公开(公告)号：US08457398B2

公开(公告)日：2013-06-04

申请号：US12606524

申请日：2009-10-27

Applicant: Wei-Ting Suen ,  Shing-Chia Chen

Inventor： Wei-Ting Suen ,  Shing-Chia Chen

IPC: G06K9/00 ,  G06K9/40

CPC classification number: G06T5/007 ,  G06T5/40 ,  G06T2207/20008 ,  G06T2207/20012 ,  G06T2207/20021

Abstract: An image enhancement apparatus is provided. The image enhancement apparatus includes a global contrast curve generator, a local contrast curve generator and an image generator. The global contrast curve generator generates a global contrast curve for an input image according to a global histogram of the input image. The local contrast curve generator generates a local contrast curve for each image partition within the input image according to the global contrast curve and further a feature of the image partition. The image generator generates an output image by enhancing a contrast of each image partition according to the local contrast curve for the image partition and the input image, and merging the enhanced image partitions.

Abstract translation: 提供了一种图像增强装置。 图像增强装置包括全局对比度曲线生成器，局部对比度曲线生成器和图像生成器。 全局对比度曲线生成器根据输入图像的全局直方图为输入图像生成全局对比度曲线。 局部对比度曲线生成器根据全局对比度曲线生成输入图像内每个图像分区的局部对比曲线，并进一步绘制图像分区的特征。 图像生成器通过根据图像分区和输入图像的局部对比度曲线增强每个图像分区的对比度并且合并增强图像分区来生成输出图像。

公开(公告)号：US08280184B2

公开(公告)日：2012-10-02

申请号：US12752270

申请日：2010-04-01

Applicant: Shing-Chia Chen ,  Biing-Seng Wu ,  Lin-Kai Bu ,  Kuei-Hsiang Chen

Inventor： Shing-Chia Chen ,  Biing-Seng Wu ,  Lin-Kai Bu ,  Kuei-Hsiang Chen

IPC: G06K9/40

CPC classification number: G06T5/007 ,  G06T2207/20012 ,  G06T2207/20016 ,  G06T2207/20021 ,  G09G3/2011 ,  G09G3/3406 ,  G09G2320/064 ,  G09G2320/0646 ,  G09G2320/0673

Abstract: An image enhancement apparatus is provided. The image enhancement apparatus includes a global tone mapping curve generator, a local tone mapping curve generator, a reference gamma voltage generator and an image generator. The global tone mapping curve generator generates a global tone mapping curve for an input image according to global characteristic(s) of the input image. The local tone mapping curve generator generates a local tone mapping curve for each image partition within the input image according to the global tone mapping curve and further a feature of the image partition. The reference gamma voltage generator generates a plurality of reference gamma voltages for each image partition according to the corresponding local tone mapping curve for the image partition. The image generator generates an output image according to the reference gamma voltages of the image partitions and the input image.

Abstract translation: 提供了一种图像增强装置。 图像增强装置包括全局色调映射曲线发生器，局部色调映射曲线发生器，参考伽马电压发生器和图像发生器。 全局色调映射曲线生成器根据输入图像的全局特性为输入图像生成全局色调映射曲线。 本地色调映射曲线生成器根据全局色调映射曲线生成输入图像内的每个图像分区的本地色调映射曲线，并且还可以生成图像分区的特征。 参考伽马电压发生器根据图像分区的相应局部色调映射曲线为每个图像分区生成多个参考伽玛电压。 图像发生器根据图像分区和输入图像的参考伽玛电压生成输出图像。

公开(公告)号：US20120147196A1

公开(公告)日：2012-06-14

申请号：US13080277

申请日：2011-04-05

Applicant: En Ping Lin ,  Shing Chia Chen ,  Min Che Li

Inventor： En Ping Lin ,  Shing Chia Chen ,  Min Che Li

IPC: H04N17/00

CPC classification number: G02B5/08 ,  G02B26/04 ,  H04N5/3572 ,  H04N13/133 ,  H04N13/211 ,  H04N13/246 ,  H04N17/002

Abstract: This invention provides a calibration method and a corresponding apparatus for optical imaging lens system with double optical paths. The apparatus for optical imaging lens system with double optical paths comprises a first optical subsystem, a second optical subsystem and a calibration module. The calibration module receives a first image data from the first optical subsystem and a second image data from the second optical subsystem. The calibration module calibrates the first image data according to at least one selected optical parameter of the second optical subsystem, and calibrates the second image data according to at least one selected optical parameter of the first optical subsystem. The selected optical parameters of the first optical subsystem and the second optical subsystem are different.

