公开(公告)号：US20160330464A1

公开(公告)日：2016-11-10

申请号：US15107689

申请日：2015-01-27

Applicant: NEC Corporation

Inventor： Kensuke SHIMOFURE ,  Naoya TSUJI ,  Takayuki ISHIDA ,  Suguru NAGAYAMA ,  Keiichi CHONO

IPC: H04N19/42 ,  H04N19/40 ,  H04N19/176 ,  H04N19/70 ,  H04N19/156

CPC classification number: H04N19/42 ,  H04N19/103 ,  H04N19/156 ,  H04N19/157 ,  H04N19/176 ,  H04N19/18 ,  H04N19/194 ,  H04N19/40 ,  H04N19/70

Abstract: A video encoding device includes: a first video encoding section 11 for encoding an input image to generate first coded data; a buffer 12 for storing the input image; a coded data transcoding/merging section 13 for transcoding and then merging the first coded data generated by the first video encoding section 11, to generate second coded data; and a second video encoding section 14 for estimating a syntax value for encoding the input image stored in the buffer 12 based on the second coded data supplied from the coded data transcoding/merging section 13, to generate a bitstream. The first video encoding section 11 has a function of handling a first encoding process included in a second encoding process handled by the second video encoding section 14. The coded data transcoding/merging section 13, in the case where a predetermined condition is met, merges frequency transform/quantization blocks in the second encoding process.

Abstract translation: 视频编码装置包括：第一图像编码部分11，用于对输入图像进行编码以产生第一编码数据; 用于存储输入图像的缓冲器12; 编码数据代码转换/合并部分13，用于对由第一视频编码部分11产生的第一编码数据进行代码转换，然后合并，以产生第二编码数据; 以及第二视频编码部分14，用于基于从编码数据代码转换/合并部分13提供的第二编码数据估计用于对存储在缓冲器12中的输入图像进行编码的语法值，以生成比特流。 第一视频编码部分11具有处理由第二视频编码部分14处理的第二编码处理中包括的第一编码处理的功能。编码数据代码转换/合并部分13在满足预定条件的情况下合并 第二编码处理中的频率变换/量化块。

公开(公告)号：US20180027285A1

公开(公告)日：2018-01-25

申请号：US15550043

申请日：2016-02-18

Applicant: NEC CORPORATION

Inventor： Kensuke SHIMOFURE ,  Yasuhisa NAKATA

IPC: H04N21/434 ,  H04N5/44

CPC classification number: H04N21/4341 ,  H04N5/4401 ,  H04N21/43 ,  H04N21/4302 ,  H04N21/434 ,  H04N21/6112 ,  H04N21/64322

Abstract: [Problem] To provide: a decoding device that decodes and replays, at a suitable timing, sequentially transmitted information; a reception device; a transmission device; a transmission/reception system; a decoding method; and a storage medium having a decoding program stored therein. [Solution] A decoding unit 21 that decodes packets sent from a transmission device 10. A decoding timing determination unit 22 determines the timing that the decoding unit 21 decodes packets, on the basis of adjustment information that is included in the packet and corresponds to time adjustment for making Coordinated Universal Time approach Universal Time. A packet includes processing interval information indicating the processing interval for an access unit being a set including the packet. The decoding timing determination unit 22 determines that packets constituting each access unit will be sequentially decoded at an interval corresponding to the interval indicated by the processing interval information, if the adjustment information indicates that a time adjustment will occur.

公开(公告)号：US20160301941A1

公开(公告)日：2016-10-13

申请号：US14772287

申请日：2014-07-25

Applicant: NEC CORPORATION

Inventor： Keiichi CHONO ,  Seiya SHIBATA ,  Takayuki ISHIDA ,  Kensuke SHIMOFURE

IPC: H04N19/40 ,  H04N19/146

CPC classification number: H04N19/40 ,  H04N19/103 ,  H04N19/146 ,  H04N19/157 ,  H04N19/176 ,  H04N19/194

Abstract: A video encoding device includes: a first video encoding section 11 for encoding an input image to generate first coded data; a buffer 12 for storing the input image; a coded data transcoding/merging section 13 for transcoding and then merging the first coded data generated by the first video encoding section 11, to generate second coded data; and a second video encoding section 14 for estimating a syntax value for encoding the input image stored in the buffer 12 based on the second coded data supplied from the coded data transcoding/merging section 13, to generate a bitstream. The first video encoding section 11 has a function of handling a first encoding process included in a second encoding process handled by the second video encoding section 14. The coded data transcoding/merging section 13 transcodes coded data by the first encoding process to coded data corresponding to the second encoding process.

