公开(公告)号：US08111935B2

公开(公告)日：2012-02-07

申请号：US11866422

申请日：2007-10-03

Applicant: Shing-Chia Chen ,  Ling-Hsiu Huang

Inventor： Shing-Chia Chen ,  Ling-Hsiu Huang

IPC: G06K9/40

CPC classification number: G06T5/008 ,  G06T5/20 ,  G06T2207/20012

Abstract: An image processing method applied in an image processor for processing an image including first pixels each having a pixel value, a first reference pixel value representing a mean value of the pixel values of the first pixels, the pixel values of the first pixels being distributed within a first distribution range bounded between a second reference pixel value and a third reference pixel value. Second pixels are selected from the first pixels. The pixel values of the second pixels are distributed within a second distribution range. The second distribution range of the second pixels is smaller than the first distribution range of the first pixels. A local characteristic of the image is obtained according to the second pixels. A parameter of the image is adjusted according to the local characteristic.

Abstract translation: 一种应用于图像处理器中的图像处理方法，用于处理包括每个具有像素值的第一像素的图像，表示第一像素的像素值的平均值的第一参考像素值，第一像素的像素值分布在 在第二参考像素值和第三参考像素值之间限定的第一分布范围。 从第一像素中选择第二像素。 第二像素的像素值分布在第二分布范围内。 第二像素的第二分布范围小于第一像素的第一分布范围。 根据第二像素获得图像的局部特征。 根据本地特性调整图像的参数。

公开(公告)号：US20100013871A1

公开(公告)日：2010-01-21

申请号：US12173234

申请日：2008-07-15

Applicant: Kuo-Liang Shen ,  Chien-Chung Chen ,  Shing-Chia Chen

Inventor： Kuo-Liang Shen ,  Chien-Chung Chen ,  Shing-Chia Chen

IPC: G09G5/10 ,  G09G3/36

CPC classification number: G09G3/3406 ,  G09G2320/062

Abstract: A backlight controller, a display device using the same and a method for controlling a backlight module are provided. The backlight controller includes a temporal weighting module and a dimming controlling module. The temporal weighting module calculates a weight sum of a first backlight luminance provided in a current frame and a target backlight luminance to serve as an adjusted backlight luminance. The target backlight luminance is obtained according to an image content of the current frame. The dimming controlling module increases or decreases the adjusted backlight luminance by a step value according to the target backlight luminance and generates a second backlight luminance provided in a next frame. Therefore, a backlight luminance of the backlight module not only can be smoothly adjusted to the target backlight luminance at high speed for avoiding backlight flicker, but also can be adaptive to image content for saving electric power consumption.

Abstract translation: 提供了一种背光控制器，使用其的显示装置和用于控制背光模块的方法。 背光控制器包括时间加权模块和调光控制模块。 时间加权模块计算当前帧中提供的第一背光亮度和目标背光亮度的权重和作为调整的背光亮度。 根据当前帧的图像内容获得目标背光亮度。 调光控制模块根据目标背光亮度将调整后的背光亮度增加或减小步长值，并产生下一帧中提供的第二背光亮度。 因此，为了避免背光闪烁，背光源模块的背光亮度不仅可以高速地平滑地调整到目标背光亮度，而且可以适应于用于节省电力消耗的图像内容。

公开(公告)号：US20090123068A1

公开(公告)日：2009-05-14

申请号：US11939268

申请日：2007-11-13

Applicant: Ling-Hsiu Huang ,  Shing-Chia Chen

Inventor： Ling-Hsiu Huang ,  Shing-Chia Chen

IPC: G06K9/00 ,  G06K9/40

CPC classification number: G06T5/40 ,  G06T5/009

Abstract: A method for adaptively adjusting image and an image processing apparatus using the same are provided. The apparatus includes a statistics apparatus and an image adjustment apparatus. The statistics apparatus receives a plurality of pixels in an image to generate a gray-level distribution of the pixels and searches a specific gray-level according to the gray-level distribution, in which a specific percentage of pixels have gray-levels smaller than the specific gray-level. The image adjustment apparatus adjusts the image according to the specific gray-level.

Abstract translation: 提供了一种自适应调整图像的方法和使用其的图像处理装置。 该装置包括统计装置和图像调整装置。 统计装置接收图像中的多个像素以产生像素的灰度分布，并根据灰度分布搜索特定灰度级，其中特定百分比的像素的灰度级小于 具体的灰度级。 图像调整装置根据特定的灰度级调整图像。

公开(公告)号：US07522319B2

公开(公告)日：2009-04-21

申请号：US11071357

申请日：2005-03-04

Applicant: Yen-Cheng Chen ,  Shing-Chia Chen

Inventor： Yen-Cheng Chen ,  Shing-Chia Chen

IPC: H04N1/04 ,  G03B27/52

CPC classification number: H04N1/203 ,  H04N1/00885 ,  H04N2201/04724

Abstract: A duplex scanner comprising a first scanning module, a second scanning module, a transmission mechanism, a power source and a control processing unit is provided. The first scanning module scans a front side of a to-be-scanned document and captures a front side image of the to-be-scanned document. The second scanning module scans a back side of the to-be-scanned document and captures a back side image of the to-be-scanned document. The transmission mechanism moves the to-be-scanned document relatively to the first scanning module and the second scanning module. The power source outputs at least a feedback signal while driving the transmission mechanism. The control processing unit receives a scan command and accordingly controls the power source to drive the transmission mechanism. The control processing unit receives the feedback signal and accordingly controls the first scanning module and the second scanning module to proceed duplex scan.

