公开(公告)号：US20220284595A1

公开(公告)日：2022-09-08

申请号：US17628317

申请日：2019-07-25

Applicant: NEC Corporation

Inventor： Hiroaki IGARASHI ,  Seiya SHIBATA ,  Liang FENG

IPC: G06T7/223 ,  G06T7/12 ,  G06T7/70 ,  G06T7/90

Abstract: An object tracking device includes an object detection unit and a matching unit. The object detection unit includes a plurality of detectors having different processing speeds or accuracy. The object detection unit detects, for each of frames of image data input in time series, each object from the image data using one detector selected from the plurality of the detectors. The matching unit matches a current object detection result which the object detection unit generates from image data of a current frame with a previous object detection result which the object detection unit generates from image data of a previous frame before the current frame, and generates a tracking result of the object based on a matching result.

公开(公告)号：US20220201319A1

公开(公告)日：2022-06-23

申请号：US17441832

申请日：2019-03-26

Applicant: NEC Corporation

Inventor： Hiroaki IGARASHI

IPC: H04N19/196 ,  H04N19/136 ,  H04N19/159 ,  H04N19/176

Abstract: A moving image encoding device includes: a parameter correction unit that corrects an encoding parameter for encoding a moving image; a block arrangement determination unit that determines block information used for encoding the moving image; and an encoding unit that encodes the moving image, the block arrangement determination unit acquires the corrected encoding parameter, and determines and outputs the block information, and the encoding unit encodes the moving image by using the encoding parameter before correction and the block information output by the block arrangement determination unit.

公开(公告)号：US20190373262A1

公开(公告)日：2019-12-05

申请号：US16478205

申请日：2018-01-17

Applicant: NEC Corporation

Inventor： Hiroaki IGARASHI

IPC: H04N19/124 ,  H04N19/436 ,  H04N19/46 ,  H04N19/176

Abstract: This quantization device includes a processing unit which calculates the cost involved in a plurality of data lengths in consideration of the compression ratio and image quality deterioration due to compression of an image. A process for calculating the cost is partially common among the plurality of data lengths. The processing unit distributes the common process for the plurality of data lengths, executes the distributed processes in parallel, and thereby determines, as an optimal data length, one data length the cost for which is the lowest, among the plurality of data lengths.

公开(公告)号：US20180316920A1

公开(公告)日：2018-11-01

申请号：US15771560

申请日：2016-10-19

Applicant: NEC Corporation

Inventor： Hiroaki IGARASHI

IPC: H04N19/124 ,  H04N19/176 ,  H04N19/436 ,  H04N19/44

CPC classification number: H04N19/436 ,  H04N19/60 ,  H04N19/88

Abstract: A video image encoding device includes a generator that generates position information indicating, for each size of an image block, a position of each of a plurality of image blocks in an image, and an image processor that executes transform processing for an image block of a predetermined size at a position indicated by the generated position information.