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arXiv 2005.13131cs.CVcs.ROeess.IV
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基于关键点跟踪和空间感知的时间响应滤波的群体中猪的高效计数

Efficient Pig Counting in Crowds with Keypoints Tracking and Spatial-aware Temporal Response Filtering

JD Finance America Corporation(京东金融美国公司);University of Missouri(密苏里大学)

Guang Chen, Shiwen Shen, Longyin Wen, Si Luo, Liefeng Bo

摘要:

生猪计数是规模化养猪生产中的一项重要任务,通常由人工视觉完成。但是这个过程非常耗时并且容易出错。在文献中,很少有研究开发自动化猪计数方法。现有的方法仅针对单幅图像的猪只计数,其准确性受到猪只运动、遮挡和重叠等因素的影响。特别是单幅图像的视场非常有限,无法满足大型猪群舍对猪只计数的要求。为此,我们提出了一个实时自动猪计数系统,在人群中使用只有一个单目鱼眼相机与检查机器人。我们的系统表明,它产生的准确结果超过了人类。我们的管道始于一种新颖的自下而上的猪检测算法,以避免由于猪的重叠,遮挡和变形而导致的假阴性。设计了一种深度卷积神经网络(CNN)来检测猪身体部位的关键点,并将这些关键点关联起来以识别个体猪。在此之后,一个有效的在线跟踪方法被用来关联猪跨视频帧。最后,提出了一种新的空间感知的时间响应滤波(STRF)方法来预测猪的数量,这是有效的,以抑制由猪或摄像机运动或跟踪失败引起的误报。整个流水线已经部署在一个边缘计算设备上,并证明了其有效性。

英文摘要:

Pig counting is a crucial task for large-scale pig farming, which is usually completed by human visually. But this process is very time-consuming and error-prone. Few studies in literature developed automated pig counting method. Existing methods only focused on pig counting using single image, and its accuracy is challenged by several factors, including pig movements, occlusion and overlapping. Especially, the field of view of a single image is very limited, and could not meet the requirements of pig counting for large pig grouping houses. To that end, we presented a real-time automated pig counting system in crowds using only one monocular fisheye camera with an inspection robot. Our system showed that it produces accurate results surpassing human. Our pipeline began with a novel bottom-up pig detection algorithm to avoid false negatives due to overlapping, occlusion and deformation of pigs. A deep convolution neural network (CNN) is designed to detect keypoints of pig body part and associate the keypoints to identify individual pigs. After that, an efficient on-line tracking method is used to associate pigs across video frames. Finally, a novel spatial-aware temporal response filtering (STRF) method is proposed to predict the counts of pigs, which is effective to suppress false positives caused by pig or camera movements or tracking failures. The whole pipeline has been deployed in an edge computing device, and demonstrated the effectiveness.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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