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Implicit Neural Representations (INRs) have emerged and shown their benefits over discrete representations in recent years. However, fitting an INR to the given observations usually requires optimization with gradient descent from scratch,…

Machine Learning · Computer Science 2022-08-08 Yinbo Chen , Xiaolong Wang

Accurate and robust localization and mapping are essential components for most autonomous robots. In this paper, we propose a SLAM system for building globally consistent maps, called PIN-SLAM, that is based on an elastic and compact…

Robotics · Computer Science 2024-07-03 Yue Pan , Xingguang Zhong , Louis Wiesmann , Thorbjörn Posewsky , Jens Behley , Cyrill Stachniss

Implicit neural representation (INR) has proven to be accurate and efficient in various domains. In this work, we explore how different neural networks can be designed as a new texture INR, which operates in a continuous manner rather than…

Computer Vision and Pattern Recognition · Computer Science 2026-02-03 Albert Kwok , Zheyuan Hu , Dounia Hammou

Computed Tomography (CT) is pivotal in industrial quality control and medical diagnostics. Sparse-view CT, offering reduced ionizing radiation, faces challenges due to its under-sampled nature, leading to ill-posed reconstruction problems.…

Computer Vision and Pattern Recognition · Computer Science 2024-11-06 Jiayang Shi , Junyi Zhu , Daniel M. Pelt , K. Joost Batenburg , Matthew B. Blaschko

CLIP has shown impressive results in aligning images and texts at scale. However, its ability to capture detailed visual features remains limited because CLIP matches images and texts at a global level. To address this issue, we propose…

Computer Vision and Pattern Recognition · Computer Science 2024-12-05 Rui Xiao , Sanghwan Kim , Mariana-Iuliana Georgescu , Zeynep Akata , Stephan Alaniz

Vision Transformers (ViTs) have recently become the state-of-the-art across many computer vision tasks. In contrast to convolutional networks (CNNs), ViTs enable global information sharing even within shallow layers of a network, i.e.,…

Computer Vision and Pattern Recognition · Computer Science 2023-04-04 Jongwoo Park , Kumara Kahatapitiya , Donghyun Kim , Shivchander Sudalairaj , Quanfu Fan , Michael S. Ryoo

In many computer vision applications, images are acquired with arbitrary or random rotations and translations, and in such setups, it is desirable to obtain semantic representations disentangled from the image orientation. Examples of such…

Computer Vision and Pattern Recognition · Computer Science 2023-06-13 Sehyun Kwon , Joo Young Choi , Ernest K. Ryu

Robot localization is an inverse problem of finding a robot's pose using a map and sensor measurements. In recent years, Invertible Neural Networks (INNs) have successfully solved ambiguous inverse problems in various fields. This paper…

Robotics · Computer Science 2022-09-27 Zirui Zang , Hongrui Zheng , Johannes Betz , Rahul Mangharam

We propose GS-IR, a novel inverse rendering approach based on 3D Gaussian Splatting (GS) that leverages forward mapping volume rendering to achieve photorealistic novel view synthesis and relighting results. Unlike previous works that use…

Computer Vision and Pattern Recognition · Computer Science 2024-03-29 Zhihao Liang , Qi Zhang , Ying Feng , Ying Shan , Kui Jia

Thermal Infrared (TIR) cameras are gaining popularity in many computer vision applications due to their ability to operate under low-light conditions. Images produced by TIR cameras are usually difficult for humans to perceive visually,…

Computer Vision and Pattern Recognition · Computer Science 2019-04-05 Adam Nyberg , Abdelrahman Eldesokey , David Bergström , David Gustafsson

We propose SIR, an efficient method to decompose differentiable shadows for inverse rendering on indoor scenes using multi-view data, addressing the challenges in accurately decomposing the materials and lighting conditions. Unlike previous…

Computer Vision and Pattern Recognition · Computer Science 2025-04-29 Xiaokang Wei , Zhuoman Liu , Ping Li , Yan Luximon

Vision Transformers (ViTs) have demonstrated strong capabilities in capturing global dependencies but often struggle to efficiently represent fine-grained local details. Existing multi-scale approaches alleviate this issue by integrating…

Computer Vision and Pattern Recognition · Computer Science 2025-11-25 Qiyang Yu , Yu Fang , Tianrui Li , Xuemei Cao , Yan Chen , Jianghao Li , Fan Min

Video-based Visible-Infrared person re-identification (VVI-ReID) aims to retrieve the same pedestrian across visible and infrared modalities from video sequences. Existing methods tend to exploit modality-invariant visual features but…

Computer Vision and Pattern Recognition · Computer Science 2025-11-07 Yujie Yang , Shuang Li , Jun Ye , Neng Dong , Fan Li , Huafeng Li

Pathology foundation models learn morphological representations through self-supervised pretraining on large-scale whole-slide images, yet they do not explicitly capture the underlying molecular state of the tissue. Spatial transcriptomics…

Computer Vision and Pattern Recognition · Computer Science 2026-03-10 Minsoo Lee , Jonghyun Kim , Juseung Yun , Sunwoo Yu , Jongseong Jang

Generalizing a pretrained model to unseen datasets without retraining is an essential step toward a foundation model. However, achieving such cross-dataset, fully inductive inference is difficult in graph-structured data where feature…

Machine Learning · Computer Science 2025-12-15 Dooho Lee , Myeong Kong , Minho Jeong , Jaemin Yoo

Vision Transformer (ViT) has achieved remarkable performance in computer vision. However, positional encoding in ViT makes it substantially difficult to learn the intrinsic equivariance in data. Initial attempts have been made on designing…

Computer Vision and Pattern Recognition · Computer Science 2023-07-10 Renjun Xu , Kaifan Yang , Ke Liu , Fengxiang He

This paper aims to investigate representation learning for large scale visual place recognition, which consists of determining the location depicted in a query image by referring to a database of reference images. This is a challenging task…

Computer Vision and Pattern Recognition · Computer Science 2022-10-20 Amar Ali-bey , Brahim Chaib-draa , Philippe Giguère

In most existing learning systems, images are typically viewed as 2D pixel arrays. However, in another paradigm gaining popularity, a 2D image is represented as an implicit neural representation (INR) - an MLP that predicts an RGB pixel…

Computer Vision and Pattern Recognition · Computer Science 2021-06-29 Ivan Skorokhodov , Savva Ignatyev , Mohamed Elhoseiny

Robot localization remains a challenging task in GPS denied environments. State estimation approaches based on local sensors, e.g. cameras or IMUs, are drifting-prone for long-range missions as error accumulates. In this study, we aim to…

Computer Vision and Pattern Recognition · Computer Science 2022-05-17 Tianyi Zhang , Matthew Johnson-Roberson

Personalised 3D vascular models are valuable for diagnosis, prognosis and treatment planning in patients with cardiovascular disease. Traditionally, such models have been constructed with explicit representations such as meshes and voxel…

Image and Video Processing · Electrical Eng. & Systems 2022-09-19 Dieuwertje Alblas , Christoph Brune , Kak Khee Yeung , Jelmer M. Wolterink