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In this paper, we introduce deep learning technology to tackle two traditional low-level image processing problems, companding and inverse halftoning. We make two main contributions. First, to the best knowledge of the authors, this is the…

Computer Vision and Pattern Recognition · Computer Science 2017-07-24 Xianxu Hou , Guoping Qiu

This paper presents a set of novel scan-matching techniques for vehicle pose estimation using automotive radar measurements. The proposed approach modifies the Normal Distributions Transform (NDT) -- a state-of-the-art scan-matching SLAM…

Signal Processing · Electrical Eng. & Systems 2021-07-21 Martijn Heller , Nikita Petrov , Alexander Yarovoy

Convolutional Neural Network (CNN) has demonstrated impressive ability to represent hyperspectral images and to achieve promising results in hyperspectral image classification. However, traditional CNN models can only operate convolution on…

Image and Video Processing · Electrical Eng. & Systems 2019-05-16 Sheng Wan , Chen Gong , Ping Zhong , Bo Du , Lefei Zhang , Jian Yang

Deformable image registration is a standard engineering problem used to determine the distortion experienced by a body by comparing two images of it in different states. This study introduces two new DIR methods designed to capture…

Computer Vision and Pattern Recognition · Computer Science 2024-09-04 Daniel E. Hurtado , Axel Osses , Rodrigo Quezada

Beyond the complexity of CNNs that require training on large annotated datasets, the domain shift between design and operational data has limited the adoption of CNNs in many real-world applications. For instance, in person…

Computer Vision and Pattern Recognition · Computer Science 2021-01-20 Le Thanh Nguyen-Meidine , Atif Belal , Madhu Kiran , Jose Dolz , Louis-Antoine Blais-Morin , Eric Granger

Convolutional Neural Network(CNN) has been widely used for image recognition with great success. However, there are a number of limitations of the current CNN based image recognition paradigm. First, the receptive field of CNN is generally…

Computer Vision and Pattern Recognition · Computer Science 2018-03-28 Dong-Qing Zhang

Transformer-based models have achieved strong performance in remote sensing image captioning by capturing long-range dependencies and contextual information. However, their practical deployment is hindered by high computational costs,…

Computer Vision and Pattern Recognition · Computer Science 2025-06-12 Swadhin Das , Divyansh Mundra , Priyanshu Dayal , Raksha Sharma

We propose to bridge the gap between semi-supervised and unsupervised image recognition with a flexible method that performs well for both generalized category discovery (GCD) and image clustering. Despite the overlap in motivation between…

Computer Vision and Pattern Recognition · Computer Science 2025-03-19 Gihan Jayatilaka , Abhinav Shrivastava , Matthew Gwilliam

Discrete transforms play an important role in many signal processing applications, and low-complexity alternatives for classical transforms became popular in recent years. Particularly, the discrete cosine transform (DCT) has proven to be…

Signal Processing · Electrical Eng. & Systems 2020-06-23 D. R. Canterle , T. L. T. da Silveira , F. M. Bayer , R. J. Cintra

Change detection (CD) by comparing two bi-temporal images is a crucial task in remote sensing. With the advantages of requiring no cumbersome labeled change information, unsupervised CD has attracted extensive attention in the community.…

Computer Vision and Pattern Recognition · Computer Science 2023-08-03 Qingsong Xu , Yilei Shi , Jianhua Guo , Chaojun Ouyang , Xiao Xiang Zhu

In this paper, we propose a novel unsupervised domain adaptation algorithm based on deep learning for visual object recognition. Specifically, we design a new model called Deep Reconstruction-Classification Network (DRCN), which jointly…

Computer Vision and Pattern Recognition · Computer Science 2016-08-03 Muhammad Ghifary , W. Bastiaan Kleijn , Mengjie Zhang , David Balduzzi , Wen Li

This work presents a novel label-efficient selfsupervised representation learning-based approach for classifying diabetic retinopathy (DR) images in cross-domain settings. Most of the existing DR image classification methods are based on…

Image and Video Processing · Electrical Eng. & Systems 2023-04-25 Ekta Gupta , Varun Gupta , Muskaan Chopra , Prakash Chandra Chhipa , Marcus Liwicki

This paper addresses the problem of dense depth predictions from sparse distance sensor data and a single camera image on challenging weather conditions. This work explores the significance of different sensor modalities such as camera,…

Computer Vision and Pattern Recognition · Computer Science 2020-12-18 Sadique Adnan Siddiqui , Axel Vierling , Karsten Berns

Radon transform and its inverse operation are important techniques in medical imaging tasks. Recently, there has been renewed interest in Radon transform for applications such as content-based medical image retrieval. However, all studies…

Computer Vision and Pattern Recognition · Computer Science 2017-10-12 Morteza Babaie , H. R. Tizhoosh , Amin Khatami , M. E. Shiri

R-CNN style methods are sorts of the state-of-the-art object detection methods, which consist of region proposal generation and deep CNN classification. However, the proposal generation phase in this paradigm is usually time consuming,…

Computer Vision and Pattern Recognition · Computer Science 2017-04-27 Guiying Li , Junlong Liu , Chunhui Jiang , Liangpeng Zhang , Minlong Lin , Ke Tang

This work proposes a new image analysis tool called Label Consistent Transform Learning (LCTL). Transform learning is a recent unsupervised representation learning approach; we add supervision by incorporating a label consistency…

Image and Video Processing · Electrical Eng. & Systems 2019-12-25 Jyoti Maggu , Hemant K. Aggarwal , Angshul Majumdar

Recognizing objects and scenes are two challenging but essential tasks in image understanding. In particular, the use of RGB-D sensors in handling these tasks has emerged as an important area of focus for better visual understanding.…

Computer Vision and Pattern Recognition · Computer Science 2022-01-12 Ali Caglayan , Nevrez Imamoglu , Ahmet Burak Can , Ryosuke Nakamura

Recently, unsupervised image-to-image translation methods based on contrastive learning have achieved state-of-the-art results in many tasks. However, in the previous works, the negatives are sampled from the input image itself, which…

Computer Vision and Pattern Recognition · Computer Science 2023-07-06 Chen Zhao , Wei-Ling Cai , Zheng Yuan , Cheng-Wei Hu

The Radon transform is a fundamental tool for analyzing data in tomographic imaging, optimal transport, crystallography, and geometric analysis. Numerical computations require an accurate discretization. To deal with voxelized images and…

Numerical Analysis · Mathematics 2026-03-17 Robert Beinert , Jonas Bresch , Michael Quellmalz

Hyperspectral image super-resolution has attained widespread prominence to enhance the spatial resolution of hyperspectral images. However, convolution-based methods have encountered challenges in harnessing the global spatial-spectral…

Image and Video Processing · Electrical Eng. & Systems 2023-11-30 Shi Chen , Lefei Zhang , Liangpei Zhang