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Multi-traversal scene reconstruction is important for high-fidelity autonomous driving simulation and digital twin construction. This task involves integrating multiple sequences captured from the same geographical area at different times.…

计算机视觉与模式识别 · 计算机科学 2026-04-08 Yangyi Xiao , Siting Zhu , Baoquan Yang , Tianchen Deng , Yongbo Chen , Hesheng Wang

Cancer radiomics is an emerging discipline promising to elucidate lesion phenotypes and tumor heterogeneity through patterns of enhancement, texture, morphology, and shape. The prevailing technique for image texture analysis relies on the…

应用统计 · 统计学 2020-11-12 Xiao Li , Michele Guindani , Chaan S. Ng , Brian P. Hobbs

We propose a novel model for decomposing grayscale images into three distinct components: the structural part, representing sharp boundaries and regions with strong light-to-dark transitions; the smooth part, capturing soft shadows and…

计算机视觉与模式识别 · 计算机科学 2024-12-09 Roy Y. He , Hao Liu

The UN-Habitat estimates that over one billion people live in slums around the world. However, state-of-the-art techniques to detect the location of slum areas employ high-resolution satellite imagery, which is costly to obtain and process.…

计算机视觉与模式识别 · 计算机科学 2021-06-23 Agatha C. H. de Mattos , Gavin McArdle , Michela Bertolotto

We present a novel method for image anomaly detection, where algorithms that use samples drawn from some distribution of "normal" data, aim to detect out-of-distribution (abnormal) samples. Our approach includes a combination of encoder and…

图像与视频处理 · 电气工程与系统科学 2020-03-02 Nina Tuluptceva , Bart Bakker , Irina Fedulova , Anton Konushin

Background-Foreground classification is a well-studied problem in computer vision. Due to the pixel-wise nature of modeling and processing in the algorithm, it is usually difficult to satisfy real-time constraints. There is a trade-off…

机器学习 · 统计学 2019-11-19 B Ravi Kiran , Arindam Das , Senthil Yogamani

Multi-label Recognition (MLR) involves the identification of multiple objects within an image. To address the additional complexity of this problem, recent works have leveraged information from vision-language models (VLMs) trained on large…

计算机视觉与模式识别 · 计算机科学 2024-09-23 Samyak Rawlekar , Shubhang Bhatnagar , Vishnuvardhan Pogunulu Srinivasulu , Narendra Ahuja

The diffusion models (DMs) have demonstrated the remarkable capability of generating images via learning the noised score function of data distribution. Current DM sampling techniques typically rely on first-order Langevin dynamics at each…

计算机视觉与模式识别 · 计算机科学 2025-06-02 Fangyikang Wang , Hubery Yin , Lei Qian , Yinan Li , Shaobin Zhuang , Huminhao Zhu , Yilin Zhang , Yanlong Tang , Chao Zhang , Hanbin Zhao , Hui Qian , Chen Li

Perspective distortion (PD) leads to substantial alterations in the shape, size, orientation, angles, and spatial relationships of visual elements in images. Accurately determining camera intrinsic and extrinsic parameters is challenging,…

计算机视觉与模式识别 · 计算机科学 2024-10-10 Meenakshi Subhash Chippa , Prakash Chandra Chhipa , Kanjar De , Marcus Liwicki , Rajkumar Saini

The curvature regularities are well-known for providing strong priors in the continuity of edges, which have been applied to a wide range of applications in image processing and computer vision. However, these models are usually non-convex,…

数值分析 · 数学 2019-12-03 Qiuxiang Zhong , Ke Yin , Yuping Duan

A dark photon may kinetically mix with the Standard Model photon, leading to observable cosmological signatures. The mixing is resonantly enhanced when the dark photon mass matches the primordial plasma frequency, which depends sensitively…

宇宙学与河外天体物理 · 物理学 2020-12-11 Andrea Caputo , Hongwan Liu , Siddharth Mishra-Sharma , Joshua T. Ruderman

Grey-scale local algorithms have been suggested as a fast way of estimating surface area from grey-scale digital images. Their asymptotic mean has already been described. In this paper, the asymptotic behaviour of the variance is studied in…

概率论 · 数学 2016-02-24 Anne Marie Svane

The two-step galaxy morphology classification framework {\tt USmorph} successfully combines unsupervised machine learning (UML) with supervised machine learning (SML) methods. To enhance the UML step, we employed a dual-encoder architecture…

星系天体物理 · 物理学 2025-12-22 Xiaolei Yin , Guanwen Fang , Shiying Lu , Zesen Lin , Yao Dai , Chichun Zhou

Recently deep learning-based image compression methods have achieved significant achievements and gradually outperformed traditional approaches including the latest standard Versatile Video Coding (VVC) in both PSNR and MS-SSIM metrics. Two…

图像与视频处理 · 电气工程与系统科学 2024-02-13 Haisheng Fu , Feng Liang , Jianping Lin , Bing Li , Mohammad Akbari , Jie Liang , Guohe Zhang , Dong Liu , Chengjie Tu , Jingning Han

The Gaussian Process Latent Variable Model (GP-LVM) is a non-linear probabilistic method of embedding a high dimensional dataset in terms low dimensional `latent' variables. In this paper we illustrate that maximum a posteriori (MAP)…

机器学习 · 统计学 2013-07-02 James Barrett , Anthony C. C. Coolen

The problem of identifying change points in high-dimensional Gaussian graphical models (GGMs) in an online fashion is of interest, due to new applications in biology, economics and social sciences. The offline version of the problem, where…

统计理论 · 数学 2020-03-18 Hossein Keshavarz , George Michailidis

A central error measure in Gaussian DDPMs is the path-space KL divergence between the exact reverse chain and the learned Gaussian reverse process. This quantity is especially relevant for procedures such as classifier guidance, which…

机器学习 · 计算机科学 2026-05-22 Md Sahil Akhtar , Aymane El Gadarri , Vivek F. Farias , Adam D. Jozefiak

Heterogeneous graph neural network (HGNN) is a very popular technique for the modeling and analysis of heterogeneous graphs. Most existing HGNN-based approaches are supervised or semi-supervised learning methods requiring graphs to be…

机器学习 · 计算机科学 2023-11-17 Cuiying Huo , Dongxiao He , Yawen Li , Di Jin , Jianwu Dang , Weixiong Zhang , Witold Pedrycz , Lingfei Wu

We present the Deep Convolutional Gaussian Mixture Model (DCGMM), a new probabilistic approach for image modeling capable of density estimation, sampling and tractable inference. DCGMM instances exhibit a CNN-like layered structure, in…

机器学习 · 计算机科学 2022-03-22 Alexander Gepperth

Thanks to the recent success of generative adversarial network (GAN) for image synthesis, there are many exciting GAN approaches that successfully synthesize MR image contrast from other images with different contrasts. These approaches are…

图像与视频处理 · 电气工程与系统科学 2019-05-13 Dongwook Lee , Won-Jin Moon , Jong Chul Ye