Analyzing the impact of the initialization for the nonnegative tensor factorization in tensor displays

David Carmona-Ballester; Juan Manuel Trujillo-Sevilla; Sergio Bonaque-González; Ángela Hernández-Delgado; José Manuel Rodríguez-Ramos

doi:10.1117/1.OE.57.6.061603

23 January 2018 Analyzing the impact of the initialization for the nonnegative tensor factorization in tensor displays

David Carmona-Ballester, Juan Manuel Trujillo-Sevilla, Sergio Bonaque-González, Ángela Hernández-Delgado, José Manuel Rodríguez-Ramos

Author Affiliations +

Funded by: National R&amp;D Program

Optical Engineering, Vol. 57, Issue 6, 061603 (January 2018). https://doi.org/10.1117/1.OE.57.6.061603

Abstract

Tensor display is an option in glasses-free three-dimensional (3-D) display technology. An initial solution has to be set to decompose the light-field information to be represented by the system. We have analyzed the impact of the initial guess on the multiplicative update rules in terms of peak signal-to-noise ratio, and proposed a method based on depth map estimation from an input light field. Results from simulations were obtained and compared with previous literature. In our sample, the initial values used have a large influence on results and convergence to a local minimum. The quality of the output stabilizes after a certain number of iterations, suggesting that a limit on such numbers should be imposed. We show that the proposed methods outperform the pre-existing ones.

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David Carmona-Ballester, Juan Manuel Trujillo-Sevilla, Sergio Bonaque-González, Ángela Hernández-Delgado, and José Manuel Rodríguez-Ramos "Analyzing the impact of the initialization for the nonnegative tensor factorization in tensor displays," Optical Engineering 57(6), 061603 (23 January 2018). https://doi.org/10.1117/1.OE.57.6.061603

Received: 19 September 2017; Accepted: 27 December 2017; Published: 23 January 2018

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