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All Journal Geoplanning : Journal of Geomatics and Planning
Jati Pratomo
Lokalaras Indonesia Institute
Earth & Planetary Sciences

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IMPLEMENTATION OF THE MARKOV RANDOM FIELD FOR URBAN LAND COVER CLASSIFICATION OF UAV VHIR DATA Jati Pratomo; Triyoga Widiastomo
Geoplanning: Journal of Geomatics and Planning Vol 3, No 2 (2016)
Publisher : Department of Urban and Regional Planning, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1431.283 KB) | DOI: 10.14710/geoplanning.3.2.127-136

Abstract

The usage of Unmanned Aerial Vehicle (UAV) has grown rapidly in various fields, such as urban planning, search and rescue, and surveillance. Capturing images from UAV has many advantages compared with satellite imagery. For instance, higher spatial resolution and less impact from atmospheric variations can be obtained. However, there are difficulties in classifying urban features, due to the complexity of the urban land covers. The usage of Maximum Likelihood Classification (MLC) has limitations since it is based on the assumption of the normal distribution of pixel values, where, in fact, urban features are not normally distributed. There are advantages in using the Markov Random Field (MRF) for urban land cover classification as it assumes that neighboring pixels have a higher probability to be classified in the same class rather than a different class. This research aimed to determine the impact of the smoothness (λ) and the updating temperature (Tupd) on the accuracy result (κ) in MRF. We used a UAV VHIR sized 587 square meters, with six-centimetre resolution, taken in Bogor Regency, Indonesia. The result showed that the kappa value (κ) increases proportionally with the smoothness (λ) until it reaches the maximum (κ), then the value drops. The usage of higher (Tupd) has resulted in better (κ) although it also led to a higher Standard Deviations (SD). Using the most optimal parameter, MRF resulted in slightly higher (κ) compared with MLC.
ASSESSING THE USEFULNESS OF UNMANNED AERIAL VEHICLE (UAV) FOR MONITORING SPATIAL PLAN: LEGAL AND USER PERSPECTIVE OF BOGOR REGENCY, INDONESIA Dinar Maria; Firman Hamdani; Jati Pratomo; Muhammad Arszandi Pratama
Geoplanning: Journal of Geomatics and Planning Vol 4, No 2 (2017)
Publisher : Department of Urban and Regional Planning, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/geoplanning.4.2.257-262

Abstract

Monitoring is a critical process in managing the land use plan. However, the current approach to collecting data related to the land use has a shortcoming. First, field survey has limitation due to the high number of resources needed, i.e., people, funds, time. Second, the participatory approach has limitation due to the lack of involvement of the citizens. Unmanned Aerial Vehicle (UAV) has developed in recent years and it has been used in the various field, i.e., urban dynamics, asset monitoring, and so on. The usage of UAV to monitor urban changes has some advantages. First, it can cover a large area and used fewer resources compared with the field survey, in term of man hour, funds and time. Second, it may provide data with a high spatial resolution, which gives a broad possibility for analyzing urban features. This research aimed to assess the usefulness of UAV in monitoring the spatial plan of Bogor Regency, Indonesia. We developed indicator according to the legal and user perspective. Our research has shown that UAV may reduce the time and resources needed to monitor the spatial plan. However, the UAV has limitation since it is difficult to indicate the changes of the land use. Therefore, we suggest incorporating with the field survey.
Co-Authors Dinar Maria Firman Hamdani Muhammad Arszandi Pratama Triyoga Widiastomo