CAJ | 학술논문

针对摄像方式的雨滴谱测量方法中存在人工参与多的缺点，提出了一种基于计算机视觉的雨滴谱测量方法。该方法分为雨滴目标自动识别及雨滴谱计算两个步骤。采用各项异性扩散滤波的方式对雨滴图像进行降噪，结合图像分割与形态学等操作达到识别个体雨滴目标的目的。基于识别结果以及雨滴平面—立体转换方程，进一步计算得到实时雨滴谱。实验证明，该方法对雨滴群中单独个体的检测较为准确，并能够测量具有较广谱宽的雨滴谱分布。
침대섭상방식적우적보측량방법중존재인공삼여다적결점，제출료일충기우계산궤시각적우적보측량방법。해방법분위우적목표자동식별급우적보계산량개보취。채용각항이성확산려파적방식대우적도상진행강조，결합도상분할여형태학등조작체도식별개체우적목표적목적。기우식별결과이급우적평면—입체전환방정，진일보계산득도실시우적보。실험증명，해방법대우적군중단독개체적검측교위준학，병능구측량구유교엄보관적우적보분포。
As the photograph-based raindrop size measurement suffers from various manual interactions,this paper proposed a new method for measuring raindrop size distribution based on computer vision.This approach included two steps:firstly,it ap-plied the anisotropic filtering to reduce the image noise and recognized raindrops automatically by incorporating the techniques such as segmentation and morphologic operations.Based on the recognition results and the calibrated 2D-3D transfer equation, this method computed raindrop size distribution directly from all raindrops.Experimental results demonstrate that the proposed method achieves a good performance on detecting raindrops and is capable of measuring raindrop size distribution with wide bandwidth.