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Averaging neural network weights sampled by a backbone stochastic gradient descent (SGD) is a simple yet effective approach to assist the backbone SGD in finding better optima, in terms of generalization. From a statistical perspective,…

Machine Learning · Computer Science 2022-09-20 Hao Guo , Jiyong Jin , Bin Liu

In this paper, we present a spatial rectifier to estimate surface normals of tilted images. Tilted images are of particular interest as more visual data are captured by arbitrarily oriented sensors such as body-/robot-mounted cameras.…

Computer Vision and Pattern Recognition · Computer Science 2022-07-15 Tien Do , Khiem Vuong , Stergios I. Roumeliotis , Hyun Soo Park

Dynamic DNN optimization techniques such as layer-skipping offer increased adaptability and efficiency gains but can lead to i) a larger memory footprint as in decision gates, ii) increased training complexity (e.g., with non-differentiable…

Machine Learning · Computer Science 2025-05-26 Guilherme Korol , Antonio Carlos Schneider Beck , Jeronimo Castrillon

RGB-based surface anomaly detection methods have advanced significantly. However, certain surface anomalies remain practically invisible in RGB alone, necessitating the incorporation of 3D information. Existing approaches that employ…

Computer Vision and Pattern Recognition · Computer Science 2023-11-03 Vitjan Zavrtanik , Matej Kristan , Danijel Skočaj

Vision-based surgical skill assessment (SSA) enables objective and scalable evaluation of operative performance. Progress in this field is constrained by the high cost and time demands for manual annotation of quantitative skill scores, as…

Computer Vision and Pattern Recognition · Computer Science 2026-04-01 Dimitrios Anastasiou , Razvan Caramalau , Jialang Xu , Runlong He , Freweini Tesfai , Matthew Boal , Nader Francis , Danail Stoyanov , Evangelos B. Mazomenos

Deep Neural Network (DNN) based super-resolution algorithms have greatly improved the quality of the generated images. However, these algorithms often yield significant artifacts when dealing with real-world super-resolution problems due to…

Computer Vision and Pattern Recognition · Computer Science 2021-11-29 Kangfu Mei , Shenglong Ye , Rui Huang

Though unsupervised domain adaptation (UDA) has achieved very impressive progress recently, it remains a great challenge due to missing target annotations and the rich discrepancy between source and target distributions. We propose Spectral…

Computer Vision and Pattern Recognition · Computer Science 2022-06-07 Jingyi Zhang , Jiaxing Huang , Zichen Tian , Shijian Lu

Localizing more sources than sensors with a sparse linear array (SLA) has long relied on minimizing a distance between two covariance matrices and recent algorithms often utilize semidefinite programming (SDP). Although deep neural network…

Signal Processing · Electrical Eng. & Systems 2025-03-11 Kuan-Lin Chen , Bhaskar D. Rao

Spatial-wise dynamic convolution has become a promising approach to improving the inference efficiency of deep networks. By allocating more computation to the most informative pixels, such an adaptive inference paradigm reduces the spatial…

Computer Vision and Pattern Recognition · Computer Science 2022-10-13 Yizeng Han , Zhihang Yuan , Yifan Pu , Chenhao Xue , Shiji Song , Guangyu Sun , Gao Huang

Discriminative features play an important role in image and object classification and also in other fields of research such as semi-supervised learning, fine-grained classification, out of distribution detection. Inspired by Linear…

Computer Vision and Pattern Recognition · Computer Science 2021-07-14 Mai Lan Ha , Gianni Franchi , Emanuel Aldea , Volker Blanz

Learning models on one labeled dataset that generalize well on another domain is a difficult task, as several shifts might happen between the data domains. This is notably the case for lidar data, for which models can exhibit large…

Computer Vision and Pattern Recognition · Computer Science 2024-06-27 Björn Michele , Alexandre Boulch , Gilles Puy , Tuan-Hung Vu , Renaud Marlet , Nicolas Courty

Frozen pretrained image representations are widely used for transfer learning: a backbone is kept fixed, feature vectors are extracted, and a lightweight classifier is trained on top. This pipeline usually feeds the full feature vector to…

Machine Learning · Computer Science 2026-05-12 Indar Kumar , Girish Karhana , Sai Krishna Jasti , Ankit Hemant Lade

The singular value decomposition (SVD) is a crucial tool in machine learning and statistical data analysis. However, it is highly susceptible to outliers in the data matrix. Existing robust SVD algorithms often sacrifice speed for…

Machine Learning · Statistics 2024-02-16 Sangil Han , Kyoowon Kim , Sungkyu Jung

Surface-from-gradients (SfG) aims to recover a three-dimensional (3D) surface from its gradients. Traditional methods encounter significant challenges in achieving high accuracy and handling high-resolution inputs, particularly facing the…

Computer Vision and Pattern Recognition · Computer Science 2025-01-22 Jiaqi Leng , Yakun Ju , Yuanxu Duan , Jiangnan Zhang , Qingxuan Lv , Zuxuan Wu , Hao Fan

Estimating surface normals from 3D point clouds is critical for various applications, including surface reconstruction and rendering. While existing methods for normal estimation perform well in regions where normals change slowly, they…

Computer Vision and Pattern Recognition · Computer Science 2023-08-24 Haoyi Xiu , Xin Liu , Weimin Wang , Kyoung-Sook Kim , Masashi Matsuoka

Spiking Neural Networks (SNNs) are well known as a promising energy-efficient alternative to conventional artificial neural networks. Subject to the preconceived impression that SNNs are sparse firing, the analysis and optimization of…

Neural and Evolutionary Computing · Computer Science 2023-08-17 Man Yao , Jiakui Hu , Guangshe Zhao , Yaoyuan Wang , Ziyang Zhang , Bo Xu , Guoqi Li

Developing a new Salient Object Detection (SOD) model involves selecting an ImageNet pre-trained backbone and creating novel feature refinement modules to use backbone features. However, adding new components to a pre-trained backbone needs…

Computer Vision and Pattern Recognition · Computer Science 2023-11-10 Rohit Venkata Sai Dulam , Chandra Kambhamettu

Reconstructing accurate 3D surfaces for street-view scenarios is crucial for applications such as digital entertainment and autonomous driving simulation. However, existing street-view datasets, including KITTI, Waymo, and nuScenes, only…

Computer Vision and Pattern Recognition · Computer Science 2024-11-08 Yubin Hu , Kairui Wen , Heng Zhou , Xiaoyang Guo , Yong-Jin Liu

With the burst development of neural networks in recent years, the task of normal estimation has once again become a concern. By introducing the neural networks to classic methods based on problem-specific knowledge, the adaptability of the…

Computer Vision and Pattern Recognition · Computer Science 2021-04-22 Jun Zhou , Wei Jin , Mingjie Wang , Xiuping Liu , Zhiyang Li , Zhaobin Liu

Deep learning has recently gained attention in the atmospheric and oceanic sciences for its potential to improve the accuracy of numerical simulations or to reduce computational costs. Super-resolution is one such technique for…

Atmospheric and Oceanic Physics · Physics 2023-09-21 Yuki Yasuda , Ryo Onishi
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