I think I'd rather just submit a video and have all the matches and their confidence / salience (not sure that these are the same thing).
We've found that most of the value is in the latter. For example, our system helps answer:
1) on a publisher video server, which videos were about automotive?
Can we package those ads off to car brands?
2) how many people took photos of my brand's product on instagram
after our marketing campaign?
3) what were pedestrian traffic patterns like outside
our store based on the CCTV system?My employer, SET Media [1], has built out our own ML / CV system that applies a taxonomy of a bit over 1000 tags to several million videos. We add new videos and re-compute existing results multiple times a day. It's been invaluable for us to be able to query for both a specific tag as well as to see all the tags (and their confidences) that are applied to a video.
[1] www.set.tv
Our full API accepts the major video formats.