A real-time grading method of apples based on features extracted from defects

被引：157

作者：

Leemans, V ^{[1
]}

Destain, MF ^{[1
]}

机构：

[1] Gembloux Agr Univ, Unite Mecan & Construct, B-5030 Gembloux, Belgium

来源：

JOURNAL OF FOOD ENGINEERING | 2004年 / 61卷 / 01期

关键词：

grading; classification; machine vision; apples;

D O I：

10.1016/S0260-8774(03)00189-4

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

This paper presents a hierarchical grading method applied to Jonagold apples. Several images covering the whole surface of the fruits were acquired thanks to a prototype grading machine. These images were then segmented and the features of the defects were extracted. During a learning procedure, the objects were classified into clusters by k-mean clustering. The classification probabilities of the objects were summarised and on this basis the fruits were graded using quadratic discriminant analysis. The fruits were correctly graded with a rate of 73%. The errors were found having origins in the segmentation of the defects or for a particular wound, in a confusion with the calyx end. (C) 2003 Elsevier Ltd. All rights reserved.

引用

页码：83 / 89

页数：7

共 19 条

[1] GUEDALIA ID, 1997, P SENS NOND TEST INT, P232
[2] Heinemann P. H., 1995, Applied Engineering in Agriculture, V11, P901
[3] On-line fruit grading according to their external quality using machine vision
Leemans, V
Magein, H
Destain, MF
[J]. BIOSYSTEMS ENGINEERING, 2002, 83 (04) : 397 - 404
[4] Defect segmentation on 'Jonagold' apples using colour vision and a Bayesian classification method
Leemans, V
Magein, H
Destain, MF
[J]. COMPUTERS AND ELECTRONICS IN AGRICULTURE, 1999, 23 (01) : 43 - 53
[5] Defects segmentation on 'Golden Delicious' apples by using colour machine vision
Leemans, V
Magein, H
Destain, MF
[J]. COMPUTERS AND ELECTRONICS IN AGRICULTURE, 1998, 20 (02) : 117 - 130
[6] Quality fruit grading by colour machine vision: Defect recognition
Leemans, V
Destain, MF
Magein, H
[J]. PROCEEDINGS OF THE XXV INTERNATIONAL HORTICULTURAL CONGRESS, PT 7, 2000, (517): : 405 - 412
[7] Miller W. M., 1995, Applied Engineering in Agriculture, V11, P855
[8] MILLER WM, 1997, P SENS NOND TEST INT, P249
[9] MOLTO E, 2000, AGENG2000 AGR ENG 3
[10] MOLTO E, 1998, SPIE S PREC AGR BIOL

← 1 2 →