Mode-dependent pixel-based weighted intraprediction for HEVC scalable extension

Tang Kha Duy Nguyen; Chun-Chi Chen

doi:10.1117/12.2064639

16 April 2014 Mode-dependent pixel-based weighted intraprediction for HEVC scalable extension

Tang Kha Duy Nguyen, Chun-Chi Chen

Proceedings Volume 9159, Sixth International Conference on Digital Image Processing (ICDIP 2014); 915925 (2014) https://doi.org/10.1117/12.2064639
Event: Sixth International Conference on Digital Image Processing, 2014, Athens, Greece

Abstract

The current draft scalable extension to HEVC offers two approaches, RefIdx and TextureRL, for performing inter-layer prediction. In the framework of TextureRL, this paper presents a mode-dependent pixel-based weighted intra prediction scheme for coding the enhancement layer (EL). The scheme first decomposes the EL intra prediction and the collocated base layer reconstructed block into their respective DC and AC components and then computes a weighted sum of both to form a better prediction signal using a pixel-based weighting scheme. The weighting factors to associate with different components are obtained by a least-squares fit to the training data. It was observed that they depend strongly on the EL's intra prediction mode and prediction block size, but are less dependent on QP settings. The experimental results show an average BD-rate savings of 1.0% for the AI-2x configuration and 0.5% for AI-1.5x over the SHM-1.0 anchor.

Citation Download Citation

Tang Kha Duy Nguyen and Chun-Chi Chen "Mode-dependent pixel-based weighted intraprediction for HEVC scalable extension", Proc. SPIE 9159, Sixth International Conference on Digital Image Processing (ICDIP 2014), 915925 (16 April 2014); https://doi.org/10.1117/12.2064639

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available