式下操作的配对频率信道。

公开(公告)号：US5787199A

公开(公告)日：1998-07-28

申请号：US580235

申请日：1995-12-28

申请人： Min-Sup Lee

发明人： Min-Sup Lee

IPC分类号： H04N5/272 ,  G06T7/20 ,  H04N5/92 ,  H04N5/937 ,  H04N19/00 ,  H04N19/423 ,  G06K9/46 ,  G06K9/48 ,  G06K9/52 ,  G06K9/68

CPC分类号： H04N19/503 ,  G06T7/2053

摘要： An apparatus, for use in a low bit-rate image signal encoder, for detecting a foreground region in an image signal, wherein the image signal has a number of objects therein and the foreground region has at least one moving object therein, which comprises: a previous frame memory for storing a previous frame of the image signal; a current frame memory for storing a current frame of the image signal; a change detector for comparing the current frame and the previous frame to detect changed pixels, each changed pixel having a differential luminance value; a region detector for detecting an object region for one of the objects in the current frame; and a foreground/background determinator for counting the number of all of the pixels contained in the object region to determine a first size of the object region; and for counting the number of changed pixels which are located in the object region to determine a second size of the object region; and for comparing the first size with the second size to determine whether the object region is the foreground region.

摘要翻译： 一种用于低比特率图像信号编码器的装置，用于检测图像信号中的前景区域，其中图像信号具有多个物体，前景区域中至少有一个移动物体，其包括： 用于存储图像信号的先前帧的先前帧存储器; 用于存储图像信号的当前帧的当前帧存储器; 改变检测器，用于比较当前帧和前一帧以检测改变的像素，每个改变的像素具有差分亮度值; 区域检测器，用于检测当前帧中的对象之一的对象区域; 以及前景/背景确定器，用于对包含在对象区域中的所有像素的数量进行计数，以确定对象区域的第一大小; 并且用于计数位于所述对象区域中的改变像素的数量以确定所述对象区域的第二尺寸; 并且用于将第一大小与第二大小进行比较以确定对象区域是否是前景区域。

公开(公告)号：US5760846A

公开(公告)日：1998-06-02

申请号：US579392

申请日：1995-12-27

申请人： Min-Sup Lee

发明人： Min-Sup Lee

IPC分类号： H04N19/50 ,  H04N19/105 ,  H04N19/134 ,  H04N19/136 ,  H04N19/137 ,  H04N19/167 ,  H04N19/176 ,  H04N19/196 ,  H04N19/20 ,  H04N19/423 ,  H04N19/503 ,  H04N19/51 ,  H04N19/513 ,  H04N19/54 ,  H04N19/543 ,  H04N19/57 ,  H04N19/59 ,  H04N19/60 ,  H04N19/61 ,  H04N19/625 ,  H04N19/91 ,  H04N7/133 ,  H04N7/12 ,  H04N7/32

CPC分类号： H04N19/543 ,  H04N19/54

摘要： An apparatus for determining a set of motion vectors for a set of feature points located on a contour of a moving object of a video signal comprises a contour displacement detection circuit for detecting a contour displacement range between a previous contour of the moving object contained in the previous frame and a current contour of the moving object contained in the current frame; and a feature point motion estimation circuit for comparing one of feature point blocks, having one of the feature points, with each of candidate blocks derived from a corresponding feature point search region adaptively regulated by the contour displacement range and for assigning a spatial displacements between one of the feature point block and a most similar candidate block thereto as a motion vector for a feature point corresponding to the one to thereby generating the set of motion vectors for the set of feature points.

