公开(公告)号：US10412392B2

公开(公告)日：2019-09-10

申请号：US15684172

申请日：2017-08-23

申请人： Samsung Electronics Co., Ltd.

发明人： Young-beom Jung ,  Hyuk-jae Jang ,  Yo-won Jeong

IPC分类号： H04N19/154 ,  H04N19/124 ,  H04N19/147 ,  H04N19/19 ,  H04N19/61

摘要： According to at least some example embodiments of the inventive concepts, an apparatus for encoding video includes a quantizer configured to, based on a size of an initial quantization parameter of input data, generate output data by quantizing the input data to increase an objective evaluation value of encoded data generated from the output data, or generate the output data by quantizing the input data to increase a subjective evaluation value of the encoded data.

公开(公告)号：US20180234702A1

公开(公告)日：2018-08-16

申请号：US15814668

申请日：2017-11-16

申请人： SAMSUNG ELECTRONICS CO., LTD.

发明人： Young-beom Jung ,  Ju-won Byun ,  Hyuk-jae Jang ,  Jung-yeop Yang

IPC分类号： H04N19/82 ,  H04N19/172 ,  H04N19/13

CPC分类号： H04N19/82 ,  H04N19/117 ,  H04N19/13 ,  H04N19/132 ,  H04N19/157 ,  H04N19/172 ,  H04N19/176

摘要： An image processing method and apparatus for performing sample adaptive offset (SAO) processing are provided. The image processing method includes: performing, based on a largest coding unit (LCU) and a coding unit (CU), an encoding operation on a frame image; setting a maximum offset having a value adjusted according to a maximum transformation size in the encoding operation; and calculating, based on the set maximum offset, a sample adaptive offset (SAO) parameter for use in SAO compensation.

公开(公告)号：US10440363B2

公开(公告)日：2019-10-08

申请号：US15667924

申请日：2017-08-03

申请人： Samsung Electronics Co., Ltd.

发明人： Young-beom Jung ,  Hyuk-jae Jang

IPC分类号： H04N19/00 ,  H04N19/126 ,  H04N19/146 ,  H04N19/172 ,  H04N19/174 ,  H04N19/176 ,  H04N19/18 ,  H04N19/136 ,  H04N19/105

摘要： An encoder that performs quantization based on a deadzone and a video processing system including the encoder are provided. The encoder includes: a domain transform unit configured to transform first image data of a spatial domain into second image data of a frequency domain including first to N-th pieces of frequency data (wherein N is an integer equal to or greater than 1); a deadzone determination unit including a human visual system (HVS) table including human visual frequency sensitivities and configured to determine, based on the HVS table, a deadzone regarding each of the first to N-th pieces of frequency data; and a quantization unit configured to perform, based on the deadzone, quantization regarding the second image data.