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公开(公告)号：US5428396A
公开(公告)日：1995-06-27
申请号：US173042
申请日：1993-12-27
申请人： Yoichi Yagasaki , Jun Yonemitsu , Mark Veltman , Katsuji Igarashi , Motoki Kato
发明人： Yoichi Yagasaki , Jun Yonemitsu , Mark Veltman , Katsuji Igarashi , Motoki Kato
CPC分类号： H04N19/517 , H04N19/51 , H04N19/61 , H04N19/13 , H04N19/91
摘要： In connection with compression-coding of video signals on the basis of inter-frame correlation, a single reference table is used for variable length encoding of inter-frame motion vectors established on the basis of various motion vector value ranges and degrees of accuracy. A reference table is provided for variable length encoding motion vectors based on a particular value range and degree of accuracy. In order to use the same table for motion vectors based on a larger value range than that for which the table was designed, the value of a motion vector to be encoded is divided to form a quotient and a remainder. An addition bit code is formed on the basis of the remainder and is appended to a variable length code which corresponds in the reference table to the quotient so that a variable length code value is formed for the motion vector based on the larger range. As to motion vectors based on a finer degree of accuracy than was provided for in the reference table, the motion vector value is multiplied by an appropriate factor and the resulting product is used to obtain a corresponding variable length code value from the reference table. Decoding is performed using the same table and by means of decoding operations that are the inverse of the encoding operations.
摘要翻译： 结合帧间相关的视频信号的压缩编码，单个参考表用于根据各种运动矢量值范围和精度确定的帧间运动矢量的可变长度编码。 基于特定值范围和准确度提供了可变长度编码运动矢量的参考表。 为了使用相对于基于与设计表相比较大的值范围的运动矢量的相同的表，将要编码的运动矢量的值被分割以形成商和余数。 基于剩余部分形成相加位码，并将其附加到在参考表中对应于商的可变长度码，以便基于较大范围为运动矢量形成可变长度码值。 对于基于比参考表中提供的精度更精确的运动矢量的运动矢量，将运动矢量值乘以适当的因子，并且使用得到的乘积从参考表中获得相应的可变长度代码值。 使用相同的表格和通过与编码操作相反的解码操作进行解码。
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公开(公告)号：US5132792A
公开(公告)日：1992-07-21
申请号：US596491
申请日：1990-10-12
申请人： Jun Yonemitsu , Yoichi Yagasaki , Katsuji Igarashi , Mark Veltman
发明人： Jun Yonemitsu , Yoichi Yagasaki , Katsuji Igarashi , Mark Veltman
CPC分类号： H04N7/52 , H04N19/50 , H04N19/51 , H04N19/577 , H04N19/61
摘要： Video signal transmitting system in which digital video signal are divided into groups of predetermined frames. Digital video signals of at least one frame are intraframe coded and then transmitted. Remaining digital video signals are interframe coded with reference to the intraframe coded digital video signals, and intraframe coded digital video signals of a subsequent group of frames and are then transmitted. A motion vector from a predetermined reference frame is detected. Video signals are interframe coded by the motion vector to transmit the video signals. A motion vector from a first frame which is a plurality of frames away from the reference frame is converted to a motion vector for a one frame interval between the reference frame and the first frame. The motion vector is optimized, and is then transmitted.
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公开(公告)号：USRE37222E1
公开(公告)日：2001-06-12
申请号：US08277143
申请日：1994-07-19
申请人： Jun Yonemitsu , Yoichi Yagasaki , Katsuji Igarashi , Mark Veltman
发明人： Jun Yonemitsu , Yoichi Yagasaki , Katsuji Igarashi , Mark Veltman
IPC分类号： H04N750
CPC分类号： H04N7/52 , H04N19/50 , H04N19/51 , H04N19/577 , H04N19/61
摘要： Video signal transmitting system in which digital video signal are divided into groups of predetermined frames. Digital video signals of at least one frame are intraframe coded and then transmitted. Remaining digital video signals are interframe coded with reference to the intraframe coded digital video signals, and intraframe coded digital video signals of a subsequent group of frames and are then transmitted. A motion vector from a predetermined reference frame is detected. Video signals are interframe coded by the motion vector to transmit the video signals. A motion vector from a first frame which is a plurality of frames away from the reference frame is converted to a motion vector for a one frame interval between the reference frame and the first frame. The motion vector is optimized, and is then transmitted.
