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Seismic imaging is the numerical process of creating a volumetric representation of the subsurface geological structures from elastic waves recorded at the surface of the Earth. As such, it is widely utilized in the energy and construction…

地球物理 · 物理学 2024-11-05 Juan Romero , Wolfgang Heidrich , Nick Luiken , Matteo Ravasi

Statistical properties of earthquakes are studied both by the analysis of real earthquake catalog of Japan and by numerical computer simulations of the spring-block model in both one and two dimensions. Particular attention is paid to the…

其他凝聚态物理 · 物理学 2012-01-27 Hikaru Kawamura

Texture recognition is one of the most important tasks in computer vision and, despite the recent success of learning-based approaches, there is still need for model-based solutions. This is especially the case when the amount of data…

计算机视觉与模式识别 · 计算机科学 2020-07-16 Joao Florindo , Konradin Metze

Natural images can be viewed as patchworks of different textures, where the local image statistics is roughly stationary within a small neighborhood but otherwise varies from region to region. In order to model this variability, we first…

计算机视觉与模式识别 · 计算机科学 2015-05-29 Niklas Ludtke , Debapriya Das , Lucas Theis , Matthias Bethge

Texture is a visual attribute largely used in many problems of image analysis. Currently, many methods that use learning techniques have been proposed for texture discrimination, achieving improved performance over previous handcrafted…

计算机视觉与模式识别 · 计算机科学 2020-08-19 Lucas C. Ribas , Leonardo F. S. Scabini , Jarbas Joaci de Mesquita Sá Junior , Odemir M. Bruno

We present a model-based feature extractor to describe neighborhoods around keypoints by finite expansion, estimating the spatially varying orientation by harmonic functions. The iso-curves of such functions are highly symmetric w.r.t. the…

计算机视觉与模式识别 · 计算机科学 2023-11-06 Anna Mikaelyan , Fernando Alonso-Fernandez , Josef Bigun

Colour and coarseness of skin are visually different. When image processing is involved in the skin analysis, it is important to quantitatively evaluate such differences using texture features. In this paper, we discuss a texture analysis…

计算机视觉与模式识别 · 计算机科学 2010-05-11 A. Sparavigna , R. Marazzato

Seismic traveltime tomography using transmission data is widely used to image the Earth's interior from global to local scales. In seismic imaging, it is used to obtain velocity models for subsequent depth-migration or full-waveform…

计算物理 · 物理学 2021-04-06 Umair bin Waheed , Tariq Alkhalifah , Ehsan Haghighat , Chao Song , Jean Virieux

This work builds on recent advances in foundation models in the language and image domains to explore similar approaches for seismic source characterization. We rely on an architecture called Barlow Twins, borrowed from an understanding of…

计算工程、金融与科学 · 计算机科学 2024-10-24 Lisa Linville , Chengping Chai , Nathan Marthindale , Jacob Smith , Scott Stewart , Asmeret Naugle

Autonomous fabrication systems are transforming construction and manufacturing, yet they remain vulnerable to print errors. Texture classification is a key component of computer vision systems that enable real-time monitoring and adjustment…

计算机视觉与模式识别 · 计算机科学 2025-04-15 Jeremiah Giordani

Textured meshes significantly enhance the realism and detail of objects by mapping intricate texture details onto the geometric structure of 3D models. This advancement is valuable across various applications, including entertainment,…

图形学 · 计算机科学 2024-12-12 Kaiwei Zhang , Dandan Zhu , Xiongkuo Min , Guangtao Zhai

Mathematical modeling of visual textures traces back to Julesz's intuition that texture perception in humans is based on local correlations between image features. An influential approach for texture analysis and generation generalizes this…

计算机视觉与模式识别 · 计算机科学 2026-05-21 Ludovica de Paolis , Fabio Anselmi , Alessio Ansuini , Eugenio Piasini

In this paper, a new texture descriptor based on the local neighborhood intensity difference is proposed for content based image retrieval (CBIR). For computation of texture features like Local Binary Pattern (LBP), the center pixel in a…

计算机视觉与模式识别 · 计算机科学 2018-07-03 Prithaj Banerjee , Ayan Kumar Bhunia , Avirup Bhattacharyya , Partha Pratim Roy , Subrahmanyam Murala

This article introduces the Stochastic Texture Difference method for analyzing data at prescribed spatial and value scales. This method relies on constrained random walks around each pixel, describing how nearby image values typically…

计算机视觉与模式识别 · 计算机科学 2015-10-06 Nicolas Brodu , Hussein Yahia

Methods based on local image features have recently shown promise for texture classification tasks, especially in the presence of large intra-class variation due to illumination, scale, and viewpoint changes. Inspired by the theories of…

计算机视觉与模式识别 · 计算机科学 2018-12-05 Swalpa Kumar Roy , Bhabatosh Chanda , Bidyut B. Chaudhuri , Dipak Kumar Ghosh , Shiv Ram Dubey

Identifying systematic patterns in seismicity that precede large earthquakes remains a central challenge in statistical seismology. In this work, we present a methodological framework for detecting spatiotemporal anomalies in seismicity…

地球物理 · 物理学 2026-02-16 Jonas Köhler , Wei Li , Johannes Faber , Georg Rümpker , Nishtha Srivastava

The creation of manipulated multimedia content involving human characters has reached in the last years unprecedented realism, calling for automated techniques to expose synthetically generated faces in images and videos. This work explores…

计算机视觉与模式识别 · 计算机科学 2020-07-31 Mattia Bonomi , Cecilia Pasquini , Giulia Boato

Noise is one of the major problems that hinder an effective texture analysis of disease in medical images, which may cause variability in the reported diagnosis. In this paper seven texture measurement methods (two wavelet, two model and…

计算机视觉与模式识别 · 计算机科学 2015-12-29 Omar Sultan Al-Kadi

This paper presents a new method for dynamic texture recognition based on spatiotemporal Gabor filters. Dynamic textures have emerged as a new field of investigation that extends the concept of self-similarity of texture image to the…

计算机视觉与模式识别 · 计算机科学 2012-01-18 Wesley Nunes Gonçalves , Bruno Brandoli Machado , Odemir Martinez Bruno

The camera captured images have various aspects to investigate. Generally, the emphasis of research depends on the interesting regions. Sometimes the focus could be on color segmentation, object detection or scene text analysis. The image…

计算机视觉与模式识别 · 计算机科学 2018-10-01 Saad Bin Ahmed , Saeeda Naz , Muhammad Imran Razzak , Rubiyah Yusof