公开(公告)号：US20130033585A1

公开(公告)日：2013-02-07

申请号：US13412730

申请日：2012-03-06

申请人： DONG LI ,  Qun Sun

发明人： DONG LI ,  Qun Sun

IPC分类号： H04N13/04

CPC分类号： H04N13/133 ,  H04N13/15 ,  H04N13/239 ,  H04N13/243 ,  H04N13/246

摘要： An apparatus and a method for color compensation in multi-view video is provided. Video sequences corresponding to a common scene of interest are captured and processed using the master and slave channels respectively. A compensation gain is calculated based on a set of global color ratio statistics obtained from the master and slave channels. The compensation gain is applied to the slave channel. An initial master color correction matrix is combined with a master color matching matrix to obtain a final master color correction matrix. The initial slave color correction matrix is combined with a slave color matching matrix to obtain a final slave color correction matrix. The master and gain-compensated slave channels are color-compensated by applying the final master and final slave color correction matrices to the master and gain-compensated slave channels, respectively.

摘要翻译： 提供了一种用于多视点视频中的色彩补偿的装置和方法。 使用主通道和从通道分别捕获并处理与感兴趣的共同场景相对应的视频序列。 基于从主通道和从通道获得的一组全局色彩比率计算补偿增益。 补偿增益应用于从通道。 将初始主色彩校正矩阵与主色匹配矩阵组合以获得最终主色彩校正矩阵。 将初始从色彩校正矩阵与从属色匹配矩阵组合以获得最终的从色校正矩阵。 主和增益补偿的从通道分别通过将最终的主和最后的从色彩校正矩阵应用于主和增益补偿的从通道来进行颜色补偿。

公开(公告)号：US08368789B2

公开(公告)日：2013-02-05

申请号：US12323802

申请日：2008-11-26

申请人： Chen Xu ,  Yaowu Mo

发明人： Chen Xu ,  Yaowu Mo

IPC分类号： H04N5/335 ,  H03K3/38 ,  H03K3/01 ,  H03F3/45

CPC分类号： H04N5/357 ,  G05F1/561 ,  G05F3/30

摘要： Systems and methods for providing one or more reference currents with respective negative temperature coefficients are provided. A first voltage is divided to provide a divided voltage, which is compared to a reference voltage (e.g., a bandgap reference voltage) to provide a control voltage. The first voltage and the one or more reference currents are based on the control voltage.

摘要翻译： 提供了用于提供具有相应的负温度系数的一个或多个参考电流的系统和方法。 第一电压被分压以提供分压，其与参考电压（例如，带隙参考电压）进行比较以提供控制电压。 第一电压和一个或多个参考电流基于控制电压。

公开(公告)号：US08330840B2

公开(公告)日：2012-12-11

申请号：US12537128

申请日：2009-08-06

申请人： Victor Lenchenkov

发明人： Victor Lenchenkov

IPC分类号： H04N5/335

CPC分类号： H01L31/02165 ,  H01L27/14621 ,  H01L27/14627

摘要： Image sensors are provided for electronic imaging devices. An image sensor can be formed from an array of image pixels. Bragg-type multilayer interference filters can be formed for the image sensor using dielectric layers with alternating high and low indices of refraction. The multilayer interference filters can be configured to form band-pass filters of desired colors and infrared-blocking filters. Dielectric layers with non-flat bulk absorption properties may be used to tune the absorption of the filters. The interference filters may be provided in a uniform pattern so that an image sensor exhibits a monochrome response or may be arranged in a multicolor color filter array pattern such as a Bayer pattern.

摘要翻译： 为电子成像设备提供图像传感器。 图像传感器可以由图像像素阵列形成。 可以使用具有交替的高和低折射率的电介质层来形成用于图像传感器的布拉格型多层干涉滤光器。 多层干涉滤波器可以被配置成形成所需颜色的带通滤波器和红外阻挡滤波器。 可以使用具有非平坦体积吸收特性的介电层来调节过滤器的吸收。 可以以均匀的图案提供干涉滤光片，使得图像传感器呈现单色响应，或者可以以多色滤色器阵列图案布置，例如拜耳图案。

公开(公告)号：US08304707B2

公开(公告)日：2012-11-06

申请号：US12393812

申请日：2009-02-26

申请人： Ji Soo Lee ,  Jeff A. Mckee ,  Chandra Mouli

发明人： Ji Soo Lee ,  Jeff A. Mckee ,  Chandra Mouli

IPC分类号： H01L27/00

CPC分类号： H01L27/14625 ,  H01L27/14609 ,  H01L27/14623 ,  H01L27/14627 ,  H01L27/14643

摘要： A device and method for providing an optical guide of a pixel to guide incoming light to/from a photo-conversion device of the pixel to improve the optical crosstalk immunity. The optical guide includes an optically reflecting barrier formed as a trench filled with a material which produces reflection. The trench fill material may have an index of refraction that is less than the index of refraction of the material used for the trench surrounding layers to provide a light reflective structure or the trench fill material may provide a reflection surface.

