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Regularization is used in many different areas of optimization when solutions are sought which not only minimize a given function, but also possess a certain degree of regularity. Popular applications are image denoising, sparse regression…

Optimization and Control · Mathematics 2021-11-15 Bennet Gebken , Katharina Bieker , Sebastian Peitz

The rapid development of deep learning has made a great progress in image segmentation, one of the fundamental tasks of computer vision. However, the current segmentation algorithms mostly rely on the availability of pixel-level…

Computer Vision and Pattern Recognition · Computer Science 2023-02-16 Wei Shen , Zelin Peng , Xuehui Wang , Huayu Wang , Jiazhong Cen , Dongsheng Jiang , Lingxi Xie , Xiaokang Yang , Qi Tian

This paper proposes a novel pixel-level distribution regularization scheme (DRSL) for self-supervised domain adaptation of semantic segmentation. In a typical setting, the classification loss forces the semantic segmentation model to…

Computer Vision and Pattern Recognition · Computer Science 2022-06-22 Javed Iqbal , Hamza Rawal , Rehan Hafiz , Yu-Tseh Chi , Mohsen Ali

The intricate morphology of brain vessels poses significant challenges for automatic segmentation models, which usually focus on a single imaging modality. However, accurately treating brain-related conditions requires a comprehensive…

Computer Vision and Pattern Recognition · Computer Science 2025-10-03 Francesco Galati , Daniele Falcetta , Rosa Cortese , Ferran Prados , Ninon Burgos , Maria A. Zuluaga

Learning-based methods for visual segmentation have made progress on particular types of segmentation tasks, but are limited by the necessary supervision, the narrow definitions of fixed tasks, and the lack of control during inference for…

Computer Vision and Pattern Recognition · Computer Science 2018-06-20 Kate Rakelly , Evan Shelhamer , Trevor Darrell , Alexei A. Efros , Sergey Levine

All imaging modalities such as computed tomography (CT), emission tomography and magnetic resonance imaging (MRI) require a reconstruction approach to produce an image. A common image processing task for applications that utilise those…

Numerous total variation (TV) regularizers, engaged in image restoration problem, encode the gradients by means of simple $[-1,1]$ FIR filter. Despite its low computational processing, this filter severely deviates signal's high frequency…

Optimization and Control · Mathematics 2015-06-17 Mahdi S. Hosseini , Konstantinos N. Plataniotis

Automating classification and segmentation process of abnormal regions in different body organs has a crucial role in most of medical imaging applications such as funduscopy, endoscopy, and dermoscopy. Detecting multiple abnormalities in…

Computer Vision and Pattern Recognition · Computer Science 2018-10-17 Mohsen Hajabdollahi , Reza Esfandiarpoor , Elyas Sabeti , Nader Karimi , Kayvan Najarian , S. M. Reza Soroushmehr , Shadrokh Samavi

Shearlet tight frames have been extensively studied during the last years due to their optimal approximation properties of cartoon-like images and their unified treatment of the continuum and digital setting. However, these studies only…

Functional Analysis · Mathematics 2015-03-13 P. Kittipoom , G. Kutyniok , W. Lim

Semantic segmentation in surgical videos is a prerequisite for a broad range of applications towards improving surgical outcomes and surgical video analysis. However, semantic segmentation in surgical videos involves many challenges. In…

Image and Video Processing · Electrical Eng. & Systems 2021-09-28 Negin Ghamsarian , Mario Taschwer , Doris Putzgruber-Adamitsch , Stephanie Sarny , Yosuf El-Shabrawi , Klaus Schoeffmann

An increasing amount of applications rely on data-driven models that are deployed for perception tasks across a sequence of scenes. Due to the mismatch between training and deployment data, adapting the model on the new scenes is often…

Computer Vision and Pattern Recognition · Computer Science 2025-10-15 Zhizheng Liu , Francesco Milano , Jonas Frey , Roland Siegwart , Hermann Blum , Cesar Cadena

Deep neural networks have enormous representational power which leads them to overfit on most datasets. Thus, regularizing them is important in order to reduce overfitting and enhance their generalization capabilities. Recently, channel…

Computer Vision and Pattern Recognition · Computer Science 2021-06-18 Sudhakar Kumawat , Gagan Kanojia , Shanmuganathan Raman

Recent years have witnessed the great progress of deep neural networks on semantic segmentation, particularly in medical imaging. Nevertheless, training high-performing models require large amounts of pixel-level ground truth masks, which…

Computer Vision and Pattern Recognition · Computer Science 2020-04-10 Abdur R Feyjie , Reza Azad , Marco Pedersoli , Claude Kauffman , Ismail Ben Ayed , Jose Dolz

In recent years, there has been remarkable progress in supervised image segmentation. Video segmentation is less explored, despite the temporal dimension being highly informative. Semantic labels, e.g. that cannot be accurately detected in…

Computer Vision and Pattern Recognition · Computer Science 2019-08-30 Radu Sibechi , Olaf Booij , Nora Baka , Peter Bloem

It is well accepted that convolutional neural networks play an important role in learning excellent features for image classification and recognition. However, in tradition they only allow adjacent layers connected, limiting integration of…

Computer Vision and Pattern Recognition · Computer Science 2017-10-04 Yujian Li , Ting Zhang , Zhaoying Liu , Haihe Hu

Current medical image segmentation approaches have limitations in deeply exploring multi-scale information and effectively combining local detail textures with global contextual semantic information. This results in over-segmentation,…

Computer Vision and Pattern Recognition · Computer Science 2025-01-08 Zhenkun Lu , Chaoyin She , Wei Wang , Qinghua Huang

Almost all existing deep learning approaches for semantic segmentation tackle this task as a pixel-wise classification problem. Yet humans understand a scene not in terms of pixels, but by decomposing it into perceptual groups and…

Computer Vision and Pattern Recognition · Computer Science 2019-10-31 Jyh-Jing Hwang , Stella X. Yu , Jianbo Shi , Maxwell D. Collins , Tien-Ju Yang , Xiao Zhang , Liang-Chieh Chen

Segmenting an object in a video presents significant challenges. Each pixel must be accurately labelled, and these labels must remain consistent across frames. The difficulty increases when the segmentation is with arbitrary granularity,…

Computer Vision and Pattern Recognition · Computer Science 2025-02-20 Amirhossein Alimohammadi , Sauradip Nag , Saeid Asgari Taghanaki , Andrea Tagliasacchi , Ghassan Hamarneh , Ali Mahdavi Amiri

Medical image segmentation is an important step in medical image analysis, especially as a crucial prerequisite for efficient disease diagnosis and treatment. The use of deep learning for image segmentation has become a prevalent trend. The…

Image and Video Processing · Electrical Eng. & Systems 2023-08-11 Wenjian Yao , Jiajun Bai , Wei Liao , Yuheng Chen , Mengjuan Liu , Yao Xie

In this paper, a new regularization term is proposed to solve mathematical image problems. By using difference operators in the four directions; horizontal, vertical and two diagonal directions, an estimation of derivative amplitude is…

Numerical Analysis · Mathematics 2022-09-14 Alireza Hosseini