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Journal : building of informatics technology and science

Stereo Camera-Based Motor Vehicle Dimension Measurement with Luxmeter-Based Light Intensity Detection Ageng Sudarma; Muhammad Iman Nur Hakim; Nurul Fitriani; Siti Shofiah; Nanang Okta Widiandaru
Building of Informatics, Technology and Science (BITS) Vol 8 No 1 (2026): June 2026
Publisher : Forum Kerjasama Pendidikan Tinggi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47065/bits.v8i1.10012

Abstract

Over Dimension and Over Loading (ODOL) vehicles require accurate and efficient dimension inspection systems to support transportation safety and regulatory compliance. This study proposes an automatic motor vehicle dimension measurement system based on stereo vision integrated with YOLOv8 object detection and luxmeter-based illumination monitoring. The system was developed using a Research and Development (R&D) approach involving stereo camera calibration, hardware-software integration, experimental testing, and validation against manual measurements. Two Logitech C270 USB cameras with a fixed 50 cm baseline were calibrated using a 9 × 6 checkerboard pattern and processed using OpenCV and Python. Vehicle and wheel objects were detected using YOLOv8 models with stereo disparity estimation performed using Semi-Global Block Matching (SGBM) and triangulation methods to calculate Overall Length (OAL), Front Overhang (FOH), Wheelbase (WB), Rear Overhang (ROH), and Overall Height (OAH). Environmental lighting conditions were monitored using a luxmeter under illumination ranges of 5,000-100,000 lux. Experimental results showed a stereo calibration success rate of 96% from 100 stereo image pairs. The developed system achieved average measurement accuracies of 98.58%, 98.92%, and 98.89% at testing distances of 7 m, 8 m, and 9 m, respectively, while the highest accuracy of 99.44% was obtained at the T_8M_LC configuration under stable illumination conditions. Operational efficiency analysis showed that the automatic measurement process, including image acquisition and computational processing, reduced total measurement time from 187 seconds in manual measurements to 5 seconds in the automated system, corresponding to an efficiency improvement of 97.32%. The results show that the proposed stereo vision system provides accurate, efficient, and lighting-robust vehicle dimension measurements suitable for automated motor vehicle inspection applications.
Co-Authors Aat Eska Fahmadi Aditya Prima F Ageng Sudarma Agnes Angi Dian Winei Ahmad Basuki Ainun Rahmawati Ambarita, Sihar Amin Zaki Aprianto, Rizal Ardi Azhar Nampira Ardi Azhar Nampira Arjuna, Kevin Asmoro, Langgeng Astiti Astiti Ayu, Brasie Pradana Sella Bunga Riska Azalia, Noni Gytha Benny Hamdi Rhoma Putra Brasie Pradana Sela Bunga Reska Ayu Brasie Pradana Sela Bunga Riska Ayu Brian Adam Dwi Yulio Budhi Kristianto Bunga Riska Ayu, Brasie Pradana Sela Carlos Fernandez Dara Vann Devin Mahendika Dwi Wahyu Hidayat, Dwi Wahyu Edi Suharyadi Eka Krisdayanti Eko Sediyono Ery Muthoriq Ery Muthoriq, Ery Ethys Pranoto Fadia Qatrunada Fahmadi, Aat Eska Faishal Andhi Rokhman Farisy Yanuar W P Firdaus, Denisya Haddad Frans Tohom Gamar Al Haddar Ghani Ridho Rahmatullah Griyo Arti, Tri Gunawan Gunawan Gunawan Gunawan Hadi, Suprapto Haidar Dzaki Hakim, M. Iman Nur Halimatus Sa'diyah, Nur Helmi Wibowo, Helmi Humami, Faris I Made Suartika I Made Sukmayasa Iffan Bagus Dwi Saputra Indra Tjahyadi Ita Soegiarto Jamil Khan Jihan Luis Joko Siswanto Kanindia Maulidhany Kanthi Pangestu Wijayanthi Kurniawan, Moch. Aziz Lestari, Astri Lily Purwianti Mardikawati, Budi Mariadi Kaharmen, Herman Marwanto, Riza Phahlevi Mohamad Yoga S Mokhammad Rifqi Tsani MS. Viktor Purhanudin Muflihatun Muh. Safar Muhammad Iman Nur Hakim Nong Chai Nurul Fitriani Nurul Fitriani Nurul Huda Nuryati Solapari Omar Khan Peni Susapti Pranoto, Ethys Pratindy, Raka PUTRO, HANENDYO Raka Pratindy Ravi Dara Rifano Rifano Rifano Rinovian Rais Risqi, Muhammad Isro Riza Phahlevi Riza Phahlevi Marwanto Rizka Amanda Choirani Roya Zahir Sandy Indra Kapotha Sentoso, Antony Setiawan, Santo Shafa Nadhifah M Sri Yunita Ningsih Sugianto Suprapto Hadi Suprapto Hadi Susanto, C Trisno Suyuti Suyuti Thiago Rocha Wahyu Hidayat, Dwi Wibowo, Muhammad Riski Septiana Widiandaru, Nanang Okta Yang Xiang Yogi Oktopianto Yohanes Susanto Yulio, Brian Adam Dwi Zainal Arifin Hasibuan Zuhrianto, Farhan Afif