公开(公告)号：US20140286592A1

公开(公告)日：2014-09-25

申请号：US13935564

申请日：2013-07-05

Applicant: Novatek Microelectronics Corp.

Inventor： Tung-Hsin Lee

IPC: G06T5/00

CPC classification number: G06T5/002 ,  G06T2207/20012

Abstract: An image processing circuit and a ringing artefact removing method thereof are provided. The image processing circuit includes a deRing detection unit and a deRing filtering unit. The deRing detection unit receives a plurality of display data of an input frame and calculates a regulating reference value corresponding to each display data according to the display data and the display data at adjacent display positions. The deRing filtering unit is coupled to the deRing detection unit. The deRing filtering unit receives the display data and regulates the display data according the regulating reference values respectively corresponding to the display data to output a plurality of regulated display data.

Abstract translation: 提供了一种图像处理电路及其振动伪影去除方法。 图像处理电路包括去噪检测单元和去噪滤波单元。 去噪检测单元接收输入帧的多个显示数据，并根据显示数据和相邻显示位置处的显示数据计算与每个显示数据相对应的调节参考值。 去噪滤波单元耦合到去抖动检测单元。 去噪滤波单元接收显示数据并根据分别对应于显示数据的调节参考值来调节显示数据，以输出多个调节显示数据。

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.

公开(公告)号：US09406106B2

公开(公告)日：2016-08-02

申请号：US13935564

申请日：2013-07-05

Applicant: Novatek Microelectronics Corp.

Inventor： Tung-Hsin Lee

IPC: G06T5/00

CPC classification number: G06T5/002 ,  G06T2207/20012

Abstract: An image processing circuit and a ringing artifact removing method thereof are provided. The image processing circuit includes a deRing detection unit and a deRing filtering unit. The deRing detection unit receives a plurality of display data of an input frame and calculates a regulating reference value corresponding to each display data according to the display data and the display data at adjacent display positions. The deRing filtering unit is coupled to the deRing detection unit. The deRing filtering unit receives the display data and regulates the display data according the regulating reference values respectively corresponding to the display data to output a plurality of regulated display data.

Abstract translation: 提供了一种图像处理电路及其振铃神器去除方法。 图像处理电路包括去噪检测单元和去噪滤波单元。 去噪检测单元接收输入帧的多个显示数据，并根据显示数据和相邻显示位置处的显示数据计算与每个显示数据相对应的调节参考值。 去噪滤波单元耦合到去抖动检测单元。 去噪滤波单元接收显示数据并根据分别对应于显示数据的调节参考值来调节显示数据，以输出多个调节显示数据。

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.