Abstract translation: 提供一种双面扫描器，包括第一扫描模块，第二扫描模块，传输机构，电源和控制处理单元。 第一个扫描模块扫描要扫描文档的正面，并捕获要扫描的文档的正面图像。 第二扫描模块扫描被扫描文档的背面，并捕获待扫描文档的背面图像。 传输机构相对于第一扫描模块和第二扫描模块移动被扫描文件。 电源在驱动传输机构的同时至少输出反馈信号。 控制处理单元接收扫描命令，因此控制电源驱动传输机构。 控制处理单元接收反馈信号，并相应地控制第一扫描模块和第二扫描模块进行双面扫描。

公开(公告)号：US20050231771A1

公开(公告)日：2005-10-20

申请号：US11104481

申请日：2005-04-13

Applicant: Ming-Fu Hsu ,  Sei-For Hsu ,  Hung-Yi Hsu ,  Shing-Chia Chen

Inventor： Ming-Fu Hsu ,  Sei-For Hsu ,  Hung-Yi Hsu ,  Shing-Chia Chen

IPC: H04N1/04 ,  H04N1/10 ,  H04N1/193 ,  H04N1/40

CPC classification number: H04N1/1017 ,  H04N1/193 ,  H04N1/40056

Abstract: A scanner includes an optical module, a driving device, a digital gain unit and a timer. The optical module includes a photo sensing device for reading N scan lines and outputs digital image data. The driving device drives the optical module and has a position detecting device for outputting a position feedback signal corresponding to a position of the optical module. The digital gain unit performs a digital gain process on the digital image data. The timer controls the digital gain process according to the position feedback signal. The method includes setting K to 1; driving the optical module to read a Kth scan line of the to-be-scanned document and outputting Kth image data; calculating Kth exposure time for the Kth scan line and performing a digital gain process on the Kth image data; and determining if K is smaller than N.

Abstract translation: 扫描器包括光学模块，驱动装置，数字增益单元和计时器。 光学模块包括用于读取N条扫描线并输出数字图像数据的光感测装置。 驱动装置驱动光学模块，并且具有位置检测装置，用于输出对应于光学模块的位置的位置反馈信号。 数字增益单元对数字图像数据执行数字增益处理。 定时器根据位置反馈信号控制数字增益处理。 该方法包括将K设置为1; 驱动光学模块读取被扫描文档的第K条扫描线并输出第K个图像数据; 计算第K扫描线的第K次曝光时间并对第K个图像数据执行数字增益处理; 并确定K是否小于N.

公开(公告)号：US09106901B2

公开(公告)日：2015-08-11

申请号：US13219067

申请日：2011-08-26

Applicant: Shing-Chia Chen ,  Min-Che Li ,  Huang-Long Lin

Inventor： Shing-Chia Chen ,  Min-Che Li ,  Huang-Long Lin

IPC: H04N13/02 ,  G03B35/08 ,  G06T19/20

CPC classification number: H04N13/239 ,  G03B35/08 ,  G03B2205/00 ,  G06T19/20 ,  G06T2219/2016 ,  H04N13/296

Abstract: An imagery axle turning method for stereo vision and an apparatus thereof. The method turns an imagery axle of a stereo vision apparatus to capture images, and constructs a 3D image from the captured 2D images. The imagery axle turning method is realized by rotating the imagery axles of the first lens unit and second lens unit to an angle θ, so as to have different aspect ratios for the first image and second image. Thereby, the 3D image formed from the stereo vision reconstruction steps can achieve a user's expectation of capturing images with an appropriate aspect ratio. This invention also provides specific stereo vision apparatus corresponding to various applications by the imagery axle turning method.

Abstract translation: 一种用于立体视觉的图像轴转动方法及其装置。 该方法转换立体视觉设备的图像轴以捕获图像，并从捕获的2D图像构建3D图像。 通过将第一透镜单元和第二透镜单元的图像轴旋转到角度θ来实现图像轴转动方法，以便对于第一图像和第二图像具有不同的纵横比。 因此，由立体视觉重建步骤形成的3D图像可以实现用户对具有适当的纵横比的图像的期望。 本发明还提供了通过图像轴转动方法对应于各种应用的特定立体视觉设备。

公开(公告)号：US20100289827A1

公开(公告)日：2010-11-18

申请号：US12464815

申请日：2009-05-12

Applicant: Shing-Chia Chen

Inventor： Shing-Chia Chen

IPC: G09G5/10

CPC classification number: G09G3/2007 ,  G09G2320/0276 ,  G09G2370/08

Abstract: A single-gamma based color gamma generation system and method is disclosed. In one embodiment, a gamma controller generates a number of gamma curves associated with a number of colors respectively in a color space. A gamma reference voltage generator (GRVG) generates a plurality of gamma reference voltages according to one selected gamma curve associated with a selected color. An image processor receives the gamma curves and compensates the image data of non-selected color or colors.