摘要翻译： 一种用于提供像素的光导以将来自/来自像素的光转换装置的入射光引导以提高光学串扰抗扰度的装置和方法。 光导包括形成为填充有产生反射的材料的沟槽的光反射势垒。 沟槽填充材料可以具有小于用于沟槽周围层的材料的折射率以提供光反射结构或者沟槽填充材料可以提供反射表面的折射率。

公开(公告)号：US20120273854A1

公开(公告)日：2012-11-01

申请号：US13173596

申请日：2011-06-30

申请人： Sergey Velichko ,  Jingyi Bai

发明人： Sergey Velichko ,  Jingyi Bai

IPC分类号： H01L31/113 ,  H01L21/265

CPC分类号： H01L27/1461 ,  H01L21/26586 ,  H01L27/14612 ,  H01L27/14623

摘要： A global shutter pixel cell includes a serially connected anti-blooming (AB) transistor, storage gate (SG) transistor and transfer (TX) transistor. The serially connected transistors are coupled between a voltage supply and a floating diffusion (FD) region. A terminal of a photodiode (PD) is connected between respective terminals of the AB and the SG transistors; and a terminal of a storage node (SN) diode is connected between respective terminals of the SG and the TX transistors. A portion of the PD region is extended under the SN region, so that the PD region shields the SN region from stray photons. Furthermore, a metallic layer, disposed above the SN region, is extended downwardly toward the SN region, so that the metallic layer shields the SN region from stray photons. Moreover, a top surface of the metallic layer is coated with an anti-reflective layer.

摘要翻译： 全局快门像素单元包括串联连接的防晕（AB）晶体管，存储栅极（SG）晶体管和传输（TX）晶体管。 串联连接的晶体管耦合在电压源和浮动扩散（FD）区域之间。 光电二极管（PD）的端子连接在AB和SG晶体管的各个端子之间; 并且存储节点（SN）二极管的端子连接在SG和TX晶体管的各个端子之间。 PD区域的一部分在SN区域下延伸，使得PD区域将SN区域与杂散光子屏蔽。 此外，设置在SN区域上方的金属层向下延伸到SN区域，使得金属层将SN区域与杂散光子屏蔽。 此外，金属层的顶表面涂覆有抗反射层。

公开(公告)号：US20120273652A1

公开(公告)日：2012-11-01

申请号：US13176945

申请日：2011-07-06

申请人： VICTOR LENCHENKOV

发明人： VICTOR LENCHENKOV

IPC分类号： H01L27/146 ,  H01L31/0232

CPC分类号： H01L31/02327 ,  H01L27/1462 ,  H01L27/14629 ,  H01L31/02165 ,  H01L31/103

摘要： Systems and methods for image sensing are disclosed. An image sensor includes a pixel having an active region and a plurality of reflective interfaces. The active region is configured to convert light absorbed by the pixel into an electrical signal. The plurality of reflective interfaces cause the light absorbed by the pixel to resonate within the active region. A method for converting absorbed light into an electrical signal with an image sensor includes absorbing light with the pixel of the image sensor, and reflecting the absorbed light with a plurality of reflective interfaces embedded in the pixel to generate a resonance within the active region.

摘要翻译： 公开了用于图像感测的系统和方法。 图像传感器包括具有有源区和多个反射界面的像素。 有源区域被配置为将由像素吸收的光转换成电信号。 多个反射界面使由像素吸收的光在有源区域内谐振。 利用图像传感器将吸收的光转换成电信号的方法包括用图像传感器的像素吸收光，并且用嵌入在像素中的多个反射界面反射吸收的光，以在有源区内产生谐振。

公开(公告)号：US08295659B2

公开(公告)日：2012-10-23

申请号：US12884233

申请日：2010-09-17

申请人： Hong-Wei Lee

发明人： Hong-Wei Lee

IPC分类号： G02B6/12 ,  G01J1/04

CPC分类号： H01L27/14625 ,  H01L27/14632 ,  H01L27/14685

摘要： An anti-resonant reflecting optical waveguide structure for reducing optical crosstalk in an image sensor and method of forming the same. The method includes forming a trench within a plurality of material layers and over a photo-conversion device. The trench is vertically aligned with the photo-conversion device and is filled with materials of varying refractive indices to form an anti-resonant reflecting optical waveguide structure. The anti-resonant reflecting optical waveguide structure has a core and at least two cladding structures. The cladding structure in contact with the core has a refractive index that is higher than the refractive index of the core and the refractive index of the other cladding structure. The cladding structures act as Fabry-Perot cavities for light propagating in the transverse direction, such that light entering the anti-resonant reflecting optical waveguide structure remains confined to the core. This reduces the chance of photons impinging upon neighboring photo-conversion devices.

