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Analyzation of Sensor Data with the Aid of Deep Learning

A special issue of Sensors (ISSN 1424-8220). This special issue belongs to the section "Intelligent Sensors".

Deadline for manuscript submissions: 31 January 2025 | Viewed by 888

Special Issue Editors


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Guest Editor
1. Department of IT Systems and Networks, University of Debrecen, 4028 Debrecen, Hungary
2. Department of IT, Eszterházy Károly Catholic University, 3300 Eger, Hungary
Interests: AI in embedded systems; AI for computer vision
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Guest Editor
Department of Electric, Electronic and Computer Engineering, Technical University of Cluj-Napoca, Baia Mare 430122, Romania
Interests: field-programmable gate arrays; digital design; ambient assisted living
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

The appearance of deep learning caused a great breakthrough in several research fields. The idea of using deep networks with new types of layers was very interesting to researchers because these techniques can automatically build high-level representations of the raw information.

The recent developments in hardware technology resulted in the lightweight deep models being hardware implementable on various embedded systems frameworks. Therefore, the data that come from sensors can be analyzed not just on the “server” side but also in the edge (or sensing) device.

The aim of this Special Issue is to encourage researchers to present original research results on the analyzation of sensor data with the aid of deep learning.

Dr. József Sütő
Prof. Dr. Stefan Oniga
Guest Editors

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Keywords

  • remote sensing data
  • deep learning
  • object detection
  • embedded systems
  • sensor networks

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Published Papers (1 paper)

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Research

12 pages, 3459 KiB  
Article
Using Data Augmentation to Improve the Generalization Capability of an Object Detector on Remote-Sensed Insect Trap Images
by Jozsef Suto
Sensors 2024, 24(14), 4502; https://doi.org/10.3390/s24144502 - 11 Jul 2024
Viewed by 617
Abstract
Traditionally, monitoring insect populations involved the use of externally placed sticky paper traps, which were periodically inspected by a human operator. To automate this process, a specialized sensing device and an accurate model for detecting and counting insect pests are essential. Despite considerable [...] Read more.
Traditionally, monitoring insect populations involved the use of externally placed sticky paper traps, which were periodically inspected by a human operator. To automate this process, a specialized sensing device and an accurate model for detecting and counting insect pests are essential. Despite considerable progress in insect pest detector models, their practical application is hindered by the shortage of insect trap images. To attenuate the “lack of data” issue, the literature proposes data augmentation. However, our knowledge about data augmentation is still quite limited, especially in the field of insect pest detection. The aim of this experimental study was to investigate the effect of several widely used augmentation techniques and their combinations on remote-sensed trap images with the YOLOv5 (small) object detector model. This study was carried out systematically on two different datasets starting from the single geometric and photometric transformation toward their combinations. Our results show that the model’s mean average precision value (mAP50) could be increased from 0.844 to 0.992 and from 0.421 to 0.727 on the two datasets using the appropriate augmentation methods combination. In addition, this study also points out that the integration of photometric image transformations into the mosaic augmentation can be more efficient than the native combination of augmentation techniques because this approach further improved the model’s mAP50 values to 0.999 and 0.756 on the two test sets, respectively. Full article
(This article belongs to the Special Issue Analyzation of Sensor Data with the Aid of Deep Learning)
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