公开(公告)号：US20120134598A1

公开(公告)日：2012-05-31

申请号：US13297797

申请日：2011-11-16

申请人： Ilia Ovsiannikov ,  Dong Ki Min ,  Young Gu Jin

发明人： Ilia Ovsiannikov ,  Dong Ki Min ,  Young Gu Jin

IPC分类号： G06K9/64

CPC分类号： G01S7/4876 ,  G01S7/4816 ,  G01S17/89

摘要： The method includes calculating similarities between a plurality of pixel signals of a depth pixel and a plurality of pixel signals of neighbor depth pixels neighboring the depth pixel, calculating a weight of each of the neighbor depth pixels using the similarities, calculating a weight of the depth pixel using the weights of the respective neighbor depth pixels, and determining a denoised pixel signal using the weights of the respective neighbor depth pixels and the weight of the depth pixel.

摘要翻译： 该方法包括计算深度像素的多个像素信号和与深度像素相邻的相邻深度像素的多个像素信号之间的相似度，使用相似度计算每个相邻深度像素的权重，计算深度的权重 使用各个相邻深度像素的权重，并且使用各个相邻深度像素的权重和深度像素的权重来确定去噪像素信号。

公开(公告)号：US20110205400A1

公开(公告)日：2011-08-25

申请号：US13100813

申请日：2011-05-04

申请人： Ilia Ovsiannikov

发明人： Ilia Ovsiannikov

IPC分类号： H04N9/68 ,  G06K9/36

CPC分类号： H04N1/4072

摘要： A method and apparatus for applying tonal correction to images to obtain a more pleasing photographic image by redistributing low-key, mid-tone and high-key tones. Luminance is calculated by using formulas appropriate for the color space or directly inputted. Two color-difference components are computed for the original image. Luminance is subjected to a tonal correction function to obtain a tonal corrected luminance. Luminance gain is calculated and applied to the color-difference components to obtain two tonal corrected color-difference components. The tonal corrected luminance and two tonal corrected color-difference components can be directly output or used to calculate three color component signals for the desired color space.

摘要翻译： 一种用于对图像应用色调校正以通过重新分配低调，中音和高音音调来获得更令人愉快的摄影图像的方法和装置。 通过使用适合颜色空间或直接输入的公式计算亮度。 为原始图像计算两个色差分量。 亮度经受色调校正功能以获得色调校正亮度。 计算亮度增益并将其应用于色差分量，以获得两个色调校正的色差分量。 色调校正亮度和两个色调校正色差分量可直接输出或用于计算所需颜色空间的三色分量信号。

公开(公告)号：US20100328491A1

公开(公告)日：2010-12-30

申请号：US12874811

申请日：2010-09-02

申请人： Ilia Ovsiannikov

发明人： Ilia Ovsiannikov

IPC分类号： H04N5/235

CPC分类号： G03B7/08

摘要： A method, apparatus, and system for dynamic range estimation of imaged scenes for automatic exposure control. For a given exposure time setting, certain areas of a scene may be brighter than what a camera can capture. In cameras, including those experiencing substantial lens vignetting, a gain stage may be used to extend dynamic range and extract auto-exposure data from the extended dynamic range. Alternatively, dynamic range can be extended using pre-capture image information taken under reduced exposure conditions.

摘要翻译： 用于自动曝光控制的成像场景的动态范围估计的方法，装置和系统。 对于给定的曝光时间设置，场景的某些区域可能比照相机可以捕获更亮。 在相机中，包括那些经历大量透镜渐晕的相机，增益级可用于扩展动态范围，并从扩展动态范围中提取自动曝光数据。 或者，可以使用在减少的曝光条件下拍摄的预拍摄图像信息来扩展动态范围。

