From Stereo Images to Thermal Models: A Prototype System

摘要

This report describes work carried out to investigate and develop techniques for making energy audits of existing buildings quicker, more reliable and cost effective. An essential part of any energy audit is the collection of the building geometrical data for input to a thermal simulation model. This is likely to be a time consuming process, not helped by the fact that in many buildings suitable plans will not be available. The Joint Research Centre of the European Communities (JRC) therefore decided to investigate the possibility of using images of the building to provide the required dimensional data for the building envelope. The use of stereo image pairs was proposed as a way of obtaining the three-dimensional geometry of the envelope, which could then be used in a thermal simulation model, or for solar shading calculations. This report describes the principles, theory and implementation of the prototype system which has been developed for making the complete link from stereo images to thermal simulation. The programs developed are listed in two appendices. Suggestions are made for further work to improve on this prototype system to make it more accurate and quicker to use. 10 refs., 10 figs., 3 tabs. (ERA citation 13:008985)