摘要翻译： 视频信号发送系统，其中数字视频信号被分成预定帧组。 至少一帧的数字视频信号被帧内编码，然后发送。 剩余的数字视频信号参照帧内编码的数字视频信号和随后的一组帧的帧内编码的数字视频信号进行帧间编码，然后被发送。 检测来自预定参考帧的运动矢量。 视频信号由运动矢量帧间编码以发送视频信号。 来自作为离基准帧的多个帧的第一帧的运动矢量被转换为参考帧和第一帧之间的一帧间隔的运动矢量。 优化运动矢量，然后传输。
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4.发明授权High efficiency encoding and decoding of picture signals and recording medium containing same 失效图像信号的高效率编码和解码以及包含其的记录介质
公开(公告)号：US6101313A
公开(公告)日：2000-08-08
申请号：US453279
申请日：1995-05-30
申请人： Katsuji Igarashi , Jun Yonemitsu , Yoichi Yagasaki , Yasushi Fujinami , Tomoyuki Sato , Motoki Kato , Teruhiko Suzuki
发明人： Katsuji Igarashi , Jun Yonemitsu , Yoichi Yagasaki , Yasushi Fujinami , Tomoyuki Sato , Motoki Kato , Teruhiko Suzuki
CPC分类号： H04N19/00 , H04N19/105 , H04N19/112 , H04N19/137 , H04N19/503 , H04N19/577 , H04N19/61 , H04N19/85 , H04N19/98 , H04N19/70
摘要： An encoder considers a frame representing a picture as comprised of areas. For each area, the encoder decides which of frame-based or field-based orthogonal transformation will be most efficient at reducing spatial redundancy in that area. For each area, the encoder decides which of frame-based or field-based predictive encoding will be most efficient at reducing temporal redundancy in that area. The encoder encodes each area of the picture frame using the most efficient orthogonal transformation technique and using the most efficient predictive encoding technique to produce an encoded signal. A decoder decodes the encoded signal. The encoded signal is recorded on a recording medium, transmitted over a transmission channel, or broadcast.
摘要翻译： 编码器将表示图像的帧视为由区域组成。 对于每个区域，编码器决定哪个基于帧的或基于场的正交变换将最有效地减少该区域中的空间冗余。 对于每个区域，编码器决定哪个基于帧的或基于场的预测编码在减少该区域的时间冗余方面将是最有效的。 编码器使用最有效的正交变换技术对图像帧的每个区域进行编码，并使用最有效的预测编码技术来产生编码信号。 解码器解码编码信号。 编码信号被记录在通过传输信道或广播传输的记录介质上。
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5.发明授权Video coding method and apparatus which select between frame-based and field-based predictive modes 失效在基于帧和基于场的预测模式之间进行选择的视频编码方法和装置公开(公告)号：US06226327B1
公开(公告)日：2001-05-01
申请号：US08084642
申请日：1993-06-29
申请人： Katsuji Igarashi , Jun Yonemitsu , Yoichi Yagasaki , Yasushi Fujinami , Tomoyuki Sato , Motoki Kato , Teruhiko Suzuki
发明人： Katsuji Igarashi , Jun Yonemitsu , Yoichi Yagasaki , Yasushi Fujinami , Tomoyuki Sato , Motoki Kato , Teruhiko Suzuki
IPC分类号： H04N736
CPC分类号： H04N19/00 , H04N19/105 , H04N19/112 , H04N19/137 , H04N19/503 , H04N19/577 , H04N19/61 , H04N19/70 , H04N19/85 , H04N19/98
摘要： An encoder considers a frame representing a picture as comprised of areas. For each area, the encoder decides which of frame-based or field-based orthogonal transformation will be most efficient at reducing spatial redundancy in that area. For each area, the encoder decides which of frame-based or field-based predictive encoding will be most efficient at reducing temporal redundancy in that area. The encoder encodes each area of the picture frame using the most efficient orthogonal transformation technique and using the most efficient predictive encoding technique to produce an encoded signal. A decoder decodes the encoded signal. The encoded signal is recorded on a recording medium, transmitted over a transmission channel, or broadcast.
