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1. 发明授权

US08885712B1 Image frame management 有权
标题翻译：图像帧管理
公开(公告)号：US08885712B1
公开(公告)日：2014-11-11
申请号：US13764095
申请日：2013-02-11
申请人： Marvell International Ltd.
发明人： Vipin Namboodiri , Keepudi Muni Babu , Mainak Biswas
IPC分类号： H04N7/12 , H04N19/50
CPC分类号： H04N19/433 , H04N19/423 , H04N19/50
摘要： Systems, methods, and other embodiments associated with image frame management are described. According to one embodiment, an apparatus includes classifier logic to categorize frames that represent an image as either reference frames or non-reference frames, where the categorization is based, at least in part, on motion vectors between the frames. The apparatus further includes management logic to store the reference frames and to delete the non-reference frames. Image generation logic may then reproduce the image by using the stored reference frames.
摘要翻译：描述与图像帧管理相关联的系统，方法和其他实施例。根据一个实施例，一种装置包括分类器逻辑，用于将表示图像的帧分类为参考帧或非参考帧，其中分类至少部分地基于帧之间的运动矢量。该装置还包括用于存储参考帧并且删除非参考帧的管理逻辑。然后，图像生成逻辑可以通过使用存储的参考帧来再现图像。

2. 发明授权

US09247243B1 Interpolated video error concealment 有权
标题翻译：内插视频错误隐藏
公开(公告)号：US09247243B1
公开(公告)日：2016-01-26
申请号：US13722614
申请日：2012-12-20
申请人： Marvell International Ltd.
发明人： Vipin Namboodiri , Krishna Prasad Agara Venkatesha Rao
IPC分类号： H04N7/12 , H04N11/02 , H04N11/04 , G06F15/173 , H04N19/132
CPC分类号： H04N19/117 , H04N19/132 , H04N19/137 , H04N19/154 , H04N19/895
摘要： Embodiments of the present disclosure provide a method that comprises receiving a first stream of video frames at a first frame rate and generating a second stream of video frames at a second frame rate. The method also comprises interpolating between a pair of adjacent video frames of the first stream of video frames to produce a first number of interpolated intermediate video frames in a particular sequence of the intermediate video frames. The method further comprises duplicating at least one of the adjacent video frames of the pair of adjacent video frames to produce a second number of duplicated intermediate video frames in the particular sequence of the intermediate video frames. The method further comprises, in response to a change in observed interpolation quality, dynamically changing the first number of interpolated intermediate video frames and the second number of duplicated intermediate video frames.
摘要翻译：本公开的实施例提供了一种方法，其包括以第一帧速率接收视频帧的第一流并以第二帧速率生成视频帧的第二流。该方法还包括在视频帧的第一视频流的一对相邻视频帧之间进行内插以在中间视频帧的特定序列中产生第一数量的内插中间视频帧。该方法还包括复制一对相邻视频帧中的至少一个相邻视频帧以产生中间视频帧的特定序列中的第二数量的复制中间视频帧。该方法还包括响应于观察到的内插质量的变化，动态地改变第一数量的内插中间视频帧和第二数量的复制中间视频帧。

3. 发明授权

US08787696B1 Method and apparatus for replacing a block of pixels in a digital image frame to conceal an error associated with the block of pixels 有权
标题翻译：用于替换数字图像帧中的像素块以隐藏与像素块相关联的错误的方法和装置
公开(公告)号：US08787696B1
公开(公告)日：2014-07-22
申请号：US13951533
申请日：2013-07-26
申请人： Marvell International Ltd.
发明人： Mainak Biswas , Vipin Namboodiri
IPC分类号： G06K9/40
CPC分类号： H04N7/014 , H04N5/142 , H04N5/145
摘要： In one embodiment the present invention includes a digital image processing method for concealing errors. The method includes determining error pixel locations based on motion vectors and determining if the error pixel locations in a current frame are on an edge of an object in the current frame. If an error pixel location is on an edge, then a search of pixel values is performed in the current frame along the edge for a replacement pixel value. If the error pixel location is not on an edge, then a search of pixel values is performed in a region adjacent to the edge for the replacement pixel value.
摘要翻译：在一个实施例中，本发明包括用于隐藏错误的数字图像处理方法。该方法包括基于运动矢量确定误差像素位置，并确定当前帧中的误差像素位置是否在当前帧中的对象的边缘上。如果错误像素位置在边缘上，则在沿着边缘的当前帧中针对替换像素值执行像素值的搜索。如果误差像素位置不在边缘上，则在与替换像素值的边缘相邻的区域中执行像素值的搜索。

4. 发明授权

US08692935B1 Video interpolation mode based on merit 有权
标题翻译：视频插值模式基于优点
公开(公告)号：US08692935B1
公开(公告)日：2014-04-08
申请号：US13658662
申请日：2012-10-23
申请人： Marvell International Ltd.
发明人： Vipin Namboodiri
IPC分类号： H04N7/01
CPC分类号： H04N7/014 , G09G2320/0261 , H04N7/0127 , H04N7/0135
摘要： Embodiments of the present disclosure provide a method that comprises, based at least on two frames of a plurality of frames of a video stream, performing interpolation according to an interpolation mode to generate one or more interpolation frames. The method also comprises determining a merit of the interpolation based on one or more of (i) a measure of errors of the interpolation, and (ii) a measure of accuracy of one or more occlusion or reveal regions of the one or more interpolation frames. The method further comprises dynamically changing the interpolation mode based at least on the determined merit of the interpolation.
摘要翻译：本公开的实施例提供了一种方法，其包括基于视频流的多个帧的至少两帧，根据内插模式执行内插以生成一个或多个内插帧。该方法还包括基于以下中的一个或多个来确定内插的优点：（i）插值的误差的度量，以及（ii）一个或多个内插帧的一个或多个遮挡或显示区域的精度的度量。该方法还包括至少基于所确定的内插优点来动态地改变插值模式。

