CAJ | 학술논문

针对依靠单一色彩空间的视频检测森林防火算法中存在低准确率的问题以及视频检测森林防火算法中存在的高耗时问题，提出海计算模式下基于YCrCb色彩空间和火焰频率的视频森林火焰识别算法。在森林中部署的无线传感网的传感器端节点捕获视频图像；把图像的RGB色彩空间转换为YCrCb色彩空间，提取火焰疑似区域；通过计算视频中相邻两帧相关性系数，进行离散傅里叶变换得到火焰疑似区域的相关性系数频率，以此判断视频中是否存在火焰。该算法可以在传感器端节点实现火焰的判断。实验结果表明，该算法在准确率略微下降的情况下，大幅降低了能耗。
침대의고단일색채공간적시빈검측삼림방화산법중존재저준학솔적문제이급시빈검측삼림방화산법중존재적고모시문제，제출해계산모식하기우YCrCb색채공간화화염빈솔적시빈삼림화염식별산법。재삼림중부서적무선전감망적전감기단절점포획시빈도상；파도상적RGB색채공간전환위YCrCb색채공간，제취화염의사구역；통과계산시빈중상린량정상관성계수，진행리산부리협변환득도화염의사구역적상관성계수빈솔，이차판단시빈중시부존재화염。해산법가이재전감기단절점실현화염적판단。실험결과표명，해산법재준학솔략미하강적정황하，대폭강저료능모。
A video forest fire recognition algorithm using color feature and frequency was proposed .Sensor nodes capture the video first .Then ,the video was analyzed ,the color space RGB was transformed to the YCrCb ,the suspected flame area was ex‐tracted ,the relative coefficient between two frames in the video was calculated ,the time‐domain plot of the relative coefficient was reached ,and the time‐domain plot was transformed to the frequency‐domain plot using discrete Fourier transform (DFT ) . The flame frequency was obtained through steps above .Experimental results show that the flame is judged by the frequency in this algorithm ,which achieves steady accuracy and low time calculation .