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Learning discriminative 3D representations that generalize well to unknown testing categories is an emerging requirement for many real-world 3D applications. Existing well-established methods often struggle to attain this goal due to…

计算机视觉与模式识别 · 计算机科学 2025-05-06 Zhichuan Wang , Yang Zhou , Jinhai Xiang , Yulong Wang , Xinwei He

We propose a lightweight and scalable Regional Point-Language Contrastive learning framework, namely \textbf{RegionPLC}, for open-world 3D scene understanding, aiming to identify and recognize open-set objects and categories. Specifically,…

计算机视觉与模式识别 · 计算机科学 2024-05-07 Jihan Yang , Runyu Ding , Weipeng Deng , Zhe Wang , Xiaojuan Qi

Efficiently capturing the complex spatiotemporal representations from large-scale unlabeled traffic data remains to be a challenging task. In considering of the dilemma, this work employs the advanced contrastive learning and proposes a…

机器学习 · 计算机科学 2023-12-19 Lincan Li , Kaixiang Yang , Fengji Luo , Jichao Bi

Image-to-text tasks, such as open-ended image captioning and controllable image description, have received extensive attention for decades. Here, we further advance this line of work by presenting Visual Spatial Description (VSD), a new…

计算机视觉与模式识别 · 计算机科学 2022-10-27 Yu Zhao , Jianguo Wei , Zhichao Lin , Yueheng Sun , Meishan Zhang , Min Zhang

Weakly supervised monocular 3D detection, while less annotation-intensive, often struggles to capture the global context required for reliable 3D reasoning. Conventional label-efficient methods focus on object-centric features, neglecting…

计算机视觉与模式识别 · 计算机科学 2025-08-05 Chupeng Liu , Runkai Zhao , Weidong Cai

The spatial reasoning task aims to reason about the spatial relationships in 2D and 3D space, which is a fundamental capability for Visual Question Answering (VQA) and robotics. Although vision language models (VLMs) have developed rapidly…

计算机视觉与模式识别 · 计算机科学 2025-07-29 Xun Liang , Xin Guo , Zhongming Jin , Weihang Pan , Penghui Shang , Deng Cai , Binbin Lin , Jieping Ye

The requirement for expert annotations limits the effectiveness of deep learning for medical image analysis. Although 3D self-supervised methods like volume contrast learning (VoCo) are powerful and partially address the labeling scarcity…

计算机视觉与模式识别 · 计算机科学 2026-01-22 Po-Kai Chiu , Hung-Hsuan Chen

Benefiting from large-scale vision-language pre-training on image-text pairs, open-world detection methods have shown superior generalization ability under the zero-shot or few-shot detection settings. However, a pre-defined category space…

计算机视觉与模式识别 · 计算机科学 2023-03-16 Yanxin Long , Youpeng Wen , Jianhua Han , Hang Xu , Pengzhen Ren , Wei Zhang , Shen Zhao , Xiaodan Liang

We explore an efficient approach to establish a foundational video-text model. We present VideoCoCa that maximally reuses a pretrained image-text contrastive captioner (CoCa) model and adapt it to video-text tasks with minimal extra…

计算机视觉与模式识别 · 计算机科学 2023-03-17 Shen Yan , Tao Zhu , Zirui Wang , Yuan Cao , Mi Zhang , Soham Ghosh , Yonghui Wu , Jiahui Yu

Contrastive learning has delivered impressive results for various tasks in the self-supervised regime. However, existing approaches optimize for learning representations specific to downstream scenarios, i.e., \textit{global}…

机器学习 · 计算机科学 2021-10-29 Shuang Ma , Zhaoyang Zeng , Daniel McDuff , Yale Song

3D dense captioning, as an emerging vision-language task, aims to identify and locate each object from a set of point clouds and generate a distinctive natural language sentence for describing each located object. However, the existing…

计算机视觉与模式识别 · 计算机科学 2022-10-11 Yufeng Zhong , Long Xu , Jiebo Luo , Lin Ma

Novel object captioning (NOC) aims to describe images containing objects without observing their ground truth captions during training. Due to the absence of caption annotation, captioning models cannot be directly optimized via…

计算机视觉与模式识别 · 计算机科学 2022-09-27 Cheng-Fu Yang , Yao-Hung Hubert Tsai , Wan-Cyuan Fan , Ruslan Salakhutdinov , Louis-Philippe Morency , Yu-Chiang Frank Wang

Vision and language understanding has emerged as a subject undergoing intense study in Artificial Intelligence. Among many tasks in this line of research, visual question answering (VQA) has been one of the most successful ones, where the…

计算机视觉与模式识别 · 计算机科学 2017-12-05 Yunseok Jang , Yale Song , Youngjae Yu , Youngjin Kim , Gunhee Kim

The existing image captioning approaches typically train a one-stage sentence decoder, which is difficult to generate rich fine-grained descriptions. On the other hand, multi-stage image caption model is hard to train due to the vanishing…

计算机视觉与模式识别 · 计算机科学 2018-03-15 Jiuxiang Gu , Jianfei Cai , Gang Wang , Tsuhan Chen

The cross-modal 3D retrieval task aims to achieve mutual matching between text descriptions and 3D shapes. This has the potential to enhance the interaction between natural language and the 3D environment, especially within the realms of…

计算机视觉与模式识别 · 计算机科学 2025-02-27 Junlong Ren , Hao Wu , Hui Xiong , Hao Wang

Current Large Language Models have achieved Olympiad-level logic, yet Vision-Language Models paradoxically falter on elementary spatial tasks like block counting. This capability mismatch reveals a critical ``spatial intelligence gap,''…

计算机视觉与模式识别 · 计算机科学 2026-03-10 Shaoxiong Zhan , Yanlin Lai , Zheng Liu , Hai Lin , Shen Li , Xiaodong Cai , Zijian Lin , Wen Huang , Hai-Tao Zheng

The objective of image captioning models is to bridge the gap between the visual and linguistic modalities by generating natural language descriptions that accurately reflect the content of input images. In recent years, researchers have…

计算机视觉与模式识别 · 计算机科学 2024-05-24 Sara Sarto , Marcella Cornia , Lorenzo Baraldi , Alessandro Nicolosi , Rita Cucchiara

Image captioning as a multimodal task has drawn much interest in recent years. However, evaluation for this task remains a challenging problem. Existing evaluation metrics focus on surface similarity between a candidate caption and a set of…

计算与语言 · 计算机科学 2019-12-20 Huiyuan Xie , Tom Sherborne , Alexander Kuhnle , Ann Copestake

Automatically generating a human-like description for a given image is a potential research in artificial intelligence, which has attracted a great of attention recently. Most of the existing attention methods explore the mapping…

计算机视觉与模式识别 · 计算机科学 2020-11-03 Feicheng Huang , Zhixin Li , Haiyang Wei , Canlong Zhang , Huifang Ma

Recent advances in imitation learning have shown significant promise for robotic control and embodied intelligence. However, achieving robust generalization across diverse mounted camera observations remains a critical challenge. In this…

计算机视觉与模式识别 · 计算机科学 2024-11-27 Travis Davies , Jiahuan Yan , Xiang Chen , Yu Tian , Yueting Zhuang , Yiqi Huang , Luhui Hu