Compression-Based Tools for Navigation with an Image Database

Algorithms

Antonella Di Lillo¹  Ajay Daptardar¹  Kevin Thomas¹  James A. Storer¹ 

[1] Computer Science Department, Brandeis University, Waltham, MA 02454, USA

关键词: image retrieval;    image analysis;    location;    navigation;   

DOI  :  10.3390/a5010001

来源: mdpi

【 摘 要 】

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.

【 授权许可】

CC BY   
© 2012 by the authors; licensee MDPI, Basel, Switzerland.