  Marine plastic pollution is an emerging environmental problem since it
pollutes the ocean, air and food whilst endangering the ocean wildlife via the
ingestion and entanglements. During the last decade, an enormous effort has
been spent on finding possible solutions to marine plastic pollution. Remote
sensing imagery sits in a crucial place for these efforts since it provides
informative earth observation products, and the current technology offers
further essential development. Despite the advances in the last decade, there
is still a way to go for marine plastic monitoring research where challenges
are rarely highlighted. This paper contributes to the literature with a
critical review and aims to highlight literature milestones in marine debris
and suspected plastics (MD&SP) monitoring by promoting the computational
imaging methodology behind these approaches along with detailed discussions on
challenges and potential future research directions.
