# Human Activity Recognition Using Visual Object Detection

## TL;DR

This paper explores using visual object detection with SSD and data fusion techniques to improve human activity recognition in underground mining environments, aiming for accurate monitoring of miner states.

## Contribution

It applies SSD trained on COCO for miner state detection and proposes data fusion methods to enhance activity recognition accuracy in mining settings.

## Key findings

- SSD effectively detects miner states in complex environments
- Data fusion improves activity recognition accuracy
- The approach balances performance and development speed

## Abstract

Visual Human Activity Recognition (HAR) and data fusion with other sensors can help us at tracking the behavior and activity of underground miners with little obstruction. Existing models, such as Single Shot Detector (SSD), trained on the Common Objects in Context (COCO) dataset is used in this paper to detect the current state of a miner, such as an injured miner vs a non-injured miner. Tensorflow is used for the abstraction layer of implementing machine learning algorithms, and although it uses Python to deal with nodes and tensors, the actual algorithms run on C++ libraries, providing a good balance between performance and speed of development. The paper further discusses evaluation methods for determining the accuracy of the machine-learning and an approach to increase the accuracy of the detected activity/state of people in a mining environment, by means of data fusion.

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Source: https://tomesphere.com/paper/1905.03707