Efficient disparity vector prediction schemes with modified P frame for 2D camera arrays

Autor: Avci, A., Decock, J., Lambert, P., Beernaert, R., Lawrence Bogaert, Youri Meuret, Hugo Thienpont, Smet, H.
Přispěvatelé: Brussels Photonics Team, Applied Physics and Photonics
Předmět:
Zdroj: Vrije Universiteit Brussel
Popis: An efficient disparity estimation algorithm for multi-view video sequences, recorded by a two-dimensional camera array in which the cameras are spaced equidistantly, is presented. Because of the strong geometrical relationship among views, the disparity vectors of a certain view can for most blocks be derived from the disparity vectors of other views. A frame constructed using that idea is called a D frame in this work. Three new prediction schemes which contain D frames are proposed for encoding 5 x 3 multi-view video sequences. The schemes are applied to several multi-view image sequences taken from a camera-array and they are compared in terms of quality, bit-rate and complexity. The experimental results show that the proposed prediction schemes significantly decrease the complexity of the encoder at a very low cost of quality and/or bit-rate. (C) 2011 Elsevier Inc. All rights reserved.
Databáze: OpenAIRE