Seeing What You’re Told: Sentence-Guided Activity Recognition In Video.

TitleSeeing What You’re Told: Sentence-Guided Activity Recognition In Video.
Publication TypeCBMM Memos
Year of Publication2014
AuthorsSiddharth, N, Barbu, A, Siskind, JMark
Number006
Date Published05/2014
Abstract

We present a system that demonstrates how the compositional structure of events, in concert with the compositional structure of language, can interplay with the underlying focusing mechanisms in video action recognition, thereby providing a medium, not only for top-down and bottom-up integration, but also for multi-modal integration between vision and language. We show how the roles played by participants (nouns), their characteristics (adjectives), the actions performed (verbs), the manner of such actions (adverbs), and changing spatial relations between participants (prepositions) in the form of whole sentential descriptions mediated by a grammar, guides the activity-recognition process. Further, the utility and expressiveness of our framework is demonstrated by performing three separate tasks in the domain of multi-activity videos: sentence-guided focus of attention, generation of sentential descriptions of video, and query-based video search, simply by leveraging the framework in different manners.

arXiv

arXiv:1308.4189v2

DSpace@MIT

http://hdl.handle.net/1721.1/100169

Download:  PDF icon CBMM-Memo-006.pdf CBMM Memo No:  006

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