Environmental Map Generation from a Digital Image

    公开(公告)号:US20180122044A1

    公开(公告)日:2018-05-03

    申请号:US15377875

    申请日:2016-12-13

    CPC classification number: G06T3/20 G06T3/40 G06T5/005 G06T7/60

    Abstract: Environmental map generation techniques and systems are described. A digital image is scaled to achieve a target aspect ratio using a content aware scaling technique. A canvas is generated that is dimensionally larger than the scaled digital image and the scaled digital image is inserted within the canvas thereby resulting in an unfilled portion of the canvas. An initially filled canvas is then generated by filling the unfilled portion using a content aware fill technique based on the inserted digital image. A plurality of polar coordinate canvases is formed by transforming original coordinates of the canvas into polar coordinates. The unfilled portions of the polar coordinate canvases are filled using a content-aware fill technique that is initialized based on the initially filled canvas. An environmental map of the digital image is generated by combining a plurality of original coordinate canvas portions formed from the polar coordinate canvases.

    WARPING PANORAMIC IMAGES TO FIT A BOUNDARY

    公开(公告)号:US20180082401A1

    公开(公告)日:2018-03-22

    申请号:US15268299

    申请日:2016-09-16

    Inventor: Xue Bai Jue Wang

    CPC classification number: G06T3/0093 G06T3/4038 G06T11/60 G06T2210/12

    Abstract: The present disclosure is directed toward systems and method for warping a panoramic image to fit a predetermined shape using content-unaware warping techniques. For example, systems and methods described herein involve generating a mesh grid for a panoramic image with skewed edges by sampling boundary points around edges of the panoramic image and interpolated interior vertex points from the boundary points. Further, systems and methods described herein involve warping the mesh grid and underlying pixels of the panoramic image to fit a predetermined boundary. Further, systems and methods described herein involve generating the mesh grid and warping the panoramic image without consideration of content included therein and without overly-warping individual cells of the mesh grid and underlying pixels of the panoramic image.

    Flexible video object boundary tracking
    3.
    发明授权
    Flexible video object boundary tracking 有权
    灵活的视频对象边界跟踪

    公开(公告)号:US09569866B2

    公开(公告)日:2017-02-14

    申请号:US14643630

    申请日:2015-03-10

    Inventor: Xue Bai Jue Wang Yao Lu

    Abstract: Techniques involving flexible video object boundary tracking are described. One or more curves, such as Bezier curves, are received as drawn by a user on an initial frame of video to define a boundary of an object in the frame. The curves are then mapped to a subsequent or previous frame of the video where the object is included but has a new or changed boundary. A segmentation boundary is determined for the object in the subsequent frame and endpoints of segments of the curves are snapped to the segmentation boundary. Additionally, confidence values are determined for subregions of the frame that include portions of the curves. These confidence values are used to update control points on the curve segments to fit the curve segments to the new or changed boundary of the object in the frame.

    Abstract translation: 描述了涉及灵活视频对象边界跟踪的技术。 一个或多个曲线,例如Bezier曲线,由用户在视频的初始帧上绘制,以定义帧中的对象的边界。 然后将曲线映射到包含对象的视频的后续或前一帧,但具有新的或改变的边界。 为后续帧中的对象确定分割边界,并且将曲线的段的端点捕捉到分割边界。 另外,对包括曲线部分的帧的子区域确定置信度值。 这些置信度值用于更新曲线段上的控制点,以将曲线段拟合到框架中对象的新边界或更改的边界。

    Methods and Apparatus for Chatter Reduction in Video Object Segmentation Using a Variable Bandwidth Search Region
    4.
    发明申请
    Methods and Apparatus for Chatter Reduction in Video Object Segmentation Using a Variable Bandwidth Search Region 有权
    使用可变带宽搜索区域的视频对象分割中减少抖动的方法和装置

    公开(公告)号:US20130129156A1

    公开(公告)日:2013-05-23

    申请号:US13742213

    申请日:2013-01-15

    Abstract: Systems, methods, and computer-readable storage media for chatter reduction in video object segmentation using a variable bandwidth search region. A variable bandwidth search region generation method may be applied to a uniform search region to generate a variable bandwidth search region that reduces the search range for segmentation methods such as a graph cut method. The method may identify parts of the contour that are moving slowly, and reduce the search region bandwidth in those places to stabilize the segmentation. This method may determine a bandwidth for each of a plurality of local windows of an image according to an estimate of how much an object in the image has moved from a previous image. The method may blend the bandwidths for the plurality of local windows to generate a blended map. The method may then generate a variable bandwidth search region for an object according to the blended map.

