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公开(公告)号：US09208544B2
公开(公告)日：2015-12-08
申请号：US14140552
申请日：2013-12-26
Applicant: Novatek Microelectronics Corp.
Inventor： Jian-De Jiang , Jian-Hua Liang , Yuan-Jia Du , Chun Wang , Chun-Wei Chen
CPC classification number: G06T5/003 , G06T2207/10004 , G06T2207/20021 , G06T2207/20024 , G06T2207/20172
Abstract: An image processing apparatus and an image fine-tuning method are provided. The image processing apparatus includes a high-pass filter, a block comparator, an image data reconstructor, and a calculator. The high-pass filter receives a first image to generate a filtered image. The block comparator receives an input image and the first image to generate a block comparison result. The image data reconstructor receives the filtered image and the block comparison result to generate image reconstruction data. The calculator receives the input image and the image reconstruction data to generate an output image.
Abstract translation: 提供了图像处理装置和图像微调方法。 图像处理装置包括高通滤波器，块比较器，图像数据重建器和计算器。 高通滤波器接收第一图像以生成滤波图像。 块比较器接收输入图像和第一图像以产生块比较结果。 图像数据重构器接收滤波图像和块比较结果以产生图像重建数据。 计算器接收输入图像和图像重建数据以产生输出图像。
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公开(公告)号：US10380777B2
公开(公告)日：2019-08-13
申请号：US15347796
申请日：2016-11-10
Applicant: Novatek Microelectronics Corp.
Inventor： Xiao-Na Xie , Kai Kang , Jian-Hua Liang , Yuan-Jia Du
Abstract: The disclosure proposes a method of texture synthesis and an apparatus using the same. In one of the exemplary embodiments, the step of generating the first single scale detail image would include not limited to: performing a feature extraction of a first pixel block of an image frame to derive a first pixel feature, applying a first criteria to the first pixel feature to derive a positive result, performing a first detail alignment and a maximum extension of the positive result to derived an adjusted positive mapping result, applying a second criteria, which is opposite to the first criteria, to the first pixel feature to derive a negative result, performing a second detail alignment and a minimum extension of the negative result to derived an adjusted negative mapping result, and blending the adjusted positive mapping result and the adjusted negative mapping result to generate the first single scale detail image.
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公开(公告)号：US09947258B2
公开(公告)日：2018-04-17
申请号：US14838372
申请日：2015-08-28
Applicant: Novatek Microelectronics Corp.
Inventor： Bo Zhao , Lei Zhang , Yuan-Jia Du , Yen-Tao Liao
IPC: G09G3/20
CPC classification number: G09G3/2003 , G09G2300/0452 , G09G2310/027 , G09G2320/0233 , G09G2320/0242 , G09G2320/0626 , G09G2320/0666 , G09G2340/0428 , G09G2340/0457 , G09G2340/06
Abstract: An image processing method is provided. The image processing method includes: performing dynamic brightness control on an input image to determine a brightness gain for the input image; performing texture analysis on the input image based on blocks to determine filter indexes for the input image; performing color conversion with edge protection on the input image according to the brightness gain; and performing sub-pixel adjustment on the input image according to the filter indexes and a pixel arrangement of a display panel, so as to output an output image. An image processing apparatus is also provided.
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公开(公告)号：US09779486B2
公开(公告)日：2017-10-03
申请号：US14850977
申请日：2015-09-11
Applicant: Novatek Microelectronics Corp.
Inventor： Mei-Juan Yang , Jian-Hua Liang , Yuan-Jia Du
CPC classification number: G06T5/002 , G06T5/20 , G06T2207/20192
Abstract: An image processing apparatus and method thereof are provided. The image processing apparatus includes a false contour detection circuit and a false contour reduction circuit. The false contour detection circuit includes detection modules and a determination module. The detection modules respectively detect different features of the same image input signal and correspondingly output feature coefficients. The determination module is coupled to the detection modules and determines a false contour coefficient according to the feature coefficients. The false contour reduction circuit is coupled to the determination module of the false contour detection circuit to receive the false contour coefficient and perform false contour reduction on the image input signal according to the false contour coefficient, so as to output a corresponding image output signal.
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公开(公告)号：US10319311B2
公开(公告)日：2019-06-11
申请号：US15441265
申请日：2017-02-24
Applicant: Novatek Microelectronics Corp.
Inventor： Yuan-Jia Du
Abstract: A display system, an electronic apparatus and a display adjustment method thereof are provided. The electronic apparatus comprises a display panel, a timing controller circuit and a processing circuit. The display adjustment method of the electronic apparatus comprising: processing, by the timing controller circuit, frame data to be displayed by the display panel; analyzing, by the processing circuit, an image including a face of a person, and comparing an average luminance value of the face area with a threshold to obtain adjustment information with respect to the light perceived by the face; and correspondingly adjusting, by the timing controller circuit, the frame data or at least one display characteristics associated with the frame data according to the adjustment information. Furthermore, the display system comprises the processing circuit for one electronic apparatus, and the display panel and the timing controller for another electronic apparatus.
