公开(公告)号：US08928684B2

公开(公告)日：2015-01-06

申请号：US13782378

申请日：2013-03-01

Applicant: Novatek Microelectronics Corp.

Inventor： Guang-Zhi Liu ,  Jian-De Jiang

IPC: G09G5/02 ,  G06T15/50 ,  H04N13/00 ,  H04N13/04

CPC classification number: G06T15/50 ,  G09G2320/0252 ,  G09G2320/066 ,  H04N13/00 ,  H04N13/133 ,  H04N13/341

Abstract: An overdrive device includes a training unit, an analysis unit and a Contrast adjustment unit. The training unit establishes a luminance difference look-up table (LUT) having an R2 number of luminance differences. Each of the R2 number of luminance differences represents a luminance difference between a measured display luminance value and a target luminance value of a display device when each of first and second viewing angle images correspond to any value of a grayscale range R. With respect to first and second viewing angle input image data, for pixel data therein corresponding to a same pixel position, the analysis unit looks up the luminance difference LUT to obtain a looked-up luminance difference, and accordingly calculates a luminance difference index. The contrast adjustment unit partially adjusts the grayscale of the second viewing angle image according to the luminance value index to obtain headroom for an overdrive operation.

Abstract translation: 过载设备包括训练单元，分析单元和对比度调节单元。 训练单元建立具有R2亮度差的亮度差查找表（LUT）。 每个R2亮度差表示当第一和第二视角图像中的每一个对应于灰度范围R的任何值时，测量的显示亮度值和显示装置的目标亮度值之间的亮度差。关于第一 和第二视角输入图像数据，对应于相同像素位置的像素数据，分析单元查找亮度差值LUT以获得查找的亮度差，因此计算亮度差异指数。 对比度调整单元根据亮度值指标部分地调整第二视角图像的灰度，以获得过驱动操作的净空。

公开(公告)号：US09058791B2

公开(公告)日：2015-06-16

申请号：US13742880

申请日：2013-01-16

Applicant: NOVATEK MICROELECTRONICS CORP.

Inventor： Jian-De Jiang ,  Chun Wang

IPC: G06T15/00 ,  G09G5/391 ,  G09G5/393

CPC classification number: G09G5/391 ,  G09G5/393 ,  G09G2340/0407 ,  G09G2340/0435 ,  G09G2350/00

Abstract: An image processing device includes an image processing unit, an over-driving unit, and an up-sampler. The image processing unit receives a full-resolution 3D input image and outputs a half-resolution 3D image to a memory. The over-driving unit is coupled to the image processing unit and the memory for over-driving a current half-resolution 3D image outputted from the image processing unit according to a previous half-resolution 3D image stored in the memory. The up-sampler is selectively coupled to the over-driving unit for up-sampling an over-driven half-resolution 3D image outputted from the over-driving unit to output a full-resolution 3D output image.

Abstract translation: 图像处理装置包括图像处理单元，过驱动单元和上采样器。 图像处理单元接收全分辨率3D输入图像并将半分辨率3D图像输出到存储器。 过驱动单元耦合到图像处理单元和存储器，用于根据存储在存储器中的先前半分辨率3D图像来超越从图像处理单元输出的当前半分辨率3D图像。 上取样器选择性地耦合到过驱动单元，用于对从过驱动单元输出的过驱动半分辨率3D图像进行上采样以输出全分辨率3D输出图像。

公开(公告)号：US09218651B2

公开(公告)日：2015-12-22

申请号：US14277481

申请日：2014-05-14

Applicant: NOVATEK (SHANGHAI) CO., LTD. ,  NOVATEK MICROELECTRONICS CORP.

Inventor： Bo Zhao ,  Guang-Zhi Liu ,  Jian-De Jiang

IPC: G06K9/40 ,  G06T5/00

CPC classification number: G06T5/007 ,  G06T2207/20012 ,  G06T2207/20021 ,  H04N1/6027

Abstract: An image processing method for adjusting the luminance and contrast of an input image comprises the following steps. First, local spatial luminance statistics is performed on the first pixels of the input image to generate a luminance image including a plurality of second pixels. Then, from a preset mapping curve group comprising a plurality of smooth mapping curves, a corresponding smooth mapping curve is selected for each of the second pixels according to an adjusting function. Next, the pixel values of the second pixels are adjusted according to the corresponding smooth mapping curves to generate an adjusted image.

