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Planar markers are useful in robotics and computer vision for mapping and localisation. Given a detected marker in an image, a frequent task is to estimate the 6DOF pose of the marker relative to the camera, which is an instance of planar…

计算机视觉与模式识别 · 计算机科学 2019-09-27 Shin-Fang Ch'ng , Naoya Sogi , Pulak Purkait , Tat-Jun Chin , Kazuhiro Fukui

Many modern multi-modal models (e.g. CLIP) seek an embedding space in which the two modalities are aligned. Somewhat surprisingly, almost all existing models show a strong modality gap: the distribution of images is well-separated from the…

计算机视觉与模式识别 · 计算机科学 2026-04-29 Rhea Chowers , Oshri Naparstek , Udi Barzelay , Yair Weiss

We recently proposed DOVER-Lap, a method for combining overlap-aware speaker diarization system outputs. DOVER-Lap improved upon its predecessor DOVER by using a label mapping method based on globally-informed greedy search. In this paper,…

音频与语音处理 · 电气工程与系统科学 2021-06-07 Desh Raj , Sanjeev Khudanpur

Data augmentation has been proven effective for training high-accuracy convolutional neural network classifiers by preventing overfitting. However, building deep neural networks in real-world scenarios requires not only high accuracy on…

计算机视觉与模式识别 · 计算机科学 2024-03-14 Zhenglin Huang , Xiaoan Bao , Na Zhang , Qingqi Zhang , Xiaomei Tu , Biao Wu , Xi Yang

Deep learning has significantly advanced medical imaging analysis, yet variations in image resolution remain an overlooked challenge. Most methods address this by resampling images, leading to either information loss or computational…

计算机视觉与模式识别 · 计算机科学 2025-03-14 Ashay Patel , Michela Antonelli , Sebastien Ourselin , M. Jorge Cardoso

The high computational demands of Large Language Models (LLMs) motivate methods that reduce parameter count and accelerate inference. In response, model pruning emerges as an effective strategy, yet current methods typically focus on a…

Classical unsupervised learning methods like clustering and linear dimensionality reduction parametrize large-scale geometry when it is discrete or linear, while more modern methods from manifold learning find low dimensional representation…

机器学习 · 计算机科学 2025-09-23 Luis Scoccola , Uzu Lim , Heather A. Harrington

Since its introduction as a computable approximation of the Reeb graph, the Mapper graph has become one of the most popular tools from topological data analysis for performing data visualization and inference. However, finding an…

统计理论 · 数学 2025-06-04 Ziyad Oulhaj , Mathieu Carrière , Bertrand Michel

Cross-modal image-text retrieval is challenging because of the diverse possible associations between content from different modalities. Traditional methods learn a single-vector embedding to represent semantics of each sample, but struggle…

计算机视觉与模式识别 · 计算机科学 2025-06-27 Hani Alomari , Anushka Sivakumar , Andrew Zhang , Chris Thomas

We present a concept study on weak lensing map reconstruction through the cosmic magnification effect in galaxy number density distribution. We propose a minimal variance linear estimator to minimize both the dominant systematical and…

宇宙学与河外天体物理 · 物理学 2012-02-16 Xinjuan Yang , Pengjie Zhang

In a multiple measurement vector problem (MMV), where multiple signals share a common sparse support and are sampled by a common sensing matrix, we can expect joint sparsity to enable a further reduction in the number of required…

信息论 · 计算机科学 2015-06-03 Jong Min Kim , Ok Kyun Lee , Jong Chul Ye

We present a general linear algorithm for measuring the surface mass density 1-\kappa from the observable reduced shear g=\gamma/(1-\kappa) in the strong lensing regime. We show that in general, the observed polarization field can be…

天体物理学 · 物理学 2009-10-31 Ue-Li Pen

Model compression techniques allow to significantly reduce the computational cost associated with data processing by deep neural networks with only a minor decrease in average accuracy. Simultaneously, reducing the model size may have a…

机器学习 · 计算机科学 2021-09-28 Sebastian Cygert , Andrzej Czyżewski

Probabilistic smoothing is a standard tool for global optimization, but existing methods rely on Gaussian kernels and specific transforms, often resulting in strong hyperparameter sensitivity and limited robustness. We propose a general…

机器学习 · 计算机科学 2026-05-27 Kukyoung Jang , Taehyun Cho , Junrui Zhang , Ping Xu , Kyungjae Lee

This paper introduces the first minimal solvers that jointly estimate lens distortion and affine rectification from repetitions of rigidly transformed coplanar local features. The proposed solvers incorporate lens distortion into the camera…

计算机视觉与模式识别 · 计算机科学 2018-12-03 James Pritts , Zuzana Kukelova , Viktor Larsson , Ondrej Chum

Recently, neural network (NN)-based image compression studies have actively been made and has shown impressive performance in comparison to traditional methods. However, most of the works have focused on non-scalable image compression…

图像与视频处理 · 电气工程与系统科学 2026-01-06 Jongmin Park , Jooyoung Lee , Munchurl Kim

We develop an algorithm for the reconstruction of the two-dimensional mass distribution of a gravitational lens from the observable distortion of background galaxies. From the measured reduced shear, the lens mapping is obtained, from which…

天体物理学 · 物理学 2009-10-31 Tarun Deep Saini , Somak Raychaudhury

Although scaling laws and many empirical results suggest that increasing the size of Vision Transformers often improves performance, model accuracy and training behavior are not always monotonically increasing with scale. Focusing on…

计算机视觉与模式识别 · 计算机科学 2025-12-02 Anantha Padmanaban Krishna Kumar

Recent semi-dense image matching methods have achieved remarkable success, but two long-standing issues still impair their performance. At the coarse stage, the over-exclusion issue of their mutual nearest neighbor (MNN) matching layer…

计算机视觉与模式识别 · 计算机科学 2026-04-09 Ke Jin , Jiming Chen , Qi Ye

Deep neural networks give state-of-the-art accuracy for reconstructing images from few and noisy measurements, a problem arising for example in accelerated magnetic resonance imaging (MRI). However, recent works have raised concerns that…

图像与视频处理 · 电气工程与系统科学 2021-06-14 Mohammad Zalbagi Darestani , Akshay S. Chaudhari , Reinhard Heckel