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    • 7. 发明公开
    • METHOD AND APPARATUS FOR SWITCHING REGION OF INTEREST
    • 用于切换感兴趣区域的方法和设备
    • EP3190784A1
    • 2017-07-12
    • EP15896601.0
    • 2015-11-19
    • Streamax Technology Co., Ltd.
    • DENG, BaohuaLIU, Wentao
    • H04N5/235
    • G06K9/4661G06K9/00791G06K9/2054G06K9/3233G06K9/4642G06T7/11H04N5/2351H04N5/2353H04N5/3454H04N5/3535H04N5/35554
    • The present invention is suitable for the technical field of vehicle monitoring, and provides a method and an apparatus for switching a region of interest, the method comprising: obtaining a frame of an image before exposure; outputting a luminance value of each partition of the image, accumulation number of pixels lower than a first set threshold, accumulation number of pixels higher than a second set threshold, to generate an evaluation data; generating eigenvalues of a plurality of illuminance evaluation areas based on the evaluation data and the preset illuminance evaluation area distribution table; estimating the illuminance of an environment of a vehicle according to the eigenvalues of the plurality of illuminance evaluation areas and differentiation characteristics between normal illuminance and low illuminance; switching the region of interest of a current exposing image based on the estimating results, generating a weight table based on the content of the current exposing image and the switched region of interest, controlling the exposing of the region of interest based on the weight table. The present invention makes image partitions which is concerned by the monitoring required areas and the intelligent algorithm are highlighted in details, so that to facilitate recognition and abnormality estimation, which makes the details clear while avoid overexposing the region of interest.
    • 本发明适用于车辆监控技术领域,提供了一种切换感兴趣区域的方法和装置,所述方法包括:获取曝光前图像的帧; 输出图像的每个分区的亮度值,低于第一设置阈值的像素的累积数量,高于第二设置阈值的像素的累积数量,以生成评估数据; 基于评估数据和预设照度评估区域分布表生成多个照度评估区域的特征值; 根据所述多个照度评估区域的特征值以及正常照度和低照度之间的区分特征来估计车辆的环境照度; 基于估计结果切换当前曝光图像的感兴趣区域,基于当前曝光图像的内容和切换的感兴趣区域生成加权表格,基于加权表格来控制感兴趣区域的曝光。 本发明使得与监控所需区域有关的图像分区和智能算法得到了详细的强调,以便于识别和异常估计,这使得细节清晰,同时避免过度曝光感兴趣区域。