Interframe Coding of Feature Descriptors for Mobile Augmented Reality | IEEE Journals & Magazine | IEEE Xplore

Interframe Coding of Feature Descriptors for Mobile Augmented Reality


Abstract:

Streaming mobile augmented reality applications require both real-time recognition and tracking of objects of interest in a video sequence. Typically, local features are ...Show More

Abstract:

Streaming mobile augmented reality applications require both real-time recognition and tracking of objects of interest in a video sequence. Typically, local features are calculated from the gradients of a canonical patch around a keypoint in individual video frames. In this paper, we propose a temporally coherent keypoint detector and design efficient interframe predictive coding techniques for canonical patches, feature descriptors, and keypoint locations. In the proposed system, we strive to transmit each patch or its equivalent feature descriptor with as few bits as possible by modifying a previously transmitted patch or descriptor. Our solution enables server-based mobile augmented reality where a continuous stream of salient information, sufficient for image-based retrieval, and object localization, is sent at a bit-rate that is practical for today’s wireless links and less than one-tenth of the bit-rate needed to stream the compressed video to the server.
Published in: IEEE Transactions on Image Processing ( Volume: 23, Issue: 8, August 2014)
Page(s): 3352 - 3367
Date of Publication: 17 June 2014

ISSN Information:

PubMed ID: 24956363

References

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