公开(公告)号：US20220210405A1

公开(公告)日：2022-06-30

申请号：US17696514

申请日：2022-03-16

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Ki-ho CHOI ,  Min-woo PARK ,  Elena ALSHINA ,  Chan-yul KIM ,  In-kwon CHOI

IPC: H04N19/105 ,  H04N19/176 ,  H04N19/122 ,  H04N19/13 ,  H04N19/129 ,  H04N19/44

Abstract: Provided is a method of decoding a video according to an embodiment, the method including determining at least one processing block for splitting the video; determining an order of determining at least one largest coding unit in the at least one processing block; determining at least one largest coding unit on the basis of the determined order; and decoding the determined at least one largest coding unit, wherein the order is one of a plurality of orders for determining a largest coding unit.

公开(公告)号：US20210266561A1

公开(公告)日：2021-08-26

申请号：US17255599

申请日：2018-06-26

Applicant: SAMSUNG ELECTRONICS CO., LTD

Inventor： Seung-soo JEONG ,  Chan-yul KIM ,  Min-soo PARK ,  Min-woo PARK ,  Ki-ho CHOI ,  Na-rae CHOI ,  Woong-il CHOI ,  Anish TAMSE ,  Yin-ji PIAO

IPC: H04N19/139 ,  H04N19/176 ,  H04N19/513 ,  H04N19/115

Abstract: A method of decoding motion information includes determining a coding factor value of a differential motion vector of a current block, when adaptive encoding has been applied to the differential motion vector, determining a first result value generated by applying the adaptive encoding to the differential motion vector, based on information included in the bitstream, obtaining the differential motion vector by applying the determined coding factor value to the first result value according to a certain operation, and obtaining a motion vector of the current block, based on the obtained differential motion vector and a prediction motion vector of the current block.

公开(公告)号：US20200260079A1

公开(公告)日：2020-08-13

申请号：US15776353

申请日：2016-11-23

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jung-hye MIN ,  Chan-yul KIM ,  Sun-il LEE

IPC: H04N19/122 ,  H04N19/105 ,  H04N19/136 ,  H04N19/176

Abstract: Provided are an image decoding method, according to an embodiment, capable of obtaining a residual signal of an image from a bitstream, changing a ratio of sizes of adjacent first blocks among a plurality of first blocks including the residual signal based on block ratio information obtained from the bitstream, and decoding the residual signal based on the changed ratio, wherein the block ratio information indicates one of predetermined ratios to which the ratio of the sizes of the adjacent first blocks is changeable; and an image decoding device capable of performing the image decoding method. Provided are also an image encoding method, according to an embodiment, capable of being performed in an opposite or similar way to the image decoding method; and an image encoding device capable of performing the image encoding method.

公开(公告)号：US20200053363A1

公开(公告)日：2020-02-13

申请号：US16339574

申请日：2016-10-10

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jung-hye MIN ,  Min-woo PARK ,  Bo-ra JIN ,  Chan-yul KIM

IPC: H04N19/176 ,  H04N19/119 ,  H04N19/44 ,  H04N19/463 ,  H04N19/122

Abstract: Provided is a method of decoding an image, the method including: determining at least one coding unit for splitting an image, based on block shape information of a current coding unit; determining at least one transformation unit, based on a shape of the current coding unit included in the at least one coding unit; and decoding the image by performing inverse transformation based on the at least one transformation unit, wherein the block shape information indicates whether the current coding unit is a square shape or a non-square shape. Also, provided is an encoding method corresponding to the decoding method. In addition, provided is an encoding apparatus or decoding apparatus capable of performing the encoding or decoding method.

公开(公告)号：US20190230384A1

公开(公告)日：2019-07-25

申请号：US16105616

申请日：2018-08-20

Applicant: SAMSUNG ELECTRONICS CO., LTD. ,  INDUSTRY-ACADEMIC COOPERATION FOUNDATION, YONSEI UNIVERSITY

Inventor： Sun-il LEE ,  Sangyoun LEE ,  Sanghoon LEE ,  Dosik HWANG ,  Changhyun PARK ,  Sewoong AHN ,  Jinseong JANG ,  Chan-yul KIM ,  Taeoh KIM ,  Taejoon EO ,  Jongyoo KIM

IPC: H04N19/86 ,  H04N19/172 ,  H04N19/136 ,  H04N19/186

Abstract: Provided is an image encoding method including generating a first picture reconstructed by using a residual picture and a predicted picture; generating a second picture by applying a first artifact reduction filter to the first picture; determining a picture having a smaller bit-rate distortion cost from among the first and second pictures by comparing a first bit-rate distortion cost of the first picture with a second bit-rate distortion cost of the second picture; generating a third picture by applying an in-loop filter to the determined picture; generating a fourth picture by applying a second artifact reduction filter to the third picture; determining a picture having smaller distortion from among the third and fourth pictures by comparing first distortion of the third picture with second distortion of the fourth picture; and generating, via a processor, a bitstream including information about whether the second artifact reduction filter is applied.

