公开(公告)号：US11011101B2

公开(公告)日：2021-05-18

申请号：US15985611

申请日：2018-05-21

Applicant: NOVATEK Microelectronics Corp.

Inventor： Xiao Zhang ,  Danyu Fu ,  Yuanjia Du ,  Jianhua Liang ,  Qiqiang Han

IPC: G09G3/20

Abstract: A method of controlling a display device is disclosed including receiving a plurality of sub-pixel values for a target pixel among a plurality of pixels of an image frame, wherein the sub-pixel values of the target pixel comprise red, green, and blue sub-pixel values; calculating a pixel-based boosting ratio corresponding to the target pixel according to the sub-pixel values of the target pixel; and adjusting at least one of a plurality of backlight duties associated with the target pixel and the plurality of sub-pixel values of the target pixel according to the pixel-based boosting ratio.

公开(公告)号：US10217437B2

公开(公告)日：2019-02-26

申请号：US15448508

申请日：2017-03-02

Applicant: NOVATEK Microelectronics Corp.

Inventor： Lei Zhang ,  Danyu Fu ,  Yuanjia Du ,  Yen-Tao Liao

IPC: G09G5/02

Abstract: A method of color conversion from a red-green-blue (RGB) color space to a red-green-blue-white (RGBW) color space on an input image includes calculating RGB and white gains with respect to an image block of the input image, calculating RGB and white gain with respect to a pixel of the image block, wherein the white gain with respect to the pixel of the image block is adjusted based on the RGB gain with respect to the pixel of the image block, and performing the RGB to RGBW color conversion based on the RGB and white gain with respect to the pixel of the image block, which improves local color and detail performance of an output image corresponding to the input image.

公开(公告)号：US10448043B2

公开(公告)日：2019-10-15

申请号：US15391864

申请日：2016-12-28

Applicant: NOVATEK Microelectronics Corp.

Inventor： Pengyuan Hu ,  Xi Tian ,  Yen-Sung Chen ,  Yuanjia Du

IPC: H04N19/52 ,  H04N19/513 ,  H04N19/105 ,  H04N19/14 ,  H04N19/56 ,  H04N19/176 ,  H04N19/172

Abstract: A motion estimation method and a motion estimator are provided. The motion estimation method includes the following steps of for each respective block of the current frame, selecting a candidate set associated with the current frame and a previous frame, and determining a motion vector according to the candidate set for the each respective block of the current frame. The candidate set includes at least one spatial candidate block in the current frame and temporal candidate blocks in the previous frame. The step of selecting the candidate set includes: selecting the spatial candidate block directly adjacent to the each respective block from the current frame and selecting the plurality of temporal candidate blocks directly adjacent to a reference block from the previous frame.

公开(公告)号：US09826171B2

公开(公告)日：2017-11-21

申请号：US14967341

申请日：2015-12-13

Applicant: NOVATEK Microelectronics Corp.

Inventor： Xianbo Tan ,  Jianhua Liang ,  Yuanjia Du

IPC: H04N5/265 ,  H04N5/235 ,  G06T5/00 ,  G06T5/50 ,  H04N5/77

CPC classification number: H04N5/265 ,  G06T5/009 ,  G06T5/50 ,  G06T2207/10016 ,  G06T2207/10144 ,  H04N5/2351 ,  H04N5/2355 ,  H04N5/2356 ,  H04N5/35581 ,  H04N5/77

Abstract: A method is provided for reconstructing a high dynamic range (HDR) video from a low dynamic range (LDR) video. The LDR video is captured with dynamic exposure values by a regular camera device to store as an LDR video file. An exposure setting sequence and an LDR video frame sequence are retrieved from the LDR video file, where the exposure setting sequence corresponds to the LDR video frame sequence. The LDR video frame sequence is aligned to generate a compensated frame sequence to merge with the LDR video frame sequence, so as to generate an HDR frame sequence and reconstruct the HDR video.

公开(公告)号：US09349158B2

公开(公告)日：2016-05-24

申请号：US14329991

申请日：2014-07-14

Applicant: NOVATEK Microelectronics Corp.

Inventor： Lin Zha ,  Chun-Wei Chen ,  Yuanjia Du ,  Chun Wang

IPC: G06K9/32 ,  H04N7/12 ,  G06T3/40 ,  G06T5/00 ,  G06T7/00 ,  G06T7/40 ,  G06K9/52 ,  G06F17/14

CPC classification number: G06T3/4007 ,  G06F17/148 ,  G06F17/175 ,  G06K9/527 ,  G06T3/4084 ,  G06T5/001 ,  G06T2207/20064

Abstract: An image interpolation method is utilized for performing an interpolation on a source image to obtain a destination image. The image interpolation method includes performing a domain transformation on a plurality of pixels of the source image to generate a plurality of first coefficients and a plurality of second coefficients; respectively determining an data interrelationship degree in at least one direction of each first coefficient to generate a plurality of direction results; performing a first interpolation process on the plurality of first coefficients according to the plurality of direction results to generate a plurality of first destination coefficients; performing a second interpolation process on the plurality of second coefficients to generate a plurality of second destination coefficients; performing a reverse domain transformation on the plurality of first destination coefficients and the plurality of second destination coefficients to obtain the destination image.

Abstract translation: 利用图像插值方法对源图像进行插值以获得目的图像。 图像插值方法包括对源图像的多个像素执行域变换以生成多个第一系数和多个第二系数; 分别确定每个第一系数的至少一个方向上的数据相互关系度以产生多个方向结果; 根据所述多个方向结果对所述多个第一系数进行第一插值处理，以产生多个第一目的地系数; 对所述多个第二系数执行第二插值处理以生成多个第二目的地系数; 对所述多个第一目的地系数和所述多个第二目的地系数执行反向域变换以获得所述目的地图像。