公开(公告)号：US20130336387A1

公开(公告)日：2013-12-19

申请号：US14001841

申请日：2012-03-06

申请人： Naoki Ono ,  Atsushi Shimizu ,  Masaki Kitahara ,  Seisuke Kyochi

发明人： Naoki Ono ,  Atsushi Shimizu ,  Masaki Kitahara ,  Seisuke Kyochi

IPC分类号： H04N7/26

CPC分类号： H04N19/17 ,  H04N19/103 ,  H04N19/137 ,  H04N19/139 ,  H04N19/176 ,  H04N19/517 ,  H04N19/57

摘要： A video encoding device, which uses intra encoding and inter encoding with motion compensation with respect to an input video signal, includes a determination unit which determines whether the input video signal to be encoded corresponds to a stationary region, a region having minute motion, or a region having normal motion, a first encoding unit which performs inter encoding of a motion vector (0, 0) with respect to a region determined as a stationary region by the determination unit, a second encoding unit which performs motion search and inter encoding in a limited search range with respect to a region determined as a region having minute motion by the determination unit, and a third encoding unit which performs motion search and inter encoding in a normal search range with respect to a region determined as a region having normal motion by the determination unit.

摘要翻译： 一种视频编码装置，其使用相对于输入视频信号的运动补偿的帧内编码和帧间编码，包括确定单元，其确定要编码的输入视频信号是否对应于静止区域，具有微小运动的区域，或者 具有正常运动的区域，第一编码单元，其通过所述确定单元相对于被确定为静止区域的区域执行运动矢量（0,0）的编码;第二编码单元，其执行运动搜索和帧间编码 相对于由确定单元确定为具有微小运动的区域的区域的有限搜索范围，以及第三编码单元，其针对被确定为具有正常运动的区域的正常搜索范围进行运动搜索和帧间编码 由确定单元。

公开(公告)号：US09906803B2

公开(公告)日：2018-02-27

申请号：US13978099

申请日：2012-03-05

申请人： Masaki Kitahara ,  Atsushi Shimizu ,  Naoki Ono ,  Seisuke Kyochi

发明人： Masaki Kitahara ,  Atsushi Shimizu ,  Naoki Ono ,  Seisuke Kyochi

IPC分类号： H04N19/14 ,  H04N19/124 ,  H04N19/196 ,  H04N19/593

CPC分类号： H04N19/196 ,  H04N19/124 ,  H04N19/14 ,  H04N19/593

摘要： A quantization control apparatus provided in a video encoding apparatus which utilizes intra slices. The quantization control apparatus includes a similarity computation device that computes similarity between an intra slice region of an encoding target picture and an intra slice region of each of previously-encoded pictures, where the similarity is an index determined such that the closer the images of the two different intra slices, the higher the similarity; a picture selection device that selects a picture having the highest similarity from among the previously-encoded pictures, based on the similarity computed by the similarity computation device; and a quantization step determination device that determines a quantization step used for encoding the encoding target picture, based on encoding information for the picture selected by the picture selection device.

公开(公告)号：US09445089B2

公开(公告)日：2016-09-13

申请号：US14001841

申请日：2012-03-06

申请人： Naoki Ono ,  Atsushi Shimizu ,  Masaki Kitahara ,  Seisuke Kyochi

发明人： Naoki Ono ,  Atsushi Shimizu ,  Masaki Kitahara ,  Seisuke Kyochi

IPC分类号： H04N19/103 ,  H04N19/176 ,  H04N19/517 ,  H04N19/57 ,  H04N19/17 ,  H04N19/139 ,  H04N19/137

CPC分类号： H04N19/17 ,  H04N19/103 ,  H04N19/137 ,  H04N19/139 ,  H04N19/176 ,  H04N19/517 ,  H04N19/57

摘要： A video encoding device, which uses intra encoding and inter encoding with motion compensation with respect to an input video signal, includes a determination unit which determines whether the input video signal to be encoded corresponds to a stationary region, a region having minute motion, or a region having normal motion, a first encoding unit which performs inter encoding of a motion vector (0, 0) with respect to a region determined as a stationary region by the determination unit, a second encoding unit which performs motion search and inter encoding in a limited search range with respect to a region determined as a region having minute motion by the determination unit, and a third encoding unit which performs motion search and inter encoding in a normal search range with respect to a region determined as a region having normal motion by the determination unit.

