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Optical Flow based on Approximate Nearest Neighbor Field

Jith, Nirmal OU and Ramakanth, Avinash S and Babu, Venkatesh R (2014) Optical Flow based on Approximate Nearest Neighbor Field. In: IEEE International Conference on Electronics, Computing and Communication Technologies (IEEE CONECCT), JAN 06-07, 2014, Indian Inst Sci, Bangalore, INDIA.

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Abstract

In this work, we propose an algorithm for optical flow estimation using Approximate Nearest Neighbor Fields (ANNF). Proposed optical flow estimation algorithm consists of two steps, flow initialization using ANNF maps and cost filtering. Flow initialization is done by computing the ANNF map using FeatureMatch between two consecutive frames. The ANNF map obtained represents a noisy optical flow, which is refined by making use of superpixels. The best flow associated with each superpixel is computed by optimizing a cost function. The proposed approach is evaluated on Middlebury and MPI-Sintel optical flow dataset and is found to be comparable with the state of the art methods for optical flow estimation.

Item Type: Conference Proceedings
Additional Information: Copy right for this article belongs to the IEEE International Conference on Electronics, Computing and Communication Technologies (IEEE CONECCT), Indian Inst Sci, Bangalore, INDIA, JAN 06-07, 2014
Keywords: Large displacement Optical Flow; Approximate Nearest Neighbor Field; PatchMatch
Department/Centre: Division of Interdisciplinary Research > Supercomputer Education & Research Centre
Depositing User: Id for Latest eprints
Date Deposited: 01 Apr 2015 12:16
Last Modified: 01 Apr 2015 12:16
URI: http://eprints.iisc.ac.in/id/eprint/51165

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