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20 Results Found

  • Article
  • Open Access
1 Citations
6,127 Views
11 Pages

The Demands of Geometry on Color Vision

  • Dale Purves and
  • Chidambaram Yegappan

12 January 2017

While studies of human color vision have made enormous strides, an overarching rationale for the circular sense of color relationships generated by two classes of color opponent neurons and three cone types is still lacking. Here we suggest that colo...

  • Article
  • Open Access
8 Citations
2,540 Views
45 Pages

Aiming at the problem that the Osprey Optimization Algorithm (OOA) does not have high optimization accuracy and is prone to falling into local optimum, an Improved Osprey Optimization Algorithm Based on a Two-Color Complementary Mechanism for Global...

(This article belongs to the Special Issue Nature-Inspired Metaheuristic Optimization Algorithms 2024)
  • Article
  • Open Access
8 Citations
6,164 Views
15 Pages

3 July 2021

Graph theory is a powerful representation and problem-solving tool, but it is not included in present curriculum at school levels. In this study we perform a didactic proposal based in graph theory, to provide students useful and motivational tools f...

(This article belongs to the Special Issue Research on Powerful Ideas for Enriching School Mathematical Learning)
  • Article
  • Open Access
12 Citations
5,535 Views
25 Pages

24 December 2019

Three-dimensional (3D) point cloud registration is an important step in three-dimensional (3D) model reconstruction or 3D mapping. Currently, there are many methods for point cloud registration, but these methods are not able to simultaneously solve...

(This article belongs to the Special Issue Microsoft Kinect Sensors: Innovative Solutions, Applications, and Validations)
  • Article
  • Open Access
27 Citations
6,804 Views
16 Pages

Vegetable Size Measurement Based on Stereo Camera and Keypoints Detection

  • Bowen Zheng,
  • Guiling Sun,
  • Zhaonan Meng and
  • Ruili Nan

18 February 2022

This work focuses on the problem of non-contact measurement for vegetables in agricultural automation. The application of computer vision in assisted agricultural production significantly improves work efficiency due to the rapid development of infor...

(This article belongs to the Section Smart Agriculture)
  • Article
  • Open Access
271 Views
29 Pages

PersimmonDet: A Collaborative Framework for Detecting Near-Color and Occluded Fruits in Orchards

  • Shilin Li,
  • Sheng Gao,
  • Wenyang Zang,
  • Chaoyi Wu,
  • Shujuan Zhang and
  • Fuzhong Li

18 September 2026

The automated detection of persimmons in orchards is hindered by two primary factors: fruits of the same cultivar possess nearly identical color, causing adjacent instances to be easily merged, and heavy occlusion by leaves and stems hides large port...

(This article belongs to the Section Artificial Intelligence and Digital Agriculture)
  • Article
  • Open Access
48 Citations
5,514 Views
17 Pages

3 August 2019

Aiming at the problems of complex texture, variable interference factors and large sample acquisition in surface defect detection, a generic method of automated surface defect detection based on a bilinear model was proposed. To realize the automatic...

(This article belongs to the Special Issue New Industry 4.0 Advances in Industrial IoT and Visual Computing for Manufacturing Processes)
  • Article
  • Open Access
18 Citations
5,512 Views
19 Pages

29 January 2022

Pedestrian detection is vitally important in many computer vision tasks but still suffers from some problems, such as illumination and occlusion if only the RGB image is exploited, especially in outdoor and long-range scenes. Combining RGB with depth...

(This article belongs to the Special Issue Deep Learning in Remote Sensing Application)
  • Article
  • Open Access
4 Citations
3,307 Views
16 Pages

21 August 2023

Photographs taken under harsh ambient lighting can suffer from a number of image quality degradation phenomena due to insufficient exposure. These include reduced brightness, loss of transfer information, noise, and color distortion. In order to solv...

(This article belongs to the Special Issue AI-Driven Sensing for Image Processing and Recognition)
  • Article
  • Open Access
3 Citations
1,592 Views
12 Pages

18 October 2023

In computational color constancy, regressing illumination is one of the most common approaches to manifesting the original color appearance of an object in a real-life scene. However, this approach struggles with the challenge of accuracy arising fro...

(This article belongs to the Section Sensing and Imaging)
  • Article
  • Open Access
14 Citations
3,461 Views
14 Pages

17 October 2022

Objective: The shallow underwater environment is complex, with problems of color shift, uneven illumination, blurring, and distortion in the imaging process. These scenes are very unfavorable for the reasoning of the detection network. Additionally,...

