ass日本风韵熟妇pics男人扒开女人屁屁桶到爽|扒开胸露出奶头亲吻视频|邻居少妇的诱惑|人人妻在线播放|日日摸夜夜摸狠狠摸婷婷|制服 丝袜 人妻|激情熟妇中文字幕|看黄色欧美特一级|日本av人妻系列|高潮对白av,丰满岳妇乱熟妇之荡,日本丰满熟妇乱又伦,日韩欧美一区二区三区在线

In order to realize the recognition and localization of the mini-watermelon with stereoscopic cultivation in greenhouse, a machine vision method for acquiring harvesting information of watermelon based on the near-infrared spectral image was presented. By comparing the spectral reflectance of fruit, leaf and stem, a wavelength of about 850nm was chosen as the best wavelength, of which the images taken at different illumination conditions were tested for fruit recognition. At first, the Otsu threshold algorithm was adopted to eliminate most background information. Then, a template liked circle was used to detect fruit region and reduce the noises. Thirdly, according to the morphological feature, the centroid of fruit was considered as the optimum point for picking and the cutting point was judged by “block-location method”. 50 images including fruits and 20 images without fruits were tested by the recognition algorithm, which can satisfactorily detect fruit with a recognition rate of 86% and 95%, respectively, and the accuracy rate of locating algorithm for picking point and cutting point detection was 93.0% and 88.4%, respectively, which met the demand of robotic vision system.