基于计算机视觉的母猪运动规律分析

Analysis of sow motion law based on computer vision

母猪作为猪场的主要生产力,担负繁育仔猪的职责,其行为及健康受到养殖户和行业专家的重视。文章基于机器视觉技术,分析猪场的监控视频,通过对猪轮廓数据的计算,辅以速度、加速度、位移以及其正负变化趋势等运动的行为参数,用于判定发情母猪是否处于活跃状态。针对俯视视频进行运动目标检测以及图像预处理,再对前景目标进行椭圆拟合,得到运动中心坐标,从而提取位移等运动参量,以建立运动模型。通过分析发情母猪的运动特征,运用差分算法分析数据差异性,得到母猪发情期运动规律,可作为健康状况分析和发情状态监测的重要数据支撑。

As the main productivity of pig farm,sows bear the function of breeding piglets,and their behavior and health are paid attention to by farmers and industry experts.Based on machine vision technology,this paper analyzes the surveillance video of pig farm,and uses the calculation of pig contour data,supplemented by the behavior parameters of velocity,acceleration,displacement and positive and negative change trend,to determine whether estrous sows are active or not.The moving target detection and image preprocessing are carried out for the overlooking video,and then the elliptical fitting of the foreground target is carried out to obtain the moving center coordinate,so as to extract the motion parameters such as displacement and so on,so as to establish the motion model.By analyzing the movement characteristics of estrous sows.Using the difference algorithm to analyze the difference of data,the law of estrus movement of sows can be used as an important data support for health analysis and estrus monitoring.