    Abstract translation: 用于使用可变带宽搜索区域的视频对象分割中的抖动减少的系统,方法和计算机可读存储介质。 可变带宽搜索区域生成方法可以应用于均匀搜索区域以生成可变带宽搜索区域,其减少诸如图形切割方法的分割方法的搜索范围。 该方法可以识别正在缓慢移动的轮廓的部分,并且减少那些位置的搜索区域带宽以稳定分割。 该方法可以根据对图像中的对象已经从先前图像移动多少的估计来确定图像的多个局部窗口中的每一个的带宽。 该方法可以混合多个本地窗口的带宽以生成混合映射。 然后,该方法可以根据混合映射生成对象的可变带宽搜索区域。

    Warping panoramic images to fit a boundary

    公开(公告)号:US09978120B2

    公开(公告)日:2018-05-22

    申请号:US15268299

    申请日:2016-09-16

    Inventor: Xue Bai Jue Wang

    CPC classification number: G06T3/0093 G06T3/4038 G06T11/60 G06T2210/12

    Abstract: The present disclosure is directed toward systems and method for warping a panoramic image to fit a predetermined shape using content-unaware warping techniques. For example, systems and methods described herein involve generating a mesh grid for a panoramic image with skewed edges by sampling boundary points around edges of the panoramic image and interpolated interior vertex points from the boundary points. Further, systems and methods described herein involve warping the mesh grid and underlying pixels of the panoramic image to fit a predetermined boundary. Further, systems and methods described herein involve generating the mesh grid and warping the panoramic image without consideration of content included therein and without overly-warping individual cells of the mesh grid and underlying pixels of the panoramic image.

    Flexible Video Object Boundary Tracking
    6.
    发明申请
    Flexible Video Object Boundary Tracking 有权
    灵活的视频对象边界跟踪

    公开(公告)号:US20160267690A1

    公开(公告)日:2016-09-15

    申请号:US14643630

    申请日:2015-03-10

    Inventor: Xue Bai Jue Wang Yao Lu

    Abstract: Techniques involving flexible video object boundary tracking are described. One or more curves, such as Bezier curves, are received as drawn by a user on an initial frame of video to define a boundary of an object in the frame. The curves are then mapped to a subsequent or previous frame of the video where the object is included but has a new or changed boundary. A segmentation boundary is determined for the object in the subsequent frame and endpoints of segments of the curves are snapped to the segmentation boundary. Additionally, confidence values are determined for subregions of the frame that include portions of the curves. These confidence values are used to update control points on the curve segments to fit the curve segments to the new or changed boundary of the object in the frame.

    Abstract translation: 描述了涉及灵活视频对象边界跟踪的技术。 一个或多个曲线,例如Bezier曲线,由用户在视频的初始帧上绘制,以定义帧中的对象的边界。 然后将曲线映射到包含对象的视频的后续或前一帧,但具有新的或改变的边界。 为后续帧中的对象确定分割边界,并且将曲线的段的端点捕捉到分割边界。 另外,对包括曲线部分的帧的子区域确定置信度值。 这些置信度值用于更新曲线段上的控制点,以将曲线段拟合到框架中对象的新边界或更改的边界。

    Methods and apparatus for chatter reduction in video object segmentation using a variable bandwidth search region
    7.
    发明授权
    Methods and apparatus for chatter reduction in video object segmentation using a variable bandwidth search region 有权
    使用可变带宽搜索区域进行视频对象分割的抖动减少的方法和装置

    公开(公告)号:US08971584B2

    公开(公告)日:2015-03-03

    申请号:US13742213

    申请日:2013-01-15

    Abstract: Systems, methods, and computer-readable storage media for chatter reduction in video object segmentation using a variable bandwidth search region. A variable bandwidth search region generation method may be applied to a uniform search region to generate a variable bandwidth search region that reduces the search range for segmentation methods such as a graph cut method. The method may identify parts of the contour that are moving slowly, and reduce the search region bandwidth in those places to stabilize the segmentation. This method may determine a bandwidth for each of a plurality of local windows of an image according to an estimate of how much an object in the image has moved from a previous image. The method may blend the bandwidths for the plurality of local windows to generate a blended map. The method may then generate a variable bandwidth search region for an object according to the blended map.

    Abstract translation: 用于使用可变带宽搜索区域的视频对象分割中的抖动减少的系统,方法和计算机可读存储介质。 可变带宽搜索区域生成方法可以应用于均匀搜索区域以生成可变带宽搜索区域,其减少诸如图形切割方法的分割方法的搜索范围。 该方法可以识别正在缓慢移动的轮廓的部分,并且减少那些位置的搜索区域带宽以稳定分割。 该方法可以根据对图像中的对象已经从先前图像移动多少的估计来确定图像的多个局部窗口中的每一个的带宽。 该方法可以混合多个本地窗口的带宽以生成混合映射。 然后,该方法可以根据混合映射生成对象的可变带宽搜索区域。

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