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Patent Agency Ranking
公开(公告)号：US20180096488A1
公开(公告)日：2018-04-05
申请号：US15347796
申请日：2016-11-10
Applicant: Novatek Microelectronics Corp.
Inventor： Xiao-Na Xie , Kai Kang , Jian-Hua Liang , Yuan-Jia Du
CPC classification number: G06T11/60 , G06T7/30 , G06T11/001 , G06T15/04 , G06T2210/36
Abstract: The disclosure proposes a method of texture synthesis and an apparatus using the same. In one of the exemplary embodiments, the step of generating the first single scale detail image would include not limited to: performing a feature extraction of a first pixel block of an image frame to derive a first pixel feature, applying a first criteria to the first pixel feature to derive a positive result, performing a first detail alignment and a maximum extension of the positive result to derived an adjusted positive mapping result, applying a second criteria, which is opposite to the first criteria, to the first pixel feature to derive a negative result, performing a second detail alignment and a minimum extension of the negative result to derived an adjusted negative mapping result, and blending the adjusted positive mapping result and the adjusted negative mapping result to generate the first single scale detail image.
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公开(公告)号：US09679213B2
公开(公告)日：2017-06-13
申请号：US14852629
申请日：2015-09-14
Applicant: Novatek Microelectronics Corp.
Inventor： Mei-Juan Yang , Jian-Hua Liang , Yuan-Jia Du
CPC classification number: G06K9/03 , G06K9/4604 , G06K9/6202 , G06T5/002 , G06T5/20
Abstract: An image processing apparatus and an image processing method are provided. The image processing apparatus comprises a false contour detection circuit and a false contour reduction circuit. The false contour detection circuit is configured to detect a flat pixel distribution of an image input signal and correspondingly output a false contour coefficient. The false contour reduction circuit is coupled to the false contour detection circuit to receive the false contour coefficient, and is configured to perform false contour reduction on the image input signal according to the false contour coefficient, so as to correspondingly output an image output signal.
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公开(公告)号：US11037331B1
公开(公告)日：2021-06-15
申请号：US16748461
申请日：2020-01-21
Applicant: NOVATEK MICROELECTRONICS CORP.
Inventor： Cong Zhang , Jian-Hua Liang , Yuan-Jia Du
Abstract: A method for de-contouring a source image is provided. In the method, a reference image is obtained based on the source image. Multi-oriented gradient calculation is performed on each pixel of the reference image, so as to obtain, for each pixel of the reference image, multiple gradient features that respectively correspond to multiple directions. For each pixel of the reference image, a monotonicity index is determined based on the corresponding gradient features. Then, a detail-protecting and de-contour operation is performed on the source image based on the monotonicity indices determined for the pixels of the reference image.
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公开(公告)号：US20180330523A1
公开(公告)日：2018-11-15
申请号：US15591121
申请日：2017-05-10
Applicant: Novatek Microelectronics Corp.
Inventor： Lei Zhang , Yuan-Jia Du , Heng-Yao Lin
IPC: G06T11/00
CPC classification number: G06T11/001 , G09G5/02
Abstract: An image processing apparatus including an image processing circuit is provided. The image processing circuit is configured to perform a subpixel conversion operation on an input image of a first format to convert the input image of the first format to the input image of a second format; obtain a first detection result with respect to a target pixel of the input image of the first format; determine a filter parameter with respect to the target pixel according to the first detection result; and perform a subpixel rendering operation on the input image of the second format according to the determined filter parameter to obtain an output image.
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公开(公告)号：US20170061843A1
公开(公告)日：2017-03-02
申请号：US14838372
申请日：2015-08-28
Applicant: Novatek Microelectronics Corp.
Inventor： Bo Zhao , Lei Zhang , Yuan-Jia Du , Yen-Tao Liao
IPC: G09G3/20
CPC classification number: G09G3/2003 , G09G2300/0452 , G09G2310/027 , G09G2320/0233 , G09G2320/0242 , G09G2320/0626 , G09G2320/0666 , G09G2340/0428 , G09G2340/0457 , G09G2340/06
Abstract: An image processing method is provided. The image processing method includes: performing dynamic brightness control on an input image to determine a brightness gain for the input image; performing texture analysis on the input image based on blocks to determine filter indexes for the input image; performing color conversion with edge protection on the input image according to the brightness gain; and performing sub-pixel adjustment on the input image according to the filter indexes and a pixel arrangement of a display panel, so as to output an output image. An image processing apparatus is also provided.
Abstract translation: 提供了图像处理方法。 图像处理方法包括：对输入图像执行动态亮度控制，以确定输入图像的亮度增益; 基于块对输入图像进行纹理分析，以确定输入图像的滤波器索引; 根据亮度增益对输入图像进行边缘保护，进行颜色转换; 以及根据滤波器索引和显示面板的像素布置对输入图像执行子像素调整，以输出输出图像。 还提供了一种图像处理装置。
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