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Compression-Based Tools for Navigation with an Image Database

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Author(s): Antonella Di Lillo | Ajay Daptardar | Kevin Thomas | James A. Storer | Giovanni Motta

Journal: Algorithms
ISSN 1999-4893

Volume: 5;
Issue: 1;
Start page: 1;
Date: 2012;
Original page

Keywords: image retrieval | image analysis | location | navigation

ABSTRACT
We present tools that can be used within a larger system referred to as a passive assistant. The system receives information from a mobile device, as well as information from an image database such as Google Street View, and employs image processing to provide useful information about a local urban environment to a user who is visually impaired. The first stage acquires and computes accurate location information, the second stage performs texture and color analysis of a scene, and the third stage provides specific object recognition and navigation information. These second and third stages rely on compression-based tools (dimensionality reduction, vector quantization, and coding) that are enhanced by knowledge of (approximate) location of objects.

Tango Jona
Tangokurs Rapperswil-Jona

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