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Porous materials are widely used in different applications, in particular they are used to create various filters. Their quality depends on parameters that characterize the internal structure such as porosity, permeability and so on.…

Computer Vision and Pattern Recognition · Computer Science 2019-10-18 V. Kokhan , M. Grigoriev , A. Buzmakov , V. Uvarov , A. Ingacheva , E. Shvets , M. Chukalina

Text line segmentation is one of the pre-stages of modern optical character recognition systems. The algorithmic approach proposed by this paper has been designed for this exact purpose. Its main characteristic is the combination of two…

Computer Vision and Pattern Recognition · Computer Science 2023-06-22 Pit Schneider

In order to identify and prevent tea leaf diseases effectively, convolution neural network (CNN) was used to realize the image recognition of tea disease leaves. Firstly, image segmentation and data enhancement are used to preprocess the…

Computer Vision and Pattern Recognition · Computer Science 2019-01-10 Xiaoxiao Sun , Shaomin Mu , Yongyu Xu , Zhihao Cao , Tingting Su

Grain Boundaries govern many properties of polycrystalline materials, including the vast majority of engineering materials. Evolutionary algorithm can be applied to predict the grain boundary structures in different systems. However, the…

Materials Science · Physics 2017-10-04 Bingxi Li

The article describes a system for image recognition using deep convolutional neural networks. Modified network architecture is proposed that focuses on improving convergence and reducing training complexity. The filters in the first layer…

Computer Vision and Pattern Recognition · Computer Science 2019-05-01 Andrey Alekseev , Anatoly Bobe

As an essential prerequisite task in image-based plant phenotyping, leaf segmentation has garnered increasing attention in recent years. While self-supervised learning is emerging as an effective alternative to various computer vision…

Computer Vision and Pattern Recognition · Computer Science 2022-03-31 Xufeng Lin , Chang-Tsun Li , Scott Adams , Abbas Kouzani , Richard Jiang , Ligang He , Yongjian Hu , Michael Vernon , Egan Doeven , Lawrence Webb , Todd Mcclellan , Adam Guskic

The Rooted Maximum Leaf Outbranching problem consists in finding a spanning directed tree rooted at some prescribed vertex of a digraph with the maximum number of leaves. Its parameterized version asks if there exists such a tree with at…

Discrete Mathematics · Computer Science 2009-04-20 Jean Daligault , Stephan Thomasse

Structural variants compose the majority of human genetic variation, but are difficult to assess using current genomic sequencing technologies. Optical mapping technologies, which measure the size of chromosomal fragments between labeled…

Quantitative Methods · Quantitative Biology 2019-10-10 Weiwei Li , Jan Hannig , Corbin Jones

Brain fiber tracts are widely used in studying brain diseases, which may lead to a better understanding of how disease affects the brain. The segmentation of brain fiber tracts assumed enormous importance in disease analysis. In this paper,…

Neurons and Cognition · Quantitative Biology 2020-11-04 Chaoqing Xu , Guodao Sun , Ronghua Liang , Xiufang Xu

Segmenting the retinal vasculature entails a trade-off between how much of the overall vascular structure we identify vs. how precisely we segment individual vessels. In particular, state-of-the-art methods tend to under-segment faint…

Computer Vision and Pattern Recognition · Computer Science 2019-03-28 Aashis Khanal , Rolando Estrada

We introduce a technique to filter out complex data-sets by extracting a subgraph of representative links. Such a filtering can be tuned up to any desired level by controlling the genus of the resulting graph. We show that this technique is…

Disordered Systems and Neural Networks · Physics 2007-05-23 M. Tumminello , T. Aste , T. Di Matteo , R. N. Mantegna

Automating the extraction and quantification of features from three-dimensional (3-D) image stacks is a critical task for advancing computer vision research. The union of 3-D image acquisition and analysis enables the quantification of…

Computer Vision and Pattern Recognition · Computer Science 2017-04-11 P. Saponaro , W. Treible , A. Kolagunda , S. Rhein , J. Caplan , C. Kambhamettu , R. Wisser

Statistical methods such as sequential Monte Carlo Methods were proposed for detection, segmentation and tracking of objects in digital images. A similar approach, called Shape Particle Filters was introduced for the segmentation of…

Computer Vision and Pattern Recognition · Computer Science 2015-06-23 Z. Bardosi , D. Granata , G. Lugos , A. P. Tafti , S. Saxena

Grapevine winter pruning is a labor-intensive and repetitive process that significantly influences the quality and quantity of the grape harvest and produced wine of the following season. It requires a careful and expert detection of the…

Computer Vision and Pattern Recognition · Computer Science 2024-08-30 Michael Adlerstein , Angelo Bratta , João Carlos Virgolino Soares , Giovanni Dessy , Miguel Fernandes , Matteo Gatti , Claudio Semini

Detecting the edges of objects within images is critical for quality image processing. We present an edge-detecting technique that uses morphological amoebas that adjust their shape based on variation in image contours. We evaluate the…

Computer Vision and Pattern Recognition · Computer Science 2011-08-23 Won Yeol Lee , Young Woo Kim , Se Yun Kim , Jae Young Lim , Dong Hoon Lim

The number of leaves a plant has is one of the key traits (phenotypes) describing its development and growth. Here, we propose an automated, deep learning based approach for counting leaves in model rosette plants. While state-of-the-art…

Computer Vision and Pattern Recognition · Computer Science 2017-09-06 Andrei Dobrescu , Mario Valerio Giuffrida , Sotirios A Tsaftaris

Up-to-date catalogs of the urban tree population are important for municipalities to monitor and improve quality of life in cities. Despite much research on automation of tree mapping, mainly relying on dedicated airborne LiDAR or…

Computer Vision and Pattern Recognition · Computer Science 2019-10-08 Steve Branson , Jan Dirk Wegner , David Hall , Nico Lang , Konrad Schindler , Pietro Perona

Plant phenotyping tasks such as leaf segmentation and counting are fundamental to the study of phenotypic traits. Since it is well-suited for these tasks, deep supervised learning has been prevalent in recent works proposing better…

Computer Vision and Pattern Recognition · Computer Science 2020-12-22 Douglas Pinto Sampaio Gomes , Lihong Zheng

The physical processes occurring in the presence of disorder: point defects, grain boundaries, etc. may have detrimental effects on the electronic properties of graphene. Here we present an approach to reveal the grain structure of graphene…

Objective Automatic artery/vein (A/V) segmentation from fundus images is required to track blood vessel changes occurring with many pathologies including retinopathy and cardiovascular pathologies. One of the clinical measures that…

Computer Vision and Pattern Recognition · Computer Science 2019-03-05 Fantin Girard , Conrad Kavalec , Farida Cheriet