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1.发明公开Apparatus for further compressing and recording encoded digital video data streams 失效设备以用于进一步压缩和编码的数字图像数据流的记录。
公开(公告)号：EP0627858A2
公开(公告)日：1994-12-07
申请号：EP94107818.0
申请日：1994-05-20
发明人： Seng, Boon Choong
CPC分类号： H04N19/40 , H04N5/9264 , H04N9/7921 , H04N19/124 , H04N19/126 , H04N19/13 , H04N19/132 , H04N19/146 , H04N19/162 , H04N19/18 , H04N19/184 , H04N19/196 , H04N19/46 , H04N19/60 , H04N19/91
摘要： An encoded video data re-compressing apparatus further compresses, for further transmission or storage, an encoded video data stream that includes quantization parameters and quantized coefficients without having to decompress the encoded video data streams and subsequently re-compress the decompressed video data. The encoded video data stream is parsed for extracting the quantization parameters and quantized coefficients from other side information. The quantized coefficients are either divided by a predetermined integer or selectively discarded to reduce the total number of bits. In the former case, the corresponding quantization parameters are multiplied by a predetermined integer. The manipulated coefficients and quantization parameters are multiplexed with the side information, such that they occupy the location of the corresponding original coefficients and quantization parameters in the video data stream. Equipped with a digital data recorder and a set of switches, the encoded digital video data stream could be recorded in either its original form (a normal recording mode) or a more compact form (a long recording mode) by dividing the quantized coefficients by a predetermined integer or selectively discarding some of the coefficients.
摘要翻译： 经编码的视频数据重新压缩装置压缩此外，用于传输或存储。此外，在经编码的视频数据流包括没有量化参数和量化的系数，而无需解压缩所述编码的视频数据流，并且随后重新压缩的解压视频数据。 经编码的视频数据流被解析为从其他侧信息提取的量化参数和量化的系数。 量化的系数通过预定整数分的任一个或选择性地丢弃，以减少的比特的总数。 在前一种情况下，量化参数由规定的完整性相应倍增。 操纵系数和量化参数进行复用的辅助信息，搜索thatthey占据视频数据流中的原始相应的系数和量化参数的位置。 通过将除以量化系数配备有数字数据记录器和一组开关，该编码的数字视频数据流可以被记录在任一其原始形式的（正常记录模式）或更紧凑的形式（长记录模式） 规定的整数或选择地放弃一些系数。
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2.发明公开Apparatus for further compressing and recording encoded digital video data streams 失效设备以用于进一步压缩和编码的数字图像数据流的记录。
公开(公告)号：EP0627858A3
公开(公告)日：1995-04-19
申请号：EP94107818.0
申请日：1994-05-20
发明人： Seng, Boon Choong
CPC分类号： H04N19/40 , H04N5/9264 , H04N9/7921 , H04N19/124 , H04N19/126 , H04N19/13 , H04N19/132 , H04N19/146 , H04N19/162 , H04N19/18 , H04N19/184 , H04N19/196 , H04N19/46 , H04N19/60 , H04N19/91
摘要： An encoded video data re-compressing apparatus further compresses, for further transmission or storage, an encoded video data stream that includes quantization parameters and quantized coefficients without having to decompress the encoded video data streams and subsequently re-compress the decompressed video data. The encoded video data stream is parsed for extracting the quantization parameters and quantized coefficients from other side information. The quantized coefficients are either divided by a predetermined integer or selectively discarded to reduce the total number of bits. In the former case, the corresponding quantization parameters are multiplied by a predetermined integer. The manipulated coefficients and quantization parameters are multiplexed with the side information, such that they occupy the location of the corresponding original coefficients and quantization parameters in the video data stream. Equipped with a digital data recorder and a set of switches, the encoded digital video data stream could be recorded in either its original form (a normal recording mode) or a more compact form (a long recording mode) by dividing the quantized coefficients by a predetermined integer or selectively discarding some of the coefficients.
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3.发明公开Apparatus for scalable encoding and decoding of a digital video signal 失效Vorrichtung zur skalierbaren Kodierung und Dekodierung digitaler Videosignale。
公开(公告)号：EP0608092A2
公开(公告)日：1994-07-27
申请号：EP94300306.1
申请日：1994-01-17
发明人： Seng, Boon Choong
CPC分类号： H04N19/587 , H04N19/30 , H04N19/37 , H04N19/63
摘要： In a scaling method of interlaced video signals suitable for layered coding, interpolation process is restricted within a frame where the interpolation of one field in a frame is derived from the same field and its opposite field in the same frame. The first field is converted to a first progressive image such that an interpolated line in the first field is formed by an weighted average of two or more adjacent lines in the first field plus an weighted average of two or more adjacent lines in the second field where one of these lines is co-sited with the interpolated line in the first field. Similarly, the second field is converted to a second progressive image such that an interpolated line in the second field is formed by an weighted average of two or more adjacent lines in the second field plus an weighted average of two or more adjacent lines in the first field where one of the lines in the first field is co-sited with the interpolated line in the second field. The first and second progressive images are then resampled vertically according to a predetermined resampling ratio m/n, where m and n are integers with n indicating the number of output samples out of m input samples. The sum of the weights for filtering the lines in the opposite field is zero.
