Efficient Subframe Video Alignment Using Short Descriptors - Archive ouverte HAL Access content directly
Journal Articles IEEE Transactions on Pattern Analysis and Machine Intelligence Year : 2013

Efficient Subframe Video Alignment Using Short Descriptors

(1) , (2)
1
2

Abstract

This paper addresses the problem of video alignment. We present efficient approaches that allow for spatiotemporal alignment of two sequences. Unlike most related works, we consider independently moving cameras that capture a 3D scene at different times. The novelty of the proposed method lies in the adaptation and extension of an efficient information retrieval framework that casts the sequences as an image database and a set of query frames, respectively. The efficient retrieval builds on the recently proposed quad descriptor. In this context, we define the 3D Vote Space (VS) by aggregating votes through a multiquerying (multiscale) scheme and we present two solutions based on VS entries; a causal solution that permits online synchronization and a global solution through multiscale dynamic programming. In addition, we extend the recently introduced ECC image-alignment algorithm to the temporal dimension that allows for spatial registration and synchronization refinement with subframe accuracy. We investigate full search and quantization methods for short descriptors and we compare the proposed schemes with the state of the art. Experiments with real videos by moving or static cameras demonstrate the efficiency of the proposed method and verify its effectiveness with respect to spatiotemporal alignment accuracy.
Fichier principal
Vignette du fichier
PAMI_2013.pdf (2.14 Mo) Télécharger le fichier
Vignette du fichier
video_alignment.png (51.43 Ko) Télécharger le fichier
Origin : Files produced by the author(s)
Format : Figure, Image
Loading...

Dates and versions

hal-00862002 , version 1 (15-09-2013)
hal-00862002 , version 2 (24-09-2013)

Identifiers

Cite

Georgios Evangelidis, Christian Bauckhage. Efficient Subframe Video Alignment Using Short Descriptors. IEEE Transactions on Pattern Analysis and Machine Intelligence, 2013, 35 (10), pp.2371-2386. ⟨10.1109/TPAMI.2013.56⟩. ⟨hal-00862002v2⟩
1217 View
1305 Download

Altmetric

Share

Gmail Facebook Twitter LinkedIn More