-
公开(公告)号：US08760537B2
公开(公告)日：2014-06-24
申请号：US12876095
申请日：2010-09-03
CPC分类号： H04N5/2355 , G06T5/50 , G06T7/32 , G06T2207/10144 , G06T2207/10152 , G06T2207/20016 , G06T2207/20021 , G06T2207/20208 , H04N5/23216 , H04N5/23232 , H04N5/23245 , H04N5/23254 , H04N5/23258 , H04N5/2351 , H04N5/2352 , H04N5/2356 , H04N9/07
摘要： Some embodiments of the invention provide a mobile device that captures and produces images with high dynamic ranges. To capture and produce a high dynamic range image, the mobile device of some embodiments includes novel image capture and processing modules. In some embodiments, the mobile device produces a high dynamic range (HDR) image by (1) having its image capture module rapidly capture a succession of images at different image exposure durations, and (2) having its image processing module composite these images to produce the HDR image.
摘要翻译： 本发明的一些实施例提供了捕获并产生具有高动态范围的图像的移动设备。 为了捕获并产生高动态范围图像，一些实施例的移动设备包括新颖的图像捕获和处理模块。 在一些实施例中，移动设备通过以下方式产生高动态范围（HDR）图像：（1）使其图像捕获模块在不同的图像曝光持续时间内快速捕获一系列图像，以及（2）使其图像处理模块将这些图像复合到 产生HDR图像。
-
公开(公告)号：US08605167B2
公开(公告)日：2013-12-10
申请号：US12873973
申请日：2010-09-01
IPC分类号： H04N9/73
摘要： Various techniques are disclosed for processing statistics data in an image signal processor (ISP). In one embodiment, a statistics collection engine may be configured to acquire statistics relating to auto white-balance. The statistics collection engine may receive raw Bayer RGB data acquired by an image sensor and may be configured to perform one or more color space conversions to obtain pixel data in other color spaces. A set of pixel filters may be configured to accumulate sums of the pixel data conditionally based upon YC1C2 characteristics, as defined by a pixel condition per pixel filter. Depending on a selected color space, the pixel filters may generate color sums, which may be used to match a current illuminant against a set of reference illuminants with which the image sensor has been previously calibrated.
摘要翻译： 公开了用于处理图像信号处理器（ISP）中的统计数据的各种技术。 在一个实施例中，统计收集引擎可以被配置为获取与自动白平衡有关的统计。 统计收集引擎可以接收由图像传感器获取的原始拜耳RGB数据，并且可以被配置为执行一个或多个颜色空间转换以获得其他颜色空间中的像素数据。 一组像素滤波器可以被配置为基于每像素滤波器的像素条件定义的YC1C2特性有条件地累加像素数据的和。 根据所选择的颜色空间，像素滤波器可以生成颜色和，其可以用于将当前光源与图像传感器已经被预先校准的一组参考光源相匹配。
-
公开(公告)号：US20130321678A1
公开(公告)日：2013-12-05
申请号：US13485235
申请日：2012-05-31
CPC分类号： H04N9/64 , H04N5/142 , H04N5/23229 , H04N5/23254 , H04N5/365 , H04N5/367 , H04N9/045 , H04N9/735
摘要： Systems and methods for correcting intensity drop-offs due to geometric properties of lenses are provided. In one example, a method includes receiving an input pixel of the image data, the image data acquired using an image sensor. A color component of the input pixel is determined. A gain grid is determined by pointing to the gain grid in external memory. Each of the plurality of grid points is associated with a lens shading gain selected based upon the color of the input pixel. A nearest set of grid points that enclose the input pixel is identified. Further, a lens shading gain is determined by interpolating the lens shading gains associated with each of the set of grid points and is applied to the input pixel.
摘要翻译： 提供了由于透镜的几何特性来校正强度降低的系统和方法。 在一个示例中，一种方法包括接收图像数据的输入像素，使用图像传感器获取的图像数据。 确定输入像素的颜色分量。 通过指向外部存储器中的增益栅格来确定增益栅格。 多个网格点中的每一个都与基于输入像素的颜色选择的透镜阴影增益相关联。 识别包围输入像素的最近的一组网格点。 此外，通过内插与该组网格点中的每一个相关联的透镜遮蔽增益来确定透镜阴影增益，并将其应用于输入像素。
-
34.发明申请公开(公告)号：US20130321671A1
公开(公告)日：2013-12-05
申请号：US13485101
申请日：2012-05-31
申请人： Guy Cote , D. Amnon Silverstein , Suk Hwan Lim , Sheng Lin , Haitao Guo
发明人： Guy Cote , D. Amnon Silverstein , Suk Hwan Lim , Sheng Lin , Haitao Guo
IPC分类号： H04N5/217
CPC分类号： H04N5/365
摘要： The present disclosure generally relates to systems and methods for image data processing. In certain embodiments, an image processing pipeline may be configured to receive a frame of the image data having a plurality of pixels acquired using a digital image sensor. The image processing pipeline may then be configured to determine a first plurality of correction factors that may correct each pixel in the plurality of pixels for fixed pattern noise. The first plurality of correction factors may be determined based at least in part on fixed pattern noise statistics that correspond to the frame of the image data. After determining the first plurality of correction factors, the image processing pipeline may be configured to configured to apply the first plurality of correction factors to the plurality of pixels, thereby reducing the fixed pattern noise present in the plurality of pixels.
