3D dense captioning

3D Dense Captioning is an emerging vision-and-language task that involves object-level 3D scene understanding. Beyond the coarse semantic category prediction and bounding box regression found in traditional 3D object detection, 3D dense captioning aims to generate more detailed instance-level natural language descriptions for each object of interest in a scene, covering their visual appearance and spatial relationships, thereby enhancing the accuracy and richness of scene interpretation.