The Discrete Wavelet Transform (DWT) is used in a variety of signal processing applications, such as video compression , Internet communications compression , object recognition , and numerical analysis. It can e_ciently represent some signals,

This is achieved by relying on integral images for image convolutions by building on the strengths of the leading existing detectors and descr iptors (in casu, using a Hessian matrix-based measure for the detector, and a distribution-based descr ipto