公开(公告)号：US20070030905A1

公开(公告)日：2007-02-08

申请号：US11198457

申请日：2005-08-05

申请人： Guy Cote

发明人： Guy Cote

IPC分类号： H04N11/02

CPC分类号： H04N7/26861 ,  H04N19/112 ,  H04N19/16 ,  H04N19/176 ,  H04N19/40 ,  H04N19/42 ,  H04N19/513 ,  H04N19/61

摘要： A video transcoder is disclosed. The video transcoder generally comprises a processor and a video digital signal processor. The processor may be formed on a first die. The video digital signal processor may be formed on a second die and coupled to the processor. The video digital signal processor may have (i) a first module configured to perform a first operation in decoding an input video stream in a first format and (ii) a second module configured to perform a second operation in coding an output video stream in a second format, wherein the first operation and the second operation are performed in parallel.

摘要翻译： 公开了视频代码转换器。 视频代码转换器通常包括处理器和视频数字信号处理器。 处理器可以形成在第一管芯上。 视频数字信号处理器可以形成在第二裸片上并耦合到处理器。 视频数字信号处理器可以具有（i）第一模块，其被配置为执行以第一格式对输入视频流进行解码的第一操作，以及（ii）被配置为执行第二操作以对输出视频流进行编码的第二模式 第二格式，其中并行执行第一操作和第二操作。

公开(公告)号：US11089247B2

公开(公告)日：2021-08-10

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 ,  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.

公开(公告)号：US09031319B2

公开(公告)日：2015-05-12

申请号：US13485341

申请日：2012-05-31

申请人： Guy Cote ,  Suk Hwan Lim ,  Munehiro Mori ,  Sheng Lin

发明人： Guy Cote ,  Suk Hwan Lim ,  Munehiro Mori ,  Sheng Lin

IPC分类号： G06K9/00 ,  G06T7/40 ,  H04N5/213

CPC分类号： G06T7/408 ,  H04N5/213

摘要： Systems, methods, and devices for sharpening image data are provided. One example of an image signal processing system includes a YCC processing pipeline that includes luma sharpening logic. The luma sharpening logic may sharpen the luma component while avoiding sharpening some noise. Specifically, a multi-scale unsharp mask filter may obtain unsharp signals by filtering an input luma component, and sharp component determination logic may determine sharp signals representing differences between the unsharp signals and the luma component. Sharp lookup tables may “core” the sharp signals, which may prevent some noise from being sharpened. Output logic may determine a sharpened output luma signal by combining the sharp signals with, for example, luma component or one of the unsharp signals.

摘要翻译： 提供了用于锐化图像数据的系统，方法和设备。 图像信号处理系统的一个示例包括包括亮度锐化逻辑的YCC处理流水线。 亮度锐化逻辑可以锐化亮度分量，同时避免锐化某些噪声。 具体地说，多尺度钝化掩模滤波器可以通过对输入亮度分量进行滤波来获得钝化信号，并且尖锐分量确定逻辑可以确定表示不清晰信号和亮度分量之间差异的尖锐信号。 锐度查找表可能会“清除”尖锐的信号，这可能会阻止某些噪点的锐化。 输出逻辑可以通过将尖锐信号与例如亮度分量或钝化信号之一组合来确定锐化的输出亮度信号。

公开(公告)号：US08923400B1

公开(公告)日：2014-12-30

申请号：US11939715

申请日：2007-11-14

申请人： José R. Alvarez ,  Guy Cote ,  Udit Budhia

发明人： José R. Alvarez ,  Guy Cote ,  Udit Budhia

IPC分类号： H04N7/12

CPC分类号： G06T5/003 ,  G06T7/20 ,  G06T2207/20201 ,  H04N19/527 ,  H04N19/533

摘要： An apparatus including a first circuit and a second circuit. The first circuit may be configured to generate (i) a first series of sequential frames, (ii) a plurality of local motion vectors for each of the frames, (iii) one or more global motion vectors for each of the frames, (iv) a second series of stabilized sequential frames, (v) a plurality of rough motion vectors and (vi) a digital bitstream in response to (i) a video input signal. The second circuit may be configured to generate a single motion vector in response to a plurality of motion vectors. The second circuit may be further configured to eliminate outlier vectors from the plurality of motion vectors.

