SYSTEMS AND METHODS FOR LENS SHADING CORRECTION
    21.
    发明申请
    SYSTEMS AND METHODS FOR LENS SHADING CORRECTION 有权
    镜头校正校正系统及方法

    公开(公告)号:US20130321678A1

    公开(公告)日:2013-12-05

    申请号:US13485235

    申请日:2012-05-31

    IPC分类号: H04N9/64 G06K9/00

    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。

    SYSTEMS AND METHOD FOR REDUCING FIXED PATTERN NOISE IN IMAGE DATA
    22.
    发明申请
    SYSTEMS AND METHOD FOR REDUCING FIXED PATTERN NOISE IN IMAGE DATA 审中-公开
    用于减少图像数据中固定图案噪声的系统和方法

    公开(公告)号:US20130321671A1

    公开(公告)日:2013-12-05

    申请号:US13485101

    申请日:2012-05-31

    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。

    Dual image sensor image processing system and method
    23.
    发明授权
    Dual image sensor image processing system and method 有权
    双图像传感器图像处理系统及方法

    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

    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。

    Method and apparatus for applying accurate parameter estimation and efficient fade detection in weighted prediction for video compression
    24.
    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

    申请人: Rui Zhang Guy Cote

    发明人: Rui Zhang Guy Cote

    IPC分类号: H04N7/26

    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。

    Method for video deinterlacing and format conversion
    25.
    发明授权
    Method for video deinterlacing and format conversion 有权
    视频去隔行和格式转换的方法

    公开(公告)号:US08223264B2

    公开(公告)日:2012-07-17

    申请号:US12983999

    申请日:2011-01-04

    摘要: A method for deinterlacing a picture is disclosed. The method generally includes the steps of (A) generating a plurality of primary scores by searching along a plurality of primary angles for an edge in the picture proximate a location interlaced with a field of the picture, (B) generating a plurality of neighbor scores by searching for the edge along a plurality of neighbor angles proximate a particular angle of the primary angles corresponding to a particular score of the primary scores having a best value and (C) identifying a best score from a group of scores consisting of the particular score and the neighbor scores to generate an interpolated sample at the location.

    摘要翻译: 公开了一种用于去隔行扫描图像的方法。 该方法通常包括以下步骤:(A)通过沿图像中的边缘邻近的图像的边缘沿多个主角度搜索生成多个主分数,(B)生成多个相邻分数 通过搜索沿着与具有最佳值的主分数的特定分数相对应的主角度的特定角度的多个相邻角度的边缘,以及(C)从由特定分数组成的分数组中识别最佳分数 和邻居得分,以在该位置生成内插样本。

    Methods and/or apparatus for implementing rate distortion optimization in video compression
    26.
    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

    申请人: Rui Zhang Guy Cote

    发明人: Rui Zhang Guy Cote

    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。

    Method and/or architecture for motion estimation using integrated information from camera ISP
    27.
    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

    IPC分类号: H04N7/12 G06K9/36

    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。

    Method and apparatus for MPEG-2 to VC-1 video transcoding
    29.
    发明授权
    Method and apparatus for MPEG-2 to VC-1 video transcoding 有权
    MPEG-2到VC-1视频转码的方法和装置

    公开(公告)号:US08045618B2

    公开(公告)日:2011-10-25

    申请号:US11198694

    申请日:2005-08-05

    IPC分类号: H04B1/66

    摘要: A method for transcoding from an MPEG-2 format to a VC-1 format is disclosed. The method generally comprises the steps of (A) decoding an input video stream in the MPEG-2 format to generate a picture; (B) determining a mode indicator for the picture; and (C) coding the picture into an output video stream in the VC-1 format using one of (i) a VC-1 field mode coding and (ii) a VC-1 frame mode coding as determined from the mode indicator.

    摘要翻译: 公开了一种从MPEG-2格式转换为VC-1格式的方法。 该方法通常包括以下步骤:(A)以MPEG-2格式对输入视频流进行解码以产生图像; (B)确定图像的模式指示符; 以及(C)使用(i)从模式指示符确定的VC-1场模式编码和(ii)VC-1帧模式编码中的一个将图像编码为VC-1格式的输出视频流。

    METHOD AND APPARATUS FOR VC-1 TO MPEG-2 VIDEO TRANSCODING
    30.
    发明申请
    METHOD AND APPARATUS FOR VC-1 TO MPEG-2 VIDEO TRANSCODING 审中-公开
    用于VC-1到MPEG-2视频传输的方法和装置

    公开(公告)号:US20110122940A1

    公开(公告)日:2011-05-26

    申请号:US13018585

    申请日:2011-02-01

    IPC分类号: H04N7/26

    摘要: A method for transcoding from a VC-1 format to an MPEG-2 format is disclosed. The method generally comprises the steps of (A) decoding an input video stream in the VC-1 format to generate a picture; (B) determining a first mode indicator for the picture; and (C) coding the picture into an output video stream in the MPEG-2 format using one of (i) an MPEG-2 field mode coding and (ii) an MPEG-2 frame mode coding as determined from the first mode indicator.

    摘要翻译: 公开了一种从VC-1格式转换为MPEG-2格式的方法。 该方法通常包括以下步骤:(A)以VC-1格式解码输入视频流以产生图像; (B)确定图像的第一模式指示符; 以及(C)使用(i)从第一模式指示符确定的MPEG-2场模式编码和(ii)MPEG-2帧模式编码之一,将图像编码为MPEG-2格式的输出视频流。