公开(公告)号：US20160094862A1

公开(公告)日：2016-03-31

申请号：US14888505

申请日：2014-04-11

Applicant: NEC CORPORATION

Inventor： Hirofumi AOKI

IPC: H04N21/234 ,  H04N21/236 ,  H04N21/2383 ,  H04N21/24

CPC classification number: H04N21/23406 ,  H04N19/127 ,  H04N19/152 ,  H04N19/172 ,  H04N19/423 ,  H04N19/46 ,  H04N21/23605 ,  H04N21/23608 ,  H04N21/2383 ,  H04N21/2405

Abstract: A time series data encoding apparatus includes a time series data encoding means 11 for compressing and encoding time series data thereby to generate encoded bit streams, a virtual buffer 12 for calculating a transition of the amount of data accumulated in a buffer in a virtual decoder defined according to an encoding system, a buffer usage analyzing means 13 for analyzing the transition of the amount of accumulated data thereby to reset parameters indicating a size of the buffer and the amount of accumulated data in the buffer at a predetermined time, and a multiplexing means 14 for multiplexing the encoded bit streams generated by the time series data encoding means 11 and the parameters reset by the buffer usage analyzing means 13.

Abstract translation: 时间序列数据编码装置包括时间序列数据编码装置11，用于压缩和编码时间序列数据从而产生编码比特流;虚拟缓冲器12，用于计算在定义的虚拟解码器中的缓冲器中累积的数据量的转变 根据编码系统，缓冲器使用分析装置13用于分析累积数据量的转变，从而在预定时间复位指示缓冲器的大小和累积数据量的参数，以及多路复用装置 14，用于复用由时间序列数据编码装置11产生的编码比特流和由缓冲器使用分析装置13复位的参数。

公开(公告)号：US20160057442A1

公开(公告)日：2016-02-25

申请号：US14931271

申请日：2015-11-03

Applicant: NEC CORPORATION

Inventor： Keiichi CHONO ,  Yuzo SENDA ,  Junji TAJIME ,  Hirofumi AOKI ,  Kenta SENZAKI

IPC: H04N19/44 ,  H04N19/172 ,  H04N19/91 ,  H04N19/182

CPC classification number: H04N19/44 ,  H04N19/00781 ,  H04N19/12 ,  H04N19/156 ,  H04N19/17 ,  H04N19/172 ,  H04N19/176 ,  H04N19/182 ,  H04N19/186 ,  H04N19/46 ,  H04N19/60 ,  H04N19/61 ,  H04N19/91

Abstract: A video encoding device includes: pixel bit length increasing means for increasing a pixel bit length of an input image based on pixel bit length increase information; transform means for transforming output data of the pixel bit length increasing means; entropy encoding means for entropy-encoding output data of the transform means; non-compression encoding means for non-compression-encoding input data; multiplexed data selection means for selecting output data of the entropy encoding means or output data of the non-compression encoding means; and multiplexing means for multiplexing the pixel bit length increase information in a bitstream, wherein a pixel bit length of an image corresponding to the output data of the entropy encoding means and a pixel bit length of an image corresponding to the output data of the non-compression encoding means are different from each other.

公开(公告)号：US20220191506A1

公开(公告)日：2022-06-16

申请号：US17685579

申请日：2022-03-03

Applicant: NEC Corporation

Inventor： Kenta SENZAKI ,  Yuzo SENDA ,  Keiichi CHONO ,  Hirofumi AOKI

IPC: H04N19/139 ,  H04N19/61 ,  H04N19/109 ,  H04N19/119 ,  H04N19/176 ,  H04N19/46 ,  H04N19/51 ,  H04N19/147 ,  H04N19/70

Abstract: A video encoding device includes encoding control means 11 for controlling an inter-PU partition type of a CU to be encoded, based on the maximum number (PA) of motion vectors allowed for an image block having a predetermined area and the number (PB) of motion vectors of an encoded image block contained in the image block having the predetermined area. A video decoding device includes decoding control means for controlling an inter-PU partition type of a CU to be decoded, based on the maximum number (PA) of motion vectors allowed for an image block having a predetermined area and the number (PB) of motion vectors of a decoded image block contained in the image block having the predetermined area.

