Pomegranate Fruit Quality Assessment Using Machine Intelligence and Wavelet Features

Abstract

Quality assessment is an important concern in the post-harvest marketing of fruits. Manual quality assessment of pomegranate fruits poses various problems because of human operators. In the present paper, an efficient machine vision system is designed and implemented in order to assess the quality of pomegranate fruits. The main objectives of the present study are (1) to adopt a best pre-processing module, (2) to select best class of features and (3) to develop an efficient machine learning technique for quality assessment of pomegranates. The sample images of pomegranate fruits are captured using a custom-made image acquisition system. Two sets of features, namely, spatial domain feature set and wavelet feature set are extracted for all of the sample images. Experiments are conducted by training both artificial neural networks (ANNs) and support vector machines (SVMs) using both sets of features. The results of the experiments illustrated that ANNs outperform SVMs with a difference in the accuracy of 12.65%. Further, the selection of wavelet featureset for training yielded more accurate results against spatial domain feature set.Key words: Pomegranate quality assessment, wavelet features for fruit quality analysis, machine intelligence in pomegranate quality assessment, ANN for fruit quality assessment

A Literature Review on Machine Vision based Approaches for Ripeness Detection of Fruits

“…Quality assessment is the main issue arising in post-harvesting of fruits and vegetables. Kumar et al [5] designed and implemented a vision based machine learning system for quality assessment. A custom-made image acquisition system is used for capturing sample images of pomegranate fruits.…”

“…Kumar, Arun, Vijay S. Rajpurohit, and Bhairu J. Jirage. [5] Spatial domain features and wavelet features were extracted for training.…”