摘要翻译： 一种用于确定位于视频信号的运动物体的轮廓上的一组特征点的运动矢量集合的装置包括轮廓位移检测电路，用于检测包含在视频信号中的运动物体的先前轮廓之间的轮廓位移范围 前一帧和当前帧中包含的移动对象的当前轮廓; 以及特征点运动估计电路，用于将具有一个特征点的特征点块之一与从由轮廓位移范围自适应地调节的相应特征点搜索区域导出的每个候选块进行比较，并且用于在一个 的特征点块和最相似的候选块作为与之对应的特征点的运动矢量，从而生成该特征点集合的运动矢量集合。

公开(公告)号：US5751362A

公开(公告)日：1998-05-12

申请号：US544355

申请日：1995-10-17

申请人： Min-Sup Lee

发明人： Min-Sup Lee

IPC分类号： H04N19/50 ,  H04N19/102 ,  H04N19/105 ,  H04N19/134 ,  H04N19/136 ,  H04N19/137 ,  H04N19/139 ,  H04N19/167 ,  H04N19/172 ,  H04N19/189 ,  H04N19/196 ,  H04N19/20 ,  H04N19/423 ,  H04N19/51 ,  H04N19/533 ,  H04N19/54 ,  H04N19/543 ,  H04N19/625 ,  H04N7/32 ,  H04N7/30

CPC分类号： H04N19/54

摘要： A motion-compensated video signal encoder has a circuit for determining a predicted current frame based on a current frame and a previous frame of a digital video signal. The circuit includes a region detection circuit for detecting a processing region encompassing a moving object from the previous frame based on a difference between the current and the previous frames to generate region information representing the detected processing region. Therefore, a number of pixels is selected from the pixels contained in the detected processing region as feature points based on the region information. A first set of motion vectors between the current and the previous frames, each of the first set of motion vectors representing a motion for each of the selected pixels is then detected. The first set of motion vectors is used for predicting the predicted current frame and transmitted as a set of motion vectors of the video signal together with the region information.

摘要翻译： 运动补偿视频信号编码器具有用于基于当前帧和数字视频信号的前一帧来确定预测的当前帧的电路。 电路包括区域检测电路，用于基于当前帧和先前帧之间的差异检测包含来自前一帧的移动物体的处理区域，以生成表示检测到的处理区域的区域信息。 因此，基于区域信息，从检测出的处理区域中包含的像素中选择多个像素作为特征点。 在当前帧和先前帧之间的第一组运动矢量，然后检测表示每个所选像素的运动的第一组运动矢量。 第一组运动矢量用于预测预测的当前帧并作为视频信号的一组运动矢量与区域信息一起发送。

公开(公告)号：US5710603A

公开(公告)日：1998-01-20

申请号：US498503

申请日：1995-07-05

申请人： Min-Sup Lee

发明人： Min-Sup Lee

IPC分类号： H04N7/26 ,  H04N7/32

CPC分类号： H04N19/51

摘要： A method for determining a set of motion vectors between a current frame and a reference frame of video signals, which comprises the steps of: (a) one dimensionally comparing a search block from the current frame with said plurality of candidate blocks included in a search region corresponding to the search block, on a block-by-block basis, by employing a one-dimensional error function using horizontal and vertical integral projections to select a predetermined number of candidate blocks in an ascending order of the one-dimensional error; (b) two dimensionally comparing the search block with the predetermined number of candidate blocks selected in step(a) above, on a block-by-block basis, by employing a two-dimensional error function to thereby select a most similar candidate block and derive a motion vector representing the displacement of pixels between the search block and the most similar candidate block so as to assign the derived motion vector as the motion vector for the search block; and (c) repeating steps (a) and (b) until all of the search blocks constituting the current frame are searched against the entire reference frame, to thereby derive a set of motion vectors.

摘要翻译： 一种用于确定视频信号的当前帧和参考帧之间的一组运动矢量的方法，包括以下步骤：（a）将来自当前帧的搜索块与包括在搜索中的所述多个候选块进行一维比较 通过采用使用水平和垂直积分投影的一维误差函数，以一维误差的升序来选择预定数量的候选块，逐块地对应于搜索块的区域; （b）通过采用二维误差函数将搜索块与在上述步骤（a）中选择的预定数量的候选块进行二维比较，以逐块为基础，从而选择最相似的候选块和 导出表示搜索块和最相似的候选块之间的像素的位移的运动矢量，以便将导出的运动矢量分配为搜索块的运动矢量; 并且（c）重复步骤（a）和（b），直到针对整个参考帧搜索构成当前帧的所有搜索块，从而导出一组运动矢量。

