Blake, EHKuijk, AAMP. F. Lister and R. L. Grimsdale2014-02-062014-02-061993--https://doi.org/10.2312/EGGH/EGGH93/119-132A diffetence engine is described that is designed to be used as low level component of a raster graphicsarchitecture. The speed of the system (11 ns per operation) is achieved by the use of custom VLSI componentsfor the most primitive operations. This permits the video rate reconstruction of images and other signalscompressed by encoding them on various polynomial bases. The paper describes a feasibility study for its usefor image reconstruction. The study shows that the system can be applied to the decompression of spline wavelet encoded images.