This project consists of two parts. In the first part, we propose to build an iPhone application that acquires a pair of two-dimensional images where one dimension is spatial and the other temporal (pushbroom imagery). The images in the pair will be acquired simultaneously but will differ by a small spatial shift, which will allow for the computation of a quantity known as an optical flow. This optical flow measures the component of the apparent velocity that is perpendicular to the spatial basis vector of the spatio-temporal image.

In the second part of the project, we shall consider instead the motion that is parallel to the spatial basis vector, which can be measured by correlation methods. The final aim of the project is to compare and discuss the accuracy of the two approaches.

This programming project will be conducted in the Objective-C language. A prerequisite is following (or having followed) the course on image processing taught by M. Unser.