Abstract translation: 公开了一种基于伽玛的色伽马生成系统和方法。 在一个实施例中，伽马控制器分别在颜色空间中产生与多个颜色相关联的多个伽马曲线。 伽马参考电压发生器（GRVG）根据与选择的颜色相关联的一个选择的伽马曲线产生多个伽马参考电压。 图像处理器接收伽马曲线并补偿未选择的颜色或颜色的图像数据。

公开(公告)号：US20100079504A1

公开(公告)日：2010-04-01

申请号：US12242702

申请日：2008-09-30

Applicant: Shing-Chia Chen

Inventor： Shing-Chia Chen

IPC: G09G5/10

CPC classification number: G09G3/3406 ,  G09G2320/064 ,  G09G2320/0646 ,  G09G2340/16 ,  G09G2360/16

Abstract: A backlight control system and method are disclosed. An overdrive device modifies a backlight duty signal according to a current-frame backlight duty signal and a previous-frame backlight duty signal. In one embodiment, the overdrive device is implemented with a lookup table that outputs the modified backlight duty signal. The backlight driven by the modified backlight duty signal then emits light to a display panel, thereby increasing a response time of the backlight.

Abstract translation: 公开了一种背光控制系统和方法。 过驱动装置根据当前帧背光负载信号和前一帧背光占空比信号来修改背光负载信号。 在一个实施例中，过驱动装置用输出修改的背光占空比信号的查找表来实现。 由改进的背光负载信号驱动的背光然后向显示面板发光，从而增加背光的响应时间。

公开(公告)号：US20090097777A1

公开(公告)日：2009-04-16

申请号：US11871069

申请日：2007-10-11

Applicant: Shing-Chia Chen ,  Ling-Hsiu Huang

Inventor： Shing-Chia Chen ,  Ling-Hsiu Huang

IPC: G06K9/38

CPC classification number: H04N1/4074

Abstract: A digital image tone remapping method is disclosed. The method includes computing an average luminance value of a digital image; generating a preliminary tone mapping function according to the average luminance value; generating a luminance statistic of the digital image; determining new remapped values for a plurality of skeleton luminance values according to the preliminary tone mapping function and the luminance statistic; generating a final tone mapping function according to the new remapped values and the plurality of skeleton luminance values; and remapping the digital image through the final tone mapping function. The present invention also discloses an apparatus performing the method.

Abstract translation: 公开了一种数字图像色调重映射方法。 该方法包括计算数字图像的平均亮度值; 根据平均亮度值生成初步色调映射函数; 产生数字图像的亮度统计; 根据初步色调映射函数和亮度统计量确定多个骨架亮度值的新重映射值; 根据新的重映射值和多个骨架亮度值生成最终色调映射函数; 并通过最终色调映射功能重新映射数字图像。 本发明还公开了一种执行该方法的装置。

公开(公告)号：US20090097747A1

公开(公告)日：2009-04-16

申请号：US11870232

申请日：2007-10-10

Applicant: Shing-Chia Chen ,  Ling-Hsiu Huang

Inventor： Shing-Chia Chen ,  Ling-Hsiu Huang

IPC: G06K9/00

CPC classification number: G06T5/008 ,  G06T5/40 ,  G06T2207/20021

Abstract: A method of image processing and a device thereof are provided in the present invention. First, an image having a plurality of regions is received, wherein each region comprises a plurality of pixels. A contrast process is performed on each region and a respective local curve of each region is analyzed, wherein the local curve is a corresponding relation between the gray-level values of the pixels in each region before and after the contrast process. Next, the gray-level value of one of the pixels in a boundary between one of the regions and the neighboring region is adjusted according to the respective local curves of the one of the regions and the neighboring region. The local contrast process towards to each region is performed for enhancing the image. Therefore, not only can the features be obvious, but the non-uniform area in the boundary between the regions also can be smoothed.

Abstract translation: 本发明提供一种图像处理方法及其装置。 首先，接收具有多个区域的图像，其中每个区域包括多个像素。 对每个区域进行对比度处理，并且分析每个区域的相应局部曲线，其中局部曲线是在对比过程之前和之后的每个区域中的像素的灰度值之间的对应关系。 接下来，根据区域和相邻区域之一的各自的局部曲线来调整区域之一和相邻区域之间的边界中的像素之一的灰度值。 执行朝向每个区域的局部对比过程以增强图像。 因此，不仅功能明显，而且区域之间的边界上的不均匀区域也可以平滑化。