There has been significant attention to the research on dense video captioning, which aims to automatically localize and caption all events within untrimmed video. Several studies introduce methods by designing dense video captioning as a multitasking problem of event localization and event captioning to consider inter-task relations. However, addressing both tasks using only visual input is challenging due to the lack of semantic content. In this study, we address this by proposing a novel framework inspired by the cognitive information processing of humans. Our model utilizes external memory to incorporate prior knowledge. The memory retrieval method is proposed with cross-modal video-to-text matching. To effectively incorporate retrieved text features, the versatile encoder and the decoder with visual and textual cross-attention modules are designed. Comparative experiments have been conducted to show the effectiveness of the proposed method on ActivityNet Captions and YouCook2 datasets. Experimental results show promising performance of our model without extensive pretraining from a large video dataset.

通过使用外部记忆库和跨模态视频-文本匹配方法，我们提出了一种新的框架来解决密集视频字幕的挑战，实现了事件定位和事件字幕任务的自动化。实验结果表明，在ActivityNet Captions和YouCook2数据集上，我们的模型表现出良好的性能，无需来自大型视频数据集的大量预训练。

密集视频字幕生成与跨模态记忆检索