Transform coding of image feature descriptors
Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE2008Vol. 7257, pp. 725710–725710
Citations Over TimeTop 10% of 2008 papers
Abstract
We investigate transform coding to efficiently store and transmit SIFT and SURF image descriptors. We show that image and feature matching algorithms are robust to significantly compressed features. We achieve near-perfect image matching and retrieval for both SIFT and SURF using ~2 bits/dimension. When applied to SIFT and SURF, this provides a 16× compression relative to conventional floating point representation. We establish a strong correlation between MSE and matching error for feature points and images. Feature compression enables many application that may not otherwise be possible, especially on mobile devices.
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