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Generating accurate and coherent image captions in a continual learning setting remains a major challenge due to catastrophic forgetting and the difficulty of aligning evolving visual concepts with language over time. In this work, we…

Computer Vision and Pattern Recognition · Computer Science 2025-11-19 Bertram Taetz , Gal Bordelius

The goal of contrastive learning based pre-training is to leverage large quantities of unlabeled data to produce a model that can be readily adapted downstream. Current approaches revolve around solving an image discrimination task: given…

Computer Vision and Pattern Recognition · Computer Science 2021-11-30 Chenhongyi Yang , Lichao Huang , Elliot J. Crowley

Deep learning has shown remarkable progress in medical image semantic segmentation, yet its success heavily depends on large-scale expert annotations and consistent data distributions. In practice, annotations are scarce, and images are…

Computer Vision and Pattern Recognition · Computer Science 2026-01-26 Ba-Thinh Lam , Thanh-Huy Nguyen , Hoang-Thien Nguyen , Quang-Khai Bui-Tran , Nguyen Lan Vi Vu , Phat K. Huynh , Ulas Bagci , Min Xu

Semantic segmentation is essential for comprehending images, but the process necessitates a substantial amount of detailed annotations at the pixel level. Acquiring such annotations can be costly in the real-world. Unsupervised domain…

Computer Vision and Pattern Recognition · Computer Science 2025-01-17 Jianzi Xiang , Cailu Wan , Zhu Cao

Ultrasound (US) image segmentation embraced its significant improvement in deep learning era. However, the lack of sharp boundaries in US images still remains an inherent challenge for segmentation. Previous methods often resort to global…

Image and Video Processing · Electrical Eng. & Systems 2020-10-13 Haoming Li , Xin Yang , Jiamin Liang , Wenlong Shi , Chaoyu Chen , Haoran Dou , Rui Li , Rui Gao , Guangquan Zhou , Jinghui Fang , Xiaowen Liang , Ruobing Huang , Alejandro Frangi , Zhiyi Chen , Dong Ni

Image-Text Retrieval (ITR) is challenging in bridging visual and lingual modalities. Contrastive learning has been adopted by most prior arts. Except for limited amount of negative image-text pairs, the capability of constrastive learning…

Computer Vision and Pattern Recognition · Computer Science 2026-03-27 Haoran Wang , Dongliang He , Wenhao Wu , Boyang Xia , Min Yang , Fu Li , Yunlong Yu , Zhong Ji , Errui Ding , Jingdong Wang

Despite recent advances in the field of supervised deep learning for text line segmentation, unsupervised deep learning solutions are beginning to gain popularity. In this paper, we present an unsupervised deep learning method that embeds…

Computer Vision and Pattern Recognition · Computer Science 2021-05-24 Berat Kurar Barakat , Ahmad Droby , Raid Saabni , Jihad El-Sana

We present a contrasting learning approach with data augmentation techniques to learn document representations in an unsupervised manner. Inspired by recent contrastive self-supervised learning algorithms used for image and NLP pretraining,…

Computation and Language · Computer Science 2021-03-29 Dongsheng Luo , Wei Cheng , Jingchao Ni , Wenchao Yu , Xuchao Zhang , Bo Zong , Yanchi Liu , Zhengzhang Chen , Dongjin Song , Haifeng Chen , Xiang Zhang

We propose a novel unsupervised backlit image enhancement method, abbreviated as CLIP-LIT, by exploring the potential of Contrastive Language-Image Pre-Training (CLIP) for pixel-level image enhancement. We show that the open-world CLIP…

Computer Vision and Pattern Recognition · Computer Science 2023-10-02 Zhexin Liang , Chongyi Li , Shangchen Zhou , Ruicheng Feng , Chen Change Loy

We present an unsupervised visual feature learning algorithm driven by context-based pixel prediction. By analogy with auto-encoders, we propose Context Encoders -- a convolutional neural network trained to generate the contents of an…