Abstract translation: 视频编码装置包括：第一图像编码部分11，用于对输入图像进行编码以产生第一编码数据; 用于存储输入图像的缓冲器12; 编码数据代码转换/合并部分13，用于对由第一视频编码部分11产生的第一编码数据进行代码转换，然后合并，以产生第二编码数据; 以及第二视频编码部分14，用于基于从编码数据代码转换/合并部分13提供的第二编码数据估计用于对存储在缓冲器12中的输入图像进行编码的语法值，以生成比特流。 第一视频编码部分11具有处理包括在由第二视频编码部分14处理的第二编码处理中的第一编码处理的功能。编码数据代码转换/合并部分13通过第一编码处理将编码数据转码成对应于编码数据 到第二编码过程。

公开(公告)号：US20200221160A1

公开(公告)日：2020-07-09

申请号：US16824793

申请日：2020-03-20

Applicant: NEC CORPORATION

Inventor： Kensuke SHIMOFURE ,  Yasuhisa NAKATA

IPC: H04N21/434 ,  H04N21/43 ,  H04N21/845 ,  H04N21/643 ,  H04N21/61

Abstract: [Problem] To provide: a decoding device that decodes and replays, in a suitable order, sequentially transmitted information; a reception device; a transmission/reception system; a decoding method; and a storage medium having the decoding program stored therein. [Solution] A decoding unit 21 that decodes packets sent from a transmission device 10. A decoding order determination unit 22 determines the order of packets to be decoded by the decoding unit 21, on the basis of adjustment information that is included in the packet and corresponds to a time adjustment for making Coordinated Universal Time approach Universal Time. The packets include order information indicating the order in the same IP data flow. The decoding order determination unit 22 determines, on the basis of the order information, the order of packets to be decoded by the decoding unit 21, if the adjustment information indicates that a time adjustment will occur.

公开(公告)号：US20200059688A1

公开(公告)日：2020-02-20

申请号：US16662135

申请日：2019-10-24

Applicant: NEC CORPORATION

Inventor： Kensuke SHIMOFURE ,  Yasuhisa NAKATA

IPC: H04N21/434 ,  H04N5/44 ,  H04N21/643 ,  H04N21/61 ,  H04N21/43

Abstract: A method for receiving data, the method includes receiving a plurality of assets, each asset including a Media Processing Unit (MPU); receiving a packet identification for each asset among the plurality of assets via respective Moving Picture Experts Group (MPEG) Media Transport Protocol (MMTP) packets; receiving a time stamp information referencing UTC (Coordinated Universal Time) in the MPU, the time stamp information representing a presentation time of a first access unit in presentation order in the MPU; and receiving a leap second insertion flag indicating when a leap second will be inserted, and receiving a leap second deletion flag indicating when a leap second will be deleted, the leap second insertion flag and the leap second deletion flag indicating a presence of a leap second event, wherein the first access unit in the MPU is presented at the time signaled in reference to the time stamp information.

公开(公告)号：US20160345013A1

公开(公告)日：2016-11-24

申请号：US15111085

申请日：2015-01-29

Applicant: NEC CORPORATION

Inventor： Takayuki ISHIDA ,  Kensuke SHIMOFURE ,  Naoya TSUJI ,  Suguru NAGAYAMA ,  Keiichi CHONO

IPC: H04N19/167 ,  H04N19/176 ,  H04N19/513 ,  H04N19/40

CPC classification number: H04N19/167 ,  H04N19/176 ,  H04N19/40 ,  H04N19/436 ,  H04N19/513

Abstract: A video encoding device includes: first video encoding means for encoding an input image to generate first coded data; a buffer for storing the input image; coded data transcoding means for transcoding the first coded data generated by the first video encoding means, to generate second coded data; and second video encoding means for generating a prediction signal based on the second coded data supplied from the coded data transcoding means. The first video encoding means includes: dividing means for dividing the input image into a plurality of image areas; and at least one encoding means corresponding to the image areas each of which is made up of a plurality of blocks, and for performing encoding in units of blocks. The encoding means also encodes a block that is included in an image area adjacent with a dividing line in between and is located near the dividing line.

Abstract translation: 视频编码装置包括：第一视频编码装置，用于对输入图像进行编码以产生第一编码数据; 用于存储输入图像的缓冲器; 编码数据转码装置，用于对由第一视频编码装置生成的第一编码数据进行代码转换，以产生第二编码数据; 以及第二视频编码装置，用于根据从编码数据代码转换装置提供的第二编码数据产生预测信号。 第一视频编码装置包括：分割装置，用于将输入图像分割成多个图像区域; 以及对应于由多个块组成的图像区域的至少一个编码装置，并且用于以块为单位进行编码。 编码装置还对包含在与分割线相邻的图像区域中的块进行编码并位于分割线附近。

公开(公告)号：US20180332337A1

公开(公告)日：2018-11-15

申请号：US16031736

申请日：2018-07-10

Applicant: NEC CORPORATION

Inventor： Kensuke SHIMOFURE ,  Yasuhisa NAKATA

IPC: H04N21/434 ,  H04N21/43 ,  H04N21/61 ,  H04N5/44 ,  H04N21/643

CPC classification number: H04N21/4341 ,  H04N5/4401 ,  H04N21/43 ,  H04N21/4302 ,  H04N21/434 ,  H04N21/6112 ,  H04N21/64322

Abstract: A method for receiving data, the method includes receiving a plurality of assets, each asset including a Media Processing Unit (MPU); receiving a packet identification for each asset among the plurality of assets via respective Moving Picture Experts Group (MPEG) Media Transport Protocol (MMTP) packets; receiving a time stamp information referencing UTC (Coordinated Universal Time) in the MPU, the time stamp information representing a presentation time of a first access unit in presentation order in the MPU; and receiving a leap second insertion flag indicating when a leap second will be inserted, and receiving a leap second deletion flag indicating when a leap second will be deleted, the leap second insertion flag and the leap second deletion flag indicating a presence of a leap second event, wherein the first access unit in the MPU is presented at the time signaled in reference to the time stamp information.

