Recent Trend of Development and Application in Range Imaging

2 Measurement of Distance Three-dimensional position and shape measurement It is well known that ERIM (Environmental Research systems are widely used in industrial fields, but also in social environment fields. These are divided into 3 Institute of Michigan) developed 3 types of AM categories: distance measurement for navigation, position (Amplitude Modulated) laser radar in which ALV (Autonomous Land Vehicle) sensors were used in the and shape measurement for manipulation and micro-structure measurement for observation of material. Navlab Project at CMU. This rangfinder is based on the This paper describes recent trends of range imaging measurement of transit time or time-of-flight by detecting the phase difference between transmitted signal and technologies. received signal(l,2). This type of rangefinder has great