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Increasing the degree of digitisation and automation in the concrete production process can play a crucial role in reducing the CO$_2$ emissions that are associated with the production of concrete. In this paper, a method is presented that…

Computer Vision and Pattern Recognition · Computer Science 2024-04-16 Max Meyer , Amadeus Langer , Max Mehltretter , Dries Beyer , Max Coenen , Tobias Schack , Michael Haist , Christian Heipke

We propose a self-supervised visual learning method by predicting the variable playback speeds of a video. Without semantic labels, we learn the spatio-temporal visual representation of the video by leveraging the variations in the visual…

Computer Vision and Pattern Recognition · Computer Science 2021-06-02 Hyeon Cho , Taehoon Kim , Hyung Jin Chang , Wonjun Hwang

Recent endeavors aimed at forecasting future traffic flow states through deep learning encounter various challenges and yield diverse outcomes. A notable obstacle arises from the substantial data requirements of deep learning models, a…

Machine Learning · Computer Science 2024-04-02 Zhaohui Yang , Kshitij Jerath

Automatic blood vessel extraction from 3D medical images is crucial for vascular disease diagnoses. Existing methods based on convolutional neural networks (CNNs) may suffer from discontinuities of extracted vessels when segmenting such…

Image and Video Processing · Electrical Eng. & Systems 2020-12-15 Jiafa He , Chengwei Pan , Can Yang , Ming Zhang , Yang Wang , Xiaowei Zhou , Yizhou Yu

In this paper, Physics Informed Neural Network (PINN) is explored in order to obtain flow predictions near the wall region accurately with measurements (or sampling points) away from the wall. Often, in fluid mechanics experiments, it is…

Fluid Dynamics · Physics 2022-04-08 Vinothkumar Sekar , Qinghua Jiang , Chang Shu , Boo Cheong Khoo

Porous media is widely distributed in nature, found in environments such as soil, rock formations, and plant tissues, and is crucial in applications like subsurface oil and gas extraction, medical drug delivery, and filtration systems.…

Geophysics · Physics 2025-01-03 Qingqi Zhao , Xiaoxue Han , Ruichang Guo , Cheng Chen

We present a general and flexible approximation model for near real-time prediction of steady turbulent flow in a 3D domain based on residual Convolutional Neural Networks (CNNs). This approach can provide immediate feedback for real-time…

Graphics · Computer Science 2019-12-05 Josef Musil , Jakub Knir , Athanasios Vitsas , Irene Gallou

In this work, we propose a framework whereby flow imaging data is leveraged to extract relevant information from flowfield visualizations. To this end, a vision transformer (ViT) model is developed to predict the unsteady pressure…

Fluid Dynamics · Physics 2023-05-10 Renato F. Miotto , William R. Wolf

Estimation of the initial state of turbulent channel flow from limited data is investigated using an adjoint-variational approach. The data are generated from a reference direct numerical simulation (DNS) which is sub-sampled at different…

Fluid Dynamics · Physics 2021-07-01 Mengze Wang , Tamer A. Zaki

Streamlined weirs which are a nature-inspired type of weir have gained tremendous attention among hydraulic engineers, mainly owing to their established performance with high discharge coefficients. Computational fluid dynamics (CFD) is…

Machine Learning · Computer Science 2022-04-13 Weibin Chen , Danial Sharifrazi , Guoxi Liang , Shahab S. Band , Kwok Wing Chau , Amir Mosavi

Accurate prediction of cerebral blood flow is essential for the diagnosis and treatment of cerebrovascular diseases. Traditional computational methods, however, often incur significant computational costs, limiting their practicality in…

Image and Video Processing · Electrical Eng. & Systems 2024-11-28 Seungyeon Kim , Wheesung Lee , Sung-Ho Ahn , Do-Eun Lee , Tae-Rin Lee

In autonomous Vehicles technology Image segmentation was a major problem in visual perception. This image segmentation process is mainly used in medical applications. Here we adopted an image segmentation process to visual perception tasks…

Computer Vision and Pattern Recognition · Computer Science 2020-11-17 Tirumalapudi Raviteja , Rajay Vedaraj . I. S

This paper employs an input-output based approach to analyze convective velocities and the transport of fluctuations in turbulent channel flows. The convective velocity for a fluctuating quantity associated with streamwise-spanwise…

Fluid Dynamics · Physics 2021-11-16 Chang Liu , Dennice F. Gayme

The prediction of salient areas in images has been traditionally addressed with hand-crafted features based on neuroscience principles. This paper, however, addresses the problem with a completely data-driven approach by training a…

Computer Vision and Pattern Recognition · Computer Science 2016-03-03 Junting Pan , Kevin McGuinness , Elisa Sayrol , Noel O'Connor , Xavier Giro-i-Nieto

We have recently developed an algorithm for vector field visualization with oriented streamlines, able to depict the flow directions everywhere in a dense vector field and the sense of the local orientations. The algorithm has useful…

Graphics · Computer Science 2007-05-23 A. Sparavigna , B. Montrucchio

Understanding the influence of surface roughness on drag forces remains a significant challenge in fluid dynamics. This paper presents a convolutional neural network (CNN) that predicts drag solely by the topography of rough surfaces and is…

This paper provides an extensive study on the availability of image representations based on convolutional networks (ConvNets) for the task of visual instance retrieval. Besides the choice of convolutional layers, we present an efficient…

Computer Vision and Pattern Recognition · Computer Science 2016-05-10 Ali Sharif Razavian , Josephine Sullivan , Stefan Carlsson , Atsuto Maki

Scene flow estimation is a crucial component in the development of autonomous driving and 3D robotics, providing valuable information for environment perception and navigation. Despite the advantages of learning-based scene flow estimation…

Computer Vision and Pattern Recognition · Computer Science 2024-01-08 Rahul Ahuja , Chris Baker , Wilko Schwarting

This paper presents a motorcycle classification system for urban scenarios using Convolutional Neural Network (CNN). Significant results on image classification has been achieved using CNNs at the expense of a high computational cost for…

Computer Vision and Pattern Recognition · Computer Science 2018-08-29 Jorge E. Espinosa , Sergio A. Velastin , John W. Branch

The dynamics of droplet collisions in microchannels are inherently complex, governed by multiple interdependent physical and geometric factors. Understanding and predicting the outcomes of these collisions-whether coalescence, reverse-back,…

Fluid Dynamics · Physics 2024-11-12 SM Abdullah Al Mamun , Samaneh Farokhirad
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