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VideoPrism: A Foundational Visual Encoder for Video Understanding
Feb. 21, 2024, 5:46 a.m. | Long Zhao, Nitesh B. Gundavarapu, Liangzhe Yuan, Hao Zhou, Shen Yan, Jennifer J. Sun, Luke Friedman, Rui Qian, Tobias Weyand, Yue Zhao, Rachel Hornung
cs.CV updates on arXiv.org arxiv.org
Abstract: We introduce VideoPrism, a general-purpose video encoder that tackles diverse video understanding tasks with a single frozen model. We pretrain VideoPrism on a heterogeneous corpus containing 36M high-quality video-caption pairs and 582M video clips with noisy parallel text (e.g., ASR transcripts). The pretraining approach improves upon masked autoencoding by global-local distillation of semantic video embeddings and a token shuffling scheme, enabling VideoPrism to focus primarily on the video modality while leveraging the invaluable text associated …
abstract arxiv asr cs.ai cs.cv diverse encoder general pretraining quality tasks text transcripts type understanding video video understanding visual
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