An operating device comprising: a reference laser scan data obtaining circuit having a structure that obtains laser scan data, which is obtained by scanning an object to be measured with laser light by a laser scanner while a vehicle travels, as reference laser scan data, the laser scanner fixed on the vehicle and having exterior orientation parameters with respect to the vehicle, which are determined; an image data obtaining circuit having a structure that obtains data of a first comparative image, a second comparative image and a third comparative image, the first comparative image being photographed at time t 1, the second comparative image being photographed at time t 2 and the third comparative image being photographed at time t 3, by a camera that is fixed on the vehicle while the vehicle travels; a reference point cloud position data calculator that calculates first reference point cloud position data, second reference point cloud position data and third reference point cloud position data from the reference laser scan data based on a trajectory the vehicle has travelled, the first reference point cloud position data being described in a coordinate system that is defined on the vehicle at the time t 1, the second reference point cloud position data being described in a coordinate system that is defined on the vehicle at the time t 2 and the third reference point cloud position data being described in a coordinate system that is defined on the vehicle at the time t 3; a matching point selecting circuit having a structure that selects matching points between the first reference point cloud position data and the first comparative image, that selects matching points between the second reference point cloud position data and the second comparative image and that selects matching points between the third reference point cloud position data and the third comparative image; characterized in that the operating device further comprises: an exterior orientation parameter calculator that calculates exterior orientation parameters of the camera with respect to the vehicle based on superposed matching point data and image coordinate values of superposed matching points in the first to the third comparative images, the superposed matching point data being obtained by superposing the matching points in the first to the third reference point cloud position data, and the superposed matching points being obtained by superposing the matching points in the first to the third comparative images, by a resection method or a DLT method using the superposed matching point data of the comparative images and the superposed matching point data of the reference point cloud position data. a reference laser scan data obtaining circuit having a structure that obtains laser scan data, which is obtained by scanning an object to be measured with laser light by a laser scanner while a vehicle travels, as reference laser scan data, the laser scanner fixed on the vehicle and having exterior orientation parameters with respect to the vehicle, which are determined; an image data obtaining circuit having a structure that obtains data of a first comparative image, a second comparative image and a third comparative image, the first comparative image being photographed at time t 1, the second comparative image being photographed at time t 2 and the third comparative image being photographed at time t 3, by a camera that is fixed on the vehicle while the vehicle travels; a reference point cloud position data calculator that calculates first reference point cloud position data, second reference point cloud position data and third reference point cloud position data from the reference laser scan data based on a trajectory the vehicle has travelled, the first reference point cloud position data being described in a coordinate system that is defined on the vehicle at the time t 1, the second reference point cloud position data being described in a coordinate system that is defined on the vehicle at the time t 2 and the third reference point cloud position data being described in a coordinate system that is defined on the vehicle at the time t 3; a matching point selecting circuit having a structure that selects matching points between the first reference point cloud position data and the first comparative image, that selects matching points between the second reference point cloud position data and the second comparative image and that selects matching points between the third reference point cloud position data and the third comparative image; characterized in that the operating device further comprises: an exterior orientation parameter calculator that calculates exterior orientation parameters of the camera with respect to the vehicle based on superposed matching point data and image coordinate values of superposed matching points in the first to the third comparative images, the superposed matching point data being obtained by superposing the matching points in the first to the third reference point cloud position data, and the superposed matching points being obtained by superposing the matching points in the first to the third comparative images, by a resection method or a DLT method using the superposed matching point data of the comparative images and the superposed matching point data of the reference point cloud position data.