Emerging trends in computer design attempt to include specific solutions for handling images also in general-purpose computers, because of the current spread of multimedia, image processing and computer graphics applications. In this context, we propose hardware pre-fetching techniques specific for caching images: The main issue we state is that most algorithms working on images exhibit a 2D spatial locality that is not taken into account in current cache organization and data access strategies. To this aim we propose an adaptive local pre-fetching for the image data type; this technique, mirroring the two-dimensional spatial locality of image processing algorithms, results in being more efficient than other approaches, such as sequential pre-fetching and adaptive pre-fetching. Performance is evaluated on different classes of image processing algorithms, namely raster-scan and propagative algorithms, common in computer vision and multimedia applications.

Exploiting image processing locality in cache pre-fetching / Cucchiara, R.; Piccardi, M.. - (1998), pp. 466-472. ((Intervento presentato al convegno 5th International Conference on High Performance Computing, HiPC 1998 tenutosi a ind nel 1998 [10.1109/HIPC.1998.738023].

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