发明名称 DIGITAL VIDEO RECORDING
摘要 <p>A digital video recording system (10) includes a video camera (12) directed at a scene of interest to continuously view the scene and generate video images (F) of the scene. An image processor (14) is configured to compare the video image (F) with a previously established reference image (Fr) of the scene to determine if changes have occurred. The image processor includes a memory (20) in which portions of video images (F) are stored, together with the time and date information as to when the image was acquired. A video playback capability (30) allows the memory to be accessed to retrieve the portions of the video images for image reconstruction. The playback system enables the memory to be accessed at any desired date and time location so an image of interest can be reconstructed without having to scan stored video images in a date/time sequence. Accessing the memory is done without interrupting the image processor's processing of currently acquired video images.</p>
申请公布号 EP1396149(B1) 申请公布日期 2014.07.23
申请号 EP20020726614 申请日期 2002.03.12
申请人 TYCO FIRE & SECURITY GMBH 发明人 HOBSON, GREGORY, L.;MOORE, JERRY;WOOTTON, JOHN, R.;MYERS, JAMES, C.;ORTH, JEFFREY
分类号 H04N7/18;H04N5/77;H04N5/775;H04N5/781;H04N5/92 主分类号 H04N7/18
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