摘要翻译： 一种视频编码装置，其使用相对于输入视频信号的运动补偿的帧内编码和帧间编码，包括确定单元，其确定要编码的输入视频信号是否对应于静止区域，具有微小运动的区域，或者 具有正常运动的区域，第一编码单元，其通过所述确定单元相对于被确定为静止区域的区域执行运动矢量（0,0）的编码;第二编码单元，其执行运动搜索和帧间编码 相对于由确定单元确定为具有微小运动的区域的区域的有限搜索范围，以及第三编码单元，其针对被确定为具有正常运动的区域的正常搜索范围进行运动搜索和帧间编码 由确定单元。

公开(公告)号：US20130343453A1

公开(公告)日：2013-12-26

申请号：US13978099

申请日：2012-03-05

申请人： Masaki Kitahara ,  Atsushi Shimizu ,  Naoki Ono ,  Seisuke Kyochi

发明人： Masaki Kitahara ,  Atsushi Shimizu ,  Naoki Ono ,  Seisuke Kyochi

IPC分类号： H04N7/26

CPC分类号： H04N19/196 ,  H04N19/124 ,  H04N19/14 ,  H04N19/593

摘要： A quantization control apparatus provided in a video encoding apparatus which utilizes intra slices. The quantization control apparatus includes a similarity computation device that computes similarity between an intra slice region of an encoding target picture and an intra slice region of each of previously-encoded pictures, where the similarity is an index determined such that the closer the images of the two different intra slices, the higher the similarity; a picture selection device that selects a picture having the highest similarity from among the previously-encoded pictures, based on the similarity computed by the similarity computation device; and a quantization step determination device that determines a quantization step used for encoding the encoding target picture, based on encoding information for the picture selected by the picture selection device.

摘要翻译： 一种量化控制装置，其设置在利用片内的视频编码装置中。 量化控制装置包括相似度计算装置，该相似度计算装置计算编码对象图像的片内区域与每个先前编码图像的帧内片区域之间的相似度，其中相似度被确定为使得近似图像 两个不同的片段，相似度越高; 图像选择装置，基于由相似度计算装置计算的相似度，从先前编码的图像中选择具有最高相似度的图像; 以及量化步骤确定装置，其基于由图像选择装置选择的图像的编码信息，确定用于对编码对象图像进行编码的量化步长。

公开(公告)号：US09179149B2

公开(公告)日：2015-11-03

申请号：US13695865

申请日：2011-05-02

申请人： Masaki Kitahara ,  Atsushi Shimizu ,  Naoki Ono

发明人： Masaki Kitahara ,  Atsushi Shimizu ,  Naoki Ono

IPC分类号： H04N7/12 ,  H04N19/117 ,  H04N19/172 ,  H04N19/196 ,  H04N19/15 ,  H04N19/124 ,  H04N19/177 ,  H04N19/192

CPC分类号： H04N19/117 ,  H04N19/124 ,  H04N19/15 ,  H04N19/172 ,  H04N19/177 ,  H04N19/192 ,  H04N19/196 ,  H04N19/198

摘要： A video encoding control method encodes an input video signal by controlling a generated bit rate so a hypothetical buffer in a decoder does not overflow or underflow includes: sequentially encoding each picture in an encoding-order picture group in accordance with a predetermined encoding parameter, the encoding-order picture group including a predetermined number of pictures and being a collection of successive pictures in the order of encoding; calculating a quantization statistic of each picture based on quantization parameter information used to encode each picture each time each picture is encoded, and checking whether the quantization statistic exceeds a predetermined threshold value, and if the quantization statistic exceeds the predetermined threshold value, changing the encoding parameter so the generated bit rate resulting from encoding is reduced and performing re-encoding from a first picture of an encoding-order picture group that is being encoded using the changed encoding parameter.

