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Contrastive self-supervised learning has attracted significant research attention recently. It learns effective visual representations from unlabeled data by embedding augmented views of the same image close to each other while pushing away…

计算机视觉与模式识别 · 计算机科学 2022-04-05 Yichen Zhang , Yifang Yin , Ying Zhang , Roger Zimmermann

The objective of this paper is to learn dense 3D shape correspondence for topology-varying generic objects in an unsupervised manner. Conventional implicit functions estimate the occupancy of a 3D point given a shape latent code. Instead,…

计算机视觉与模式识别 · 计算机科学 2023-01-02 Feng Liu , Xiaoming Liu

We introduce WarpRF, a training-free general-purpose framework for quantifying the uncertainty of radiance fields. Built upon the assumption that photometric and geometric consistency should hold among images rendered by an accurate model,…

计算机视觉与模式识别 · 计算机科学 2025-06-30 Sadra Safadoust , Fabio Tosi , Fatma Güney , Matteo Poggi

For single image defocus deblurring, acquiring well-aligned training pairs (or training triplets), i.e., a defocus blurry image, an all-in-focus sharp image (and a defocus blur map), is a challenging task for developing effective deblurring…

计算机视觉与模式识别 · 计算机科学 2025-06-30 Dongwei Ren , Xinya Shu , Yu Li , Xiaohe Wu , Jin Li , Wangmeng Zuo

Unsupervised change detection techniques are generally constrained to two multi-band optical images acquired at different times through sensors sharing the same spatial and spectral resolution. This scenario is suitable for a straight…

图像与视频处理 · 电气工程与系统科学 2018-04-10 Vinicius Ferraris , Nicolas Dobigeon , Marie Chabert

Supervised training for real-world denoising presents challenges due to the difficulty of collecting large datasets of paired noisy and clean images. Recent methods have attempted to address this by utilizing unpaired datasets of clean and…

计算机视觉与模式识别 · 计算机科学 2025-03-28 Hamadi Chihaoui , Paolo Favaro

We propose a self-supervised training approach for learning view-invariant dense visual descriptors using image augmentations. Unlike existing works, which often require complex datasets, such as registered RGBD sequences, we train on an…

Stereo matching and flow estimation are two essential tasks for scene understanding, spatially in 3D and temporally in motion. Existing approaches have been focused on the unsupervised setting due to the limited resource to obtain the…

计算机视觉与模式识别 · 计算机科学 2019-05-23 Hsueh-Ying Lai , Yi-Hsuan Tsai , Wei-Chen Chiu

Generative Adversarial Networks have shown impressive results for the task of object translation, including face-to-face translation. A key component behind the success of recent approaches is the self-consistency loss, which encourages a…

计算机视觉与模式识别 · 计算机科学 2018-11-09 Enrique Sanchez , Michel Valstar

There have been a fairly of research interests in exploring the disentanglement of appearance and shape from human images. Most existing endeavours pursuit this goal by either using training images with annotations or regulating the…

计算机视觉与模式识别 · 计算机科学 2020-07-31 Hongtao Yang , Tong Zhang , Wenbing Huang , Xuming He , Fatih Porikli

We seek a practical method for establishing dense correspondences between two images with similar content, but possibly different 3D scenes. One of the challenges in designing such a system is the local scale differences of objects…

计算机视觉与模式识别 · 计算机科学 2016-04-20 Moria Tau , Tal Hassner

Images with different resolutions are ubiquitous in public person re-identification (ReID) datasets and real-world scenes, it is thus crucial for a person ReID model to handle the image resolution variations for improving its generalization…

计算机视觉与模式识别 · 计算机科学 2018-10-25 Zijie Zhuang , Haizhou Ai , Long Chen , Chong Shang

Unsupervised learning of optical flow, which leverages the supervision from view synthesis, has emerged as a promising alternative to supervised methods. However, the objective of unsupervised learning is likely to be unreliable in…

计算机视觉与模式识别 · 计算机科学 2020-12-01 Liang Liu , Jiangning Zhang , Ruifei He , Yong Liu , Yabiao Wang , Ying Tai , Donghao Luo , Chengjie Wang , Jilin Li , Feiyue Huang

In this paper, we address the problem of learning 3D human pose and body shape from 2D image dataset, without having to use 3D dataset (body shape and pose). The idea is to use dense correspondences between image points and a body surface,…

计算机视觉与模式识别 · 计算机科学 2019-07-30 Yusuke Yoshiyasu , Lucas Gamez

The objective of this paper is self-supervised learning of feature embeddings that are suitable for matching correspondences along the videos, which we term correspondence flow. By leveraging the natural spatial-temporal coherence in…

计算机视觉与模式识别 · 计算机科学 2019-07-30 Zihang Lai , Weidi Xie

This paper addresses the challenge of dense pixel correspondence estimation between two images. This problem is closely related to optical flow estimation task where ConvNets (CNNs) have recently achieved significant progress. While optical…

计算机视觉与模式识别 · 计算机科学 2018-10-23 Iaroslav Melekhov , Aleksei Tiulpin , Torsten Sattler , Marc Pollefeys , Esa Rahtu , Juho Kannala

Weakly supervised localization aims at finding target object regions using only image-level supervision. However, localization maps extracted from classification networks are often not accurate due to the lack of fine pixel-level…

计算机视觉与模式识别 · 计算机科学 2020-08-13 Xiaolin Zhang , Yunchao Wei , Yi Yang

Metric Learning for visual similarity has mostly adopted binary supervision indicating whether a pair of images are of the same class or not. Such a binary indicator covers only a limited subset of image relations, and is not sufficient to…

计算机视觉与模式识别 · 计算机科学 2019-04-23 Sungyeon Kim , Minkyo Seo , Ivan Laptev , Minsu Cho , Suha Kwak

Image captioning is a longstanding problem in the field of computer vision and natural language processing. To date, researchers have produced impressive state-of-the-art performance in the age of deep learning. Most of these…

计算机视觉与模式识别 · 计算机科学 2022-07-20 Zihang Meng , David Yang , Xuefei Cao , Ashish Shah , Ser-Nam Lim

Unpaired image-to-image translation is a class of vision problems whose goal is to find the mapping between different image domains using unpaired training data. Cycle-consistency loss is a widely used constraint for such problems. However,…

计算机视觉与模式识别 · 计算机科学 2021-01-19 Yihao Zhao , Ruihai Wu , Hao Dong