摘要翻译： 编码器将表示图像的帧视为由区域组成。 对于每个区域，编码器决定哪个基于帧的或基于场的正交变换将最有效地减少该区域中的空间冗余。 对于每个区域，编码器决定哪个基于帧的或基于场的预测编码在减少该区域的时间冗余方面将是最有效的。 编码器使用最有效的正交变换技术对图像帧的每个区域进行编码，并使用最有效的预测编码技术来产生编码信号。 解码器解码编码信号。 编码信号被记录在通过传输信道或广播传输的记录介质上。
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6.发明授权High efficiency encoding and decoding of picture signals and recording medium containing same 失效图像信号的高效率编码和解码以及包含其的记录介质
公开(公告)号：US5666461A
公开(公告)日：1997-09-09
申请号：US454598
申请日：1995-05-30
申请人： Katsuji Igarashi , Jun Yonemitsu , Yoichi Yagasaki , Yasushi Fujinami , Tomoyuki Sato , Motoki Kato , Teruhiko Suzuki
发明人： Katsuji Igarashi , Jun Yonemitsu , Yoichi Yagasaki , Yasushi Fujinami , Tomoyuki Sato , Motoki Kato , Teruhiko Suzuki
CPC分类号： H04N19/00 , H04N19/105 , H04N19/112 , H04N19/137 , H04N19/503 , H04N19/577 , H04N19/61 , H04N19/85 , H04N19/98 , H04N19/70
摘要： An encoder considers a frame representing a picture as comprised of areas. For each area, the encoder decides which of frame-based or field-based orthogonal transformation will be most efficient at reducing spatial redundancy in that area. For each area, the encoder decides which of frame-based or field-based predictive encoding will be most efficient at reducing temporal redundancy in that area. The encoder encodes each area of the picture frame using the most efficient orthogonal transformation technique and using the most efficient predictive encoding technique to produce an encoded signal. A decoder decodes the encoded signal. The encoded signal is recorded on a recording medium, transmitted over a transmission channel, or broadcast.
摘要翻译： 编码器将表示图像的帧视为由区域组成。 对于每个区域，编码器决定哪个基于帧的或基于场的正交变换将最有效地减少该区域中的空间冗余。 对于每个区域，编码器决定哪个基于帧的或基于场的预测编码在减少该区域的时间冗余方面将是最有效的。 编码器使用最有效的正交变换技术对图像帧的每个区域进行编码，并使用最有效的预测编码技术来产生编码信号。 解码器解码编码信号。 编码信号被记录在通过传输信道或广播传输的记录介质上。
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公开(公告)号：US6160849A
公开(公告)日：2000-12-12
申请号：US454068
申请日：1995-05-30
申请人： Katsuji Igarashi , Jun Yonemitsu , Yoichi Yagasaki , Yasushi Fujinami , Tomoyuki Sato , Motoki Kato , Teruhiko Suzuki
发明人： Katsuji Igarashi , Jun Yonemitsu , Yoichi Yagasaki , Yasushi Fujinami , Tomoyuki Sato , Motoki Kato , Teruhiko Suzuki
CPC分类号： H04N19/00 , H04N19/105 , H04N19/112 , H04N19/137 , H04N19/503 , H04N19/577 , H04N19/61 , H04N19/70 , H04N19/85 , H04N19/98
摘要： An encoder considers a frame representing a picture as comprised of areas. For each area, the encoder decides which of frame-based or field-based orthogonal transformation will be most efficient at reducing spatial redundancy in that area. For each area, the encoder decides which of frame-based or field-based predictive encoding will be most efficient at reducing temporal redundancy in that area. The encoder encodes each area of the picture frame using the most efficient orthogonal transformation technique and using the most efficient predictive encoding technique to produce an encoded signal. A decoder decodes the encoded signal. The encoded signal is recorded on a recording medium, transmitted over a transmission channel, or broadcast.
摘要翻译： 编码器将表示图像的帧视为由区域组成。 对于每个区域，编码器决定哪个基于帧的或基于场的正交变换将最有效地减少该区域中的空间冗余。 对于每个区域，编码器决定哪个基于帧的或基于场的预测编码在减少该区域的时间冗余方面将是最有效的。 编码器使用最有效的正交变换技术对图像帧的每个区域进行编码，并使用最有效的预测编码技术来产生编码信号。 解码器解码编码信号。 编码信号被记录在通过传输信道或广播传输的记录介质上。
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8.发明授权Video coding selectable between intra-frame prediction/field-based orthogonal transformation and inter-frame prediction/frame-based orthogonal transformation 失效视频编码可在帧内预测/基于场的正交变换与帧间预测/基于帧的正交变换之间进行选择公开(公告)号：US06324216B1
公开(公告)日：2001-11-27
申请号：US08454076
申请日：1995-05-30
申请人： Katsuji Igarashi , Jun Yonemitsu , Yoichi Yagasaki , Yasushi Fujinami , Tomoyuki Sato , Motoki Kato , Teruhiko Suzuki
发明人： Katsuji Igarashi , Jun Yonemitsu , Yoichi Yagasaki , Yasushi Fujinami , Tomoyuki Sato , Motoki Kato , Teruhiko Suzuki
IPC分类号： H04N712
CPC分类号： H04N19/00 , H04N19/105 , H04N19/112 , H04N19/137 , H04N19/503 , H04N19/577 , H04N19/61 , H04N19/70 , H04N19/85 , H04N19/98
摘要： An encoder considers a frame representing a picture as comprised of areas. For each area, the encoder decides which of frame-based or field-based orthogonal transformation will be most efficient at reducing spatial redundancy in that area. For each area, the encoder decides which of frame-based or field-based predictive encoding will be most efficient at reducing temporal redundancy in that area. The encoder encodes each area of the picture frame using the most efficient orthogonal transformation technique and using the most efficient predictive encoding technique to produce an encoded signal. A decoder decodes the encoded signal. The encoded signal is recorded on a recording medium, transmitted over a transmission channel, or broadcast.