公开(公告)号：US07813545B2

公开(公告)日：2010-10-12

申请号：US11513570

申请日：2006-08-31

申请人： Ilia Ovsiannikov

发明人： Ilia Ovsiannikov

IPC分类号： G06K9/00 ,  G06K9/40 ,  H04N5/232

CPC分类号： G03B7/08

摘要： An image window is subdivided into a plurality of sub-windows arranged in a rectangular grid pattern. The average brightness of the window and each sub-window is determined. A sub-window is tagged as dark if its average brightness is a predetermined percentage of the window average brightness. If the sub-window in the center of the grid pattern is considered to be dark, a segmentation is performed to detect a main backlit subject. The comparison of sub-window brightness is continued from the center sub-window in outward sequential, side adjacent rows and columns of sub-windows. Each sub-window that meets the above-described criterion for being dark is tagged as dark. The image is considered to have a main backlit subject if, in one embodiment, the subject is comprised of a predetermined quantity of continuous, dark sub-windows.

摘要翻译： 图像窗口被细分为以矩形网格图案排列的多个子窗口。 确定窗口和每个子窗口的平均亮度。 如果平均亮度是窗口平均亮度的预定百分比，则子窗口被标记为暗。 如果网格图案中心的子窗口被认为是暗的，则执行分割以检测主背光对象。 子窗口亮度的比较从中央子窗口继续向外顺序，侧面相邻的行和子窗口列。 满足上述黑暗标准的每个子窗口被标记为黑色。 如果在一个实施例中，被摄体由预定数量的连续的暗子窗构成，则该图像被认为具有主背光主体。

公开(公告)号：US07737394B2

公开(公告)日：2010-06-15

申请号：US11513582

申请日：2006-08-31

申请人： Ilia Ovsiannikov ,  Xuemei Zhang ,  Dmitri Jerdev

发明人： Ilia Ovsiannikov ,  Xuemei Zhang ,  Dmitri Jerdev

IPC分类号： G03B13/02

CPC分类号： H04N5/33 ,  G03B13/02 ,  H01L27/14621 ,  H01L27/14623 ,  H01L27/14625 ,  H01L27/14649 ,  H04N5/374

摘要： A solid state imaging device includes an array of active pixels and an infrared cut filter formed over the sensor. Optionally, a slot in the infrared cut filter allows infrared illumination to reach the sensor to be detected by pixels covered by a visually opaque filter and surrounded by pixels of special types that limit charge leakage and enable high dynamic range sensing of infrared illumination. A ratio of average infrared signal to average brightness indicates an amount of infrared illumination reaching the imaging device.

摘要翻译： 固态成像装置包括在传感器上形成的有源像素阵列和红外截止滤波器。 可选地，红外线截止滤光器中的狭槽允许红外照明到达传感器以由视觉不透明滤光片覆盖的像素检测，并被限制电荷泄漏的特殊类型的像素包围，并实现红外照明的高动态范围感测。 平均红外信号与平均亮度的比率表示到达成像装置的红外线照射量。

公开(公告)号：US20090237530A1

公开(公告)日：2009-09-24

申请号：US12052305

申请日：2008-03-20

申请人： Ilia Ovsiannikov

发明人： Ilia Ovsiannikov

IPC分类号： H04N9/68 ,  H04N3/14

CPC分类号： H04N9/045 ,  H04N9/646 ,  H04N9/77 ,  H04N2209/046

摘要： Methods and apparatuses for sharpening imaging pixel signals. Embodiments provide methods of sharpening that preserves the pixel's saturation and apparatuses therefor. In essence, rather than changing only the pixels' luminance, the effective exposure of the pixel is changed.

摘要翻译： 用于锐化成像像素信号的方法和装置。 实施例提供了锐化的方法，其保持像素的饱和度及其装置。 实质上，不是仅改变像素的亮度，而是改变像素的有效曝光。

公开(公告)号：US20080298708A1

公开(公告)日：2008-12-04

申请号：US11806491

申请日：2007-05-31

申请人： Ilia Ovsiannikov ,  Dmitri Jerdev

发明人： Ilia Ovsiannikov ,  Dmitri Jerdev

IPC分类号： G06K9/40

CPC分类号： H04N9/045 ,  H04N2209/046

摘要： Methods and apparatuses for noise reduction of imager pixels signals. A weighted combination based on the presence of edges of two calculated demosaiced signals is used to produce a noise reduced signal. The noise reduced signal may be sharpened based on a calculated luminance of the two demosaiced signals.

