Photovoice
A widely-used method that gives cameras to participants to tell their own stories.
In academia, this method is based on:
Wang, C., & Burris, M. A. (1997). Photovoice: Concept, Methodology, and Use for Participatory Needs Assessment. Health Education & Behavior, 24(3).
However, it has its origins in photojournalism, in Jim Hubbard’s project Shooting Back.
Examples:
Participatory video examples from Insight Share