Deteksi Ketersediaan Slot Parkir Berbasis Pengolahan Citra Digital Menggunakan Metode Histogram of Oriented Gradients dan Support Vector Machine

Abstract

Abstrak Penelitian ini bertujuan untuk mengimplementasikan metode berbasiskan pengolahan citra digital untuk memproses status slot parkir pada area parkir mobil dengan menggunakan metode ekstraksi ciri HOG (Histogram of Oriented Gradients) pada setiap region area parkir. Hasil ekstraksi ciri diklasifikasikan menggunakan SVM (Support Vector Machine) dengan membandingkan kernel Linear, RBF (Radial Basis Function), Poly, dan Sigmoid. Hasil klasifikasi SVM dianalisis menggunakan confusion matrix melalui parameter: accuracy, specificity, sensitivity, dan precision. Pada pengujian data utama dengan kernel Linear didapatkan akurasi kondisi sunny 98.0%, rainy 98.8%, dan cloudy 99.2%. Pengujian kernel Poly didapatkan akurasi kondisi sunny 99.2%, rainy 98.9%, dan cloudy 99.4%. Pengujian RBF kernel didapatkan akurasi kondisi sunny 97.9%, rainy 98.7%, dan cloudy 99.6%. Pada pengujian data tambahan, didapatkan akurasi menggunakan kernel Linear sebesar 97.7%, kernel RBF sebesar 97.9%, dan kernel Poly sebesar 97.4%. Pengujian kernel Sigmoid menggunakan default grid tidak didapatkan model yang optimal melalui validasi sehingga tidak dapat digunakan dalam pengujian. Kata Kunci-slot parkir, ekstraksi fitur, histogram of oriented gradient, klasifikasi, support vector machine, kernel. Abstract This research aims to implement method based on digital image processing to inform the status of parking slots at the car parking area by using a feature extraction HOG (Histogram of Oriented Gradients) method in every region of the parking area. Feature extraction results are classified using SVM (Support Vector Machine) by comparing the Linear, RBF (Radial Basis Function), Poly, and Sigmoid kernels. SVM classification results were analyzed using the confusion matrix with accuracy, specificity, sensitivity, and precision parameters. In terms of accuracy, system obtained with Linear kernel in sunny conditions shows 98.0% accuracy; rainy 98.8% accuracy; cloudy 99.2% accuracy. Obtained accuracy using Poly kernel test in sunny conditions shows 99.2%; rainy 98.9%; cloudy 99.4%. Obtained accuracy using RBF kernel in sunny conditions shows 97.9%; rainy 98.7%; cloudy 99.6%. In terms of accuracy using additional data testing obtained with Linear kernel shows accuracy of 97.7%; RBF kernel 97.9% accuracy; Poly kernel 97.4% accuracy. Sigmoid kernel testing can't be used because the optimal model did not obtained by using default grid.