Abstract translation: 用于调整输入图像的亮度和对比度的图像处理方法包括以下步骤。 首先，对输入图像的第一像素进行局部空间亮度统计，生成包括多个第二像素的亮度图像。 然后，从包括多个平滑映射曲线的预设映射曲线组中，根据调整功能为每个第二像素选择对应的平滑映射曲线。 接下来，根据对应的平滑映射曲线来调整第二像素的像素值以生成调整图像。

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。

公开(公告)号：US08855409B2

公开(公告)日：2014-10-07

申请号：US13668742

申请日：2012-11-05

Applicant: Novatek Microelectronics Corp.

Inventor： Chun-Wei Chen ,  Guang-Zhi Liu ,  Chun Wang ,  Jian-De Jiang

IPC: G06K9/00 ,  G06K9/40 ,  H04N13/02 ,  H04N13/00

CPC classification number: H04N13/128 ,  H04N13/261

Abstract: A three-dimension (3D) image processing method is disclosed. A plurality of asymmetric filtering is performed on an input depth map to obtain a plurality of asymmetric filtering results. One among the asymmetric filtering results is selected as an output depth map. A two-dimension (2D) image is converted into a 3D image according to the output depth map.

Abstract translation: 公开了一种三维（3D）图像处理方法。 在输入深度图上执行多个非对称滤波以获得多个非对称滤波结果。 选择非对称滤波结果之一作为输出深度图。 根据输出深度图将二维（2D）图像转换成3D图像。

公开(公告)号：US20130279590A1

公开(公告)日：2013-10-24

申请号：US13866486

申请日：2013-04-19

Applicant: NOVATEK MICROELECTRONICS CORP.

Inventor： Yen-Sung CHEN ,  Tsui-Chin Chen ,  Jian-De Jiang

IPC: H04N7/36

CPC classification number: H04N19/513 ,  H04N19/533 ,  H04N19/567 ,  H04N19/587

Abstract: An image processing circuit and an image processing method are provided. The image processing circuit comprises a full search engine and a frame rate conversion (FRC) engine. The full search engine executes a full search to generate a sum of sum of absolute difference (SAD) distribution according to the reference image and the current image. The FRC engine analyzes a scene characteristic from the current image according to SAD distribution. The FRC engine adjusts at least one of the control parameters according to the scene characteristic. The FRC engine generates an interpolated image according to the reference image, the current image and the control parameters.

Abstract translation: 提供了图像处理电路和图像处理方法。 图像处理电路包括全搜索引擎和帧速率转换（FRC）引擎。 全搜索引擎执行全搜索以根据参考图像和当前图像产生绝对差（SAD）分布之和的和。 FRC引擎根据SAD分布从当前图像分析场景特征。 FRC引擎根据场景特性调整至少一个控制参数。 FRC引擎根据参考图像，当前图像和控制参数生成内插图像。

公开(公告)号：US20140009483A1

公开(公告)日：2014-01-09

申请号：US13782378

申请日：2013-03-01

Applicant: NOVATEK MICROELECTRONICS CORP.

Inventor： Guang-Zhi LIU ,  Jian-De Jiang

IPC: G06T15/50

CPC classification number: G06T15/50 ,  G09G2320/0252 ,  G09G2320/066 ,  H04N13/00 ,  H04N13/133 ,  H04N13/341

Abstract: An overdrive device includes a training unit, an analysis unit and a Contrast adjustment unit. The training unit establishes a luminance difference look-up table (LUT) having an R2 number of luminance differences. Each of the R2 number of luminance differences represents a luminance difference between a measured display luminance value and a target luminance value of a display device when each of first and second viewing angle images correspond to any value of a grayscale range R. With respect to first and second viewing angle input image data, for pixel data therein corresponding to a same pixel position, the analysis unit looks up the luminance difference LUT to obtain a looked-up luminance difference, and accordingly calculates a luminance difference index. The contrast adjustment unit partially adjusts the grayscale of the second viewing angle image according to the luminance value index to obtain headroom for an overdrive operation.

