WATERLOO – Digital imaging and semiconductor company DALSA Corp. receives orders valued at more than $17.3 million to develop remote sensing and photogrammetry solutions for five unnamed, international customers. Remote sensing is used for such activities as monitoring crops and land use, tracking icebergs, detecting oil spills, and making maps and nautical charts. Photogrammetry, a specialized type of remote sensing, is used to measure natural and human-made features from on high. Photogrammetry is the imaging technology behind the spectacular views of Earth provided by Google Earth and Microsoft Virtual Earth. The company will begin filling the orders in Q2 and expects to complete them within two years.