摘要翻译： 本公开通常涉及用于图像数据处理的系统和方法。 在某些实施例中，图像处理流水线可以被配置为接收具有使用数字图像传感器获取的多个像素的图像数据的帧。 然后，图像处理流水线可以被配置为确定可修正多个像素中的每个像素以用于固定模式噪声的第一多个校正因子。 可以至少部分地基于对应于图像数据的帧的固定模式噪声统计来确定第一多个校正因子。 在确定了第一多个校正因子之后，图像处理流水线可以被配置为将多个第一校正因子应用于多个像素，从而减少存在于多个像素中的固定模式噪声。
-
公开(公告)号：US08493482B2
公开(公告)日：2013-07-23
申请号：US12858922
申请日：2010-08-18
IPC分类号： H04N3/14 , H04N5/335 , H01L31/062
CPC分类号： H04N5/232 , H04N5/2258 , H04N5/23245
摘要： Various techniques are provided for processing image data acquired using a digital image sensor. In accordance with aspects of the present disclosure, one such technique may relate to the processing of image data in a system that supports multiple image sensors. In one embodiment, the image processing system may include control circuitry configured to determine whether a device is operating in a single sensor mode (one active sensor) or a dual sensor mode (two active sensors). When operating in the single sensor mode, data may be provided directly to a front-end pixel processing unit from the sensor interface of the active sensor. When operating in a dual sensor mode, the image frames from the first and second sensors are provided to the front-end pixel processing unit in an interleaved manner. For instance, in one embodiment, the image frames from the first and second sensors are written to a memory, and then read out to the front-end pixel processing unit in an interleaved manner.
摘要翻译： 提供了用于处理使用数字图像传感器获取的图像数据的各种技术。 根据本公开的方面，一种这样的技术可以涉及在支持多个图像传感器的系统中对图像数据的处理。 在一个实施例中，图像处理系统可以包括被配置为确定设备是以单个传感器模式（一个有源传感器）或双传感器模式（两个有源传感器）操作的控制电路。 当在单传感器模式下操作时，数据可以从有源传感器的传感器接口直接提供给前端像素处理单元。 当以双传感器模式操作时，来自第一和第二传感器的图像帧以交错的方式提供给前端像素处理单元。 例如，在一个实施例中，来自第一和第二传感器的图像帧被写入存储器，然后以交错的方式读出到前端像素处理单元。
-
36.发明授权Method and apparatus for applying accurate parameter estimation and efficient fade detection in weighted prediction for video compression 有权用于在视频压缩的加权预测中应用准确的参数估计和高效衰落检测的方法和装置公开(公告)号：US08270483B1
公开(公告)日：2012-09-18
申请号：US12126057
申请日：2008-05-23
IPC分类号： H04N7/26
CPC分类号： H04N19/142 , H04N19/105 , H04N19/14
摘要： A method to control weighted prediction for video compression. The method comprises (A) generating statistics based upon analysis of a plurality of video frames, (B) detecting a fade condition based upon the statistics, (C) generating one or more estimated weighted prediction parameters based upon the statistics when the fade condition is detected and (D) encoding the plurality of video frames. The encoding takes into account the estimated weighted prediction parameters when generated.
摘要翻译： 一种控制视频压缩加权预测的方法。 该方法包括：（A）基于多个视频帧的分析产生统计;（B）基于统计信息检测褪色条件;（C）基于当衰落条件为褪色条件时的统计信息生成一个或多个估计加权预测参数 检测和（D）编码多个视频帧。 编码在产生时考虑了估计的加权预测参数。
-
37.发明授权Methods and/or apparatus for implementing rate distortion optimization in video compression 有权用于在视频压缩中实现速率失真优化的方法和/或装置公开(公告)号：US08175150B1
公开(公告)日：2012-05-08
申请号：US11750644
申请日：2007-05-18
IPC分类号： H04N7/30
CPC分类号： H04N19/19 , H04N19/147
摘要： An apparatus comprising a first circuit, a second circuit and a third circuit. The first circuit may be configured to determine one or more signal characteristics in a portion of an input video signal. The second circuit may be configured to select a multiplier value from a plurality of multiplier values in response to the signal characteristics. The third circuit may be configured to generate an encoded bitstream in response to (i) the input video signal and (ii) the selected multiplier value.
