METHOD AND APPARATUS FOR QP MODULATION BASED ON PERCEPTUAL MODELS FOR PICTURE ENCODING
    71.
    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
    72.
    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。

    Performance adaptive video encoding with concurrent decoding
    73.
    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。

    Method and apparatus for image decoder post-processing using image pre-processing and image encoding information
    74.
    发明授权
    Method and apparatus for image decoder post-processing using image pre-processing and image encoding information 有权
    用于使用图像预处理和图像编码信息的图像解码器后处理的方法和装置

    公开(公告)号:US07684626B1

    公开(公告)日:2010-03-23

    申请号:US11292199

    申请日:2005-12-01

    摘要: A method for image decoding is disclosed. The method generally includes the steps of (A) receiving from a medium (1) an encoded signal and (2) transform data comprising at least one of (i) encoding statistics embedded in the encoded signal, (ii) encoding information and (iii) pre-processing information, wherein (a) the encoding statistics are created by an encoder in encoding an intermediate input signal to create the encoded signal, (b) the encoding information is producible by the encoder in the encoding and (c) the pre-processing information is producible by a pre-processor in converting an image input signal into the intermediate input signal, (B) generating an intermediate output signal by decoding the encoded signal and (C) generating an image output signal by processing the intermediate output signal in response to the transform data.

    摘要翻译: 公开了一种用于图像解码的方法。 该方法通常包括以下步骤:(A)从介质(1)接收编码信号;(2)转换数据,其包括以下至少一个:(i)编码嵌入在编码信号中的统计信息,(ii)编码信息和(iii 其中(a)由编码器在对中间输入信号进行编码以产生编码信号时产生编码统计量,(b)编码信息由编码器在编码中产生,(c)预编码信息 处理信息可由预处理器将图像输入信号转换成中间输入信号,(B)通过解码编码信号产生中间输出信号,(C)通过处理中间输出信号产生图像输出信号 响应于变换数据。

    Method and/or apparatus for reducing the complexity of H.264 B-frame encoding using selective reconstruction
    75.
    发明申请
    Method and/or apparatus for reducing the complexity of H.264 B-frame encoding using selective reconstruction 有权
    用于使用选择性重建降低H.264 B帧编码的复杂度的方法和/或装置

    公开(公告)号:US20070263724A1

    公开(公告)日:2007-11-15

    申请号:US11879944

    申请日:2007-07-19

    IPC分类号: H04N11/04

    摘要: A method for implementing B-frame prediction in video compression comprising the steps of (A) setting a prediction flag (i) “off” if B-frames are used for block prediction and (ii) “on” if B-frames are not used for block prediction, (B) if the prediction flag is off, generating an output video signal in response to an input video signal by performing an inverse quantization step and an inverse transform step in accordance with a predefined coding specification and (C) if the prediction flag is on, bypassing the inverse quantization step and the inverse transform step.

    摘要翻译: 一种在视频压缩中实现B帧预测的方法,包括以下步骤:(A)如果B帧用于块预测,则设置预测标志(i)“关闭”,以及(ii)如果B帧不是“ (B)如果预测标志关闭,则通过根据预定义的编码规范执行逆量化步骤和逆变换步骤,响应于输入视频信号产生输出视频信号,(C)如果 该预测标志位于旁路逆量化步骤和逆变换步骤。

    Rate control method for video transcoding
    76.
    发明授权
    Rate control method for video transcoding 有权
    视频转码速率控制方法

    公开(公告)号:US07170938B1

    公开(公告)日:2007-01-30

    申请号:US09934975

    申请日:2001-08-21

    IPC分类号: H04N7/12

    摘要: The present invention discloses a system and method for rate control of MPEG video streams to achieve a target bit rate in a transcoder at the best visual quality possible. The invention monitors video buffer fullness for selecting the amount of rate reduction necessary to achieve a target bit rate. The invention also utilizes a method for selective requantization of DCT coefficients to assure visual quality.

