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    • 4. 发明申请
    • CALCULATION OF TEMPORALLY COHERENT DISPARITY FROM SEQUENCE OF VIDEO FRAMES
    • 从视频帧序列计算时间相干差
    • WO2017143572A1
    • 2017-08-31
    • PCT/CN2016/074584
    • 2016-02-25
    • INTEL CORPORATIONWU, YiJIANG, Yong
    • WU, YiJIANG, Yong
    • H04N13/00
    • H04N13/128H04N13/144H04N2013/0085
    • Techniques are provided for calculating temporally coherent disparity values for pixels in a sequence of image frames. An example method may include calculating initial spatial disparity costs between a pixel of a first image frame from a reference camera and pixels from an image frame from a secondary camera. The method may also include estimating a motion vector for the pixel of the first reference camera image frame to a corresponding pixel from a second reference camera image frame. The method may further include calculating a confidence value for the estimated motion vector based on a measure of similarity between the colors of the pixels of the first and second image frames from the reference camera. The method may further include calculating temporally coherent disparity costs based on the initial spatial disparity costs weighted by the confidence value and selecting a disparity value based on those costs.
    • 提供了用于计算图像帧序列中的像素的时间相干视差值的技术。 示例方法可以包括计算来自参考相机的第一图像帧的像素和来自辅助相机的来自图像帧的像素之间的初始空间视差成本。 该方法还可以包括将第一参考相机图像帧的像素的运动矢量估计为来自第二参考相机图像帧的对应像素。 该方法可以进一步包括基于来自参考相机的第一和第二图像帧的像素的颜色之间的相似性度量来计算估计的运动向量的置信度值。 该方法可以进一步包括基于由置信度值加权的初始空间视差成本并且基于那些成本选择视差值来计算时间上一致的视差成本。
    • 10. 发明申请
    • VIDEO COMMUNICATION WITH THREE DIMENSIONAL PERCEPTION
    • 具有三维视觉的视频通信
    • WO2014022170A1
    • 2014-02-06
    • PCT/US2013/051844
    • 2013-07-24
    • INTEL CORPORATIONWU, YiSUN, WeiCHU, Michael M.DRESHAJ, ErmalMUSE, PhilipAINSWORTH, Lucas B.SHOEMAKER, GarthKOZINTSEV, Igor V.
    • WU, YiSUN, WeiCHU, Michael M.DRESHAJ, ErmalMUSE, PhilipAINSWORTH, Lucas B.SHOEMAKER, GarthKOZINTSEV, Igor V.
    • G06T15/00H04N13/00
    • H04N13/376G06T7/11G06T7/194G06T2207/10028H04N5/2226H04N5/23219H04N7/147H04N13/156H04N13/161H04N13/194H04N13/20H04N13/30H04N2013/0092H04N2213/006
    • Generally, this disclosure provides methods and systems for real-time video communication with three dimensional perception image rendering through generated parallax effects based on identification, segmentation and tracking of foreground and background layers of an image. The system may include an image segmentation module configured to segment a current local video frame into a local foreground layer and a local background layer and to generate a local foreground mask based on an estimated boundary between the local foreground layer and the local background layer, wherein the current local video frame comprises a local color video image frame and a local image depth data frame; a face tracking module configured to track a position of a local user's face based on the current local video frame and one or more previous local video frames; a background layer estimation module configured to estimate a remote background layer associated with a current remote video frame and a remote foreground mask received from a remote video processor; and an image rendering module configured to render a 3D perception image based on the estimated remote background layer, the current remote video frame and the remote foreground mask received from the remote video processor, and the tracked position of the local user's face.
    • 通常,本公开提供了通过基于图像的前景和背景层的识别,分割和跟踪的生成的视差效应来实现具有三维感知图像呈现的实时视频通信的方法和系统。 该系统可以包括图像分割模块,该图像分割模块被配置为基于局部前景层和本地背景层之间的估计边界将当前局部视频帧分割成局部前景层和本地背景层并且生成局部前景屏蔽,其中 当前的本地视频帧包括局部彩色视频图像帧和局部图像深度数据帧; 面部跟踪模块,被配置为基于当前本地视频帧和一个或多个先前本地视频帧来跟踪本地用户的脸部的位置; 背景层估计模块,被配置为估计与当前远程视频帧相关联的远程背景层和从远程视频处理器接收的远程前景屏蔽; 以及图像渲染模块,被配置为基于从远程视频处理器接收的估计的远程背景层,当前远程视频帧和远程前景屏蔽以及本地用户的脸部的跟踪位置来渲染3D感知图像。