公开(公告)号：US10282831B2

公开(公告)日：2019-05-07

申请号：US14981821

申请日：2015-12-28

Applicant: Novatek Microelectronics Corp.

Inventor： Chien-Chi Chen ,  Tung-Hsin Lee ,  Chieh-Cheng Chen

IPC: G06T5/50 ,  G06T5/00

Abstract: An apparatus for motion compensated noise reduction for input images is provided. The motion estimation and motion compensation circuit performs a motion estimation operation and a motion compensation operation on a current image and a previous image to obtain a first patch. The block matching operation circuit performs a block matching operation on the current image and the previous image to obtain a second patch. The motion detection circuit performs a motion detection operation on a target patch according to the first patch and the second patch to output a set of third patches. The current image includes the target patch. The noise reduction circuit performs a noise reduction operation on the set of third patches according to a threshold curve, so as to generate the target patch that the noise is reduced. A method for motion compensated noise reduction for input images is also provided.

公开(公告)号：US20170188038A1

公开(公告)日：2017-06-29

申请号：US14981821

申请日：2015-12-28

Applicant: Novatek Microelectronics Corp.

Inventor： Chien-Chi Chen ,  Tung-Hsin Lee ,  Chieh-Cheng Chen

IPC: H04N19/51 ,  H04N19/86

CPC classification number: G06T5/50 ,  G06T5/002 ,  G06T2207/20021 ,  G06T2207/20182

Abstract: An apparatus for motion compensated noise reduction for input images is provided. The motion estimation and motion compensation circuit performs a motion estimation operation and a motion compensation operation on a current image and a previous image to obtain a first patch. The block matching operation circuit performs a block matching operation on the current image and the previous image to obtain a second patch. The motion detection circuit performs a motion detection operation on a target patch according to the first patch and the second patch to output a set of third patches. The current image includes the target patch. The noise reduction circuit performs a noise reduction operation on the set of third patches according to a threshold curve, so as to generate the target patch that the noise is reduced. A method for motion compensated noise reduction for input images is also provided.