Abstract translation: 本发明提供一种具有双光路的光学成像透镜系统的校准方法和相应的装置。 具有双光路的光学成像透镜系统的装置包括第一光学子系统，第二光学子系统和校准模块。 校准模块从第一光学子系统接收第一图像数据和来自第二光学子系统的第二图像数据。 校准模块根据第二光学子系统的至少一个选择的光学参数来校准第一图像数据，并且根据第一光学子系统的至少一个所选择的光学参数校准第二图像数据。 所选择的第一光学子系统和第二光学子系统的光学参数是不同的。

公开(公告)号：US08107756B2

公开(公告)日：2012-01-31

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: G06K9/40

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：US08094957B2

公开(公告)日：2012-01-10

申请号：US11765953

申请日：2007-06-20

Applicant: Ling Shiou Huang ,  Shing Chia Chen

Inventor： Ling Shiou Huang ,  Shing Chia Chen

IPC: G06K9/40

CPC classification number: H04N9/68

Abstract: An apparatus includes an extractor, a first subtractor, a second subtractor, a third subtractor, an offset generator and an adder. The extractor receives the color pixel and to provides a first, a second, and a third image value, wherein the first, the second, and the third image values are associated with the brightness of the color pixel. The first subtractor calculates a first offset between the first image value and a first expected image value. The second subtractor calculates a first difference between the first and the second image values. The third subtractor calculates a second difference between the first and the third image values. The offset generator defines a linear relation based on the first offset and the first image value, and generates a second and a third offset. The adder receives the second offset, the third offset, the second image value and the third image value to generate a second and a third expected image value.

Abstract translation: 一种装置包括提取器，第一减法器，第二减法器，第三减法器，偏移发生器和加法器。 提取器接收彩色像素并提供第一，第二和第三图像值，其中第一，第二和第三图像值与彩色像素的亮度相关联。 第一减法器计算第一图像值和第一预期图像值之间的第一偏移。 第二减法器计算第一和第二图像值之间的第一差值。 第三减法器计算第一和第三图像值之间的第二差值。 偏移生成器基于第一偏移和第一图像值来定义线性关系，并且产生第二和第三偏移。 加法器接收第二偏移量，第三偏移量，第二图像值和第三图像值，以产生第二和第三预期图像值。

公开(公告)号：US20110243473A1

公开(公告)日：2011-10-06

申请号：US12752270

申请日：2010-04-01

Applicant: Shing-Chia Chen ,  Biing-Seng Wu ,  Lin-Kai Bu ,  Kuei-Hsiang Chen

Inventor： Shing-Chia Chen ,  Biing-Seng Wu ,  Lin-Kai Bu ,  Kuei-Hsiang Chen

IPC: G06K9/40

CPC classification number: G06T5/007 ,  G06T2207/20012 ,  G06T2207/20016 ,  G06T2207/20021 ,  G09G3/2011 ,  G09G3/3406 ,  G09G2320/064 ,  G09G2320/0646 ,  G09G2320/0673

Abstract: An image enhancement apparatus is provided. The image enhancement apparatus includes a global tone mapping curve generator, a local tone mapping curve generator, a reference gamma voltage generator and an image generator. The global tone mapping curve generator generates a global tone mapping curve for an input image according to global characteristic(s) of the input image. The local tone mapping curve generator generates a local tone mapping curve for each image partition within the input image according to the global tone mapping curve and further a feature of the image partition. The reference gamma voltage generator generates a plurality of reference gamma voltages for each image partition according to the corresponding local tone mapping curve for the image partition. The image generator generates an output image according to the reference gamma voltages of the image partitions and the input image.

