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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：US20150125088A1
公开(公告)日：2015-05-07
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
IPC: G06T5/00
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：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：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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Patent Agency Ranking
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：US20170053177A1
公开(公告)日：2017-02-23
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.
Abstract translation: 提供了图像处理装置和图像处理方法。 图像处理装置包括假轮廓检测电路和假轮廓降低电路。 伪轮廓检测电路被配置为检测图像输入信号的平坦像素分布并相应地输出假轮廓系数。 虚假轮廓降低电路耦合到假轮廓检测电路以接收假轮廓系数，并且被配置为根据假轮廓系数对图像输入信号执行假轮廓减小，以便相应地输出图像输出信号。
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公开(公告)号：US20170053176A1
公开(公告)日：2017-02-23
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.
Abstract translation: 提供了一种图像处理装置及其方法。 图像处理装置包括假轮廓检测电路和假轮廓降低电路。 假轮廓检测电路包括检测模块和确定模块。 检测模块分别检测相同图像输入信号的不同特征，并相应地输出特征系数。 确定模块耦合到检测模块，并根据特征系数确定假轮廓系数。 虚假轮廓降低电路耦合到假轮廓检测电路的确定模块，以接收假轮廓系数，并根据假轮廓系数对图像输入信号执行假轮廓降低，以输出相应的图像输出信号。
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9.发明授权公开(公告)号：US10916207B1
公开(公告)日：2021-02-09
申请号：US16664553
申请日：2019-10-25
Applicant: NOVATEK MICROELECTRONICS CORP.
Inventor： Hong-Chun Cong , Jian-Hua Liang , Xiao Zhang
IPC: G09G5/10 , G09G3/36 , G02F1/1347
Abstract: A dynamic image split method for a dual cell LCD that includes a back cell and a front cell is proposed to obtain a smoother back-cell image. Multiple desired effective transmittances that correspond to a group of front-cell pixels are taken into consideration in determining a transmittance for a back-cell pixel. The front-cell pixels in the group are related in position to the back-cell, and cooperatively form an area that is larger than and overlaps an area of the back-cell pixel.
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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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