公开(公告)号：WO2007009238A1

公开(公告)日：2007-01-25

申请号：PCT/CA2006/001178

申请日：2006-07-19

Applicant: MARCH NETWORKS CORPORATION ,  BAYNGER, Michael, Peter ,  STREATCH, Paul ,  MACLEAN, Roger, F.

Inventor： BAYNGER, Michael, Peter ,  STREATCH, Paul ,  MACLEAN, Roger, F.

IPC: H04N5/91 ,  H04N7/16 ,  H04N5/78

CPC classification number: G11B27/34 ,  G11B27/034 ,  G11B27/10 ,  G11B27/105 ,  H04N7/181

Abstract: A method and apparatus forming a user interface for examining and retrieving audio/video/data content from digital video recorders. This includes an improved time period selection mechanism, a rich array of temporal data presentations, such as timelines, lists, and thumbnail images, and a unified method of displaying content from either a direct stream or downloaded files. Summary information is provided relating to undownloaded content based on a selected time period.

Abstract translation: 一种形成用于从数字视频记录器检查和检索音频/视频/数据内容的用户界面的方法和装置。 这包括改进的时间段选择机制，诸如时间表，列表和缩略图的时间数据呈现的丰富阵列，以及从直接流或下载文件显示内容的统一方法。 基于所选择的时间段提供关于未下载的内容的摘要信息。

公开(公告)号：WO2006105655A1

公开(公告)日：2006-10-12

申请号：PCT/CA2006/000517

申请日：2006-04-06

Applicant: MARCH NETWORKS CORPORATION ,  CAMPBELL, John, Roderick ,  DUSTIN, Wayne, Lawrence ,  MONTMINY, Christian, Joseph, Eric ,  BAYNGER, Michael, Peter ,  CAMPBELL, Alexander, Scott

Inventor： CAMPBELL, John, Roderick ,  DUSTIN, Wayne, Lawrence ,  MONTMINY, Christian, Joseph, Eric ,  BAYNGER, Michael, Peter ,  CAMPBELL, Alexander, Scott

IPC: G06T7/20 ,  H04N17/02 ,  H04N17/00 ,  H04N7/18

CPC classification number: H04N5/144 ,  G06K9/00778 ,  G06T7/215 ,  G06T7/254 ,  G07G3/003

Abstract: A method and system are provided for counting moving objects in a digital video stream. In contrast to known computationally-expensive methods, areas of motion are determined by threshold subtracting a current video frame from a short term average video scene. An object box surrounding an object is determined by threshold subtracting the current video frame from a long term average video scene. Coordinates of the moving object are identified by associating the area of motion with the object box, if it overlaps the area of motion, to define a moving object box. An event counter can be incremented when the moving object box is in a buffer zone in the current frame, and was in a detection zone in an earlier frame, and was initially detected in a buffer zone on the opposite side of the detection zone.

Abstract translation: 提供了一种用于对数字视频流中的移动物体进行计数的方法和系统。 与已知的计算昂贵的方法相比，通过从短期平均视频场景减去当前视频帧来确定运动区域。 通过从长期平均视频场景减去当前视频帧的阈值来确定对象周围的对象框。 移动物体的坐标通过将运动区域与对象盒相关联来识别，如果它与运动区域重叠，则定义移动物体盒。 当移动对象框位于当前帧中的缓冲区中时，事件计数器可以增加，并且处于较早帧中的检测区域中，并且最初在检测区域的相对侧的缓冲区中检测到。