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1. 发明授权

US11295427B2 Methods and systems for image processing with multiple image sources 有权
公开(公告)号：US11295427B2
公开(公告)日：2022-04-05
申请号：US16792005
申请日：2020-02-14
申请人： Pixelworks, Inc.
发明人： Neil Woodall , Yue Ma , Hongmin (Bob) Zhang
IPC分类号： G06T5/50 , H04N5/265 , G06T7/20 , G06T5/00 , H04N7/01 , G06T5/20
摘要： Various methods and systems are provided for image processing for multiple cameras. In one embodiment, a method comprises acquiring image frames with a plurality of image frame sources configured with different acquisition settings, processing the image frames based on the different acquisition settings to generate at least one final image frame, and outputting the at least one final image frame. In this way, information from different image frame sources such as cameras may be leveraged to achieve increased frame rates with improved image quality and a desired motion appearance.

2. 发明授权

US10580384B1 Panel calibration using multiple non-linear models 有权
公开(公告)号：US10580384B1
公开(公告)日：2020-03-03
申请号：US15946261
申请日：2018-04-05
申请人： PIXELWORKS, INC.
发明人： Neil Woodall
IPC分类号： G09G5/02
摘要： A method of calibrating a display panel including making measurements of color components displayed on the display panel, using the measurements to generate at least two non-linear models for each color component, receiving an input image consisting of one or more pixels represented by input color values, calculating a crosstalk gain for a given value of the color components using the generated non-linear models and the input values of a pixel, applying the crosstalk gain to the color components of the pixel to create crosstalk compensated component values, and displaying an image using the crosstalk compensated component values.

3. 发明授权

US10230920B1 Adjusting interpolation phase for MEMC using image analysis 有权
公开(公告)号：US10230920B1
公开(公告)日：2019-03-12
申请号：US15833719
申请日：2017-12-06
申请人： PIXELWORKS, INC.
发明人： Minghui Yang , Neil Woodall
IPC分类号： H04N7/01 , H04N11/20 , H04N5/14
摘要： A method of displaying variable rate video data includes receiving a signal from a display indicating that the display is ready to accept a frame of video data, analyzing image content of scenes in the video data, using the image content of scenes in the video data to cluster the scenes into scene types based upon a motion level, adjusting motion estimation and motion compensation to produce a variable output frame rate of the video data not synchronized with an input frame rate, the variable output frame rate based upon the scene type, wherein the variable output frame rate employs interpolated frames, wherein interpolated phases used to form the interpolated frames are determined by the motion level and a phase relationship between the input frames and the display timing, receiving the video data at the variable output frame rate at a display panel, and displaying the video data at the variable output frame rate.

4. 发明授权

US10142651B1 Frame rate conversion with partial motion vector 有权
公开(公告)号：US10142651B1
公开(公告)日：2018-11-27
申请号：US14567064
申请日：2014-12-11
申请人： PIXELWORKS, INC.
发明人： Guohua Cheng , Yue Ma , Neil Woodall , Bob Zhang
IPC分类号： H04N19/513 , H04N19/46
摘要： A system can include a memory and a motion vector calculator (MVC) configured to receive a block from the memory, the MVC including an MVC core configured to generate a partial motion vector (MV) for the block, a halo reduction block configured to perform halo reduction on the partial MV, and an MV post-processing block configured to smooth the partial MV and output the smoothed partial MV.

5. 发明授权

US09734559B1 Match error compensation for super-resolution images 有权
公开(公告)号：US09734559B1
公开(公告)日：2017-08-15
申请号：US14553817
申请日：2014-11-25
申请人： PIXELWORKS, INC.
发明人： Guodong Liu , Junhua Chen , Neil Woodall , Yue Ma , Bob Zhang
IPC分类号： G06T3/40
CPC分类号： G06T3/4053
摘要： A method of compensating for match errors while generating a super-resolution image, includes receiving, at a processor, an input image having a first resolution forming a low resolution layer, identifying a patch in a unknown high resolution image layer, identifying a corresponding low resolution patch in the low resolution layer, finding at least one matched patch in a match layer having a resolution lower than the first resolution, identifying at least one copy patch in a copy layer having a resolution lower than the high resolution layer, the copy patch to be copied to the high resolution layer, determining an match error between the at least one matched patch and a corresponding low resolution patch, selecting a matrix to transform the match error to provide compensation for the high resolution patch as match error compensation, and modifying the high resolution patch using the match error compensation.