公开(公告)号：US5686973A

公开(公告)日：1997-11-11

申请号：US580238

申请日：1995-12-28

申请人： Min-Sup Lee

发明人： Min-Sup Lee

IPC分类号： H04N11/04 ,  H04N7/12 ,  H04N7/24 ,  H04N19/105 ,  H04N19/134 ,  H04N19/137 ,  H04N19/176 ,  H04N19/192 ,  H04N19/196 ,  H04N19/20 ,  H04N19/423 ,  H04N19/50 ,  H04N19/503 ,  H04N19/51 ,  H04N19/543 ,  H04N19/57 ,  H04N7/32

CPC分类号： H04N19/543 ,  H04N19/20

摘要： A method, for use in a segmentation-based coding system, for detecting motion vectors between a current frame and a previous frame of digital video signal comprises the steps of (a) generating segmentation data for each of the segmented regions, the segmentation data including contour information representing the shape and location for each segmented region and texture information representing a mean gray level of all pixels contained in each segmented region, (b) generating candidate segmentation data for each of the candidate regions, (c) producing a minimum-sized predetermined geometric pattern for encompassing a segmented region, (d) producing a minimum-sized predetermined geometric pattern for encompassing each of the candidate regions, (e) calculating an error value between the segmented region and each of the candidate regions, (f) selecting a candidate region yielding a smallest error value as a search region, (g) detecting one or more motion vectors between the segmented region and the search region; and (h) repeating said steps (c) to (g) for all the segmented regions.

摘要翻译： 一种用于在基于分段的编码系统中用于检测当前帧和数字视频信号的先前帧之间的运动矢量的方法包括以下步骤：（a）为每个分割区域生成分割数据，分割数据包括 表示每个分割区域的形状和位置的轮廓信息和表示每个分割区域中包含的所有像素的平均灰度级的纹理信息，（b）为每个候选区域生成候选分割数据，（c）产生最小尺寸 用于包围分段区域的预定几何图形，（d）产生用于包围每个候选区域的最小尺寸预定几何图案，（e）计算分割区域和每个候选区域之间的误差值，（f）选择 产生最小误差值作为搜索区域的候选区域，（g）检测分段区域之间的一个或多个运动矢量 n和搜索区域; 和（h）对于所有分段区域重复所述步骤（c）至（g）。

公开(公告)号：US5668608A

公开(公告)日：1997-09-16

申请号：US507579

申请日：1995-07-26

申请人： Min-Sup Lee

发明人： Min-Sup Lee

IPC分类号： G06T9/00 ,  H04N5/14 ,  H04N7/26 ,  H04N9/78

CPC分类号： H04N19/54 ,  H04N5/145

摘要： An inventive apparatus estimates correct motion vectors between a current and its previous frames for feature points selected from the previous frame. A motion vector detector first determines a set of initial motion vectors for the feature points. Subsequently, a displacement generator provides N number of displacements to an initial motion vector of a selected feature point to thereby produce a set of N candidate motion vectors for the selected feature point, wherein the selected feature point is surrounded by its, e.g., six neighboring feature points to form a previous hexagon having a set of six triangles. And then, a predictor provides quasi-feature points in the current frame from the neighboring feature points through the use of the initial motion vectors thereof; and also generates a set of N selected quasi-feature points from the selected feature point by using the N candidate motion vectors. And a weight factor generator selectively generates one from a multiplicity of weigh factors based on position data of each of the pixels in the current hexagon and each of the N subject quasi-feature points. Finally, a motion vector selector selects a motion vector from the N candidate motion vectors corresponding to a set of six triangles in the current hexagon which yields a minimum error value among N error values obtained through the use of the weight factors between the current and the previous hexagons.

