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1. 发明授权

US09179149B2 Video encoding control method, video encoding apparatus, and video encoding program 有权
标题翻译：视频编码控制方法，视频编码装置和视频编码程序
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。

2. 发明申请

US20130336387A1 VIDEO ENCODING DEVICE, VIDEO ENCODING METHOD AND VIDEO ENCODING PROGRAM 有权
标题翻译：视频编码设备，视频编码方法和视频编码程序
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。

3. 发明授权

US09179165B2 Video encoding control method, video encoding apparatus and video encoding program 有权
标题翻译：视频编码控制方法，视频编码装置和视频编码程序
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。

4. 发明授权

US09906803B2 Quantization control apparatus and method, and quantization control program 有权
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.

5. 发明授权

US09179154B2 Video encoding control method and apparatus 有权
标题翻译：视频编码控制方法及装置
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。

6. 发明申请

US20130051456A1 VIDEO ENCODING CONTROL METHOD, VIDEO ENCODING APPARATUS AND VIDEO ENCODING PROGRAM 有权
标题翻译：视频编码控制方法，视频编码设备和视频编码程序
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。

7. 发明授权

US09445089B2 Video encoding device, video encoding method and video encoding program 有权
标题翻译：视频编码设备，视频编码方式和视频编码程序
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。

8. 发明申请

US20130343453A1 QUANTIZATION CONTROL APPARATUS AND METHOD, AND QUANTIZATION CONTROL PROGRAM 有权
标题翻译：量化控制装置和方法以及量化控制程序
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。

9. 发明申请

US20130058396A1 VIDEO ENCODING CONTROL METHOD AND APPARATUS 有权
标题翻译：视频编码控制方法和装置
公开(公告)号：US20130058396A1
公开(公告)日：2013-03-07
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
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。

10. 发明申请

US20130051458A1 VIDEO ENCODING CONTROL METHOD, VIDEO ENCODING APPARATUS, AND VIDEO ENCODING PROGRAM 有权
标题翻译：视频编码控制方法，视频编码设备和视频编码程序
公开(公告)号：US20130051458A1
公开(公告)日：2013-02-28
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： H04N7/26
CPC分类号： H04N19/117 , H04N19/124 , H04N19/15 , H04N19/172 , H04N19/177 , H04N19/192 , H04N19/196 , H04N19/198
摘要： Video encoding is realized with small deterioration in image quality while suppressing underflow of a coded picture buffer (CPB) and with a smaller calculation amount than conventional 2-pass encoding. A video encoding control method which encodes an input video signal by controlling a generated bit rate so that a hypothetical buffer in a decoder does not fail includes: a step of 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; a step of 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 or not the quantization statistic exceeds a predetermined threshold value, and a step of if the quantization statistic exceeds the predetermined threshold value, changing the encoding parameter so that 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：在抑制编码图像缓冲器（CPB）的下溢并且以比传统的2遍编码更小的计算量的情况下，以较小的图像质量劣化实现视频编码。一种视频编码控制方法，其通过控制生成的比特率来对输入视频信号进行编码，使得解码器中的假想缓冲器不失败包括：根据预定编码对编码次序图像组中的每个图像进行顺序编码的步骤参数，编码顺序图像组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的步骤，则计算每个图像的量化统计量的步骤预定阈值，改变编码参数，使得由编码产生的生成比特率减小，并且使用改变后的编码参数从编码顺序图像组的第一图像执行重新编码。

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