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Foreground segmentation is an essential task in the field of image understanding. Under unsupervised conditions, different images and instances always have variable expressions, which make it difficult to achieve stable segmentation…

Computer Vision and Pattern Recognition · Computer Science 2020-05-22 Xi Li , Huimin Ma , Hongbing Ma , Yidong Wang

The success of deep learning has set new benchmarks for many medical image analysis tasks. However, deep models often fail to generalize in the presence of distribution shifts between training (source) data and test (target) data. One…

Image and Video Processing · Electrical Eng. & Systems 2022-06-28 Dwarikanath Mahapatra

The accuracy and robustness of image classification with supervised deep learning are dependent on the availability of large-scale, annotated training data. However, there is a paucity of annotated data available due to the complexity of…

Computer Vision and Pattern Recognition · Computer Science 2019-03-27 Euijoon Ahn , Ashnil Kumar , Dagan Feng , Michael Fulham , Jinman Kim

Change detection in remote sensing imagery is essential for a variety of applications such as urban planning, disaster management, and climate research. However, existing methods for identifying semantically changed areas overlook the…

Computer Vision and Pattern Recognition · Computer Science 2023-12-08 Maximilian Bernhard , Niklas Strauß , Matthias Schubert

Biological imaging data are often partially confounded or contain unwanted variability. Examples of such phenomena include variable lighting across microscopy image captures, stain intensity variation in histological slides, and batch…

Computer Vision and Pattern Recognition · Computer Science 2018-11-28 Craig A. Glastonbury , Michael Ferlaino , Christoffer Nellåker , Cecilia M. Lindgren

Infrared and visible image fusion, as a hot topic in image processing and image enhancement, aims to produce fused images retaining the detail texture information in visible images and the thermal radiation information in infrared images. A…

Image and Video Processing · Electrical Eng. & Systems 2021-04-15 Zixiang Zhao , Jiangshe Zhang , Shuang Xu , Kai Sun , Chunxia Zhang , Junmin Liu

Benefited from the deep learning, image Super-Resolution has been one of the most developing research fields in computer vision. Depending upon whether using a discriminator or not, a deep convolutional neural network can provide an image…

Computer Vision and Pattern Recognition · Computer Science 2020-04-28 Zhi-Song Liu , Wan-Chi Siu , Li-Wen Wang , Chu-Tak Li , Marie-Paule Cani , Yui-Lam Chan

Semi-supervised change detection (SSCD) utilizes partially labeled data and a large amount of unlabeled data to detect changes. However, the transformer-based SSCD network does not perform as well as the convolution-based SSCD network due…

Computer Vision and Pattern Recognition · Computer Science 2024-09-24 Yan Xing , Qi'ao Xu , Jingcheng Zeng , Rui Huang , Sihua Gao , Weifeng Xu , Yuxiang Zhang , Wei Fan

Unsupervised/self-supervised time series representation learning is a challenging problem because of its complex dynamics and sparse annotations. Existing works mainly adopt the framework of contrastive learning with the time-based…

Machine Learning · Computer Science 2022-05-31 Ling Yang , Shenda Hong

With an unprecedented increase in the number of agents and systems that aim to navigate the real world using visual cues and the rising impetus for 3D Vision Models, the importance of depth estimation is hard to understate. While supervised…

Computer Vision and Pattern Recognition · Computer Science 2022-11-22 Snehal Singh Tomar , Maitreya Suin , A. N. Rajagopalan

The inclusion of spatial information into spectral classifiers for fine-resolution hyperspectral imagery has led to significant improvements in terms of classification performance. The task of spectral-spatial hyperspectral image…

Computer Vision and Pattern Recognition · Computer Science 2021-09-08 Puhong Duan , Pedram Ghamisi , Xudong Kang , Behnood Rasti , Shutao Li , Richard Gloaguen

Features from multiple scales can greatly benefit the semantic edge detection task if they are well fused. However, the prevalent semantic edge detection methods apply a fixed weight fusion strategy where images with different semantics are…

Computer Vision and Pattern Recognition · Computer Science 2019-02-26 Yuan Hu , Yunpeng Chen , Xiang Li , Jiashi Feng

The very high spatial resolution (VHR) remote sensing images have been an extremely valuable source for monitoring changes occurred on the earth surface. However, precisely detecting relevant changes in VHR images still remains a challenge,…

Computer Vision and Pattern Recognition · Computer Science 2022-03-01 Junzheng Wu , Ruigang Fu , Qiang Liu , Weiping Ni , Kenan Cheng , Biao Li , Yuli Sun

This study introduces a novel unsupervised medical image feature extraction method that employs spatial stratification techniques. An objective function based on weight is proposed to achieve the purpose of fast image recognition. The…

Image and Video Processing · Electrical Eng. & Systems 2024-06-28 Qishi Zhan , Dan Sun , Erdi Gao , Yuhan Ma , Yaxin Liang , Haowei Yang

Enhancing forward-looking sonar images is critical for accurate underwater target detection. Current deep learning methods mainly rely on supervised training with simulated data, but the difficulty in obtaining high-quality real-world…

Computer Vision and Pattern Recognition · Computer Science 2025-05-30 Zhisheng Zhang , Peng Zhang , Fengxiang Wang , Liangli Ma , Fuchun Sun

Deep learning-based change detection (CD) using remote sensing images has received increasing attention in recent years. However, how to effectively extract and fuse the deep features of bi-temporal images for improving the accuracy of CD…

Computer Vision and Pattern Recognition · Computer Science 2024-01-18 Yuanxin Ye , Mengmeng Wang , Liang Zhou , Guangyang Lei , Jianwei Fan , Yao Qin

Characterized by tremendous spectral information, hyperspectral image is able to detect subtle changes and discriminate various change classes for change detection. The recent research works dominated by hyperspectral binary change…

Image and Video Processing · Electrical Eng. & Systems 2021-12-14 Meiqi Hu , Chen Wu , Bo Du , Liangpei Zhang

Convolutional autoencoders have emerged as popular methods for unsupervised defect segmentation on image data. Most commonly, this task is performed by thresholding a pixel-wise reconstruction error based on an $\ell^p$ distance. This…

Computer Vision and Pattern Recognition · Computer Science 2019-04-09 Paul Bergmann , Sindy Löwe , Michael Fauser , David Sattlegger , Carsten Steger

The joint optimization of the reconstruction and classification error is a hard non convex problem, especially when a non linear mapping is utilized. In order to overcome this obstacle, a novel optimization strategy is proposed, in which a…

Machine Learning · Computer Science 2022-11-07 Ioannis A. Nellas , Sotiris K. Tasoulis , Vassilis P. Plagianakos , Spiros V. Georgakopoulos

With the hyperspectral imaging technology, hyperspectral data provides abundant spectral information and plays a more important role in geological survey, vegetation analysis and military reconnaissance. Different from normal change…

Image and Video Processing · Electrical Eng. & Systems 2020-10-28 Meiqi Hu , Chen Wu , Liangpei Zhang , Bo Du