公开(公告)号：US09986200B1

公开(公告)日：2018-05-29

申请号：US15592214

申请日：2017-05-11

Applicant: NOVATEK Microelectronics Corp.

Inventor： Wan-Ching Tsai ,  Chih-Chia Kuo ,  Shih-Sung Wen ,  Fu-Sheng Liang

IPC: H04N7/01 ,  H04N9/64 ,  H04N7/08

CPC classification number: H04N9/642 ,  G09G5/00 ,  H04N21/435 ,  H04N21/43635 ,  H04N21/44004 ,  H04N21/4402 ,  H04N21/816

Abstract: A switching method of video setting for a video conversion system includes generating a static metadata change flag when a static metadata change event is detected, repeating an output video after the static metadata change flag is generated, updating a video setting according to a static metadata corresponding to an input video when the output video is repeated, and converting the input video into the output video according to the video setting to display the output video.

公开(公告)号：US20150256804A1

公开(公告)日：2015-09-10

申请号：US14201938

申请日：2014-03-10

Applicant: Novatek Microelectronics Corp.

Inventor： Shih-Sung Wen ,  Chih-Chia Kuo

IPC: H04N9/64 ,  H04N9/77 ,  H04N7/01

CPC classification number: H04N9/646 ,  G06T5/002 ,  H04N5/21 ,  H04N9/77

Abstract: Artifact reduction method and apparatus, and image processing method and apparatus are provided. The artifact reduction apparatus includes a scaling-down unit, a buffer unit, an artifact detection unit, a scaling-up unit and a filter unit. The scaling-down unit scales down a resolution of a current original image frame to obtain a current low-resolution image frame. The artifact detection unit performs an artifact detection to the current low-resolution image frame to obtain low-resolution weights in accordance with a relation of the current low-resolution image frame and a previous low-resolution image frame provided by the buffer unit. The scaling-up unit scales up a number of the low-resolution weights to obtain a high-resolution weights. By using the high-resolution weights, the filter unit performs an image processing procedure to the current original image frame for reducing artifact of the current original image frame and obtaining an adjusted image frame.

Abstract translation: 提供神器减少方法和装置，以及图像处理方法和装置。 伪影减少装置包括缩小单元，缓冲单元，伪像检测单元，放大单元和滤波器单元。 缩放单元缩放当前原始图像帧的分辨率，以获得当前的低分辨率图像帧。 伪影检测部对当前的低分辨率图像帧进行伪影检测，根据当前的低分辨率图像帧和由缓冲器单元提供的先前的低分辨率图像帧的关系来获得低分辨率权重。 放大单元扩大了一些低分辨率权重以获得高分辨率权重。 通过使用高分辨率权重，滤波器单元对当前原始图像帧执行图像处理过程，以减少当前原始图像帧的伪影并获得调整后的图像帧。

公开(公告)号：US09756306B2

公开(公告)日：2017-09-05

申请号：US14201938

申请日：2014-03-10

Applicant: Novatek Microelectronics Corp.

Inventor： Shih-Sung Wen ,  Chih-Chia Kuo

IPC: G06T5/00 ,  H04N9/64 ,  H04N9/77 ,  H04N5/21

CPC classification number: H04N9/646 ,  G06T5/002 ,  H04N5/21 ,  H04N9/77

Abstract: Artifact reduction method and apparatus, and image processing method and apparatus are provided. The artifact reduction apparatus includes a scaling-down unit, a buffer unit, an artifact detection unit, a scaling-up unit and a filter unit. The scaling-down unit scales down a resolution of a current original image frame to obtain a current low-resolution image frame. The artifact detection unit performs an artifact detection to the current low-resolution image frame to obtain low-resolution weights in accordance with a relation of the current low-resolution image frame and a previous low-resolution image frame provided by the buffer unit. The scaling-up unit scales up a number of the low-resolution weights to obtain a high-resolution weights. By using the high-resolution weights, the filter unit performs an image processing procedure to the current original image frame for reducing artifact of the current original image frame and obtaining an adjusted image frame.