Integrating Temporal and Spatial Attentions for VATEX Video Captioning Challenge 2019
This work addresses video captioning for AI applications, but it is incremental as it combines existing attention mechanisms.
The authors tackled video captioning by integrating temporal and spatial attentions to capture multi-level aspects, achieving a 73.4 CIDEr score and second place in the VATEX 2019 challenge.
This notebook paper presents our model in the VATEX video captioning challenge. In order to capture multi-level aspects in the video, we propose to integrate both temporal and spatial attentions for video captioning. The temporal attentive module focuses on global action movements while spatial attentive module enables to describe more fine-grained objects. Considering these two types of attentive modules are complementary, we thus fuse them via a late fusion strategy. The proposed model significantly outperforms baselines and achieves 73.4 CIDEr score on the testing set which ranks the second place at the VATEX video captioning challenge leaderboard 2019.