Recreational activities Animals 1 Compliance control 1 Computer vision 1 Counting 1 Critical environment 1 Deep learning 1 Embedded system 1 Embedded systems 1 Embedded-system 1 Homographies 1 Homography 1 Human Activity Monitoring 1 Machine learning 1 National parks 1 Number of peoples 1 Personal protective equipment 1 Protective clothing 1 Recreation ecology 1 Recreation resource impacts 1 Routing system 1 Sampling points 1 Sampling technique 1 Soils 1 Survey techniques 1 Surveys 1 Sustainable development 1 Toolsets 1 Vegetation 1 Vegetation density 1