公开(公告)号：US06195388B1

公开(公告)日：2001-02-27

申请号：US09116903

申请日：1998-07-17

申请人： Jae Gark Choi ,  Chie Teuk Ahn ,  Sung Hoon Hong

发明人： Jae Gark Choi ,  Chie Teuk Ahn ,  Sung Hoon Hong

IPC分类号： H04N712

CPC分类号： H04N21/23655 ,  H04N19/124 ,  H04N19/149 ,  H04N19/15 ,  H04N19/152 ,  H04N21/23406

摘要： A video encoding apparatus includes a plurality of encoders for encoding each of a plurality of video programs received from external; a multiplexer for multiplexing outputs of the plurality of encoding means; a buffer for temporarily storing and transmitting signal multiplexed by the multiplexer; and a central controller for receiving monitoring information with respect to buffer fullness from the buffer and providing quantization parameters to be applied to respective pictures to be now encoded with the respective encoders. The sum of the bit rates of all the multiplexed video programs is constant, but each of the video programs allows for a variable bit rate (VBR) by synchronously controlling each of a video encoders by means of the central controller, thereby maintaining a relatively uniform picture quality within one picture.

摘要翻译： 视频编码装置包括：多个编码器，用于编码从外部接收的多个视频节目的每一个; 多路复用器，用于复用多个编码装置的输出; 用于临时存储和发送由多路复用器复用的信号的缓冲器; 以及中央控制器，用于从缓冲器接收关于缓冲器充满度的监视信息，并提供要应用于要用相应编码器编码的各个图像的量化参数。 所有复用的视频节目的比特率的总和是恒定的，但是每个视频节目通过使用中央控制器同步地控制每个视频编码器来允许可变比特率（VBR），从而保持相对均匀 一张图片中的图片质量。

公开(公告)号：US06728427B1

公开(公告)日：2004-04-27

申请号：US09529609

申请日：2000-08-02

申请人： Jae Gark Choi ,  Mun Churl Kim ,  Myoung Ho Lee ,  Chie Teuk Ahn

发明人： Jae Gark Choi ,  Mun Churl Kim ,  Myoung Ho Lee ,  Chie Teuk Ahn

IPC分类号： G06K960

CPC分类号： H04N19/543 ,  H04N19/20

摘要： The present invention provides the method of extracting temporal and spatial combination markers including the steps of: (1) simplifying inputted current image frames, quantizing the simplified images, and then extracting spatial markers from the simplified and quantized image frames using spatial information; (2) extracting temporal markers from inputted current image frames and previous image frames using temporal information, and (3) combining the extracted spatial marker and the extracted temporal marker to extract temporal and spatial markers.

摘要翻译： 本发明提供了提取时间和空间组合标记的方法，包括以下步骤：（1）简化输入的当前图像帧，量化简化图像，然后使用空间信息从简化和量化的图像帧中提取空间标记; （2）使用时间信息从输入的当前图像帧和先前图像帧中提取时间标记，以及（3）组合提取的空间标记和提取的时间标记以提取时间和空间标记。

公开(公告)号：US6137913A

公开(公告)日：2000-10-24

申请号：US169018

申请日：1998-10-08

申请人： Jin Suk Kwak ,  Myoung Ho Lee ,  Mun Chul Kim ,  Chie Teuk Ahn ,  Jin Woong Kim ,  Jae Gark Choi

发明人： Jin Suk Kwak ,  Myoung Ho Lee ,  Mun Chul Kim ,  Chie Teuk Ahn ,  Jin Woong Kim ,  Jae Gark Choi

IPC分类号： H04N7/24 ,  G06T5/00 ,  G06T7/20 ,  G06K9/36

CPC分类号： G06T7/2006 ,  G06T7/0083

摘要： 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.

摘要翻译： 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。

公开(公告)号：US06707851B1

公开(公告)日：2004-03-16

申请号：US09701822

申请日：2000-12-02

申请人： Jae Gark Choi ,  Myoung Ho Lee ,  Jin Suk Kwak ,  Munchurl Kim ,  Chieteuk Ahn

发明人： Jae Gark Choi ,  Myoung Ho Lee ,  Jin Suk Kwak ,  Munchurl Kim ,  Chieteuk Ahn

IPC分类号： H04B166

CPC分类号： H04N19/162 ,  G06T7/12 ,  G06T7/174 ,  G06T7/215 ,  G06T2207/10016 ,  G06T2207/20104 ,  G11B27/28 ,  H04N19/17 ,  H04N19/20

摘要： A video object segmentation method applicable to a video system is presented. The method includes primarily segmenting objects existing in a frame of a video sequence manually or semi-manually. The objects within a video sequence including the primarily segmented object are automatically segmented. The method also determines whether any scene change is made between consecutive frames or any new object other than the primarily segmented object appears within the video sequence being automatically segmented, when repeatedly performing automatically segmenting the objects within the video sequence for consecutive frames. And, the method repeatedly performs primarily segmenting objects existing in a frame of a video sequence manually or semi-manually if it is determined that any scene change is made between consecutive frames or any new object other than the primarily segmented object appears within the video sequence being automatically segmented.

摘要翻译： 提出了适用于视频系统的视频对象分割方法。 该方法主要包括手动或半手动地分割存在于视频序列的帧中的对象。 视频序列中包含主要分段对象的对象将自动分段。 该方法还确定在连续帧之间是否进行任何场景改变，或者当重复执行自动分割连续帧的视频序列内的对象时，在被自动分割的视频序列中出现除主要分段对象之外的任何新对象。 并且，如果确定在连续帧之间进行任何场景改变或除了主要分段对象之外的任何新对象出现在视频序列内，该方法主要重复执行存在于视频序列的帧中的分割对象的手动或半手动 被自动分段。