Computer Vision and Pattern Recognition · Computer Science 2016-11-22 Deepak Pathak , Philipp Krahenbuhl , Jeff Donahue , Trevor Darrell , Alexei A. Efros

Recent self-supervised contrastive methods have been able to produce impressive transferable visual representations by learning to be invariant to different data augmentations. However, these methods implicitly assume a particular set of…

Computer Vision and Pattern Recognition · Computer Science 2021-03-22 Tete Xiao , Xiaolong Wang , Alexei A. Efros , Trevor Darrell

In this work we present point-level region contrast, a self-supervised pre-training approach for the task of object detection. This approach is motivated by the two key factors in detection: localization and recognition. While accurate…

Computer Vision and Pattern Recognition · Computer Science 2022-04-20 Yutong Bai , Xinlei Chen , Alexander Kirillov , Alan Yuille , Alexander C. Berg

Recently, end-to-end trainable deep neural networks have significantly improved stereo depth estimation for perspective images. However, 360{\deg} images captured under equirectangular projection cannot benefit from directly adopting…

Computer Vision and Pattern Recognition · Computer Science 2020-03-27 Ning-Hsu Wang , Bolivar Solarte , Yi-Hsuan Tsai , Wei-Chen Chiu , Min Sun

Street view imagery is extensively utilized in representation learning for urban visual environments, supporting various sustainable development tasks such as environmental perception and socio-economic assessment. However, it is…

Computer Vision and Pattern Recognition · Computer Science 2026-02-24 Yong Li , Yingjing Huang , Gengchen Mai , Fan Zhang

In autonomous driving, monocular sequences contain lots of information. Monocular depth estimation, camera ego-motion estimation and optical flow estimation in consecutive frames are high-profile concerns recently. By analyzing tasks above,…

Computer Vision and Pattern Recognition · Computer Science 2020-08-21 Guangming Wang , Chi Zhang , Hesheng Wang , Jingchuan Wang , Yong Wang , Xinlei Wang

Recent advancements in self-supervised learning have demonstrated that effective visual representations can be learned from unlabeled images. This has led to increased interest in applying self-supervised learning to the medical domain,…

Computer Vision and Pattern Recognition · Computer Science 2023-04-10 Xiangyi Yan , Junayed Naushad , Chenyu You , Hao Tang , Shanlin Sun , Kun Han , Haoyu Ma , James Duncan , Xiaohui Xie

Recent advances in unsupervised domain adaptation for semantic segmentation have shown great potentials to relieve the demand of expensive per-pixel annotations. However, most existing works address the domain discrepancy by aligning the…

Computer Vision and Pattern Recognition · Computer Science 2020-07-16 Jiaxing Huang , Shijian Lu , Dayan Guan , Xiaobing Zhang

Self-supervised 3D representation learning aims to learn effective representations from large-scale unlabeled point clouds. Most existing approaches adopt point discrimination as the pretext task, which assigns matched points in two…

Computer Vision and Pattern Recognition · Computer Science 2024-03-15 Chengyao Wang , Li Jiang , Xiaoyang Wu , Zhuotao Tian , Bohao Peng , Hengshuang Zhao , Jiaya Jia

We address the unsupervised learning of several interconnected problems in low-level vision: single view depth prediction, camera motion estimation, optical flow, and segmentation of a video into the static scene and moving regions. Our key…

Computer Vision and Pattern Recognition · Computer Science 2019-03-13 Anurag Ranjan , Varun Jampani , Lukas Balles , Kihwan Kim , Deqing Sun , Jonas Wulff , Michael J. Black

Image-text retrieval is a widely studied topic in the field of computer vision due to the exponential growth of multimedia data, whose core concept is to measure the similarity between images and text. However, most existing retrieval…

Computer Vision and Pattern Recognition · Computer Science 2023-12-08 Yang Zhang