摘要翻译： 一种用于减少图像传感器中的光学串扰的反谐振反射光波导结构及其形成方法。 该方法包括在多个材料层内和光转换装置上形成沟槽。 沟槽与光转换装置垂直对准，并且填充有折射率变化的材料以形成反谐振反射光波导结构。 反谐振反射光波导结构具有芯和至少两个包层结构。 与芯接触的包层结构的折射率高于芯的折射率和另一个包层结构的折射率。 包层结构作为用于在横向上传播的光的法布里 - 珀罗腔，使得进入反谐振反射光波导结构的光保持局限于核心。 这减少了光子撞击相邻光转换器件的机会。

公开(公告)号：US08294811B2

公开(公告)日：2012-10-23

申请号：US12535331

申请日：2009-08-04

申请人： Prajit Kulkarni

发明人： Prajit Kulkarni

IPC分类号： G03B13/00 ,  H04N5/232

CPC分类号： G03B13/36

摘要： This is generally directed to auto-focusing techniques based on statistical blur estimation. An image can be captured at two or more candidate lens positions. The amount of blur of each image can then be determined, and the image containing the least amount of blur can be chosen as the “in-focus” image. In some embodiments, the amount of blur of an image can be determined by identifying how “Gaussian” an image is. Characteristics that are more Gaussian in nature can indicate that the image is more blurry. The Gaussianity of an image can be determined by estimating a generalized Gaussian shape parameter for that image. A smaller shape parameter can indicate the image is less Gaussian in nature. The shape parameter can be estimated in any suitable manner such as, for example, through a 2-d discrete wavelet transform, through a 1-d discrete wavelet transform, or through any other suitable manner.

摘要翻译： 这通常针对基于统计模糊估计的自动聚焦技术。 可以在两个或更多个候选镜头位置捕获图像。 然后可以确定每个图像的模糊量，并且可以选择包含最少量的模糊的图像作为对焦图像。 在一些实施例中，可以通过识别图像的高斯如何来确定图像的模糊量。 性质更高斯的特征可以表明图像更模糊。 可以通过估计该图像的广义高斯形状参数来确定图像的高斯值。 较小的形状参数可以表示图像本质上不太高斯。 可以以任何合适的方式估计形状参数，例如通过2-d离散小波变换，通过1-d离散小波变换，或通过任何其它合适的方式。

公开(公告)号：US08284293B2

公开(公告)日：2012-10-09

申请号：US12831552

申请日：2010-07-07

申请人： Andrea Del Monte

发明人： Andrea Del Monte

IPC分类号： H04N5/232 ,  G03B13/00

CPC分类号： H04N5/2253 ,  H01L27/14621 ,  H01L27/14627 ,  H01L27/14649

摘要： An image sensor has an array of image sensor pixels. Each image sensor pixel may have a gradient index lens formed in a passivation layer. The gradient index lens may be a converging or diverging gradient index lens. The gradient index lens may have a gradient index profile that is smooth or a gradient index profile having distinct regions of lower or higher refractive index. Regions of lower refractive index may be formed from ion implantation in the passivation layer. Each pixel may also have a polymer microlens, a color filter, a dielectric stack, and a photosensitive element in a substrate.

摘要翻译： 图像传感器具有图像传感器像素阵列。 每个图像传感器像素可以具有形成在钝化层中的梯度折射率透镜。 梯度折射率透镜可以是会聚或发散梯度折射率透镜。 梯度折射率透镜可以具有平滑的梯度折射率分布或具有较低或较高折射率的不同区域的梯度折射率分布。 低折射率区域可以由钝化层中的离子注入形成。 每个像素还可以在衬底中具有聚合物微透镜，滤色器，电介质叠层和感光元件。

公开(公告)号：US20120249842A1

公开(公告)日：2012-10-04

申请号：US13093298

申请日：2011-04-25

申请人： DONGSOO KIM

发明人： DONGSOO KIM

IPC分类号： H04N5/217

CPC分类号： H04N5/3742 ,  H04N5/3456 ,  H04N5/347 ,  H04N5/3658 ,  H04N5/378

摘要： A system for correcting a column line failure in an imager includes a pixel selection circuit configured to receive three adjacent pixel output signals, P(n−1), P(n) and P(n+1), respectively, from three adjacent column lines, (n−1)th column line, nth column line and (n+1)th column line. The (n−1)th column line is disposed left of an nth column line, and the (n+1)th column line is disposed right of the nth column line. A generator for generating a bit pattern is also included for indicating a column line failure in the three adjacent column lines. The pixel selection circuit is configured to provide a pixel output signal from one of the three adjacent column lines, based on the bit pattern.

摘要翻译： 用于校正成像器中的列线故障的系统包括：像素选择电路，被配置为分别从三个相邻列接收三个相邻像素输出信号P（n-1），P（n）和P（n + 1） 线，（n-1）列线，第n列线和第（n + 1）列线。 第（n-1）列线位于第n列的左侧，并且第（n + 1）列列设置在第n列线的右侧。 还包括用于产生位模式的发生器，用于指示三个相邻列线中的列线故障。 像素选择电路被配置为基于位模式来提供来自三个相邻列线中的一个的像素输出信号。