Systems and methods for raw image processing
    51.
    发明授权
    Systems and methods for raw image processing 有权
    原始图像处理的系统和方法

    公开(公告)号:US08872946B2

    公开(公告)日:2014-10-28

    申请号:US13485056

    申请日:2012-05-31

    IPC分类号: H04N5/217

    摘要: Systems and methods for processing raw image data are provided. One example of such a system may include memory to store image data in raw format from a digital imaging device and an image signal processor to process the image data. The image signal processor may include data conversion logic and a raw image processing pipeline. The data conversion logic may convert the image data into a signed format to preserve negative noise from the digital imaging device. The raw image processing pipeline may at least partly process the image data in the signed format. The raw image processing pipeline may also include, among other things, black level compensation logic, fixed pattern noise reduction logic, temporal filtering logic, defective pixel correction logic, spatial noise filtering logic, lens shading correction logic, and highlight recovery logic.

    摘要翻译: 提供了处理原始图像数据的系统和方法。 这种系统的一个示例可以包括存储器,以存储来自数字成像设备的原始格式的图像数据和图像信号处理器来处理图像数据。 图像信号处理器可以包括数据转换逻辑和原始图像处理流水线。 数据转换逻辑可以将图像数据转换为带符号格式以保护来自数字成像装置的负噪声。 原始图像处理流水线可以至少部分地以签名格式处理图像数据。 原始图像处理流水线还可以包括黑电平补偿逻辑,固定图案噪声降低逻辑,时间滤波逻辑,缺陷像素校正逻辑,空间噪声滤波逻辑,透镜阴影校正逻辑和高亮恢复逻辑。

    Method and apparatus for MPEG-2 to VC-1 video transcoding
    52.
    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:US08654853B2

    公开(公告)日:2014-02-18

    申请号:US13222118

    申请日:2011-08-31

    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。

    SYSTEMS AND METHODS FOR COLLECTING FIXED PATTERN NOISE STATISTICS OF IMAGE DATA
    54.
    发明申请
    SYSTEMS AND METHODS FOR COLLECTING FIXED PATTERN NOISE STATISTICS OF IMAGE DATA 有权
    用于收集图像数据的固定图形噪声统计的系统和方法

    公开(公告)号:US20130321672A1

    公开(公告)日:2013-12-05

    申请号:US13485124

    申请日:2012-05-31

    IPC分类号: H04N5/228 H04N5/00

    CPC分类号: G06T5/005 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 collect statistics associated with fixed pattern noise of image data by receiving a first frame of the image data comprising a plurality of pixels. The image processing pipeline may then determine a sum of a first plurality of pixel values that correspond to at least a first portion of the plurality of pixels such that each pixel in at least the first portion of the plurality of pixels is disposed along a first axis within the frame of the image data. After determining the sum of the first plurality of pixel values, the image processing pipeline may store the sum of the first plurality of pixel values in a memory such that the sum of the first plurality of pixel values represent the statistics.

    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通过接收包括多个像素的图像数据的第一帧来收集与图像数据的固定模式噪声相关联的统计信息。 然后,图像处理流水线可以确定对应于多个像素的至少第一部分的第一多个像素值的和,使得至少第一部分中的每个像素沿着第一轴设置 在图像数据的帧内。 在确定第一多个像素值的和之后,图像处理流水线可以将第一多个像素值的和存储在存储器中,使得第一多个像素值的和代表统计。

    METHOD AND APPARATUS FOR QP MODULATION BASED ON PERCEPTUAL MODELS FOR PICTURE ENCODING
    55.
    发明申请
    METHOD AND APPARATUS FOR QP MODULATION BASED ON PERCEPTUAL MODELS FOR PICTURE ENCODING 有权
    基于图像编码的概念模型的QP调制方法与装置

    公开(公告)号:US20130121403A1

    公开(公告)日:2013-05-16

    申请号:US13419294

    申请日:2012-03-13

    申请人: Guy Cote

    发明人: Guy Cote

    IPC分类号: H04N7/26

    摘要: A method for encoding a picture is disclosed. The method generally includes the steps of (A) generating at least one respective macroblock statistic from each of a plurality of macroblocks in the picture, (B) generating at least one global statistic from the picture and (C) generating a respective macroblock quantization parameter for each of the macroblocks based on both (i) the at least one respective macroblock statistic and (ii) said at least one global statistic.

    摘要翻译: 公开了一种图像编码方法。 该方法通常包括以下步骤:(A)从图像中的多个宏块中的每一个生成至少一个相应的宏块统计量,(B)从图像生成至少一个全局统计量,(C)生成相应的宏块量化参数 基于(i)至少一个相应的宏块统计量和(ii)所述至少一个全局统计量,对于每个宏块。

    System and method for processing image data using an image processing pipeline of an image signal processor
    56.
    发明授权
    System and method for processing image data using an image processing pipeline of an image signal processor 有权
    使用图像信号处理器的图像处理流水线处理图像数据的系统和方法

    公开(公告)号:US08358319B2

    公开(公告)日:2013-01-22

    申请号:US12789815

    申请日:2010-05-28

    IPC分类号: G09G5/00

    摘要: Various techniques are provided herein for processing raw image data acquired using a digital image sensor in an image processing pipeline of an image signal processing system. In one embodiment, the image processing pipeline may first process the raw image data (e.g., Bayer image data) for the detection and correction of defective pixels. Next, the image processing pipeline may process the raw image data to reduce noise. Thereafter, the image processing pipeline may correct lens shading distortion in the raw image data and, subsequently, apply a demosaicing algorithm to convert the raw image data into full color image data (e.g., RGB image data). The color image data may be further processed by the image processing pipeline to correct color and gamma properties prior to being converted into a luma and chroma color space (e.g., YCbCr color space).

