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Wood is a volumetric material with a very large appearance gamut that is further enlarged by numerous finishing techniques. Computer graphics has made considerable progress in creating sophisticated and flexible appearance models that allow…

Graphics · Computer Science 2025-10-03 Thomas K. Nindel , Mohcen Hafidi , Tomáš Iser , Alexander Wilkie

Deep Convolutional Neural Networks (DCNNs) are capable of obtaining powerful image representations, which have attracted great attentions in image recognition. However, they are limited in modeling orientation transformation by the internal…

Computer Vision and Pattern Recognition · Computer Science 2021-02-03 Yalan Qin , Guorui Feng , Hanzhou Wu , Yanli Ren , Xinpeng Zhang

One of the major goals of tomorrow's agriculture is to increase agricultural productivity but above all the quality of production while significantly reducing the use of inputs. Meeting this goal is a real scientific and technological…

Image and Video Processing · Electrical Eng. & Systems 2020-05-14 Mohamed Kerkech , Adel Hafiane , Raphael Canals

Breast tissue segmentation into dense and fat tissue is important for determining the breast density in mammograms. Knowing the breast density is important both in diagnostic and computer-aided detection applications. There are many…

Computer Vision and Pattern Recognition · Computer Science 2013-10-02 Mario Muštra , Mislav Grgić

Modern scientific and technological advances allow botanists to use computer vision-based approaches for plant identification tasks. These approaches have their own challenges. Leaf classification is a computer-vision task performed for the…

Computer Vision and Pattern Recognition · Computer Science 2022-08-19 Ali Beikmohammadi , Karim Faez , Ali Motallebi

This paper studies a novel discriminative part-based model to represent and recognize object shapes with an "And-Or graph". We define this model consisting of three layers: the leaf-nodes with collaborative edges for localizing local parts,…

Computer Vision and Pattern Recognition · Computer Science 2015-02-04 Xiaolong Wang , Liang Lin

We propose a novel tree classification system called Treelogy, that fuses deep representations with hand-crafted features obtained from leaf images to perform leaf-based plant classification. Key to this system are segmentation of the leaf…

Computer Vision and Pattern Recognition · Computer Science 2017-01-31 İlke Çuğu , Eren Şener , Çağrı Erciyes , Burak Balcı , Emre Akın , Itır Önal , Ahmet Oğuz Akyüz

Image segmentation of touching objects plays a key role in providing accurate classification for computer vision technologies. A new line profile based imaging segmentation algorithm has been developed to provide a robust and accurate…

Computer Vision and Pattern Recognition · Computer Science 2017-08-07 Ali Mahdi , Jun Qin

Retinal vessel segmentation plays a vital role in analyzing fundus images for the diagnosis of systemic and ocular diseases. Building on this, classifying segmented vessels into arteries and veins (A/V) further enables the extraction of…

Image and Video Processing · Electrical Eng. & Systems 2025-08-07 Shuang Zeng , Chee Hong Lee , Kaiwen Li , Boxu Xie , Ourui Fu , Hangzhou He , Lei Zhu , Yanye Lu , Fangxiao Cheng

Automatic lung organ segmentation on CT images is crucial for lung disease diagnosis. However, the unlimited voxel values and class imbalance of lung organs can lead to false-negative/positive and leakage issues in advanced methods.…

Image and Video Processing · Electrical Eng. & Systems 2024-07-02 Sheng Zhang , Yang Nan , Yingying Fang , Shiyi Wang , Xiaodan Xing , Zhifan Gao , Guang Yang

Phylogenetic trees are leaf-labelled trees used to model the evolution of species. In practice it is not uncommon to obtain two topologically distinct trees for the same set of species, and this motivates the use of distance measures to…

Data Structures and Algorithms · Computer Science 2026-03-24 David Mestel , Steven Chaplick , Steven Kelk , Ruben Meuwese

Recognition of handwritten document aims at transforming document images into a machine understandable format. Handwritten document recognition is the most challenging area in the field of pattern recognition. It becomes more complex when a…

Computer Vision and Pattern Recognition · Computer Science 2020-06-02 Girma Negashe , Adane Mamuye

Image processing, computer vision, and pattern recognition have been playing a vital role in diverse agricultural applications, such as species detection, recognition, classification, identification, plant growth stages, plant disease…

Computer Vision and Pattern Recognition · Computer Science 2020-09-02 Asif Ashraf Patankar , Hyeonjoon Moon

Intelligent forest tree breeding has advanced plant phenotyping, yet existing research largely focuses on large-leaf agricultural crops, with limited attention to fine-grained leaf analysis of sapling trees in open-field environments.…

Computer Vision and Pattern Recognition · Computer Science 2026-03-05 Taige Luo , Junru Xie , Chenyang Fan , Bingrong Liu , Ruisheng Wang , Yang Shao , Sheng Xu , Lin Cao

Mechanical exfoliation of graphene and its identification by optical inspection is one of the milestones in condensed matter physics that sparked the field of 2D materials. Finding regions of interest from the entire sample space and…

Materials Science · Physics 2022-09-19 Woon Hyung Cho , Jiseon Shin , Young Duck Kim , George J. Jung

This paper presents an autonomous approach to tree detection and segmentation in high resolution airborne LiDAR that utilises state-of-the-art region-based CNN and 3D-CNN deep learning algorithms. If the number of training examples for a…

Robotics · Computer Science 2018-10-31 Lloyd Windrim , Mitch Bryson

Finger vein recognition has drawn increasing attention as one of the most popular and promising biometrics due to its high distinguishes ability, security and non-invasive procedure. The main idea of traditional schemes is to directly…

Computer Vision and Pattern Recognition · Computer Science 2021-01-22 Zhongxia Zhang , Mingwen Wang

We prove that finding a rooted subtree with at least $k$ leaves in a digraph is a fixed parameter tractable problem. A similar result holds for finding rooted spanning trees with many leaves in digraphs from a wide family $\cal L$ that…

Data Structures and Algorithms · Computer Science 2007-05-23 Noga Alon , Fedor Fomin , Gregory Gutin , Michael Krivelevich , Saket Saurabh

Leaf instance segmentation is a challenging multi-instance segmentation task, aiming to separate and delineate each leaf in an image of a plant. Accurate segmentation of each leaf is crucial for plant-related applications such as the…

Computer Vision and Pattern Recognition · Computer Science 2025-01-30 Feng Chen , Sotirios A. Tsaftaris , Mario Valerio Giuffrida

This work shows the use of a two-dimensional Gabor wavelets in image processing. Convolution with such a two-dimensional wavelet can be separated into two series of one-dimensional ones. The key idea of this work is to utilize a Gabor…

Computer Vision and Pattern Recognition · Computer Science 2016-05-05 David Barina