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

Aiming at the significant symptom of broilers respiratory disease like Dyspnea, an early detection of broilers respiratory disease based on YOLO v5 and short time tracking was proposed. After the specific optimization of YOLO v5 algorithm, such as the adaptive setting of anchors and the application of CIoU Loss (Complete IoU Loss), the broiler heads can be accurately identified in the complex environment and whether it was in the open-mouth state can be detected at the same time. According to the intersection over union with heads coordinated from different frames, different broiler heads can be tracked in short time, and the action sequences of different chicken heads can be obtained. Then the action sequences can be analyzed to judge the frequency of mouth-opening and mouth-closing combination to detect the Dyspnea dynamically. The experimental results showed that the mAP of the improved YOLO v5 for broiler heads was 80.1%, the accuracy of mouth-opening head was 67.3%, and the accuracy of mouth-closing head was 92.8%. The recognition accuracy of the Dyspnea detection method based on time series was 91.8%, the recall was 75%, and the precision was 67.9%. The method proposed can help to early detect the broilers respiratory diseases in the group breeding environment.