6. 发明授权

US09516389B1 On screen display detection 有权
标题翻译：屏幕显示检测
公开(公告)号：US09516389B1
公开(公告)日：2016-12-06
申请号：US12966894
申请日：2010-12-13
申请人： Guohua Cheng , Bob Zhang , Neil Woodall , Jian (James) Zhou
发明人： Guohua Cheng , Bob Zhang , Neil Woodall , Jian (James) Zhou
IPC分类号： H04N5/50 , H04N21/485 , H04N5/44
CPC分类号： H04N21/485 , H04N5/4403 , H04N21/4316 , H04N21/4318 , H04N21/4854
摘要： An on-screen display (OSD) processing system can include video data fetch modules to receive video data from a video source, edge detection modules to detect an edge of a region within a scene represented by the video data, edge processing modules to process results from the edge detection modules, and an OSD confidence level adjustment module to adjust an OSD confidence level corresponding to the region within the scene.
摘要翻译：屏幕显示（OSD）处理系统可以包括视频数据提取模块以从视频源接收视频数据，边缘检测模块以检测由视频数据表示的场景内的区域的边缘，边缘处理模块以处理结果以及OSD置信度调整模块，以调整与场景内的区域对应的OSD置信度。

7. 发明授权

US09123140B1 Recovering details in single frame super resolution images 有权
标题翻译：在单帧超分辨率图像中恢复细节
公开(公告)号：US09123140B1
公开(公告)日：2015-09-01
申请号：US14036718
申请日：2013-09-25
申请人： Pixelworks, Inc.
发明人： Guodong Liu , Bob Zhang , Junhua Chen , Yue Ma
IPC分类号： G06K9/32 , G06T3/40
CPC分类号： G06T3/4053
摘要： A method of generating a super-resolution image from a single frame of image data, includes receiving, at a processor, a frame of image data have a first resolution as an original image layer, generating an estimated super-resolution image as a high resolution image layer, the estimated super-resolution image having a second resolution, the second resolution being higher than the first resolution from the frame of original image data, generating a low resolution image layer by down sampling the frame of image data, the low resolution image layer having a resolution lower than the first resolution, down sampling the estimated super-resolution image to produce an intermediate image layer having an intermediate resolution between the first resolution and the second resolution, and selectively copying image data from the original image layer to the super-resolution image layer to produce a final super-resolution image.
摘要翻译：一种从单个图像数据帧生成超分辨率图像的方法包括在处理器处接收图像数据的帧具有作为原始图像层的第一分辨率，生成估计的超分辨率图像作为高分辨率图像层，具有第二分辨率的估计超分辨率图像，第二分辨率高于来自原始图像数据的帧的第一分辨率，通过对图像数据的帧进行下采样来生成低分辨率图像层，低分辨率图像具有分辨率低于第一分辨率的层，对估计的超分辨率图像进行下采样以产生具有第一分辨率和第二分辨率之间的中间分辨率的中间图像层，并且将图像数据从原始图像层选择性地复制到超级分辨率图像层以产生最终的超分辨率图像。