摘要翻译： 一种包括第一电路，第二电路和第三电路的装置。 第一电路可以被配置为确定输入视频信号的一部分中的一个或多个信号特性。 第二电路可以被配置为响应于信号特性从多个乘数值中选择乘数值。 第三电路可以被配置为响应于（i）输入视频信号和（ii）所选择的乘数值来生成编码比特流。
-
38.发明授权Method and/or architecture for motion estimation using integrated information from camera ISP 有权使用摄像机ISP的综合信息进行运动估计的方法和/或架构公开(公告)号：US08135068B1
公开(公告)日：2012-03-13
申请号：US11769023
申请日：2007-06-27
申请人： José R. Alvarez , Guy Cote
发明人： José R. Alvarez , Guy Cote
CPC分类号： H04N19/59 , H04N19/117 , H04N19/124 , H04N19/132 , H04N19/14 , H04N19/146 , H04N19/17 , H04N19/176 , H04N19/61 , H04N19/85
摘要： A camera comprising a first circuit and a second circuit. The first circuit may be configured to perform image signal processing using encoding related information. The second circuit may be configured to encode image data using image signal processing related information. The first circuit may be further configured to pass the image signal processing related information to the second circuit. The second circuit may be further configured to pass the encoding related information to the first circuit. The second circuit may be further configured to modify one or more motion estimation processes based upon the information from the first circuit.
摘要翻译： 一种照相机，包括第一电路和第二电路。 第一电路可以被配置为使用编码相关信息来执行图像信号处理。 第二电路可以被配置为使用图像信号处理相关信息对图像数据进行编码。 第一电路可以被进一步配置为将图像信号处理相关信息传递给第二电路。 第二电路可以被进一步配置为将编码相关信息传递给第一电路。 第二电路还可以被配置为基于来自第一电路的信息来修改一个或多个运动估计处理。
-
公开(公告)号：US20120002082A1
公开(公告)日：2012-01-05
申请号：US12876095
申请日：2010-09-03
CPC分类号： H04N5/2355 , G06T5/50 , G06T7/32 , G06T2207/10144 , G06T2207/10152 , G06T2207/20016 , G06T2207/20021 , G06T2207/20208 , H04N5/23216 , H04N5/23232 , H04N5/23245 , H04N5/23254 , H04N5/23258 , H04N5/2351 , H04N5/2352 , H04N5/2356 , H04N9/07
摘要： Some embodiments of the invention provide a mobile device that captures and produces images with high dynamic ranges. To capture and produce a high dynamic range image, the mobile device of some embodiments includes novel image capture and processing modules. In some embodiments, the mobile device produces a high dynamic range (HDR) image by (1) having its image capture module rapidly capture a succession of images at different image exposure durations, and (2) having its image processing module composite these images to produce the HDR image.
摘要翻译： 本发明的一些实施例提供了捕获并产生具有高动态范围的图像的移动设备。 为了捕获并产生高动态范围图像，一些实施例的移动设备包括新颖的图像捕获和处理模块。 在一些实施例中，移动设备通过以下方式产生高动态范围（HDR）图像：（1）使其图像捕获模块在不同的图像曝光持续时间内快速捕获一系列图像，以及（2）使其图像处理模块将这些图像复合到 产生HDR图像。
-
40.发明申请SYSTEM AND METHOD FOR DETECTING AND CORRECTING DEFECTIVE PIXELS IN AN IMAGE SENSOR 有权用于检测和校正图像传感器中的有缺陷像素的系统和方法公开(公告)号：US20110090371A1
公开(公告)日：2011-04-21
申请号：US12582400
申请日：2009-10-20
申请人： Guy Cote , Jeffrey E. Frederiksen
发明人： Guy Cote , Jeffrey E. Frederiksen
CPC分类号： H04N5/3572 , H04N5/2176 , H04N5/23229 , H04N5/359 , H04N5/3675 , H04N9/045
摘要： Various techniques are provided for the detection and correction of defective pixels in an image sensor. In accordance with one embodiment, a static defect table storing the locations of known static defects is provided, and the location of a current pixel is compared to the static defect table. If the location of the current pixel is found in the static defect table, the current pixel is identified as a static defect and is corrected using the value of the previous pixel of the same color. If the current pixel is not identified as a static defect, a dynamic defect detection process includes comparing pixel-to-pixel gradients between the current pixel a set of neighboring pixels against a dynamic defect threshold. If a dynamic defect is detected, a replacement value for correcting the dynamic defect may be determined by interpolating the value of two neighboring pixels on opposite sides of the current pixel in a direction exhibiting the smallest gradient.
摘要翻译： 提供了用于图像传感器中的缺陷像素的检测和校正的各种技术。 根据一个实施例，提供存储已知静态缺陷的位置的静态缺陷表，并将当前像素的位置与静态缺陷表进行比较。 如果在静态缺陷表中找到当前像素的位置，则将当前像素识别为静态缺陷，并使用相同颜色的先前像素的值进行校正。 如果当前像素未被识别为静态缺陷，则动态缺陷检测处理包括将当前像素与一组相邻像素之间的像素与像素梯度与动态缺陷阈值进行比较。 如果检测到动态缺陷，则可以通过在呈现最小梯度的方向上内插当前像素的相对侧上的两个相邻像素的值来确定用于校正动态缺陷的替换值。
-
-
-
-
-
-
-
-
-
搜索结果
119 条记录 (耗时 0.076 秒)