摘要翻译： 本发明的装置估计从前一帧中选出的特征点的当前帧和其先前帧之间的正确运动矢量。 运动矢量检测器首先确定特征点的一组初始运动矢量。 随后，位移发生器向所选特征点的初始运动矢量提供N个位移，从而为所选择的特征点产生一组N个候选运动矢量，其中所选择的特征点由其例如六个相邻 特征点形成具有一组六个三角形的先前的六边形。 然后，预测器通过使用其初始运动矢量从相邻特征点在当前帧中提供准特征点; 并且还通过使用N个候选运动矢量从所选择的特征点生成一组N个选择的准特征点。 并且权重因子发生器基于当前六边形中的每个像素和N个对象准特征点中的每一个的位置数据，从多个权重因子中选择性地生成一个。 最后，运动矢量选择器从当前六边形中对应于一组六个三角形的N个候选运动矢量中选择运动矢量，其产生通过使用当前和当前六边形之间的权重因子而获得的N个误差值中的最小误差值 以前的六边形。

公开(公告)号：US5668600A

公开(公告)日：1997-09-16

申请号：US740358

申请日：1996-10-28

申请人： Min-Sup Lee

发明人： Min-Sup Lee

IPC分类号： H04N19/105 ,  G06T9/00 ,  H03M7/36 ,  H04N7/24 ,  H04N19/107 ,  H04N19/162 ,  H04N19/167 ,  H04N19/196 ,  H04N19/20 ,  H04N19/21 ,  H04N19/423 ,  H04N19/46 ,  H04N19/50 ,  H04N19/503 ,  H04N19/51 ,  H04N19/533 ,  H04N19/54 ,  H04N19/57 ,  H04N19/577 ,  H04N19/61 ,  H04N19/625 ,  H04N19/70 ,  H04N19/85 ,  H04N19/91 ,  H04N7/32

CPC分类号： H04N19/577 ,  H04N19/537 ,  H04N19/54

摘要： An apparatus, for use in an image signal encoding system, encodes a bidirectionally predictive frame (B frame) of a digital video signal to generate an encoded B frame signal. The apparatus selects two groups of pixels from pixels contained in a detected processing regions of a first and a second reference frames as a first and a second sets of feature points, respectively, by using a feature points selection circuit; and then determines a first set of motion vectors between the current and the first reference frames and a second set of motion vectors between the current and the second reference frames through the use of a feature point motion estimation circuit. Thereafter, the apparatus selects a set of motion vectors for the set of feature points from the first and the second sets of motion vectors to thereby generate a selected set of motion vectors and selection information representing the selected set as the encoded B frame.

摘要翻译： 一种用于图像信号编码系统的装置，对数字视频信号的双向预测帧（B帧）进行编码，以生成编码的B帧信号。 该装置通过使用特征点选择电路分别从第一和第二参考帧的检测的处理区域中包含的像素中分别选择两组像素作为第一和第二特征点集合; 然后通过使用特征点运动估计电路确定当前和第一参考帧之间的第一组运动矢量和当前和第二参考帧之间的第二组运动矢量。 此后，设备从第一和第二组运动矢量中选择一组特征点的运动矢量，从而生成选定的一组运动矢量和表示所选集合的选择信息作为编码的B帧。

公开(公告)号：US5546129A

公开(公告)日：1996-08-13

申请号：US498554

申请日：1995-07-05

申请人： Min-Sup Lee

发明人： Min-Sup Lee

IPC分类号： H04N19/50 ,  H04N19/102 ,  H04N19/105 ,  H04N19/134 ,  H04N19/136 ,  H04N19/137 ,  H04N19/139 ,  H04N19/152 ,  H04N19/167 ,  H04N19/172 ,  H04N19/176 ,  H04N19/189 ,  H04N19/196 ,  H04N19/423 ,  H04N19/46 ,  H04N19/463 ,  H04N19/503 ,  H04N19/51 ,  H04N19/517 ,  H04N19/54 ,  H04N19/543 ,  H04N19/57 ,  H04N19/61 ,  H04N19/625 ,  H04N19/70 ,  H04N19/91 ,  H04N7/133 ,  H04N7/137

