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In image compression, classical block-based separable transforms tend to be inefficient when image blocks contain arbitrarily shaped discontinuities. For this reason, transforms incorporating directional information are an appealing…

Information Theory · Computer Science 2018-10-24 Giulia Fracastoro , Sophie Marie Fosson , Enrico Magli

Image segmentation has long been a basic problem in computer vision. Depth-wise Layering is a kind of segmentation that slices an image in a depth-wise sequence unlike the conventional image segmentation problems dealing with surface-wise…

Computer Vision and Pattern Recognition · Computer Science 2020-11-22 Seyedsaeid Mirkamali , P. Nagabhushan

With the rapid development of whole brain imaging technology, a large number of brain images have been produced, which puts forward a great demand for efficient brain image compression methods. At present, the most commonly used compression…

Image and Video Processing · Electrical Eng. & Systems 2021-10-12 Dongmei Xue , Haichuan Ma , Li Li , Dong Liu , Zhiwei Xiong

This paper presents Deep Networks for Improved Segmentation Edges (DeNISE), a novel data enhancement technique using edge detection and segmentation models to improve the boundary quality of segmentation masks. DeNISE utilizes the inherent…

Computer Vision and Pattern Recognition · Computer Science 2023-09-06 Sander Riisøen Jyhne , Per-Arne Andersen , Morten Goodwin

Accurate localization of organ boundaries is critical in medical imaging for segmentation, registration, surgical planning, and radiotherapy. While deep convolutional networks (ConvNets) have advanced general-purpose edge detection to…

Computer Vision and Pattern Recognition · Computer Science 2026-05-11 Aarav Mehta , Priya Deshmukh , Vikram Singh , Siddharth Malhotra , Krishnan Menon Iyer , Tanvi Iyer

Despite the remarkable success of deep learning in pattern recognition, deep network models face the problem of training a large number of parameters. In this paper, we propose and evaluate a novel multi-path wavelet neural network…

Computer Vision and Pattern Recognition · Computer Science 2019-08-27 D. D. N. De Silva , H. W. M. K. Vithanage , K. S. D. Fernando , I. T. S. Piyatilake

This article present a new method to reconstruct slowly varying width defects in 2D waveguides using one-side section measurements at locally resonant frequencies. At these frequencies, locally resonant modes propagate in the waveguide up…

Numerical Analysis · Mathematics 2022-12-15 Angèle Niclas , Laurent Seppecher

Low-light images suffer from complex degradation, and existing enhancement methods often encode all degradation factors within a single latent space. This leads to highly entangled features and strong black-box characteristics, making the…

Computer Vision and Pattern Recognition · Computer Science 2025-07-17 Shuangli Du , Siming Yan , Zhenghao Shi , Zhenzhen You , Lu Sun

To address the challenge of segmenting noisy images with blurred or fragmented boundaries, this paper presents a robust version of Variational Model Based Tailored UNet (VM_TUNet), a hybrid framework that integrates variational methods with…

Computer Vision and Pattern Recognition · Computer Science 2025-12-09 Kaili Qi , Zhongyi Huang , Wenli Yang

Deep-learning based salient object detection methods achieve great improvements. However, there are still problems existing in the predictions, such as blurry boundary and inaccurate location, which is mainly caused by inadequate feature…

Computer Vision and Pattern Recognition · Computer Science 2021-08-24 Han Sun , Yetong Bian , Ningzhong Liu , Huiyu Zhou

Recently, there have been tremendous efforts in developing lightweight Deep Neural Networks (DNNs) with satisfactory accuracy, which can enable the ubiquitous deployment of DNNs in edge devices. The core challenge of developing compact and…

Computer Vision and Pattern Recognition · Computer Science 2024-02-02 Zhuo Su , Jiehua Zhang , Longguang Wang , Hua Zhang , Zhen Liu , Matti Pietikäinen , Li Liu

Used in the paper is an overcomplete piecewise-polynomial image model incorporating sparsity. The paper shows that using such a model, the edges in the image can be resolved robustly with respect to noise. Two variants of the proposed…

Optimization and Control · Mathematics 2018-10-16 Michaela Novosadová , Pavel Rajmic

Line segments are ubiquitous in our human-made world and are increasingly used in vision tasks. They are complementary to feature points thanks to their spatial extent and the structural information they provide. Traditional line detectors…

Computer Vision and Pattern Recognition · Computer Science 2023-03-29 Rémi Pautrat , Daniel Barath , Viktor Larsson , Martin R. Oswald , Marc Pollefeys

Velocity measurements made from multiple-epoch astronomical images of evolving objects with optically thin continuum emission (e.g. as relativistic jets or expanding supernova shells) may be confused as a result of the overlap of…

High Energy Astrophysical Phenomena · Physics 2016-02-17 F. Mertens , A. P. Lobanov

Anatomical consistency in biomarker segmentation is crucial for many medical image analysis tasks. A promising paradigm for achieving anatomically consistent segmentation via deep networks is incorporating pixel connectivity, a basic…

Image and Video Processing · Electrical Eng. & Systems 2023-04-04 Ziyun Yang , Sina Farsiu

Image segmentation is an important task in the domain of computer vision and medical imaging. In natural and medical images, intensity inhomogeneity, i.e. the varying image intensity, occurs often and it poses considerable challenges for…

Image and Video Processing · Electrical Eng. & Systems 2019-04-04 Raymond Chan , Hongfei Yang , Tieyong Zeng

Direct image-to-graph transformation is a challenging task that involves solving object detection and relationship prediction in a single model. Due to this task's complexity, large training datasets are rare in many domains, making the…

Computer Vision and Pattern Recognition · Computer Science 2024-12-06 Alexander H. Berger , Laurin Lux , Suprosanna Shit , Ivan Ezhov , Georgios Kaissis , Martin J. Menten , Daniel Rueckert , Johannes C. Paetzold

Segmenting the retinal vasculature entails a trade-off between how much of the overall vascular structure we identify vs. how precisely we segment individual vessels. In particular, state-of-the-art methods tend to under-segment faint…

Computer Vision and Pattern Recognition · Computer Science 2019-03-28 Aashis Khanal , Rolando Estrada

Latest diffusion-based methods for many image restoration tasks outperform traditional models, but they encounter the long-time inference problem. To tackle it, this paper proposes a Wavelet-Based Diffusion Model (WaveDM). WaveDM learns the…

Computer Vision and Pattern Recognition · Computer Science 2024-01-26 Yi Huang , Jiancheng Huang , Jianzhuang Liu , Mingfu Yan , Yu Dong , Jiaxi Lv , Chaoqi Chen , Shifeng Chen

Remote sensing image change detection is of great importance in disaster assessment and urban planning. The mainstream method is to use encoder-decoder models to detect the change region of two input images. Since the change content of…

Computer Vision and Pattern Recognition · Computer Science 2022-08-18 Hongkun Liu , Zican Hu , Qichen Ding , Xueyun Chen