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Lichen Zhao

4 accepted papers

2023

VL-SAT: Visual-Linguistic Semantics Assisted Training for 3D Semantic Scene Graph Prediction in Point Cloud

CVPR 2023highlight

The task of 3D semantic scene graph (3DSSG) prediction in the point cloud is challenging since (1) the 3D point cloud only captures geometric structures with limited semantics compared to 2D images, and (2) long-tailed relation distribution inherently hinders the learning of unbiased prediction. Sin…

2022

3DJCG: A Unified Framework for Joint Dense Captioning and Visual Grounding on 3D Point Clouds

CVPR 2022oral

Observing that the 3D captioning task and the 3D grounding task contain both shared and complementary information in nature, in this work, we propose a unified framework to jointly solve these two distinct but closely related tasks in a synergistic fashion, which consists of both shared task-agnosti…

Cited by 120PDFScholar
2022

Supervision Exists Everywhere: A Data Efficient Contrastive Language-Image Pre-training Paradigm

ICLR 2022poster

Recently, large-scale Contrastive Language-Image Pre-training (CLIP) has attracted unprecedented attention for its impressive zero-shot recognition ability and excellent transferability to downstream tasks. However, CLIP is quite data-hungry and requires 400M image-text pairs for pre-training, there…