The patches of the rice paddies are generally positioned by a traditional surveying method such as Plane Table and Total Station in Korea. This study has been undertaken to check whether TLS (Terrestrial Laser Scanner) could meet the accuracy standard, compare TLS survey data with those one of the new modern survey technologies such as digital aerial photogrammetry and RTK GPS. As a result, it ...

In this paper, absolute positioning instrument using trilateration ultrasonic sensor is mainly proposed to estimate absolute position errors combined with estimated position and orientation from differential odometry integrated with gyroscope to calculate absolute position of mobile robot. In the method, the indirect Kalman filter is mainly used to estimate absolute position errors and the esti...

I alone am responsible for the opinions as they are expressed in this paper. The members of the Board were placed under great obligations by the kindness of planters, administrators, and doctors in Malaya, Java, and Sumatra, and I feel especially indebted to Dr. Chas. Lane Sansom, c.m.g., p.m.o., Fed. M. S.; Hon. W. Gilmore Ellis, p.c.m.o., Straits Settlements, and to Den Hogg. Ed. Gestr., Herr...