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    • 1. 发明授权
    • Method for managing digital slow shutter mode in monitor camera
    • 在监控摄像机中管理数字慢快门模式的方法
    • US07580067B2
    • 2009-08-25
    • US10921804
    • 2004-08-20
    • Man Sung KimShin Kyu Park
    • Man Sung KimShin Kyu Park
    • H04N5/238H04N5/262H04N5/235H04N5/335
    • H04N5/2355H04N5/2352H04N5/243
    • Disclosed is a method for managing a DSS (Digital Slow Shutter) mode in a monitoring camera. When an iris of the monitoring camera is maximally opened and a shutter speed is minimum, the DSS mode is set. In the DSS mode, a video frame inputted in a predetermined cycle is stored in a memory. A plurality of video frames stored in the memory are synthesized into a monitoring video frame. The monitoring video frame is outputted irrespective of a luminance thereof. When the memory is full of the video frames, an oldest stored video frame is replaced with a newly inputted video frame. The monitoring video frame can be consecutively outputted in a predetermined cycle even though the monitoring camera operates in the DSS mode. The monitoring video frame based on a bright luminance level can be outputted, such that a monitoring function is enhanced.
    • 公开了一种在监控摄像机中管理DSS(数字慢速快门)模式的方法。 当监控摄像机的光圈最大程度地打开并且快门速度最小时,DSS模式被设置。 在DSS模式中,将以预定周期输入的视频帧存储在存储器中。 存储在存储器中的多个视频帧被合成为监视视频帧。 输出监视视频帧,而不管其亮度如何。 当存储器充满视频帧时,最新存储的视频帧被新输入的视频帧替换。 即使监视摄像机以DSS模式工作,也可以以预定的周期连续地输出监视视频帧。 可以输出基于亮度等级的监视视频帧,从而提高监视功能。