摘要翻译： 视频编码控制方法通过控制所生成的比特率来对输入视频信号进行编码，因此解码器中的假想缓冲器不会溢出或下溢包括：根据预定编码参数对编码次序图像组中的每个图像进行顺序编码， 编码顺序图像组，其包括预定数量的图像，并且是编码顺序的连续图像的集合; 在每个图像被编码时，基于用于对每个图像进行编码的量化参数信息，并且检查量化统计量是否超过预定阈值，并且如果量化统计量超过预定阈值，则计算每个图像的量化统计量， 参数，使得由编码产生的生成比特率降低，并且使用正在使用改变的编码参数进行编码的编码次序图像组的第一图像进行重新编码。

公开(公告)号：US09179165B2

公开(公告)日：2015-11-03

申请号：US13695700

申请日：2011-04-28

申请人： Masaki Kitahara ,  Atsushi Shimizu ,  Naoki Ono

发明人： Masaki Kitahara ,  Atsushi Shimizu ,  Naoki Ono

IPC分类号： H04N7/26 ,  H04N19/85 ,  H04N19/172 ,  H04N19/15 ,  H04N19/61 ,  H04N19/114 ,  H04N19/117 ,  H04N19/124 ,  H04N19/132 ,  H04N19/152 ,  H04N19/177 ,  H04N19/194 ,  H04N19/80

CPC分类号： H04N19/85 ,  H04N19/114 ,  H04N19/117 ,  H04N19/124 ,  H04N19/132 ,  H04N19/15 ,  H04N19/152 ,  H04N19/172 ,  H04N19/177 ,  H04N19/194 ,  H04N19/61 ,  H04N19/80

摘要： In a video encoding control method of the present invention, each picture is encoded in units of encoding-order picture groups such as GOPs, and when CPB underflow has occurred, an encoding parameter such as a quantization parameter and filter strength of a pre-filter is changed in such a manner that a generated bit rate is reduced, and an encoding-order picture group that is being encoded is re-encoded from its first picture using the changed encoding parameter.

摘要翻译： 在本发明的视频编码控制方法中，每个图像以编码顺序图像组为单位进行编码，例如GOP，当CPB下溢发生时，编码参数如量化参数和预滤波器的滤波强度 以使得生成的比特率减小的方式改变，并且正在被编码的编码顺序图像组使用改变的编码参数从其第一图像重新编码。

公开(公告)号：US09179154B2

公开(公告)日：2015-11-03

申请号：US13695768

申请日：2011-04-20

申请人： Atsushi Shimizu ,  Naoki Ono ,  Masaki Kitahara

发明人： Atsushi Shimizu ,  Naoki Ono ,  Masaki Kitahara

IPC分类号： H04N7/26 ,  H04N19/164 ,  H04N19/172 ,  H04N19/61 ,  H04N19/124 ,  H04N19/132 ,  H04N19/152

CPC分类号： H04N19/164 ,  H04N19/124 ,  H04N19/132 ,  H04N19/152 ,  H04N19/172 ,  H04N19/61

摘要： A video encoding control method for controlling encoding of an input video signal. The method includes the steps of detecting an underflow of a decoder buffer; if the underflow of the decoder buffer has been detected, suppressing an amount of generated code by skipping an encoding target picture or by encoding the encoding target picture so as to produce a minimum amount of generated code; after suppressing the amount of generated code, comparing a current rate of occupancy in the decoder buffer with a predetermined threshold for the rate of occupancy in the decoder buffer; and performing a control for continuously suppressing the amount of code generated for each encoding target image by using the above step of suppressing the amount of generated code until the rate of occupancy in the decoder buffer exceeds the threshold based on a result of the above comparison.

摘要翻译： 一种用于控制输入视频信号的编码的视频编码控制方法。 该方法包括检测解码器缓冲器的下溢的步骤; 如果已经检测到解码器缓冲器的下溢，则通过跳过编码目标图像来抑制所生成的代码量，或通过对编码目标图像进行编码以产生最小量的生成代码; 在抑制所生成的代码量之后，将解码器缓冲器中的当前占用率与解码器缓冲器中占用率的预定阈值进行比较; 基于上述比较的结果，通过使用上述抑制生成代码量的步骤，直到解码器缓冲器的占有率超过阈值，执行连续地抑制针对每个编码对象图像生成的代码量的控制。

公开(公告)号：US20130051456A1

公开(公告)日：2013-02-28

申请号：US13695700

申请日：2011-04-28

申请人： Masaki Kitahara ,  Atsushi Shimizu ,  Naoki Ono

发明人： Masaki Kitahara ,  Atsushi Shimizu ,  Naoki Ono

IPC分类号： H04N7/26

CPC分类号： H04N19/85 ,  H04N19/114 ,  H04N19/117 ,  H04N19/124 ,  H04N19/132 ,  H04N19/15 ,  H04N19/152 ,  H04N19/172 ,  H04N19/177 ,  H04N19/194 ,  H04N19/61 ,  H04N19/80

摘要： In a video encoding control method of the present invention, each picture is encoded in units of encoding-order picture groups such as GOPs, and when CPB underflow has occurred, an encoding parameter such as a quantization parameter and filter strength of a pre-filter is changed in such a manner that a generated bit rate is reduced, and an encoding-order picture group that is being encoded is re-encoded from its first picture using the changed encoding parameter.

