公开(公告)号：US09600897B2

公开(公告)日：2017-03-21

申请号：US14525262

申请日：2014-10-28

Applicant: NEC Laboratories America, Inc.

Inventor： Manmohan Chandraker ,  Du Tran

IPC: G06T7/20 ,  H04N5/14

CPC classification number: G06T7/269 ,  G06T7/215 ,  G06T2207/10016 ,  G06T2207/10024 ,  G06T2207/20016 ,  G06T2207/20076 ,  G06T2207/20081 ,  G06T2207/30241 ,  H04N5/145 ,  H04N5/147

Abstract: A method to perform hiearchical video segmentation includes: defining voxels over a spatio-temporal video; grouping into segments contiguous voxels that display similar characteristics including similar appearance or motion; determining a trajectory-based feature that complements color and optical flow cues, wherein trajectory cues are probabilistically meaningful histograms combinable for use in a graph-based framework; and applying a max-margin module for cue combination that learns a supervised distance metric for region dissimilarity that combines color, flow and trajectory features.

公开(公告)号：US20150116597A1

公开(公告)日：2015-04-30

申请号：US14525262

申请日：2014-10-28

Applicant: NEC Laboratories America, Inc.

Inventor： Manmohan Chandraker ,  Du Tran

IPC: G06T7/20 ,  H04N5/14

CPC classification number: G06T7/269 ,  G06T7/215 ,  G06T2207/10016 ,  G06T2207/10024 ,  G06T2207/20016 ,  G06T2207/20076 ,  G06T2207/20081 ,  G06T2207/30241 ,  H04N5/145 ,  H04N5/147

Abstract: A method to perform hiearchical video segmentation includes: defining voxels over a spatio-temporal video; grouping into segments contiguous voxels that display similar characteristics including similar appearance or motion; determining a trajectory-based feature that complements color and optical flow cues, wherein trajectory cues are probabilistically meaningful histograms combinable for use in a graph-based framework; and applying a max-margin module for cue combination that learns a supervised distance metric for region dissimilarity that combines color, flow and trajectory features.

Abstract translation: 执行搜索视频分割的方法包括：在时空视频上定义体素; 分组显示类似特征（包括类似的外观或运动）的连续体素; 确定补充颜色和光流线索的基于轨迹的特征，其中轨迹提示是可组合地用于基于图的框架中的概率有意义的直方图; 并应用用于提示组合的最大边距模块，该模块组合学习区域不相似的监督距离度量，其组合颜色，流和轨迹特征。