公开(公告)号：US20160029025A1

公开(公告)日：2016-01-28

申请号：US14877453

申请日：2015-10-07

Applicant: NEC CORPORATION

Inventor： Kenta SENZAKI ,  Yuzo SENDA ,  Keiichi CHONO ,  Hirofumi AOKI

IPC: H04N19/147 ,  H04N19/44 ,  H04N19/46

CPC classification number: H04N19/147 ,  H04N19/109 ,  H04N19/119 ,  H04N19/157 ,  H04N19/176 ,  H04N19/44 ,  H04N19/46 ,  H04N19/503 ,  H04N19/61 ,  H04N19/65 ,  H04N19/70 ,  H04N19/91

Abstract: A video decoding device for decoding video using inter prediction comprises decoding control unit setting partition type of CU to be decoded to a type other than N×N which indicates a size of PU obtained by dividing a CU to be decoded is a minimum size, when a prediction mode of the CU to be decoded is an inter prediction and a size of the CU to be decoded is equal to a minimum CU size.

Abstract translation: 一种用于使用帧间预测解码视频的视频解码装置包括解码控制单元将要解码的CU的分区类型设置为除了N×N之外的类型，其指示通过将要解码的CU划分为最小大小而获得的PU的大小， 要解码的CU的预测模式是帧间预测，并且要解码的CU的大小等于最小CU大小。

公开(公告)号：US20210063565A1

公开(公告)日：2021-03-04

申请号：US16958339

申请日：2017-12-28

Applicant: NEC CORPORATION

Inventor： Shreya SHARMA ,  Yuzo SENDA ,  Hirofumi AOKI ,  Kenta SENZAKI

IPC: G01S13/90 ,  G06N20/10 ,  G01S7/41 ,  G01S7/40

Abstract: An object is to provide an image processing apparatus capable of appropriately distinguishing various object types. An image processing apparatus (1C) comprising: detector means (11) for detecting objects in an input SAR image and generating object chips; projection calculator means (12) for calculating projection information of each object using SAR geometry; feature learner means (14) for learning, for each object, a relation between an object chip and its projection information, and thereby generating learnt features of object chips; and classifier means (15) for classifying object chips into classes based on the learnt features of object chips.

公开(公告)号：US20200265562A1

公开(公告)日：2020-08-20

申请号：US16644560

申请日：2017-09-08

Applicant: NEC Corporation

Inventor： Madhuri Mahendra NAGARE ,  Hirofumi AOKI ,  Kazutoshi SAGI

IPC: G06T5/00 ,  G06T7/12

Abstract: An image processing device which is capable of accurately detect pixels covered by cloud shadows and remove effects of the cloud shadows in an images are provided. The device includes: a cloud transmittance calculation unit that calculates transmittance of the one or more clouds in an input image, for each pixel; a cloud height estimation unit that determines estimation of a height from the ground to each cloud in the input image to detect position of corresponding one or more shadows; an attenuation factor estimation unit that calculates attenuation factors for the direct sun irradiance by applying an averaging filter to the cloud transmittance calculated; and a shadow removal unit that corrects pixels affected by the one or more shadows, based on a physical model of a cloud shadow formation by employing the attenuation factors calculated and the position, and outputs an image which includes the pixels corrected.

公开(公告)号：US20240163448A1

公开(公告)日：2024-05-16

申请号：US18420036

申请日：2024-01-23

Applicant: NEC Corporation

Inventor： Kenta SENZAKI ,  Yuzo SENDA ,  Keiichi CHONO ,  Hirofumi AOKI

IPC: H04N19/147 ,  H04N19/103 ,  H04N19/109 ,  H04N19/119 ,  H04N19/157 ,  H04N19/176 ,  H04N19/44 ,  H04N19/46 ,  H04N19/503 ,  H04N19/61 ,  H04N19/70

CPC classification number: H04N19/147 ,  H04N19/103 ,  H04N19/109 ,  H04N19/119 ,  H04N19/157 ,  H04N19/176 ,  H04N19/44 ,  H04N19/46 ,  H04N19/503 ,  H04N19/61 ,  H04N19/70 ,  H04N19/91

Abstract: In a video decoding device for decoding video using inter prediction, decoding control means sets capable values of an inter-PU (Prediction Unit) partition type of a CU (Coding Unit) to be decoded, based on whether or not a size of the CU to be decoded is equal to a minimum inter-PU size.

