论文标题
在受试者身体部分遮挡下，使用CCTV摄像机的老年人跌落检测
Elderly Fall Detection Using CCTV Cameras under Partial Occlusion of the Subjects Body
论文作者
论文摘要
老年人在日常生活中面临的可能危险之一就是下降。闭塞是基于视觉的秋季检测系统的最大挑战之一，并大大降低了其检测性能。为了解决这个问题，我们合成了专门设计的遮挡视频，用于使用现有数据集训练秋季检测系统。然后，通过定义新的成本函数，我们使用遮挡和未封闭式视频引入了一个对秋季检测模型进行加权训练的框架，该视频可以应用于任何可学习的秋季检测系统。最后，我们使用非深度和深层模型来评估所提出的加权训练方法的效果。实验表明，在遮挡条件下，提出的方法可以将分类精度提高36％，而对于深层模型，则可以将分类精度提高36％。此外，结果表明，所提出的训练框架还可以显着提高正常未封闭样品的深网的检测性能。
One of the possible dangers that older people face in their daily lives is falling. Occlusion is one of the biggest challenges of vision-based fall detection systems and degrades their detection performance considerably. To tackle this problem, we synthesize specifically-designed occluded videos for training fall detection systems using existing datasets. Then, by defining a new cost function, we introduce a framework for weighted training of fall detection models using occluded and un-occluded videos, which can be applied to any learnable fall detection system. Finally, we use both a non-deep and deep model to evaluate the effect of the proposed weighted training method. Experiments show that the proposed method can improve the classification accuracy by 36% for a non-deep model and 55% for a deep model in occlusion conditions. Moreover, it is shown that the proposed training framework can also significantly improve the detection performance of a deep network on normal un-occluded samples.