CPC分类号： H04N19/54

摘要： A method for adaptively selecting feature points according to motions of objects between the current frame and the previous frame, comprising the steps of: subtracting a pixel value of the previous frame from a pixel value of the current frame to thereby provide a differential pixel value; comparing the differential pixel value with a first threshold value TH1 and selecting processing regions having differential pixel values larger than the first threshold value TH1; detecting a motion vector for each pixel of the processing region in the previous frame; providing a pixel value of the current frame based on the motion vector for each pixel of the processing region in the previous frame; subtracting a pixel value of said each pixel of the processing region in the previous frame from the pixel value of the current frame to thereby provide an error pixel value; comparing the error pixel value with a second threshold value TH2 and selecting grid regions having error pixel values larger than the second threshold value TH2; generating a first grid for each of the processing regions in the previous frame and generating a second grid for said each of the grid regions; detecting edge points from the previous frame; and selecting, as the feature points, a multiplicity of pixels in the previous frame based on the first and the second grids and the edge points.

摘要翻译： 一种用于根据当前帧与前一帧之间的对象的运动自适应地选择特征点的方法，包括以下步骤：从当前帧的像素值中减去前一帧的像素值，从而提供差分像素值; 将差分像素值与第一阈值TH1进行比较，并选择具有大于第一阈值TH1的差分像素值的处理区域; 检测前一帧中处理区域的每个像素的运动矢量; 基于前一帧中的处理区域的每个像素的运动矢量提供当前帧的像素值; 从当前帧的像素值中减去前一帧中的处理区域的每个像素的像素值，从而提供误差像素值; 将误差像素值与第二阈值TH2进行比较，并选择具有大于第二阈值TH2的误差像素值的网格区域; 为前一帧中的每个处理区域生成第一栅格，并为所述每个栅格区域生成第二栅格; 检测来自前一帧的边缘点; 以及基于所述第一和第二网格和所述边缘点来选择所述先前帧中的多个像素作为所述特征点。

公开(公告)号：US6014625A

公开(公告)日：2000-01-11

申请号：US984038

申请日：1997-12-02

申请人： Min-Sup Lee

发明人： Min-Sup Lee

IPC分类号： G06F3/16 ,  G06T1/00 ,  G06T7/20 ,  G06T13/00 ,  G06T13/20 ,  G06T13/80 ,  G06T17/00 ,  H04N19/00 ,  H04N19/102 ,  H04N19/137 ,  H04N19/196 ,  H04N19/20 ,  G10L9/18

CPC分类号： G06T17/00

摘要： In a three-dimensional model-based coding system, a shape of mouth, especially, a shape of lip, among a shape of face, has an important visual information. As each person has the different shape of lip, however, it is desirable to transform the shape of lip based on an individual person. First, a characteristic three-dimensional lip model based on the individual person is generated by matching a three-dimensional lip model to a basic lip of the individual person. Subsequently, the characteristic three-dimensional lip model is converted into a two-dimensional lip model and rotated according an angle of a actual lip image. In case that the person is talking, the two-dimensional lip model is reconstructed based on a recognized syllable. Finally, a difference between the two-dimensional lip model and the actual lip image is calculated. As not a whole real lip image but the difference between the actual image and the two-dimensional lip model similar to the actual lip image is transmitted, the amount of transmission data can be reduced.

摘要翻译： 在基于三维模型的编码系统中，具有形状的脸部形状的嘴，特别是唇形，具有重要的视觉信息。 然而，由于每个人具有不同的唇部形状，因此希望基于个人来改变唇部的形状。 首先，通过将三维唇模型与个人的基本唇匹配来生成基于个人的特征三维唇模型。 随后，将特征三维唇模型转换为二维唇模型并根据实际唇图像的角度旋转。 在这个人说话的情况下，二维唇模型是基于识别的音节来重建的。 最后，计算二维唇模型与实际唇图之间的差异。 作为不是一个完整的真实的嘴唇图像，但实际图像和类似于实际唇图像的二维唇模型之间的差异被传输，可以减少传输数据量。