摘要翻译： 降低成像器像素信号的方法和装置。 使用基于两个计算的去马赛克信号的边缘的加权组合来产生噪声降低的信号。 基于所计算的两个去马赛克信号的亮度，降噪信号可以被削弱。

公开(公告)号：US20080259180A1

公开(公告)日：2008-10-23

申请号：US11785706

申请日：2007-04-19

申请人： Ilia Ovsiannikov

发明人： Ilia Ovsiannikov

IPC分类号： H04N9/73

CPC分类号： H04N9/045 ,  H04N2209/045 ,  H04N2209/046

摘要： Methods, systems and apparatuses for determining and compensating for green imbalance in imagers. An estimated local green balance correction term is limited, e.g., between an upper and lower limit. The upper and lower limits are determined from a set of parameters. The parameters are determined during a calibration procedure. The parameters may be stored for a subset of possible pixel locations and parameters for each pixel not at a location corresponding to stored data may be determined by interpolation

摘要翻译： 用于确定和补偿成像器中绿色不平衡的方法，系统和装置。 估计的本地绿色平衡校正项是有限的，例如在上限和下限之间。 上限和下限由一组参数确定。 在校准过程中确定参数。 对于可能的像素位置的子集可以存储参数，而不是在与存储的数据相对应的位置处的每个像素的参数可以通过插值

公开(公告)号：US20080252759A1

公开(公告)日：2008-10-16

申请号：US11783865

申请日：2007-04-12

申请人： Dmitri Jerdev ,  Ilia Ovsiannikov

发明人： Dmitri Jerdev ,  Ilia Ovsiannikov

IPC分类号： H04N5/335

CPC分类号： H04N9/045 ,  H04N2209/045 ,  H04N2209/046

摘要： Method, apparatus and system for determining a value for green-green imbalance and applying the value to green pixels to correct the imbalance are described. Average pixel values of green pixels within a kernel are calculated and an imbalance value is determined based on the averages. The imbalance value is added to or subtracted from all green pixel response values in the kernel to correct the imbalance.

摘要翻译： 描述了用于确定绿 - 绿不平衡值并将该值应用于绿色像素以校正不平衡的方法，装置和系统。 计算内核中的绿色像素的平均像素值，并根据平均值确定不平衡值。 不平衡值被添加到或从内核中的所有绿色像素响应值中减去以校正不平衡。

公开(公告)号：US20080055455A1

公开(公告)日：2008-03-06

申请号：US11513583

申请日：2006-08-31

申请人： Ilia Ovsiannikov

发明人： Ilia Ovsiannikov

IPC分类号： G02B13/16

CPC分类号： G01J3/02 ,  G01J3/0262 ,  G01J3/51 ,  G01J3/513 ,  G02B5/281 ,  H04N9/045

摘要： The various embodiments described herein provide for the correction of spectral imbalance as might be caused where first pixels corresponding to a first spectral response have two or more different patterns of neighboring pixels contributing to cross-talk interference with the response of those first pixels. The differing patterns of neighboring pixels generally produce differing levels of contribution to the response of the first pixels even when subjected to the same illumination. By determining an average response of a first set of the first pixels having a first pattern of neighboring pixels and an average response of a second set of the first pixels having a second pattern of neighboring pixels, corrections for one or both of the sets of the first pixels can be determined to facilitate a mitigation of the spectral imbalance.

摘要翻译： 这里描述的各种实施例提供了可能导致的频谱不平衡的校正，其中对应于第一光谱响应的第一像素具有两个或更多个相邻像素的不同图案，这有助于与第一像素的响应的串扰干扰。 相邻像素的不同图案通常对于即使经受相同照明的第一像素的响应也产生不同程度的贡献。 通过确定具有相邻像素的第一图案的第一组像素的第一组的平均响应以及具有相邻像素的第二图案的第一像素的第二组的平均响应，对于 可以确定第一像素以便于减轻光谱不平衡。