Abstract translation: 提供了一种图像增强装置。 图像增强装置包括全局色调映射曲线发生器，局部色调映射曲线发生器，参考伽马电压发生器和图像发生器。 全局色调映射曲线生成器根据输入图像的全局特性为输入图像生成全局色调映射曲线。 本地色调映射曲线生成器根据全局色调映射曲线生成输入图像内的每个图像分区的本地色调映射曲线，并且还可以生成图像分区的特征。 参考伽马电压发生器根据图像分区的相应局部色调映射曲线为每个图像分区生成多个参考伽玛电压。 图像发生器根据图像分区和输入图像的参考伽玛电压生成输出图像。

公开(公告)号：US07881556B2

公开(公告)日：2011-02-01

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: G06K9/40

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。

公开(公告)号：US20100289944A1

公开(公告)日：2010-11-18

申请号：US12464802

申请日：2009-05-12

Applicant: Shing-Chia Chen ,  Ling-Hsiu Huang

Inventor： Shing-Chia Chen ,  Ling-Hsiu Huang

IPC: H04N7/01 ,  H04N5/57

CPC classification number: G09G3/3406 ,  G09G2320/0646 ,  G09G2340/0435 ,  G09G2360/144 ,  G09G2360/16 ,  H04N7/0132

Abstract: A frame rate up-conversion (FRUC) based dynamic backlight control (DBLC) system and method are disclosed. A frame rate up-conversion (FRUC) unit increases frame rate by adding at least one image frame in a video display, and a dynamic backlight control (DBLC) unit adjusts backlight luminance in the video display. The DBLC unit operates at an original frame rate, and adjusts the backlight luminance for the added image frame according to statistical information about the added image frame derived from the FRUC unit.

Abstract translation: 公开了一种基于帧速上变频（FRUC）的动态背光控制（DBLC）系统和方法。 帧速上变频（FRUC）单元通过在视频显示中添加至少一个图像帧来增加帧速率，并且动态背光控制（DBLC）单元调整视频显示中的背光亮度。 DBLC单元以原始帧速率工作，并且根据关于从FRUC单元导出的添加的图像帧的统计信息来调整添加的图像帧的背光亮度。

公开(公告)号：US07746513B2

公开(公告)日：2010-06-29

申请号：US11098304

申请日：2005-04-04

Applicant: Yen-Cheng Chen ,  Shing-Chia Chen

Inventor： Yen-Cheng Chen ,  Shing-Chia Chen

IPC: H04N1/04

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

Abstract: A scanner including a light source, an optical module, a driving device, and a control unit is provided. The light source emits a light beam to the to-be-scanned document. The optical module includes a photo sensing device for receiving the light beam reflected by the to-be-scanned document. The driving device includes a position detecting device, for detecting a position of the optical module relative to the to-be-scanned document, and outputting a position feedback signal accordingly. The control unit includes a light source controller and a timer. The scanning method includes the steps of setting the value of K to 1; moving the optical module to read the Kth scan line and adjusting the luminance of the light source to compensate exposure level of the (K+1)th scan line; and determining if K is smaller than N.

Abstract translation: 提供了包括光源，光学模块，驱动装置和控制单元的扫描仪。 光源向被扫描的文件发射光束。 光学模块包括用于接收被扫描文档反射的光束的光感测装置。 驱动装置包括位置检测装置，用于检测光学模块相对于被扫描文件的位置，并相应地输出位置反馈信号。 控制单元包括光源控制器和定时器。 扫描方法包括将K值设定为1的步骤; 移动光学模块读取第K扫描线并调整光源的亮度以补偿第（K + 1）扫描线的曝光电平; 并确定K是否小于N.

公开(公告)号：US07657121B2

公开(公告)日：2010-02-02

申请号：US11505862

申请日：2006-08-18

Applicant: Shing-Chia Chen

Inventor： Shing-Chia Chen

IPC: H04N7/00 ,  G06K9/32 ,  H04N1/00

CPC classification number: H04N1/40056 ,  H04N1/0035 ,  H04N1/00442 ,  H04N1/0402 ,  H04N1/0408 ,  H04N1/0455 ,  H04N1/193 ,  H04N2201/0416

Abstract: A method for simultaneously capturing images of multiple areas is applied to an image processing device. The method includes scanning a document and obtaining a preview image of the document; providing N scan windows for selecting N to-be-scanned areas from the preview image, wherein N is an integer; setting N scan resolutions respectively for the N scan windows; scanning the document; and outputting N scan images corresponding to the N scan windows according to N frequencies of a timing signal corresponding to the N scan resolutions.

Abstract translation: 一种用于同时捕获多个区域的图像的方法被应用于图像处理装置。 该方法包括扫描文档并获得文档的预览图像; 提供用于从预览图像中选择N个待扫描区域的N个扫描窗口，其中N是整数; 分别为N个扫描窗口设置N个扫描分辨率; 扫描文件; 并且根据对应于N个扫描分辨率的定时信号的N个频率输出与N个扫描窗口对应的N个扫描图像。