The Independent Component Analysis Approach to Interframe Video Coding

• Type: Article in International Conference Proceedings Book
• Date: 1996

Authors

André Puga (Author) FEUP; Artur Pimenta Alves (Author) FEUP

Conference proceedings International

Title: Proceedings International Conference on Telecommunications ICT96

Pages: 620-623

International Conference on Telecommunications - ICT96

Istambul, Turquia

Other information

Resumo (PT): The "gaussianity" of natural images has historically imposed the conventional 2nd order statistics approach to the image coding problem. But, as will be shown, the non-natural images present in the hybrid video coder are far from "gaussianity". Consequently the design of non-natural image coding transformations should contemplate the maximisation of higher-order statistics independence in parallel with maximisation of 2nd order statistics independence. In this paper the new optimal transform coding problem is formulated and it will be called Higher-Order Karhunen-Loève Transform (HOKLT). It will be shown that this problem corresponds to the Independent Component Analysis (ICA) with one additional restriction: the transformation should be equientropic.

Language: Portuguese

Type (Professor's evaluation): Scientific

No. of pages: 4