Abstract
This paper proposes a novel object recognition technique using a laser scanner. A laser scanner precisely measures three dimensional shape of a target, and object recognition can be conducted by comparing shapes of objects. However, it is difficult to distinguish objects that have similar shapes, such as a remote control and a cellphone, based only on three dimensional data. On the other hand, a laser scanner can obtain intensity of a laser pulse as a by-product of range data. Reflectance image, which is a collection of intensity data, has appearance information of a target object. We developed a novel object recognition technique using range and reflectance image simultaneously, and realized road traffic census by applying the proposed technique.