    摘要翻译: 本文提供了用于处理在图像信号处理系统的图像处理流水线中使用数字图像传感器获取的原始图像数据的各种技术。 在一个实施例中,图像处理流水线可以首先处理原始图像数据(例如,拜耳图像数据)以用于缺陷像素的检测和校正。 接下来,图像处理流水线可以处理原始图像数据以降低噪声。 此后,图像处理流水线可以校正原始图像数据中的透镜遮蔽失真,并且随后应用去马赛克算法将原始图像数据转换为全色图像数据(例如,RGB图像数据)。 彩色图像数据可以由图像处理流水线进一步处理,以在被转换为亮度和色度色彩空间(例如,YCbCr颜色空间)之前校正颜色和伽马性质。

    METHOD AND APPARATUS FOR H.264 TO MPEG-2 VIDEO TRANSCODING
    57.
    发明申请
    METHOD AND APPARATUS FOR H.264 TO MPEG-2 VIDEO TRANSCODING 有权
    H.264到MPEG-2视频传输的方法和装置

    公开(公告)号:US20120147952A1

    公开(公告)日:2012-06-14

    申请号:US13400208

    申请日:2012-02-20

    IPC分类号: H04N7/26

    摘要: A method for transcoding from an H.264 format to an MPEG-2 format is disclosed. The method generally comprises the steps of (A) decoding an input video stream in the H.264 format to generate a picture having a plurality of macroblock pairs that used an H.264 macroblock adaptive field/frame coding; (B) determining a mode indicator for each of the macroblock pairs; and (C) coding the macroblock pairs 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 mode indicators.

    摘要翻译: 公开了一种从H.264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H.264格式解码输入视频流,以产生具有使用H.264宏块自适应字段/帧编码的多个宏块对的图像; (B)确定每个宏块对的模式指示符; 以及(C)使用MPEG-2场模式编码和(ii)从模式指示符确定的MPEG-2帧模式编码之一,将宏块对编码为MPEG-2格式的输出视频流。

    Method and apparatus for MPEG-2 to H.264 video transcoding
    58.
    发明授权
    Method and apparatus for MPEG-2 to H.264 video transcoding 有权
    用于MPEG-2至H.264视频转码的方法和装置

    公开(公告)号:US08155194B2

    公开(公告)日:2012-04-10

    申请号:US11198456

    申请日:2005-08-05

    IPC分类号: H04B1/66

    摘要: A method for transcoding from an MPEG-2 format to an H.264 format is disclosed. The method generally comprises the steps of (A) decoding an input video stream in the MPEG-2 format to generate a plurality of macroblocks; (B) determining a plurality of indicators from a pair of the macroblocks, the pair of the macroblocks being vertically adjoining; and (C) coding the pair of the macroblocks into an output video stream in the H.264 format using one of (i) a field mode coding and (ii) a frame mode coding as determined from the indicators.

    摘要翻译: 公开了一种从MPEG-2格式转码为H.264格式的方法。 该方法通常包括以下步骤:(A)以MPEG-2格式解码输入视频流以产生多个宏块; (B)从一对宏块中确定多个指示符,所述一对宏块垂直相邻; 以及(C)使用(i)场模式编码和(ii)从指标确定的帧模式编码中的一个,将该对宏块编码为H.264格式的输出视频流。

    Performance adaptive video encoding with concurrent decoding
    59.
    发明授权
    Performance adaptive video encoding with concurrent decoding 有权
    性能自适应视频编码与并发解码

    公开(公告)号:US08031766B2

    公开(公告)日:2011-10-04

    申请号:US11195053

    申请日:2005-08-02

    申请人: Guy Cote

    发明人: Guy Cote

    IPC分类号: H04N7/12 H04N11/02

    摘要: An encoder circuit, a task scheduler circuit and a decoder circuit. The encoder circuit may be configured to (i) generate one or more first status signals in response to one or more report signals and (ii) perform video encoding tasks based on available central processing unit (CPU) cycles and memory bandwidth. The task scheduler circuit may be configured to (i) generate a control signal and the one or more report signals in response to the one or more first status signals. The decoder circuit may be configured to (i) generate one or more second status signals and (ii) perform concurrent decoding while the encoder circuit performs adaptive video encoding tasks in response to the control signal.

    摘要翻译: 编码器电路,任务调度器电路和解码器电路。 编码器电路可以被配置为:(i)响应于一个或多个报告信号产生一个或多个第一状态信号,以及(ii)基于可用的中央处理单元(CPU)周期和存储器带宽执行视频编码任务。 任务调度器电路可以被配置为(i)响应于一个或多个第一状态信号而产生控制信号和一个或多个报告信号。 解码器电路可以被配置为(i)产生一个或多个第二状态信号,并且(ii)在编码器电路响应于控制信号执行自适应视频编码任务时执行并行解码。