Patents Assigned to Vidient Systems, Inc.
  • Patent number: 7499571
    Abstract: A video surveillance system uses rule-based reasoning and multiple-hypothesis scoring to detect predefined behaviors based on movement through zone patterns. Trajectory hypothesis spawning allows for trajectory splitting and/or merging and includes local pruning to managed hypothesis growth. Hypotheses are scored based on a number of criteria, illustratively including at least one non-spatial parameter. Connection probabilities computed during the hypothesis spawning process are based on a number of criteria, illustratively including object size. Object detection and probability scoring is illustratively based on object class.
    Type: Grant
    Filed: September 22, 2006
    Date of Patent: March 3, 2009
    Assignee: Vidient Systems, Inc
    Inventors: Mei Han, Yihong Gong, Hai Tao
  • Patent number: 7148912
    Abstract: A video surveillance system uses rule-based reasoning and multiple-hypothesis scoring to detect predefined behaviors based on movement through zone patterns. Trajectory hypothesis spawning allows for trajectory splitting and/or merging and includes local pruning to managed hypothesis growth. Hypotheses are scored based on a number of criteria, illustratively including at least one non-spatial parameter. Connection probabilities computed during the hypothesis spawning process are based on a number of criteria, illustratively including object size. Object detection and probability scoring is illustratively based on object class.
    Type: Grant
    Filed: August 12, 2004
    Date of Patent: December 12, 2006
    Assignee: Vidient Systems, Inc.
    Inventors: Mei Han, Yihong Gong, Hai Tao
  • Patent number: 7136507
    Abstract: A video surveillance system uses rule-based reasoning and multiple-hypothesis scoring to detect predefined behaviors based on movement through zone patterns. Trajectory hypothesis spawning allows for trajectory splitting and/or merging and includes local pruning to managed hypothesis growth. Hypotheses are scored based on a number of criteria, illustratively including at least one non-spatial parameter. Connection probabilities computed during the hypothesis spawning process are based on a number of criteria, illustratively including object size. Object detection and probability scoring is illustratively based on object class.
    Type: Grant
    Filed: August 12, 2004
    Date of Patent: November 14, 2006
    Assignee: Vidient Systems, Inc.
    Inventors: Mei Han, Yihong Gong, Hai Tao
  • Patent number: 7127083
    Abstract: A video surveillance system uses rule-based reasoning and multiple-hypothesis scoring to detect predefined behaviors based on movement through zone patterns. Trajectory hypothesis spawning allows for trajectory splitting and/or merging and includes local pruning to managed hypothesis growth. Hypotheses are scored based on a number of criteria, illustratively including at least one non-spatial parameter. Connection probabilities computed during the hypothesis spawning process are based on a number of criteria, illustratively including object size. Object detection and probability scoring is illustratively based on object class.
    Type: Grant
    Filed: August 12, 2004
    Date of Patent: October 24, 2006
    Assignee: Vidient Systems, Inc.
    Inventors: Mei Han, Yihong Gong, Hai Tao
  • Patent number: 7088846
    Abstract: A video surveillance system uses rule-based reasoning and multiple-hypothesis scoring to detect predefined behaviors based on movement through zone patterns. Trajectory hypothesis spawning allows for trajectory splitting and/or merging and includes local pruning to managed hypothesis growth. Hypotheses are scored based on a number of criteria, illustratively including at least one non-spatial parameter. Connection probabilities computed during the hypothesis spawning process are based on a number of criteria, illustratively including object size. Object detection and probability scoring is illustratively based on object class.
    Type: Grant
    Filed: August 12, 2004
    Date of Patent: August 8, 2006
    Assignee: Vidient Systems, Inc.
    Inventors: Mei Han, Yihong Gong, Hai Tao