A fast retrieval of texture images coded with lifting schemes

We are interested in indexing images in the compressed domain without decoding these images. More precisely, we focus on applications requiring lossless and progressive reconstruction of images such as telebrowsing of medical or remote sensed images. For this purpose, the image is firstly decomposed with a lifting scheme which provides an exact and compact multiresolution representation of the input image. Then, the salient features are extracted from the coded coefficients. We propose a fast retrieval procedure thanks to an appropriate organization of the features space. Experimental results indicate good performances in term of search time.