发明授权
US09571398B2 Method for extracting features from a flow of digital video frames, and corresponding system and computer program product
有权
从数字视频帧流中提取特征的方法，以及相应的系统和计算机程序产品
- 专利标题： Method for extracting features from a flow of digital video frames, and corresponding system and computer program product
- 专利标题（中）： 从数字视频帧流中提取特征的方法，以及相应的系统和计算机程序产品
-
申请号： US14080080申请日： 2013-11-14
-
公开(公告)号： US09571398B2公开(公告)日： 2017-02-14
- 发明人: Danilo Pietro Pau
- 申请人： STMicroelectronics S.R.L.
- 申请人地址： IT Agrate Brianza
- 专利权人： STMICROELECTRONICS S.R.L.
- 当前专利权人： STMICROELECTRONICS S.R.L.
- 当前专利权人地址： IT Agrate Brianza
- 代理机构： Seed IP Law Group LLP
- 优先权： ITTO2012A0986 20121114
- 主分类号： H04L12/801
- IPC分类号： H04L12/801 ; H04N19/115 ; H04N19/164 ; H04N19/17 ; G06K9/46 ; G06F17/30
摘要：
In an embodiment, digital video frames in a flow are subjected to a method of extraction of features including the operations of: extracting from the video frames respective sequences of pairs of keypoints/descriptors limiting to a threshold value the number of pairs extracted for each frame; sending the sequences extracted from an extractor module to a server for processing with a bitrate value variable in time; receiving the aforesaid bitrate value variable in time at the extractor as target bitrate for extraction; and limiting the number of pairs extracted by the extractor to a threshold value variable in time as a function of the target bitrate.
公开/授权文献
信息查询