(This article belongs to the Topic Artificial Intelligence in Smart Industrial Diagnostics and Manufacturing)
  • Article
  • Open Access
7 Citations
4,332 Views
25 Pages

9 December 2022

The article discusses the problem of visualization of complex multiparameter systems, defined by datasets on their structure, functional structure, and activity in the form of complex graphs and transition of traditional representation of the data ac...

(This article belongs to the Section Combinatorial Optimization, Graph, and Network Algorithms)
  • Article
  • Open Access
2 Citations
2,678 Views
15 Pages

2 September 2021

Magnetic resonance (MR) images can detect small pathological tissue with the size of 3–5 image pixels at an early stage, which is of great significance in the localization of pathological lesions and the diagnosis of disease. High-resolution MR image...

  • Article
  • Open Access
44 Citations
6,917 Views
15 Pages

9 May 2020

Wise soil management requires detailed soil information, but conventional soil class mapping in a rather coarse spatial resolution cannot meet the demand for precision agriculture. With the advantages of non-destructiveness, rapid cost-efficiency, an...

(This article belongs to the Special Issue Estimation and Mapping of Soil Properties Based on Multi-Source Data Fusion)
  • Article
  • Open Access
12 Citations
3,566 Views
19 Pages

14 January 2025

This study addresses the challenges of tomato maturity recognition in natural environments, such as occlusion caused by branches and leaves, and the difficulty in detecting stacked fruits. To overcome these issues, we propose a novel YOLOv8n-CA metho...

(This article belongs to the Section Precision and Digital Agriculture)
  • Article
  • Open Access
67 Citations
10,117 Views
16 Pages

Tomato Maturity Recognition Model Based on Improved YOLOv5 in Greenhouse

  • Renzhi Li,
  • Zijing Ji,
  • Shikang Hu,
  • Xiaodong Huang,
  • Jiali Yang and
  • Wenfeng Li

20 February 2023

Due to the dense distribution of tomato fruit with similar morphologies and colors, it is difficult to recognize the maturity stages when the tomato fruit is harvested. In this study, a tomato maturity recognition model, YOLOv5s-tomato, is proposed b...

(This article belongs to the Topic Applications of Big Data and Machine Learning in Smart Agriculture)
  • Article
  • Open Access
5 Citations
7,338 Views
26 Pages

A Study in Scarlet: Integrative Taxonomy of the Spider Genus Loureedia (Araneae: Eresidae)

  • Tamás Szűts,
  • Krisztián Szabó,
  • Alireza Zamani,
  • Martin Forman,
  • Jeremy Miller,
  • Pierre Oger,
  • Magali Fabregat,
  • Gábor Kovács and
  • János Gál

8 February 2023

The eresid spider genus Loureedia (Miller et al., 2012) was described a decade ago, despite its type species being described in the mid-19th century, which illuminates the difficulties in obtaining specimens. The genus was initially described as mono...

(This article belongs to the Special Issue Diversity in 2022)
  • Article
  • Open Access
1 Citations
1,861 Views
70 Pages

We present a spectral-action framework for connecting generalized trace dynamics (GTD) to the structural form of the low-energy action of the observed Universe. The fundamental single-STM-atom Lagrangian is decomposed exactly into a purely bosonic se...

(This article belongs to the Section Gravitation)
  • Article
  • Open Access
38 Citations
9,978 Views
16 Pages

Vectorization of Floor Plans Based on EdgeGAN

  • Shuai Dong,
  • Wei Wang,
  • Wensheng Li and
  • Kun Zou

A 2D floor plan (FP) often contains structural, decorative, and functional elements and annotations. Vectorization of floor plans (VFP) is an object detection task that involves the localization and recognition of different structural primitives in 2...

(This article belongs to the Special Issue Machine Learning and Accelerator Technology)
  • Article
  • Open Access
23 Citations
9,448 Views
34 Pages

RETRACTED: Exploring Groundwater Quality Assessment: A Geostatistical and Integrated Water Quality Indices Perspective

  • Muhammad Umer Masood,
  • Muhammad Rashid,
  • Saif Haider,
  • Iram Naz,
  • Chaitanya B. Pande,
  • Salim Heddam,
  • Fahad Alshehri,
  • Ismail Elkhrachy,
  • Amimul Ahsan and
  • Saad Sh. Sammen

29 December 2023

Groundwater is an important source of freshwater. At the same time, anthropogenic activities, in particular, industrialization, urbanization, population growth, and excessive application of fertilizers, are some of the major reasons for groundwater q...

(This article belongs to the Special Issue Water, Waste and Wastewater: Treatment and Resource Recovery, 2nd Edition)