Classification of Hass avocado (persea americana mill) in terms of its ripening via hyperspectral images
Journal Title: TecnoLógicas - Year 2019, Vol 22, Issue 45
Abstract
The use of non-invasive and low-cost methodologies allows the monitoring of fruit ripening and quality control, without affecting the product under study. In particular, the Hass avocado is of high importance for the agricultural sector in Colombia because the country is strongly promoting its export, which has generated an expansion in the number of acres cultivated with this fruit. Therefore, this paper aims to study and analyze the ripening state of Hass avocados through non-invasive hyperspectral images, using principal component analysis (PCA) along with spectral vegetation indices, such as the normalized difference vegetation index (NDVI), ratio vegetation index (RVI), photochemical reflectance index (PRI), colorimetry analysis in the CIE L*a*b* color space, and color index triangular greenness index (TGI). In particular, this work conducts a quantitative analysis of the ripening process of a population of 7 Hass avocados over 10 days. The avocados under study were classified into three categories: unripe, close-to-ripe, and ripe. The obtained results show that it is possible to characterize the ripening state of avocados through hyperspectral images using a non-invasive acquisition system. Further, it is possible to know the post-harvest ripening state of the avocado at any given day.
Authors and Affiliations
Jhon Pinto, Hoover Rueda-Chacón, Henry Arguello
Keywords
Related Articles
- EP ID EP672771
- DOI 10.22430/22565337.1232
- Views 133
- Downloads 0
Electric vehicle routing problem with backhauls considering the location of charging stations and the operation of the electric power distribution system
Logistics companies are largely encouraged to make greener their operations through an efficient solution with electric vehicles (EVs). However, the driving range is one of the limiting aspects for the introduction of EV...
Methodology for determining angular displacement in three-phase transformers
This paper presents methodology for determining angular displacement (connections or vector group (colloquial)) in three-phase transformers. The proposed methodology is useful to determin...
Design, construction and characterization of pneumatic system for measurement of roughness
This article aims to present the results obtained from the design, construction and characterization of a pneumatic flapper-nozzle amplifier, employed in the measurement of average surface roughness. In the construction...
Feature extraction based on time-singularity multifractal spectrum distribution in intracardiac atrial fibrillation signals
Non-linear analysis of electrograms (EGM) has been proposed as a tool to detect critical conduction sites (e.g., rotors vortex, multiple wavefronts) in atrial fibrillation (AF). Likewise, studies have...
An adaptive algorithm for overcurrent protections on the case study IEEE9
A proper coordination of electrical protections is fundamental in electric power systems, with the aim of avoiding unexpected disconnections. These disconnections can produce problems in the operation of the power system...