Utilization of Aerial Photo Techniques Using Drone With Different Flight Paths For Measurement of Fishing Boat Hull Dimensions
Paduartama Tandipuang (a), Yopi Novita (b), St Aisjah Farhum (c*), Arham Rumpa (a))

(a) Fishing Technique, Marine and Fisheries Polytechnic of Bone, Bone 92719, South Sulawesi, Indonesia

(b) Utilization of Fishery Resources, University of Bogor Agricultural Institute, Bogor 16680, East Java, Indonesia

(c) Utilization of Fishery Resources, Hasanuddin University, Makassar 90245, South Sulawesi, Indonesia
*aisjahfarhum[at]unhas.ac.id


Abstract

A Lot of stages and aquipment used to measure the dimensions of fishing boat makes this methode less efficient. The aim of this research was to compare the results of measuring the horizontal dimensions of fishing boat hulls using conventional methods and using drone with different flight path variations. The data collection process is carried out using drones with aerial photography techniques. The 3Dsurvey pilot software is used to make a flight path pattern of 0 and 90 degrees at 40 meters of altitude with 80% overlap. Aerial photo image processing was carried out using agisoft metashape software with medium settings for align photos, dense clouds, and tiled models. From 4 different locations, there were 32 fishing boats that could be measured. The results showed that the dimensional average difference values for LoA was 2,78 cm and Bmax was 1,63 cm with the 90 degrees flight path pattern. The 0 degrees flight path pattern shows the dimensional average difference values of LoA was 3,22 cm and Bmax was 3,92 cm. The Completely Randomize Block Design test stated that both of treatment and block had an influence on LoA. Treatment has no influence on Bmax, but the block had an influence. Tukey^s tests result stated that K1 was not significantly different from K2 on the LoA. The K0, K1, and K2 was not significantly different on the Bmax. This technique can be applied as an alternative method for measuring the horizontal dimensions of fishing boat hulls in large quantities.

Keywords: aerial photography, dimension measurement, drone, fishing boat

Topic: Marine and Fisheries Geographic Information System

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