公开(公告)号：US20210029363A1

公开(公告)日：2021-01-28

申请号：US17066136

申请日：2020-10-08

Applicant: NEC CORPORATION

Inventor： Kenta SENZAKI ,  Yuzo SENDA ,  Keiichi CHONO ,  Hirofumi AOKI

IPC: H04N19/147 ,  H04N19/503 ,  H04N19/176 ,  H04N19/70 ,  H04N19/119 ,  H04N19/46 ,  H04N19/61 ,  H04N19/109 ,  H04N19/157 ,  H04N19/44

Abstract: A video encoding device for encoding video using inter prediction includes encoding control means 11 for controlling an inter-PU partition type of a CU to be encoded, based on a minimum inter-PU size (PA) and a CU size (PB) of the CU to be encoded. A video decoding device includes decoding control means for controlling an inter-PU partition of a CU to be decoded, based on the minimum inter-PU size (PA) and the size (PB) of the CU to be decoded.

公开(公告)号：US20200322638A1

公开(公告)日：2020-10-08

申请号：US16905811

申请日：2020-06-18

Applicant: NEC Corporation

Inventor： Hirofumi AOKI ,  Keiichi CHONO ,  Masato TSUKADA

IPC: H04N19/68 ,  H04N19/50 ,  H04N19/159 ,  H04N19/196 ,  H04N19/70 ,  H04N19/105 ,  H04N19/107 ,  H04N19/167 ,  H04N19/174 ,  H04N19/44

Abstract: A video decoding device includes a demultiplexer which demultiplexes a video bitstream including video data of an encoded slice, Supplemental-Enhancement-Information having first information indicating a leading picture in gradual refresh, and Supplemental-Enhancement-Information having second information indicating segments where a refresh has completed in a current picture; an extractor which extracts the second information from a message which is part of the demultiplexed Supplemental-Enhancement-Information; and a video decoder which decodes image data from the demultiplexed video bitstream by using at least inter prediction, wherein the video decoder starts decoding based on the leading picture in gradual refresh.

公开(公告)号：US20170054992A1

公开(公告)日：2017-02-23

申请号：US15344635

申请日：2016-11-07

Applicant: NEC CORPORATION

Inventor： Keiichi CHONO ,  Yuzo SENDA ,  Junji TAJIME ,  Hirofumi AOKI ,  Kenta SENZAKI

IPC: H04N19/44 ,  H04N19/91 ,  H04N19/182 ,  H04N19/61

CPC classification number: H04N19/44 ,  H04N19/00781 ,  H04N19/12 ,  H04N19/156 ,  H04N19/17 ,  H04N19/172 ,  H04N19/176 ,  H04N19/182 ,  H04N19/186 ,  H04N19/46 ,  H04N19/60 ,  H04N19/61 ,  H04N19/91

Abstract: A video encoding device includes: pixel bit length increasing means for increasing a pixel bit length of an input image based on pixel bit length increase information; transform means for transforming output data of the pixel bit length increasing means; entropy encoding means for entropy-encoding output data of the transform means; non-compression encoding means for non-compression-encoding input data; multiplexed data selection means for selecting output data of the entropy encoding means or output data of the non-compression encoding means; and multiplexing means for multiplexing the pixel bit length increase information in a bitstream, wherein a pixel bit length of an image corresponding to the output data of the entropy encoding means and a pixel bit length of an image corresponding to the output data of the non-compression encoding means are different from each other.

Abstract translation: 视频编码装置包括：像素比特长度增加装置，用于基于像素比特长度增加信息增加输入图像的像素比特长度; 变换装置，用于变换像素位长度增加装置的输出数据; 熵编码装置，用于对变换装置的输出数据进行熵编码; 用于非压缩编码输入数据的非压缩编码装置; 多路复用数据选择装置，用于选择熵编码装置的输出数据或输出非压缩编码装置的数据; 以及复用装置，用于将比特流中的像素比特长度增加信息进行多路复用，其中与熵编码装置的输出数据相对应的图像的像素比特长度和与非熵编码装置的输出数据相对应的图像的像素比特长度， 压缩编码装置彼此不同。