What high-level problem are you trying to solve?
It can sometimes be difficult to identify an object of interest (such as a tree or elements of a building) in the field using only a GPS coordinate or a text description. Currently, entity properties only allow for text strings. It would be useful to be able to add photos to help identify objects of interest more easily, particularly during monitoring activities.
Any ideas on how ODK could help you solve it?
I saw on the ODK roadmap that an existing idea is quiet similar, called "Collect: Support media attachments to Entities". However, the status is currently "later". I would be useful for different studies to put this idea into practice
Upload any helpful links, sketches, and videos.