An image resection method applied to mapping techniques

Abstract

Mapping techniques have emerged as reliable measurement methods in a wide variety of fields. This is the case for temperature mapping and flow field visualization. Another promising technique is pressure mapping based on pressure-sensitive paints. All these mapping methods provide images which are very useful by themselves because 2D or 3D views allow improved knowledge about the studied behavior. The usefulness of the image could further be enhanced by relating each image point to a point on the viewed object. A resection method is described. It allows data to be extracted from the image and virtual images to be created. The method includes two parts. The first part covers recognition of the camera location. The second part is the resection method itself. The background is described and the software used is discussed. Finally three applications connected with temperature mapping in wind tunnels illustrate the capability of the method.