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The need to analyze the available large synoptic multi-band surveys drives the development of new data-analysis methods. Photometric redshift estimation is one field of application where such new methods improved the results, substantially.…

天体物理仪器与方法 · 物理学 2018-01-31 Antonio D'Isanto , Kai Lars Polsterer

This paper presents Planar Gaussian Splatting (PGS), a novel neural rendering approach to learn the 3D geometry and parse the 3D planes of a scene, directly from multiple RGB images. The PGS leverages Gaussian primitives to model the scene…

计算机视觉与模式识别 · 计算机科学 2024-12-04 Farhad G. Zanjani , Hong Cai , Hanno Ackermann , Leila Mirvakhabova , Fatih Porikli

Data augmentation is an effective and universal technique for improving generalization performance of deep neural networks. It could enrich diversity of training samples that is essential in medical image segmentation tasks because 1) the…

图像与视频处理 · 电气工程与系统科学 2020-12-29 Ju Xu , Mengzhang Li , Zhanxing Zhu

We introduce a deterministic approach to edge detection and image segmentation by formulating pseudo-Boolean polynomials on image patches. The approach works by applying a binary classification of blob and edge regions in an image based on…

计算机视觉与模式识别 · 计算机科学 2023-08-30 Tendai Mapungwana Chikake , Boris Goldengorin , Alexey Samosyuk

The semantic segmentation of 3D shapes with a high-density of vertices could be impractical due to large memory requirements. To make this problem computationally tractable, we propose a neural-network based approach that produces 3D…

计算机视觉与模式识别 · 计算机科学 2020-02-04 Davide Boscaini , Fabio Poiesi

With the introduction of spectral-domain optical coherence tomography (SDOCT), much larger image datasets are routinely acquired compared to what was possible using the previous generation of time-domain OCT. Thus, there is a critical need…

计算机视觉与模式识别 · 计算机科学 2015-08-06 Yankui Sun , Tian Zhang , Yue Zhao , Yufan He

With the introduction of spectral-domain optical coherence tomography (OCT), much larger image datasets are routinely acquired compared to what was possible using the previous generation of time-domain OCT. Thus, the need for 3-D…

计算机视觉与模式识别 · 计算机科学 2012-05-03 Yankui Sun , Tian Zhang

Most of the existing semantic segmentation approaches with image-level class labels as supervision, highly rely on the initial class activation map (CAM) generated from the standard classification network. In this paper, a novel…

计算机视觉与模式识别 · 计算机科学 2022-09-19 Jinlong Li , Zequn Jie , Xu Wang , Yu Zhou , Xiaolin Wei , Lin Ma

Event cameras are bio-inspired sensors that offer several advantages, such as low latency, high-speed and high dynamic range, to tackle challenging scenarios in computer vision. This paper presents a solution to the problem of 3D…

计算机视觉与模式识别 · 计算机科学 2019-01-21 Yi Zhou , Guillermo Gallego , Henri Rebecq , Laurent Kneip , Hongdong Li , Davide Scaramuzza

High-resolution images are prevalent in various applications, such as autonomous driving and computer-aided diagnosis. However, training neural networks on such images is computationally challenging and easily leads to out-of-memory errors…

计算机视觉与模式识别 · 计算机科学 2023-03-08 Benjamin Bergner , Christoph Lippert , Aravindh Mahendran

Tensor networks are efficient factorisations of high-dimensional tensors into a network of lower-order tensors. They have been most commonly used to model entanglement in quantum many-body systems and more recently are witnessing increased…

计算机视觉与模式识别 · 计算机科学 2022-02-24 Raghavendra Selvan , Erik B Dam , Søren Alexander Flensborg , Jens Petersen

Plane feature is a kind of stable landmark to reduce drift error in SLAM system. It is easy and fast to extract planes from dense point cloud, which is commonly acquired from RGB-D camera or lidar. But for stereo camera, it is hard to…

计算机视觉与模式识别 · 计算机科学 2021-07-30 Xiaoyu Zhang , Wei Wang , Xianyu Qi , Ziwei Liao

Extracting a Construction Tree from potentially noisy point clouds is an important aspect of Reverse Engineering tasks in Computer Aided Design. Solutions based on algorithmic geometry impose constraints on usable model representations…

图形学 · 计算机科学 2020-08-11 Markus Friedrich , Sebastian Feld , Thomy Phan , Pierre-Alain Fayolle

Unsupervised pixel-level defective region segmentation is an important task in image-based anomaly detection for various industrial applications. The state-of-the-art methods have their own advantages and limitations:…

计算机视觉与模式识别 · 计算机科学 2022-11-08 Shancong Mou , Meng Cao , Haoping Bai , Ping Huang , Jianjun Shi , Jiulong Shan

Several variants of Neural Radiance Fields (NeRFs) have significantly improved the accuracy of synthesized images and surface reconstruction of 3D scenes/objects. In all of these methods, a key characteristic is that none can train the…

计算机视觉与模式识别 · 计算机科学 2025-06-11 Gonçalo Dias Pais , Valter Piedade , Moitreya Chatterjee , Marcus Greiff , Pedro Miraldo

Deep learning-based networks are among the most prominent methods to learn linear patterns and extract this type of information from diverse imagery conditions. Here, we propose a deep learning approach based on graphs to detect plantation…

Local feature matching aims at establishing sparse correspondences between a pair of images. Recently, detector-free methods present generally better performance but are not satisfactory in image pairs with large scale differences. In this…

计算机视觉与模式识别 · 计算机科学 2024-01-24 Junjie Ni , Yijin Li , Zhaoyang Huang , Hongsheng Li , Hujun Bao , Zhaopeng Cui , Guofeng Zhang

In this paper, we propose an efficient feature pruning strategy for 3D small object detection. Conventional 3D object detection methods struggle on small objects due to the weak geometric information from a small number of points. Although…

计算机视觉与模式识别 · 计算机科学 2024-07-16 Xiuwei Xu , Zhihao Sun , Ziwei Wang , Hongmin Liu , Jie Zhou , Jiwen Lu

Detecting changes in high-dimensional time series is difficult because it involves the comparison of probability densities that need to be estimated from finite samples. In this paper, we present the first feature extraction method tailored…

机器学习 · 计算机科学 2015-03-19 Duncan Blythe , Paul von Bünau , Frank Meinecke , Klaus-Robert Müller

This paper introduces a novel feature extraction technique for the analysis of spectral line Stokes profiles. The procedure is based on the use of an auto-associative artificial neural network containing non-linear hidden layers. The neural…

天体物理学 · 物理学 2009-11-10 H. Socas-Navarro