公开(公告)号：US20190037217A1

公开(公告)日：2019-01-31

申请号：US16077540

申请日：2017-02-16

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Bo-ra JIN ,  Chan-yul KIM ,  Min-woo PARK

IPC: H04N19/139 ,  H04N19/159 ,  H04N19/105 ,  H04N19/117 ,  H04N19/167 ,  H04N19/567 ,  H04N19/176

Abstract: Provided are a video encoding method and a video encoding apparatus capable of performing the video encoding method. The video encoding method according to an embodiment includes generating a first predicted block by performing intra prediction on a current block by using neighboring pixels of the current block which have been previously encoded and reconstructed; determining a reference block corresponding to the current block and included in a reconstructed pixel region encoded and reconstructed prior to the current block; generating a residual block, based on the reference block; generating a second predicted block by adding residual values of pixels included in the residual block and intra prediction values of pixels included in the first predicted block; determining the first predicted block or the second predicted block to be a predicted block of the current block; and generating a bitstream including residual data of the current block generated from the determined predicted block.

公开(公告)号：US20180249161A1

公开(公告)日：2018-08-30

申请号：US15959694

申请日：2018-04-23

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Young-o PARK ,  Chan-yul KIM ,  Kwang-pyo CHOI ,  Jeong-hoon PARK

IPC: H04N19/152 ,  H04N19/70 ,  H04N19/44

CPC classification number: H04N19/152 ,  H04N19/44 ,  H04N19/70

Abstract: Provided are methods and apparatuses for encoding and decoding an image. Method of encoding includes: determining a maximum size of a buffer to decode each image frame by a decoder, a number of image frames to be reordered, and latency information of an image frame having a largest difference between an encoding order and a display order from among image frames that form an image sequence, based on an encoding order the image frames that form the image sequence, an encoding order of reference frames referred to by the image frames, a display order of the image frames, and a display order of the reference frames; and adding, to a mandatory sequence parameter set, a first syntax indicating the maximum size of the buffer, a second syntax indicating the number of image frames to be reordered, and a third syntax indicating the latency information.

公开(公告)号：US20180199045A1

公开(公告)日：2018-07-12

申请号：US15917051

申请日：2018-03-09

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Young-o PARK ,  Il-koo KIM ,  Chan-yul KIM ,  Kwang-pyo CHOI

IPC: H04N19/19 ,  H04N19/58 ,  H04N19/196 ,  H04N19/463

Abstract: Provided are an inter prediction method and a motion compensation method. The inter prediction method includes: performing inter prediction on a current image by using a long-term reference image stored in a decoded picture buffer; determining residual data and a motion vector of the current image generated via the inter prediction; and determining least significant bit (LSB) information as a long-term reference index indicating the long-term reference image by dividing picture order count (POC) information of the long-term reference image into most significant bit (MSB) information and the LSB information.

公开(公告)号：US20180014022A1

公开(公告)日：2018-01-11

申请号：US15538853

申请日：2014-12-30

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Dae-sung CHO ,  Chan-yul KIM ,  Jeong-hoon PARK ,  Pil-kyu PARK ,  Kwang-pyo CHOI ,  Dai-woong CHOI ,  Woong-il CHOI

IPC: H04N19/167 ,  H04N19/156 ,  H04N19/61 ,  H04N19/176 ,  H04N19/124 ,  H04N19/13 ,  H04N7/01 ,  H04N19/182

CPC classification number: H04N19/167 ,  H04N7/0127 ,  H04N19/103 ,  H04N19/124 ,  H04N19/13 ,  H04N19/132 ,  H04N19/156 ,  H04N19/169 ,  H04N19/176 ,  H04N19/182 ,  H04N19/436 ,  H04N19/46 ,  H04N19/59 ,  H04N19/61

Abstract: An encoding apparatus for encoding an image includes: a communicator configured to receive, from a device, device information related to the device; and a processor configured to encode the image by using image information of the image and the device information, wherein the processor is further configured to process the image according to at least one of the device information and the image information, determine a non-encoding region, a block-based encoding region, and a pixel-based encoding region of the image according to at least one of the device information and the image information, performs block-based encoding on the block-based encoding region by using a quantization parameter determined according to at least one of the device information and the image information, perform pixel-based encoding on the pixel-based encoding region, generates an encoded image by entropy encoding a symbol determined by the block-based encoding or the pixel-based encoding, and generate a bitstream comprising the encoded image, region information of the block-based encoding region and the pixel-based encoding region, and quantization information of the quantization parameter, and wherein the communicator is further configured to transmit the bitstream to the device.

公开(公告)号：US20170208045A1

公开(公告)日：2017-07-20

申请号：US15468567

申请日：2017-03-24

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Mi-suk HUH ,  Hee-kwan LEE ,  Kwang-pyo CHOI ,  Chan-yul KIM ,  Seog-chung SEO

IPC: H04L29/06 ,  H04L9/14 ,  H04L9/32 ,  H04L9/08 ,  H04L9/30

CPC classification number: H04L63/0428 ,  H04L9/0822 ,  H04L9/0825 ,  H04L9/0841 ,  H04L9/0861 ,  H04L9/14 ,  H04L9/30 ,  H04L9/3242 ,  H04L9/3247 ,  H04L63/061 ,  H04L63/0869

Abstract: The present disclosure relates to technologies for a sensor network, machine-to-machine (M2M) communication, machine type communication (MTC), and an Internet of Things (IoT) network. The present disclosure may be used in intelligence services based on such technologies (smart homes, smart buildings, smart cities, smart cars or connected cars, healthcare, digital education, retail business, and security and safety-related services). Provided is a method of transmitting encrypted data for preventing identification of transmitting and receiving devices, from a first device to a second device, the method including: generating an encryption key for encrypting data; generating key identification information by using the generated encryption key and encrypting the data; and transmitting a data set including the encrypted data and the key identification information to the second device.