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31.发明授权Method for controlling exposure level of frame in image sensor, computer readable recording media for performing the method, and image processing system 有权用于控制图像传感器中的帧的曝光水平的方法，用于执行该方法的计算机可读记录介质和图像处理系统公开(公告)号：US09438812B2
公开(公告)日：2016-09-06
申请号：US14332320
申请日：2014-07-15
发明人： Po-Fang Chen , Po-Chang Chen , Yuan-Chih Peng
CPC分类号： H04N5/2352 , H04N5/2356 , H04N5/243 , H04N5/3535 , H04N5/35554 , H04N5/378
摘要： A method for controlling a frame exposure level, comprising: (a) determining a second integration time for the pixel array via a desired exposure level, and determining a second analog gain and a second digital gain via a desired total gain; (b) respectively applying the second analog gain and the second digital gain to amplify at least one second light sensing signal and at least one digital light sensing signal generated from the second light sensing signal; (c) computing a desired total gain for the third frame, and determining a third analog gain and a third digital gain via the desired total gain; and (d) respectively applying the third analog gain and the third digital gain to amplify at least one third light sensing signal and at least one digital light sensing signal generated from the third light sensing signal, and applying the second integration time to the pixel array.
摘要翻译： 一种用于控制帧曝光电平的方法，包括：（a）经由期望的曝光电平确定像素阵列的第二积分时间，以及经由期望的总增益确定第二模拟增益和第二数字增益; （b）分别施加第二模拟增益和第二数字增益以放大至少一个第二光感测信号和从第二光感测信号产生的至少一个数字光感测信号; （c）计算第三帧的期望总增益，以及经由期望的总增益确定第三模拟增益和第三数字增益; 和（d）分别施加第三模拟增益和第三数字增益以放大至少一个第三光感测信号和从第三光感测信号产生的至少一个数字光感测信号，并将第二积分时间应用于像素阵列 。
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公开(公告)号：US20160105599A1
公开(公告)日：2016-04-14
申请号：US14512463
申请日：2014-10-12
发明人： Po-Chang Chen
CPC分类号： H04N5/23212
摘要： An automatic focus searching method for an image capture device is provided. The image capture device has a lens and an image sensor. The method includes: setting an exposure time of the image sensor; computing a focal sweep trajectory of the lens based on at least the exposure time; during the exposure time, moving the lens along the focal sweep trajectory while exposing the image sensor; reading out pixel data of the image sensor that is generated during the exposure time; and applying a filtering operation upon the pixel data to generate an output image.
摘要翻译： 提供了一种用于图像捕获装置的自动对焦搜索方法。 图像捕获装置具有透镜和图像传感器。 该方法包括：设置图像传感器的曝光时间; 至少基于曝光时间计算透镜的焦点扫描轨迹; 在曝光时间期间，在曝光图像传感器的同时沿着焦点扫描轨迹移动透镜; 读出在曝光时间期间产生的图像传感器的像素数据; 以及对像素数据应用滤波操作以产生输出图像。
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公开(公告)号：US20150365643A1
公开(公告)日：2015-12-17
申请号：US14303307
申请日：2014-06-12
发明人： MiaoHong SHI
CPC分类号： H01L27/14643 , G02B5/201 , G06T3/4015 , H01L27/14621 , H01L27/14667 , H01L27/14685 , H04N5/142 , H04N9/045 , H04N2209/045 , H04N2209/046
摘要： A method of color processing includes providing a color and white filter array placed over an image sensor, thereby generating converted color and white signals; interpolating the converted white signals to generate interpolated white signals; interpolating white-chroma differences between the converted color signals and the converted white signals to generate interpolated white-chroma difference signals; and transforming the interpolated white signal and the interpolated white-chroma difference signals into a color space, thereby generating transformed color signals.