摘要翻译： 编码器将表示图像的帧视为由区域组成。 对于每个区域，编码器决定哪个基于帧的或基于场的正交变换将最有效地减少该区域中的空间冗余。 对于每个区域，编码器决定哪个基于帧的或基于场的预测编码在减少该区域的时间冗余方面将是最有效的。 编码器使用最有效的正交变换技术对图像帧的每个区域进行编码，并使用最有效的预测编码技术来产生编码信号。 解码器解码编码信号。 编码信号被记录在通过传输信道或广播传输的记录介质上。
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公开(公告)号：US5410350A
公开(公告)日：1995-04-25
申请号：US5311
申请日：1993-01-15
申请人： Motoki Kato , Yoichi Yagasaki , Jun Yonemitsu
发明人： Motoki Kato , Yoichi Yagasaki , Jun Yonemitsu
摘要： A motion picture coding and decoding system is provided, which permits high picture quality to be obtained with less information amount than that in case of a system having the sole function of DCT coding, permits reduction of block distortion of reproduced picture and permits coding efficiency increase. One picture frame is divided into a plurality of blocks for block-by-block coding. At this time, discrete cosine transform (DCT) coding and intra-block non-transform coding (NTC) are adaptively switched one over to the other according to the character of pattern. In case of the intra-block non-transform coding, predictive values of block and quantizing width are transmitted. Each block is adaptively selected with sub block of frame construction or sub block of field construction.
摘要翻译： 提供了一种运动图像编码和解码系统，其允许以比具有唯一DCT编码功能的系统的情况更少的信息量获得高图像质量，允许减少再现图像的块失真并且允许编码效率增加 。 一个画面被分成多个用于逐块编码的块。 此时，离散余弦变换（DCT）编码和块内非变换编码（NTC）根据模式的特性自适应地切换到另一个。 在块内非变换编码的情况下，发送块和量化宽度的预测值。 每个块由框架结构的子块或现场构造的子块自适应地选择。
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10.发明授权Moving picture coding/decoding method and apparatus for decoders of various processing capability 失效用于具有各种处理能力的解码器的运动图像编码/解码方法和装置
公开(公告)号：US5946040A
公开(公告)日：1999-08-31
申请号：US341550
申请日：1995-02-08
申请人： Motoki Kato , Yoichi Yagasaki , Jun Yonemitsu
发明人： Motoki Kato , Yoichi Yagasaki , Jun Yonemitsu
CPC分类号： H04N7/54 , H04N19/156 , H04N19/17 , H04N19/46 , H04N19/51 , H04N19/55 , H04N19/61 , H04N19/30
摘要： A moving picture coding apparatus for coding a moving picture and a moving picture decoding apparatus for decoding a coded moving picture are provided. The moving picture coding apparatus is operative to divide a picture signal of a picture frame of N pixels.times.M lines (horizontal N pixels, vertical M lines) to be coded between a first picture portion serving as the inside picture portion having picture frame of N.sub.1 pixels.times.M.sub.1 lines (N.sub.1 .ltoreq.N, M.sub.1 .ltoreq.M) and a second picture portion serving as picture portion outside the first picture portion to divide the first and second picture portions in independent predetermined divisional units comprised of a plurality of pixels, and to add peculiar discrimination codes to headers of divisional units in transmitting coded information of predetermined divisional units belonging to the second picture portion.
摘要翻译： PCT No.PCT / JP94 / 00485 Sec。 371日期1995年2月8日 102（e）日期1995年2月8日PCT 1994年3月25日PCT公布。 出版物WO94 / 22268 日期1994年9月29日提供了一种用于编码运动图像的运动图像编码装置和用于对编码运动图像进行解码的运动图像解码装置。 运动图像编码装置用于将N个像素×M行（水平N像素，垂直M行）的图像帧的图像信号分割为用作具有N1个像素×M1行的图像帧的内部图像部分的第一图像部分 （N1
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