Since retirement, besides the publication of the second book, he has been fortunate to be able to apply some of his techniques of biologically-inspired image processing to applications of forest management (in conjunction with Massey University, New Zealand) and in measurement of the physical stress / strain relationships of yarns & ropes (in conjunction with his son, Martin S. Overington and Tensile Technology International (TTI)). He has also been able to demonstrate some of the powerful capabilities which can be applied to stereo depth mapping and high resolution data extraction from satellite imagery. Since 2004 he has been able to offer a Research packaged version of his main software for trial usage.
Then, in 2009 he was able to start investigations into the mechanisms used by Human vision for handling of the stereo input information captured by binocular vision and how this interacted with the various contrived means of viewing stereo pairs of images. This has resulted in him being able to demonstrate how to carry out combination processing of individual stereo pairs of images in order to create single composite images which can display 3D depth on normal 2D surfaces (such as 2D display screens or conventional 2D hard copy) without the need for any sort of optical aids. This recent research has been aided greatly by the (fortuitous) marketing in late 2009 of a compact digital camera capable of capturing stereo pairs of images or short video clips at the same instant by two matched lenses spatially separated by the same distance as the two human eyes (the Fuji REAL 3D camera). With this Ian has been able to capture several hundred stereo pairs with which to experiment. He has also been helped greatly by his son Martin, who has very efficiently converted Ianís new basic software into a semi-automatic processing package.