摘要翻译： 一种颜色处理方法包括提供放置在图像传感器上的彩色和白色滤光器阵列，从而产生转换的彩色和白色信号; 内插转换的白色信号以产生内插的白色信号; 内插经转换的彩色信号与经转换的白色信号之间的白色差异，以产生内插的白色色差信号; 以及将内插的白色信号和内插的白色差异信号变换为颜色空间，从而生成变换的颜色信号。
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公开(公告)号：US09204074B2
公开(公告)日：2015-12-01
申请号：US14229075
申请日：2014-03-28
发明人： Dong-Long Lin , Chung-Ren Li
IPC分类号： H01L27/14 , H04N5/378 , H01L27/146 , H04N5/374
CPC分类号： H04N5/378 , H01L27/14609 , H01L27/14612 , H01L27/14643 , H04N5/374
摘要： A pixel circuit includes a plurality of pixel units, and one of the pixel units includes a photosensor, a readout circuit, and a switch circuit. The readout circuit is coupled to a supply voltage and the photosensor, which includes a floating diffusion node for storing data of the photosensor and an output node for outputting data of the floating diffusion node. The switch circuit is coupled between the photosensor and a tail node, wherein the tail node is coupled to the floating diffusion node of another pixel unit.
摘要翻译： 像素电路包括多个像素单元，并且像素单元中的一个包括光电传感器，读出电路和开关电路。 读出电路耦合到电源电压，光电传感器包括用于存储光传感器的数据的浮动扩散节点和用于输出浮动扩散节点的数据的输出节点。 开关电路耦合在光传感器和尾节点之间，其中尾节点耦合到另一像素单元的浮动扩散节点。
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公开(公告)号：US20150341537A1
公开(公告)日：2015-11-26
申请号：US14284215
申请日：2014-05-21
发明人： Yuan-Chih Peng
CPC分类号： H04N5/2355 , G06K9/46 , G06K9/4642 , G06T5/008 , G06T5/20 , G06T5/40 , G06T5/50 , G06T2207/20021 , G06T2207/20208 , H04N5/235 , H04N5/2351 , H04N5/243 , H04N5/353 , H04N5/35536
摘要： An embodiment of a local enhancement apparatus is provided, in which a block divider divides an image into a plurality of blocks, and a first enhancement unit performs a brightness-preserved enhancement on each block of the plurality of blocks to generate a brightness-preserved block. A second enhancement unit performs a brightness-adjusted enhancement on the each block to generate a brightness-adjusted block. A scene dynamic range estimator generates a dynamic range of the image according to characteristics of the image. A blender blends the brightness-preserved blocks and the brightness-adjusted blocks to generate an enhanced image based on the dynamic range.
摘要翻译： 提供了一种局部增强装置的实施例，其中块分割器将图像划分成多个块，并且第一增强单元对多个块的每个块执行亮度保持增强以生成亮度保留块 。 第二增强单元对每个块执行亮度调整的增强以产生亮度调节块。 场景动态范围估计器根据图像的特征生成图像的动态范围。 混合器将亮度保留块和亮度调整块混合，以基于动态范围生成增强图像。
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公开(公告)号：US09185377B1
公开(公告)日：2015-11-10
申请号：US14316568
申请日：2014-06-26
发明人： Yuan-Chih Peng , Dong-Long Lin , Po-Chang Chen
摘要： A color processing system includes a color interpolation unit coupled to receive color and white (W) signals and accordingly generate interpolated white signals and difference signals; a color correction unit configured to correct the difference signals, thereby resulting in corrected color signals; and a sensitivity control unit configured to generate adjusted color signals according to the corrected color signals, the interpolated white signals, and surrounding illumination.
摘要翻译： 颜色处理系统包括耦合以接收彩色和白色（W）信号并因此产生内插白色信号和差分信号的颜色内插单元; 配置为校正差异信号的颜色校正单元，从而得到校正的颜色信号; 以及灵敏度控制单元，被配置为根据校正的颜色信号，内插的白色信号和周围照明产生调整的颜色信号。
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37.发明申请MULTI-EXPOSURE IMAGING SYSTEM AND METHOD FOR ELIMINATING ROLLING SHUTTER FLICKER 有权多曝光成像系统和消除滚筒快门闪光的方法公开(公告)号：US20150312464A1
公开(公告)日：2015-10-29
申请号：US14261827
申请日：2014-04-25
发明人： Yuan-Chih Peng
CPC分类号： H04N5/2357 , H04N5/3532 , H04N5/35581 , H04N5/374
摘要： A method for eliminating flicker of a multi-exposure imaging system is provided. The method includes the steps of: capturing a long exposure image based on a long exposure from a scene; capturing a short exposure image based on a short exposure from the scene; obtaining an exposure ratio of the long exposure to the short exposure; generating a long accumulated value by accumulating pixel values of a portion of the long exposure image; generating a short accumulated value by accumulating pixel values of a portion of the short exposure image corresponding to the portion of the long exposure image; and generating a flicker gain according to the long average value, the short average value and the exposure ratio.