摘要翻译： 在本发明的视频编码控制方法中，每个图像以编码顺序图像组为单位进行编码，例如GOP，当CPB下溢发生时，编码参数如量化参数和预滤波器的滤波强度 以使得生成的比特率减小的方式改变，并且正在被编码的编码顺序图像组使用改变的编码参数从其第一图像重新编码。

公开(公告)号：US09131236B2

公开(公告)日：2015-09-08

申请号：US13696272

申请日：2011-04-22

申请人： Atsushi Shimizu ,  Naoki Ono ,  Masaki Kitahara

发明人： Atsushi Shimizu ,  Naoki Ono ,  Masaki Kitahara

IPC分类号： H04N7/26 ,  H04N19/142 ,  H04N19/159 ,  H04N19/172 ,  H04N19/115 ,  H04N19/61 ,  H04N19/14 ,  H04N19/124

CPC分类号： H04N19/142 ,  H04N19/115 ,  H04N19/124 ,  H04N19/14 ,  H04N19/159 ,  H04N19/172 ,  H04N19/61

摘要： A code amount control method used in a video encoding method for performing code amount control by estimating a generated code amount for an encoding target picture. The control method includes steps of computing a feature value of the encoding target picture and stores the value into a storage device; extracting a feature value of a previously-encoded picture stored in the storage device and used for generated code amount estimation; comparing the feature values of the encoding target picture and the previously-encoded picture; and a step performed according to a result of the comparison. If it is determined that difference between both feature values is larger than a predetermined criterion value, the amount of code generated for the encoding target picture is estimated using no result of encoding of the previously-encoded picture, and otherwise the relevant generated code amount is estimated based on a result of the encoding.

摘要翻译： 一种在视频编码方法中使用的代码量控制方法，用于通过估计用于编码目标图片的生成代码量来执行代码量控制。 控制方法包括计算编码对象图像的特征值并将该值存储到存储装置中的步骤; 提取存储在存储装置中并用于生成代码量估计的先前编码图像的特征值; 比较编码对象图像和先前编码图像的特征值; 以及根据比较的结果执行的步骤。 如果确定两个特征值之间的差异大于预定标准值，则使用没有对先前编码的图像进行编码的结果来估计针对编码目标图像生成的代码量，否则相关的生成代码量为 基于编码的结果估计。

公开(公告)号：US20130051460A1

公开(公告)日：2013-02-28

申请号：US13696272

申请日：2011-04-22

申请人： Atsushi Shimizu ,  Naoki Ono ,  Masaki Kitahara

发明人： Atsushi Shimizu ,  Naoki Ono ,  Masaki Kitahara

IPC分类号： H04N7/26

CPC分类号： H04N19/142 ,  H04N19/115 ,  H04N19/124 ,  H04N19/14 ,  H04N19/159 ,  H04N19/172 ,  H04N19/61

摘要： A code amount control method used in a video encoding method for performing code amount control by estimating a generated code amount for an encoding target picture. The control method includes steps of computing a feature value of the encoding target picture and stores the value into a storage device; extracting a feature value of a previously-encoded picture stored in the storage device and used for generated code amount estimation; comparing the feature values of the encoding target picture and the previously-encoded picture; and a step performed according to a result of the comparison. If it is determined that difference between both feature values is larger than a predetermined criterion value, the amount of code generated for the encoding target picture is estimated using no result of encoding of the previously-encoded picture, and otherwise the relevant generated code amount is estimated based on a result of the encoding.

摘要翻译： 一种在视频编码方法中使用的代码量控制方法，用于通过估计用于编码目标图片的生成代码量来执行代码量控制。 控制方法包括计算编码对象图像的特征值并将该值存储到存储装置中的步骤; 提取存储在存储装置中并用于生成代码量估计的先前编码图像的特征值; 比较编码对象图像和先前编码图像的特征值; 以及根据比较的结果执行的步骤。 如果确定两个特征值之间的差异大于预定标准值，则使用没有对先前编码的图像进行编码的结果来估计针对编码目标图像生成的代码量，否则相关的生成代码量为 基于编码的结果估计。