公开(公告)号：US20240107009A1

公开(公告)日：2024-03-28

申请号：US18273150

申请日：2021-12-06

Applicant: NEC Corporation

Inventor： Kenta IIDA ,  Keiichi Chono

IPC: H04N19/11 ,  H04N19/124 ,  H04N19/18 ,  H04N19/593

CPC classification number: H04N19/11 ,  H04N19/124 ,  H04N19/18 ,  H04N19/593

Abstract: The video coding device calculates a first value representing energy of the prediction error signals of the block to be processed, eliminates specified transform coefficients when at least one of a width and a height of the block to be processed exceeds a predetermined value and calculates a second value representing energy of the transform coefficients other than the eliminated transform coefficients, and decides not to make the candidate of prediction mode the optimal prediction mode, without executing quantizing, arithmetic-coding and local decoding, in a case where the second value is smaller than a predetermined degree as compared to the first value.

公开(公告)号：US20240129482A1

公开(公告)日：2024-04-18

申请号：US18483984

申请日：2023-10-10

Applicant: NEC Corporation

Inventor： Kenta IIDA ,  Kenta TOKUMITSU ,  Tatsuji MORIYOSHI ,  Keiichi CHONO

IPC: H04N19/139 ,  H04N19/132 ,  H04N19/176

CPC classification number: H04N19/139 ,  H04N19/132 ,  H04N19/176

Abstract: The video coding device is a video coding device capable of executing a predictive coding process including a specific process in which a coded frame of a different resolution from a resolution of a frame to be processed is used as a reference frame, and includes a coding unit which executes the predictive coding process, and a controller which prohibits, in the predictive coding process, execution of a first process which uses information, which is determined based on a spatial position of the block to be coded, on blocks in frames at different times, a second process which performs correction using information computed when decoding is performed, or both the first process and the second process.

公开(公告)号：US20230156206A1

公开(公告)日：2023-05-18

申请号：US17802378

申请日：2021-02-24

Applicant: NEC Corporation

Inventor： Takayuki ISHIDA ,  Tatsuji MORIYOSHI ,  Kenta IIDA

IPC: H04N19/436 ,  H04N19/146

CPC classification number: H04N19/436 ,  H04N19/146

Abstract: In order to make it possible to perform compression encoding of video more quickly and by an easier method, processing relating to the compression encoding of the video that has a greater speed-increasing effect due to parallel processing is performed by a parallel processing device that can execute the parallel processing more rapidly than a
CPU, processing with a high computational load and processing that requires high-speed processing based on sequential processing are performed by a sequential processing device that can execute the sequential processing more rapidly than the CPU, and processing that involves a higher frequency of alteration of content of an algorithm is performed by the CPU.