摘要翻译： 提供一种消除多曝光成像系统的闪烁的方法。 该方法包括以下步骤：基于来自场景的长曝光来捕获长曝光图像; 基于来自场景的短曝光捕获短曝光图像; 获得长时间暴露于短期暴露的曝光比; 通过累积长曝光图像的一部分的像素值来产生长的累积值; 通过累积与所述长曝光图像的所述部分相对应的所述短曝光图像的一部分的像素值来产生短累积值; 并根据长平均值，短平均值和曝光比产生闪烁增益。
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公开(公告)号：US09118879B2
公开(公告)日：2015-08-25
申请号：US14156104
申请日：2014-01-15
发明人： Yi-Nung Liu , Chih-Tsung Shen , Po-Yen Su , Huan-Pin Tseng
摘要： A camera array system includes an image sensor device, a hybrid color filter array disposed above the image sensor device, and a lens array disposed above the hybrid color filter array. The hybrid color filter array includes plural kinds of monochromatic color filters and at least one mosaic filter; and the lens array includes a number of optic lenses. The at least one mosaic filter is utilized to perform stereo matching in order to estimate depth information.
摘要翻译： 相机阵列系统包括图像传感器设备，设置在图像传感器设备上方的混合滤色器阵列，以及设置在混合滤色器阵列上方的透镜阵列。 混合滤色器阵列包括多种单色滤色器和至少一个马赛克滤色器; 并且透镜阵列包括多个光学透镜。 所述至少一个马赛克滤波器用于执行立体匹配以便估计深度信息。
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公开(公告)号：US20150200217A1
公开(公告)日：2015-07-16
申请号：US14207669
申请日：2014-03-13
发明人： Dong-Long Lin , Chung-Ren Li , Chung-Wei Chang
IPC分类号： H01L27/146
CPC分类号： H01L27/14643 , H01L27/14609 , H01L27/14665 , H04N5/35518 , H04N5/3745
摘要： A pixel circuit includes: a photodetector, a signal adjustment circuit and a switch circuit. The photodetector is employed for generating an output signal in response to light that is incident thereon. The signal adjustment circuit is coupled to the photodetector, and employed for selectively adjusting the output signal to allow the output signal to have a plurality of different logarithmic functions in respect to an intensity of the light. The switch circuit is coupled to the signal adjustment circuit and the photodetector, and employed for coupling the photodetector to the signal adjustment circuit.
摘要翻译： 像素电路包括：光电检测器，信号调节电路和开关电路。 光电检测器用于响应于入射到其上的光而产生输出信号。 信号调节电路耦合到光电检测器，并用于选择性地调节输出信号以允许输出信号相对于光的强度具有多个不同的对数函数。 开关电路耦合到信号调节电路和光电检测器，并用于将光电检测器耦合到信号调节电路。
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公开(公告)号：US09083900B2
公开(公告)日：2015-07-14
申请号：US14072737
申请日：2013-11-05
发明人： Po-Chang Chen
CPC分类号： H04N5/3572
摘要： A lens shading correction (LSC) system includes an illuminant estimator configured to calculate at least one spectral association-measurement of a current frame according to pixel data of an LSC circuit, and then to correlate the at least one calculated spectral association-measurement with spectral association-measurements of a plurality of pre-defined illuminants to determine at least one correlated illuminant. An LSC parameter generator retrieves at least one set of pre-calibrated LSC parameters from a pre-calibrated LSC parameter memory. The LSC parameter generator generates a set of LSC parameters based on the at least one retrieved set of pre-calibrated LSC parameters according to the at least one correlated illuminant.
摘要翻译： 透镜阴影校正（LSC）系统包括光源估计器，被配置为根据LSC电路的像素数据来计算当前帧的至少一个光谱关联度量，然后将至少一个计算的光谱关联测量与光谱相关联 多个预定义光源的关联测量以确定至少一个相关光源。 LSC参数发生器从预校准的LSC参数存储器检索至少一组预校准的LSC参数。 所述LSC参数发生器根据所述至少一个检索到的所述至少一个相关光源的预校准LSC参数集合生成一组LSC参数。
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