8. 发明授权

US08804036B1 Encoding for super resolution playback 有权
标题翻译：编码超分辨率播放
公开(公告)号：US08804036B1
公开(公告)日：2014-08-12
申请号：US13194860
申请日：2011-07-29
申请人： Neil Woodall
发明人： Neil Woodall
IPC分类号： H04N5/04
CPC分类号： H04N7/0125 , H04N7/012
摘要： A method of transmitting video data includes receiving a frame of video data of a first resolution from an image capture device at a video transmission device and generating interlaced fields of the frame of video data at the video transmission device by applying a filter with a different set of filter coefficients to at least one field than is applied at least one other field. A method of producing video data of a particular resolution includes generating estimated high resolution video data from low resolution video data received at a display device, producing estimated low resolution video data from the estimated high resolution video data by applying a filter to the estimated high resolution video data, differencing the estimated low resolution video data and the received low resolution video data to generate difference data, and using the difference data to generate new estimated high resolution video data.
摘要翻译：一种发送视频数据的方法包括：从视频传输装置的图像捕获装置接收第一分辨率的视频数据帧，并通过应用具有不同集合的滤波器在视频传输装置处产生视频数据帧的隔行扫描场的滤波器系数至少应用至少一个其他场的场。一种产生特定分辨率的视频数据的方法包括从在显示装置处接收的低分辨率视频数据产生估计的高分辨率视频数据，通过将估计的高分辨率应用滤波器从所估计的高分辨率视频数据产生估计的低分辨率视频数据视频数据，差分估计的低分辨率视频数据和接收到的低分辨率视频数据，以产生差分数据，并使用差分数据生成新的估计的高分辨率视频数据。

9. 发明授权

US08437580B2 Artifacts measurement on video decomposable properties by dynamic fuzzy reasoning 有权
标题翻译：通过动态模糊推理对视频分解属性进行人工制品测量
公开(公告)号：US08437580B2
公开(公告)日：2013-05-07
申请号：US12943819
申请日：2010-11-10
申请人： Yue Ma , Hongmin Zhang
发明人： Yue Ma , Hongmin Zhang
IPC分类号： G06K9/32
CPC分类号： H04N5/21 , G06T3/4007 , G09G5/00 , G09G2310/0229 , G09G2320/0247 , G09G2320/0261 , H04N5/142 , H04N7/012 , H04N7/0142
摘要： To determine if a pixel exhibits artifacts, statistics are generated for the pixel and its neighbors. These statistics are compared with thresholds. If the comparison of the statistics and the thresholds suggests that the pixel exhibits a pixel artifact, then recourse can be taken, either to adjust the pixel value in some way, or to reject the angle of interpolation used in computing the value for the target pixel.
摘要翻译：为了确定像素是否显示人为物体，将为像素及其邻居生成统计信息。这些统计数据与阈值进行比较。如果统计量和阈值的比较表明像素表现出像素伪影，则可以采取追索方式，以某种方式调整像素值，或者拒绝用于计算目标像素的值的内插角度。

10. 发明申请

US20110052058A1 ARTIFACTS MEASUREMENT ON VIDEO DECOMPOSABLE PROPERTIES BY DYNAMIC FUZZY REASONING 有权
标题翻译：通过动态FUZZY推理测量视频不可逆性质
公开(公告)号：US20110052058A1
公开(公告)日：2011-03-03
申请号：US12943819
申请日：2010-11-10
申请人： Yue Ma , Hongmin Zhang
发明人： Yue Ma , Hongmin Zhang
IPC分类号： G06K9/40 , G06K9/36 , G06K9/00
CPC分类号： H04N5/21 , G06T3/4007 , G09G5/00 , G09G2310/0229 , G09G2320/0247 , G09G2320/0261 , H04N5/142 , H04N7/012 , H04N7/0142
摘要： To determine if a pixel exhibits artifacts, statistics are generated for the pixel and its neighbors. These statistics are compared with thresholds. If the comparison of the statistics and the thresholds suggests that the pixel exhibits a pixel artifact, then recourse can be taken, either to adjust the pixel value in some way, or to reject the angle of interpolation used in computing the value for the target pixel.
摘要翻译：为了确定像素是否显示人为物体，将为像素及其邻居生成统计信息。这些统计数据与阈值进行比较。如果统计量和阈值的比较表明像素表现出像素伪影，则可以采取追索方式，以某种方式调整像素值，或者拒绝用于计算目标像素的值的内插角度。

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