公开(公告)号：US20180014060A1

公开(公告)日：2018-01-11

申请号：US15550054

申请日：2016-02-18

Applicant: NEC Corporation

Inventor： Kensuke SHIMOFURE ,  Yasuhisa NAKATA

IPC: H04N21/434 ,  H04N21/61 ,  H04N21/643 ,  H04N21/845

CPC classification number: H04N21/434 ,  H04N21/43 ,  H04N21/4302 ,  H04N21/4341 ,  H04N21/6112 ,  H04N21/64322 ,  H04N21/8456

Abstract: [Problem] To provide: a decoding device that decodes and replays, in a suitable order, sequentially transmitted information; a reception device; a transmission/reception system; a decoding method; and a storage medium having the decoding program stored therein. [Solution] A decoding unit 21 that decodes packets sent from a transmission device 10. A decoding order determination unit 22 determines the order of packets to be decoded by the decoding unit 21, on the basis of adjustment information that is included in the packet and corresponds to a time adjustment for making Coordinated Universal Time approach Universal Time. The packets include order information indicating the order in the same IP data flow. The decoding order determination unit 22 determines, on the basis of the order information, the order of packets to be decoded by the decoding unit 21, if the adjustment information indicates that a time adjustment will occur.

公开(公告)号：US20160337652A1

公开(公告)日：2016-11-17

申请号：US15111239

申请日：2015-01-22

Applicant: NEC Corporation

Inventor： Naoya TSUJI ,  Takayuki ISHIDA ,  Suguru NAGAYAMA ,  Kensuke SHIMOFURE ,  Keiichi CHONO

IPC: H04N19/40 ,  H04N19/159 ,  H04N19/91 ,  H04N19/11

CPC classification number: H04N19/40 ,  H04N19/11 ,  H04N19/147 ,  H04N19/159 ,  H04N19/176 ,  H04N19/70 ,  H04N19/91 ,  H04N19/96

Abstract: A video encoding device includes a coded data transcoding section 131 for transcoding first coded data generated by a first video encoding section 11 to generate second coded data, wherein the coded data transcoding section 131 includes: a prediction mode adding section 1312 for generating intra prediction modes unusable by the first video encoding section 11 and usable by a second video encoding section 14; and a prediction mode selecting section 1313 for evaluating the prediction modes generated by the prediction mode adding section 1312 and, based on the evaluation results, selecting a prediction mode used by the second video encoding section 14.

Abstract translation: 视频编码装置包括编码数据代码转换部分131，用于对由第一视频编码部分11产生的第一编码数据进行代码转换，以产生第二编码数据，其中编码数据代码转换部分131包括：预测模式加法部分1312，用于产生帧内预测模式 可由第一视频编码部分11使用并且可被第二视频编码部分14使用; 以及预测模式选择部分1313，用于评估由预测模式添加部分1312生成的预测模式，并且基于评估结果，选择由第二视频编码部分14使用的预测模式。

公开(公告)号：US20160323579A1

公开(公告)日：2016-11-03

申请号：US15107978

申请日：2015-02-04

Applicant: NEC CORPORATION

Inventor： Suguru NAGAYAMA ,  Keiichi CHONO ,  Takayuki ISHIDA ,  Naoya TSUJI ,  Kensuke SHIMOFURE

IPC: H04N19/126 ,  H04N19/176 ,  H04N19/154

CPC classification number: H04N19/126 ,  H04N19/136 ,  H04N19/154 ,  H04N19/176 ,  H04N19/426

Abstract: A video encoding device includes control means 12 for supplying parameters used in the quantization process to the quantizing means 11, wherein the quantizing means 11 includes: a two-dimensional table 13 storing result values of calculation which is a part of the quantization process, each of the result values is calculated by using a value based on a quantization parameter and a quantization weighting coefficient used for visual image quality control; and computing means 14 for inputting a result value corresponding to two parameters supplied from the control means 12, and generating the quantization coefficient by using the input result value.

Abstract translation: 视频编码装置包括用于将量化处理中使用的参数提供给量化装置11的控制装置12，其中量化装置11包括：存储作为量化处理的一部分的计算结果值的二维表13， 通过使用基于用于视觉图像质量控制的量化参数和量化加权系数的值来计算结果值; 以及计算装置14，用于输入与从控制装置12提供的两个参数对应的结果值，并通过使用输入结果值产生量化系数。