摘要翻译： 在适于分层编码的隔行视频信号的缩放方法中，插值处理被限制在帧内的一个场的内插从同一帧中的相同场和其相反的场导出的帧中。 第一场被转换为第一逐行图像，使得第一场中的插入线由第一场中的两个或更多个相邻线的加权平均加上第二场中两个或更多个相邻线的加权平均形成，其中 这些行中的一个与第一个字段中的插入行共线。 类似地，第二场被转换为第二逐行图像，使得第二场中的插入线由第二场中的两个或更多个相邻行的加权平均加上第一场中的两个或更多个相邻行的加权平均值 其中第一个字段中的一个行与第二个字段中的插入行共存。 然后根据预定的重采样比m / n垂直重新采样第一和第二渐进图像，其中m和n是整数，其中n表示m个输入样本中的输出采样数。 用于过滤相反字段中的行的权重之和为零。
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4.发明授权Apparatuses and methods for scalable encoding and decoding of video signalss 失效Vorrichtungungen和方法，用于可分级编码和视频信号的解码
公开(公告)号：EP0608092B1
公开(公告)日：2000-04-05
申请号：EP94300306.1
申请日：1994-01-17
发明人： Seng, Boon Choong
CPC分类号： H04N19/587 , H04N19/30 , H04N19/37 , H04N19/63
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5.发明授权Apparatus for further compressing and recording encoded digital video data streams 失效设备以用于进一步压缩和编码的数字图像数据流的记录
公开(公告)号：EP0627858B1
公开(公告)日：1998-12-30
申请号：EP94107818.0
申请日：1994-05-20
发明人： Seng, Boon Choong
CPC分类号： H04N19/40 , H04N5/9264 , H04N9/7921 , H04N19/124 , H04N19/126 , H04N19/13 , H04N19/132 , H04N19/146 , H04N19/162 , H04N19/18 , H04N19/184 , H04N19/196 , H04N19/46 , H04N19/60 , H04N19/91
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公开(公告)号：EP0577418B1
公开(公告)日：1998-12-30
申请号：EP93305146.8
申请日：1993-06-30
IPC分类号： H04N7/32
CPC分类号： H04N19/577 , H04N19/107 , H04N19/503 , H04N19/61
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7.发明公开Apparatus for motion compensation coding of digital video signal 失效Vorrichtung zur Kodierung von digitalen Bildsignalen mit Bewegungskompensation。
公开(公告)号：EP0577418A2
公开(公告)日：1994-01-05
申请号：EP93305146.8
申请日：1993-06-30
IPC分类号： H04N7/137
CPC分类号： H04N19/577 , H04N19/107 , H04N19/503 , H04N19/61
摘要： For mode selection in motion compensated coding of digital video signals, reference is mode to the original pictures instead of decompressed pictures. Minimum errors produced during motion estimation, corresponding to optimum motion vectors, are used for mode selection. A motion detector detects a optimum motion vector of a current block, for each possible reference picture in the past and future, and outputs the optimum motion vectors and corresponding minimum errors. In a mode selector, an activity of the current block is estimated, an interpolated prediction obtained by averaging predictions from the past and future is evaluated, and an optimum mode is determined which gives a smallest value among all the minimum errors, the activity of the current block and the evaluation of the interpolated prediction.
摘要翻译： 对于数字视频信号的运动补偿编码中的模式选择，参考是原始图像的模式，而不是解压缩的图像。 对应于最佳运动矢量的运动估计过程中产生的最小误差用于模式选择。 运动检测器针对过去和将来的每个可能的参考图像检测当前块的最佳运动矢量，并且输出最佳运动矢量和对应的最小误差。 在模式选择器中，估计当前块的活动，通过对来自过去和未来的预测进行平均而获得的内插预测进行评估，并且确定在所有最小误差中给出最小值的最佳模式， 当前块和内插预测的评估。
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8.发明公开
公开(公告)号：EP0608092A3
公开(公告)日：1996-05-15
申请号：EP94300306.1
申请日：1994-01-17
发明人： Seng, Boon Choong
CPC分类号： H04N19/587 , H04N19/30 , H04N19/37 , H04N19/63
摘要： In a scaling method of interlaced video signals suitable for layered coding, interpolation process is restricted within a frame where the interpolation of one field in a frame is derived from the same field and its opposite field in the same frame. The first field is converted to a first progressive image such that an interpolated line in the first field is formed by an weighted average of two or more adjacent lines in the first field plus an weighted average of two or more adjacent lines in the second field where one of these lines is co-sited with the interpolated line in the first field. Similarly, the second field is converted to a second progressive image such that an interpolated line in the second field is formed by an weighted average of two or more adjacent lines in the second field plus an weighted average of two or more adjacent lines in the first field where one of the lines in the first field is co-sited with the interpolated line in the second field. The first and second progressive images are then resampled vertically according to a predetermined resampling ratio m/n, where m and n are integers with n indicating the number of output samples out of m input samples. The sum of the weights for filtering the lines in the opposite field is zero.
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公开(公告)号：EP0577418A3
公开(公告)日：1994-09-28
申请号：EP93305146.8
申请日：1993-06-30
IPC分类号： H04N7/137
CPC分类号： H04N19/577 , H04N19/107 , H04N19/503 , H04N19/61
摘要： For mode selection in motion compensated coding of digital video signals, reference is mode to the original pictures instead of decompressed pictures. Minimum errors produced during motion estimation, corresponding to optimum motion vectors, are used for mode selection. A motion detector detects a optimum motion vector of a current block, for each possible reference picture in the past and future, and outputs the optimum motion vectors and corresponding minimum errors. In a mode selector, an activity of the current block is estimated, an interpolated prediction obtained by averaging predictions from the past and future is evaluated, and an optimum mode is determined which gives a smallest value among all the minimum errors, the activity of the current block and the evaluation of the interpolated prediction.
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