摘要翻译： 一种包括第一电路和第二电路的装置。 第一电路可以被配置为产生（i）第一系列连续帧，（ii）每个帧的多个局部运动矢量，（iii）每个帧的一个或多个全局运动矢量，（iv ）第二系列稳定的顺序帧，（v）多个粗略运动矢量和（vi）响应于（i）视频输入信号的数字比特流。 第二电路可以被配置为响应于多个运动矢量生成单个运动矢量。 第二电路可以被进一步配置为从多个运动矢量中消除异常值向量。

公开(公告)号：US08922704B2

公开(公告)日：2014-12-30

申请号：US12873989

申请日：2010-09-01

申请人： Guy Cote ,  Jeffrey E. Frederiksen

发明人： Guy Cote ,  Jeffrey E. Frederiksen

IPC分类号： H04N5/232 ,  H04N9/73 ,  H04N5/367 ,  H04N9/04 ,  H04N5/347

CPC分类号： H04N9/735 ,  H04N5/23212 ,  H04N5/347 ,  H04N5/367 ,  H04N9/045

摘要： Various techniques are disclosed for collecting and processing auto-focus statistics data in an image signal processor (ISP). In one embodiment, a statistics collection engine in an ISP front-end processing unit may be configured to collect coarse (based on decimated raw data) and fine auto-focus statistics. Coarse auto-focus statistics may be collected on decimated Bayer RGB data and/or on linear camera luma values. Fine auto-focus statistics may be collected on raw Bayer RGB using a combination of a horizontal filter and edge detector, or may be collected on BayerY data (by applying a 3×1 transform to the raw Bayer RGB data). Edge sums may be accumulated using the filter outputs to determine auto-focus statistics.

摘要翻译： 公开了用于在图像信号处理器（ISP）中收集和处理自动对焦统计数据的各种技术。 在一个实施例中，ISP前端处理单元中的统计收集引擎可以被配置为收集粗略（基于抽取的原始数据）和精细的自动对焦统计。 可以在抽取的拜耳RGB数据和/或线性相机亮度值上收集粗略的自动对焦统计数据。 可以使用水平滤波器和边缘检测器的组合在原始拜耳RGB上收集精细的自动对焦统计信息，或者可以在拜耳数据上收集（通过对原始拜耳RGB数据应用3×1变换）。 可以使用滤波器输出积累边沿和，以确定自动对焦统计。

公开(公告)号：US08872946B2

公开(公告)日：2014-10-28

申请号：US13485056

申请日：2012-05-31

申请人： Guy Cote ,  Sheng Lin ,  Suk Hwan Lim ,  D. Amnon Silverstein ,  David Hayward ,  Simon Wolfenden Butler ,  Joseph Anthony Petolino, Jr. ,  Joseph P. Bratt

发明人： Guy Cote ,  Sheng Lin ,  Suk Hwan Lim ,  D. Amnon Silverstein ,  David Hayward ,  Simon Wolfenden Butler ,  Joseph Anthony Petolino, Jr. ,  Joseph P. Bratt

IPC分类号： H04N5/217

CPC分类号： H04N5/217 ,  H04N5/2176 ,  H04N5/357

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。

公开(公告)号：US08654853B2

公开(公告)日：2014-02-18

申请号：US13222118

申请日：2011-08-31

申请人： Guy Cote ,  Anthony Peter Joch ,  Lowell L. Winger

发明人： Guy Cote ,  Anthony Peter Joch ,  Lowell L. Winger

IPC分类号： H04B1/66

CPC分类号： H04N19/112 ,  H04N19/16 ,  H04N19/176 ,  H04N19/40 ,  H04N19/42 ,  H04N19/513 ,  H04N19/61

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。

公开(公告)号：US20130322753A1

公开(公告)日：2013-12-05

申请号：US13485421

申请日：2012-05-31

申请人： Suk Hwan Lim ,  D. Amnon Silverstein ,  Guy Cote ,  Steven David Hordley ,  Graham Finlayson ,  Weichun Ku ,  Joseph P. Bratt

发明人： Suk Hwan Lim ,  D. Amnon Silverstein ,  Guy Cote ,  Steven David Hordley ,  Graham Finlayson ,  Weichun Ku ,  Joseph P. Bratt

IPC分类号： G06T5/00

CPC分类号： G06T5/001 ,  G06K9/38 ,  G06T1/20 ,  G06T5/002 ,  G06T5/003 ,  G06T5/008 ,  G06T5/50 ,  G06T2207/10024 ,  G06T2207/20012 ,  G06T2207/20028 ,  G06T2207/20208

摘要： Systems and methods for local tone mapping are provided. In one example, an electronic device includes an electronic display, an imaging device, and an image signal processor. The electronic display may display images of a first bit depth, and the imaging device may include an image sensor that obtains image data of a higher bit depth than the first bit depth. The image signal processor may process the image data, and may include local tone mapping logic that may apply a spatially varying local tone curve to a pixel of the image data to preserve local contrast when displayed on the display. The local tone mapping logic may smooth the local tone curve applied to the intensity difference between the pixel and another nearby pixel exceeds a threshold.

公开(公告)号：US20130321672A1

公开(公告)日：2013-12-05

申请号：US13485124

申请日：2012-05-31

申请人： D. Amnon Silverstein ,  Sheng Lin ,  Suk Hwan Lim ,  Guy Cote ,  Haitao Guo

发明人： D. Amnon Silverstein ,  Sheng Lin ,  Suk Hwan Lim ,  Guy Cote ,  Haitao Guo

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。

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

CPC分类号： H04N19/198 ,  H04N19/126 ,  H04N19/172 ,  H04N19/176 ,  H04N19/196

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。