5. 发明授权

US09197891B1 Systems and methods for periodic structure handling for motion compensation 有权
标题翻译：用于运动补偿的周期性结构处理的系统和方法
公开(公告)号：US09197891B1
公开(公告)日：2015-11-24
申请号：US13721764
申请日：2012-12-20
申请人： Marvell International, Ltd.
发明人： Vipin Namboodiri
IPC分类号： H04N7/12 , H04N11/02 , H04N11/04 , G06K9/00 , H04N19/51
CPC分类号： H04N19/521 , H04N19/00684 , H04N19/527
摘要： Systems and methods for estimating motion in an image of a video signal are provided. A plurality of motion vectors for the image are estimated. A segment of the image is identified, where the segment is a portion of the image including a periodic structure. A dominant motion representation of the segment is determined. The dominant motion representation is used to modify certain motion vectors of the plurality of motion vectors.
摘要翻译：提供了用于估计视频信号的图像中的运动的系统和方法。估计图像的多个运动矢量。识别图像的片段，其中片段是包括周期性结构的图像的一部分。确定该段的主要运动表示。主要运动表示用于修改多个运动矢量的某些运动矢量。

6. 发明授权

US09042681B1 Interpolated video error concealment 有权
标题翻译：内插视频错误隐藏
公开(公告)号：US09042681B1
公开(公告)日：2015-05-26
申请号：US13722700
申请日：2012-12-20
申请人： Marvell International Ltd.
发明人： Vipin Namboodiri , Krishna Prasad Agara Venkatesha Rao
IPC分类号： G06K9/32 , H04N7/01
CPC分类号： H04N7/014
摘要： Embodiments of the present disclosure provide a method that comprises receiving a motion-interpolated pixel of an interpolated video frame, wherein the motion-interpolated pixel is based at least in part on a pair of anchor video frames. The method further comprises blending the motion-interpolated pixel with one or more anchor pixels of the pair of anchor video frames to produce a temporally filtered pixel, wherein the one or more anchor pixels correspond in position to the motion-interpolated pixel of the interpolated video frame. The method also comprises substituting the temporally filtered pixel for the motion-interpolated pixel in the interpolated video frame.
摘要翻译：本公开的实施例提供了一种方法，其包括接收内插视频帧的运动内插像素，其中所述运动内插像素至少部分地基于一对锚视频帧。所述方法还包括将所述运动内插像素与所述一对锚视频帧对中的一个或多个锚点像素进行混合以产生时间上被滤波的像素，其中所述一个或多个定位像素位置与所插值视频的运动内插像素对应帧。该方法还包括将经时间滤波的像素替换为内插视频帧中的运动内插像素。

7. 发明授权

US09031131B1 Picture rate conversion system architecture 有权
标题翻译：图像速率转换系统架构
公开(公告)号：US09031131B1
公开(公告)日：2015-05-12
申请号：US13899232
申请日：2013-05-21
申请人： Marvell International Ltd.
发明人： Kaustubh Milind Patankar , Vipin Namboodiri , Sujith Srivivasan , Mainak Biswas
IPC分类号： H04N7/18 , H04N19/51 , H04N19/176 , H04N5/14
CPC分类号： H04N19/521 , H04N5/145 , H04N7/014
摘要： Systems and methods for converting a picture frame rate from a source video at a first rate to a target video at a second rate via interpolation of an intermediate frame. In one implementation, the system includes a phase plane correlation calculator including a low pass filter and a high pass filter for receiving previous frame data and current frame data where the phase plane correlation calculator is configured to generate a first motion vector based upon low pass representations and high pass representations. The system may also include a motion compensated interpolator that receives the first motion vector and an additional input motion vector and determines a final motion vector for use in interpolation. The system may further include an intermediate frame generator configured to generate the intermediate frame utilizing the final motion vector.
摘要翻译：用于通过中间帧的内插将来自第一速率的源视频的图像帧速率以第二速率转换为目标视频的系统和方法。在一个实施方式中，该系统包括相位平面相关计算器，其包括低通滤波器和高通滤波器，用于接收先前的帧数据和当前帧数据，其中相平面相关计算器被配置为基于低通表示产生第一运动矢量和高通表示。系统还可以包括运动补偿内插器，其接收第一运动矢量和附加输入运动矢量，并且确定用于内插的最终运动矢量。该系统可以进一步包括被配置为利用最终运动矢量生成中间帧的中间帧发生器。

8. 发明授权

US08922712B1 Method and apparatus for buffering anchor frames in motion compensation systems 有权
公开(公告)号：US08922712B1
公开(公告)日：2014-12-30
申请号：US14223479
申请日：2014-03-24
申请人： Marvell International Ltd.
发明人： Vipin Namboodiri
IPC分类号： H04N7/01 , H04N11/20
CPC分类号： H04N7/014 , G09G3/20 , G09G5/39 , G09G2320/0261 , G09G2320/106 , G09G2340/02 , G09G2340/0414 , G09G2340/0435 , H04N5/145 , H04N19/428 , H04N19/513 , H04N19/58 , H04N19/59 , H04N19/61
摘要： In an embodiment, there is provided a video processing component comprising a compensation engine configured to generate pixels of a first video frame from a second video frame based at least in part on specified pixel motion; and an access buffer configured to store pixel data corresponding to pixels of the second video frame for reference by the compensation engine, wherein the pixel data is stored by the access buffer at different vertical resolutions depending on vertical distances of the pixels corresponding to the pixel data from a target pixel that is indicated by the compensation engine.

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