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Image enhancement is a significant research area in the fields of computer vision and image processing. In recent years, many learning-based methods for image enhancement have been developed, where the Look-up-table (LUT) has proven to be…

计算机视觉与模式识别 · 计算机科学 2023-11-23 Weiwen Chen , Qiuhong Ke , Zinuo Li

Recent open-world representation learning approaches have leveraged CLIP to enable zero-shot 3D object recognition. However, performance on real point clouds with occlusions still falls short due to unrealistic pretraining settings.…

计算机视觉与模式识别 · 计算机科学 2025-03-25 Khanh Nguyen , Ghulam Mubashar Hassan , Ajmal Mian

3D perception in LiDAR point clouds is crucial for a self-driving vehicle to properly act in 3D environment. However, manually labeling point clouds is hard and costly. There has been a growing interest in self-supervised pre-training of 3D…

计算机视觉与模式识别 · 计算机科学 2024-09-12 Mu Cai , Chenxu Luo , Yong Jae Lee , Xiaodong Yang

Beyond the success of Contrastive Language-Image Pre-training (CLIP), recent trends mark a shift toward exploring the applicability of lightweight vision-language models for resource-constrained scenarios. These models often deliver…

计算机视觉与模式识别 · 计算机科学 2025-03-24 Chu Myaet Thwal , Ye Lin Tun , Minh N. H. Nguyen , Eui-Nam Huh , Choong Seon Hong

The pre-trained image-text models, like CLIP, have demonstrated the strong power of vision-language representation learned from a large scale of web-collected image-text data. In light of the well-learned visual features, some existing…

计算机视觉与模式识别 · 计算机科学 2023-03-03 Hongwei Xue , Yuchong Sun , Bei Liu , Jianlong Fu , Ruihua Song , Houqiang Li , Jiebo Luo

Vision-language (V+L) pretraining models have achieved great success in supporting multimedia applications by understanding the alignments between images and text. While existing vision-language pretraining models primarily focus on…

计算机视觉与模式识别 · 计算机科学 2022-05-02 Manling Li , Ruochen Xu , Shuohang Wang , Luowei Zhou , Xudong Lin , Chenguang Zhu , Michael Zeng , Heng Ji , Shih-Fu Chang

Treating texts as images, combining prompts with textual labels for prompt tuning, and leveraging the alignment properties of CLIP have been successfully applied in zero-shot multi-label image recognition. Nonetheless, relying solely on…

计算机视觉与模式识别 · 计算机科学 2024-07-09 Haonan Xu , Dian Chao , Xiangyu Wu , Zhonghua Wan , Yang Yang

We present CLIP2Video network to transfer the image-language pre-training model to video-text retrieval in an end-to-end manner. Leading approaches in the domain of video-and-language learning try to distill the spatio-temporal video…

计算机视觉与模式识别 · 计算机科学 2021-06-22 Han Fang , Pengfei Xiong , Luhui Xu , Yu Chen

Arguably one of the top success stories of deep learning is transfer learning. The finding that pre-training a network on a rich source set (eg., ImageNet) can help boost performance once fine-tuned on a usually much smaller target set, has…

计算机视觉与模式识别 · 计算机科学 2020-11-24 Saining Xie , Jiatao Gu , Demi Guo , Charles R. Qi , Leonidas J. Guibas , Or Litany

The application of Contrastive Language-Image Pre-training (CLIP) in Weakly Supervised Semantic Segmentation (WSSS) research powerful cross-modal semantic understanding capabilities. Existing methods attempt to optimize input text prompts…

计算机视觉与模式识别 · 计算机科学 2024-12-30 Zhongxing Xu , Feilong Tang , Zhe Chen , Yingxue Su , Zhiyi Zhao , Ge Zhang , Jionglong Su , Zongyuan Ge

D scene graphs are an emerging 3D scene representation, that models both the objects present in the scene as well as their relationships. However, learning 3D scene graphs is a challenging task because it requires not only object labels but…

计算机视觉与模式识别 · 计算机科学 2023-10-26 Sebastian Koch , Pedro Hermosilla , Narunas Vaskevicius , Mirco Colosi , Timo Ropinski

Vision transformers (ViTs) have recently been widely applied to 3D point cloud understanding, with masked autoencoding as the predominant pre-training paradigm. However, the challenge of learning dense and informative semantic features from…

计算机视觉与模式识别 · 计算机科学 2025-08-13 Bin Ren , Xiaoshui Huang , Mengyuan Liu , Hong Liu , Fabio Poiesi , Nicu Sebe , Guofeng Mei

Despite recent success of self-supervised based contrastive learning model for 3D point clouds representation, the adversarial robustness of such pre-trained models raised concerns. Adversarial contrastive learning (ACL) is considered an…

计算机视觉与模式识别 · 计算机科学 2022-09-16 Junxuan Huang , Yatong An , Lu cheng , Bai Chen , Junsong Yuan , Chunming Qiao

Contrastive Language-Image Pre-training (CLIP) has shown impressive performance in aligning visual and textual representations. Recent studies have extended this paradigm to 3D vision to improve scene understanding for autonomous driving. A…

计算机视觉与模式识别 · 计算机科学 2026-03-10 Ximeng Tao , Dimitar Filev , Gaurav Pandey

Annotating large-scale point clouds is highly time-consuming and often infeasible for many complex real-world tasks. Point cloud pre-training has therefore become a promising strategy for learning discriminative representations without…

计算机视觉与模式识别 · 计算机科学 2026-03-17 Guofeng Mei , Xiaoshui Huang , Juan Liu , Jian Zhang , Qiang Wu

Contrastive language-image pre-training (CLIP) is a powerful vision-language model that has shown great benefits for various tasks. However, we have identified some issues with its explainability, which undermine its credibility and limit…

计算机视觉与模式识别 · 计算机科学 2024-09-17 Yi Li , Hualiang Wang , Yiqun Duan , Jiheng Zhang , Xiaomeng Li

Contrastive learning (CL) for Vision Transformers (ViTs) in image domains has achieved performance comparable to CL for traditional convolutional backbones. However, in 3D point cloud pretraining with ViTs, masked autoencoder (MAE) modeling…

计算机视觉与模式识别 · 计算机科学 2024-07-09 Bin Ren , Guofeng Mei , Danda Pani Paudel , Weijie Wang , Yawei Li , Mengyuan Liu , Rita Cucchiara , Luc Van Gool , Nicu Sebe

Large language models (LLMs) have emerged as powerful general-purpose interfaces for many machine learning problems. Recent work has adapted LLMs to generative visual tasks like image captioning, visual question answering, and visual chat,…

计算机视觉与模式识别 · 计算机科学 2024-03-28 Piotr Teterwak , Ximeng Sun , Bryan A. Plummer , Kate Saenko , Ser-Nam Lim

Contrastive Language-Image Pre-Training (CLIP) is a popular method for learning multimodal latent spaces with well-organized semantics. Despite its wide range of applications, CLIP's latent space is known to fail at handling complex…

机器学习 · 计算机科学 2026-03-17 Raphi Kang , Yue Song , Georgia Gkioxari , Pietro Perona

Visual and linguistic pre-training aims to learn vision and language representations together, which can be transferred to visual-linguistic downstream tasks. However, there exists semantic confusion between language and vision during the…

计算机视觉与模式识别 · 计算机科学 2023-04-11 Shentong Mo , Jingfei Xia , Ihor Markevych