Install two python packages: pytorch with CUDA support and deepforest: cd. How to use the script for automatic detection of objectsġ.
CPU is also supported, but the CPU-based implementation is very slow compared to GPU implementation. You need NVIDIA GPU for fast processing (i.e.
You can find information about how to download a script from Agisoft GitHub page in our article: How to download script from GitHub? To enable the neural network you need to download and install a python script for Metashape Professionaledition that is published in the repository detect_objects.py based on /weecology/DeepForest. It is also suggested that you annotate a small region of the orthomosaic to guide the neural network and optimize its performance for each particular task. Even though the network had been trained for tree detection tasks, it can be adjusted for detection of other objects ( for example cars, sea lions, etc.) by the use of partially manual annotations introducing new object types. The workflow includes the use of a pre-trained neural network that allows for object detection automation.
This article describes the suggested workflow for automatic objects detection on orthomosaic. Modified on: Mon, 3 Oct, 2022 at 11:56 AM Python scripting Automatic detection of objects on orthomosaic
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