    摘要翻译: 本发明公开了一种用于MPEG视频流的速率控制的系统和方法,以在可能的最佳视觉质量下实现代码转换器中的目标比特率。 本发明监视视频缓冲器充满度以选择实现目标比特率所需的速率降低量。 本发明还利用DCT系数的选择性重新排序以确保视觉质量的方法。

    Image signal processing involving geometric distortion correction
    77.
    发明授权
    Image signal processing involving geometric distortion correction 有权
    涉及几何失真校正的图像信号处理

    公开(公告)号:US08917336B2

    公开(公告)日:2014-12-23

    申请号:US13484842

    申请日:2012-05-31

    IPC分类号: H04N5/217

    CPC分类号: H04N9/64 G06T5/006 H04N9/045

    摘要: Systems and methods for correcting geometric distortion are provided. In one example, an electronic device may include an imaging device, which may obtain image data of a first resolution, and geometric distortion and scaling logic. The imaging device may include a sensor and a lens that causes some geometric distortion in the image data. The geometric distortion correction and scaling logic may scale and correct for geometric distortion in the image data by determining first pixel coordinates in uncorrected or partially corrected image data that, when resampled, would produce corrected output image data at second pixel coordinates. The geometric distortion correction and scaling logic may resample pixels around the image data at the first pixel coordinates to obtain the corrected output image data at the second pixel coordinates. The corrected output image data may be of a second resolution.

    摘要翻译: 提供了校正几何失真的系统和方法。 在一个示例中,电子设备可以包括可以获得第一分辨率的图像数据和几何失真和缩放逻辑的成像设备。 成像装置可以包括导致​​图像数据中的几何失真的传感器和透镜。 几何失真校正和缩放逻辑可以通过确定未校正或部分校正的图像数据中的第一像素坐标来缩放和校正图像数据中的几何失真,当被重新采样时,将在第二像素坐标处产生校正的输出图像数据。 几何失真校正和缩放逻辑可以在第一像素坐标处对图像数据周围的像素进行重新采样,以获得第二像素坐标处的经校正的输出图像数据。 经校正的输出图像数据可以是第二分辨率。

    Systems and methods for collecting fixed pattern noise statistics of image data
    78.
    发明授权
    Systems and methods for collecting fixed pattern noise statistics of image data 有权
    用于收集图像数据固定模式噪声统计的系统和方法

    公开(公告)号:US08817120B2

    公开(公告)日:2014-08-26

    申请号:US13485124

    申请日:2012-05-31

    IPC分类号: H04N5/225

    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。

    Systems and methods for an imaging system using multiple image sensors
    79.
    发明授权
    Systems and methods for an imaging system using multiple image sensors 有权
    使用多个图像传感器的成像系统的系统和方法

    公开(公告)号:US08619128B2

    公开(公告)日:2013-12-31

    申请号:US12570966

    申请日:2009-09-30

    IPC分类号: H04N13/02

    摘要: Systems and methods may employ separate image sensors for collecting different types of data. In one embodiment, separate luma, chroma and 3-D image sensors may be used. The systems and methods may involve generating an alignment transform for the image sensors, and using the 3-D data from the 3-D image sensor to process disparity compensation. The systems and methods may involve image sensing, capture, processing, rendering and/or generating images. For example, one embodiment may provide an imaging system, including: a first image sensor configured to obtain luminance data of a scene; a second image sensor configured to obtain chrominance data of the scene; a third image sensor configured to obtain three-dimensional data of the scene; and an image processor configured to receive the luminance, chrominance and three-dimensional data and to generate a composite image corresponding to the scene from that data.

    摘要翻译: 系统和方法可以采用单独的图像传感器来收集不同类型的数据。 在一个实施例中,可以使用分开的亮度,色度和3-D图像传感器。 系统和方法可以涉及为图像传感器生成对准变换,并且使用来自3-D图像传感器的3-D数据来处理视差补偿。 系统和方法可以涉及图像感测,捕获,处理,渲染和/或生成图像。 例如,一个实施例可以提供一种成像系统,包括:第一图像传感器,被配置为获得场景的亮度数据; 第二图像传感器,被配置为获得场景的色度数据; 第三图像传感器,被配置为获得场景的三维数据; 以及被配置为接收亮度,色度和三维数据并且从该数据生成与场景相对应的合成图像的图像处理器。

    SYSTEMS AND METHODS FOR RAW IMAGE PROCESSING
    80.
    发明申请
    SYSTEMS AND METHODS FOR RAW IMAGE PROCESSING 有权
    用于RAW图像处理的系统和方法

    公开(公告)号:US20130321677A1

    公开(公告)日:2013-12-05

    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。