I wanted to identify moving objects in video (or still) images - preferably using R as that's my tool of choice. I thought this might be challenging, but it proved to be relatively easy.
The basic steps are:
- Import the images from the video, discard the 'empty' ones and save the interesting ones. [R, with ImageMagick]
- Run the interesting images through a neural net to locate and identify objects. Save the locations for some later stage of the project. [R, yolo]
- Stitch the results back together. [R, ImageMagick]
There's an example here, applied to video from a 'camera trap' in the garden.
The rest of the blog gives the full details on how this is done.