Abstract translation: 过载设备包括训练单元，分析单元和对比度调节单元。 训练单元建立具有R2亮度差的亮度差查找表（LUT）。 每个R2亮度差表示当第一和第二视角图像中的每一个对应于灰度范围R的任何值时，测量的显示亮度值和显示装置的目标亮度值之间的亮度差。关于第一 和第二视角输入图像数据，对应于相同像素位置的像素数据，分析单元查找亮度差值LUT以获得查找的亮度差，因此计算亮度差异指数。 对比度调整单元根据亮度值指标部分地调整第二视角图像的灰度，以获得过驱动操作的净空。

公开(公告)号：US09525873B2

公开(公告)日：2016-12-20

申请号：US13866486

申请日：2013-04-19

Applicant: NOVATEK MICROELECTRONICS CORP.

Inventor： Yen-Sung Chen ,  Tsui-Chin Chen ,  Jian-De Jiang

IPC: H04N11/02 ,  H04N19/51 ,  H04N19/533 ,  H04N19/567 ,  H04N19/587

CPC classification number: H04N19/513 ,  H04N19/533 ,  H04N19/567 ,  H04N19/587

Abstract: An image processing circuit and an image processing method are provided. The image processing circuit comprises a full search engine and a frame rate conversion (FRC) engine. The full search engine executes a full search to generate a sum of sum of absolute difference (SAD) distribution according to the reference image and the current image. The FRC engine analyzes a scene characteristic from the current image according to SAD distribution. The FRC engine adjusts at least one of the control parameters according to the scene characteristic. The FRC engine generates an interpolated image according to the reference image, the current image and the control parameters.

Abstract translation: 提供了图像处理电路和图像处理方法。 图像处理电路包括全搜索引擎和帧速率转换（FRC）引擎。 全搜索引擎执行全搜索以根据参考图像和当前图像产生绝对差（SAD）分布之和的和。 FRC引擎根据SAD分布从当前图像分析场景特征。 FRC引擎根据场景特性调整至少一个控制参数。 FRC引擎根据参考图像，当前图像和控制参数生成内插图像。

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

IPC: G06K9/40 ,  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。

公开(公告)号：US20130136362A1

公开(公告)日：2013-05-30

申请号：US13684153

申请日：2012-11-21

Applicant: NOVATEK MICROELECTRONICS CORP.

Inventor： Guang-Zhi Liu ,  Lei Zhou ,  Jian-De Jiang

IPC: G06K9/46

CPC classification number: G06K9/46 ,  H04N19/112 ,  H04N19/85

Abstract: An image processing method for processing an interleaved image is disclosed. A reference window and direction windows matched to the reference window are set with respect to known pixel rows in the interleaved image. First parameters along candidate directions of the reference window is calculated, wherein the first parameters denote pixel differences between the reference window and the direction windows. A respective first direction, among direction groups of the candidate directions and corresponding to a minimum of the first parameters, is found. First and/or second portion direction of first and second portions of the interleaved image are found among the first directions. The first and the second portions of the interleaved image are identified according to the first parameters. A center pixel of the reference window is obtained by interpolation according to the first and the second portion directions.

Abstract translation: 公开了一种用于处理交错图像的图像处理方法。 相对于交错图像中的已知像素行设置与参考窗口匹配的参考窗口和方向窗口。 计算参考窗口沿着候选方向的第一参数，其中第一参数表示参考窗口和方向窗口之间的像素差异。 找到候选方向的方向组之间的对应于第一参数的最小值的相应的第一方向。 在第一方向上找到交错图像的第一和第二部分的第一和/或第二部分方向。 根据第一参数来识别交错图像的第一和第二部分。 通过根据第一和第二部分方向的内插来获得参考窗口的中心像素。