Abstract
This article refers to the shape-adaptive DCT ( SA-DCT ) algorithm developed by Sikora and Makai in 1995. It is an important tool for encoding texture of arbitrary shaped video objects and can be included in MPEG-4 video codecs. In this paper a modification of normalized version SA-DCT redesigned for intraframe coding is presented. Simulations results show that this solution outperforms standard SA-DCT in rate-distortion sense. Efficiency is close to improved version SA-DCT for intraframe coding, known as ΔDC-SA-DCT. But computational overhead is smaller than for ΔDC-SA-DCT. Therefore, this solution may be attractive for hardware implementations.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
References
Sikora, T., Makai, B.: Shape-Adaptive DCT for Generic Coding of Video. IEEE Transactions on Circuit and Systems for Video Technology 5 (1995) 59–62
Kaup, A.: Object-Based Texture Coding of Moving Video in MPEG-4. IEEE Transactions on Circuit and Systems for Video Technology 9 (1999) 5–15
Kauff, P., Schüür, K.: Shape-Adaptive DCT with Block-Based DC Separation and ΔDC Correction. IEEE Transactions on Circuit and Systems for Video Technology 8 (1998) 237–242
Gilge, M., Engelhardt, T., Mehlan, R.: Coding of Arbitrarily Shaped Image Segments Based on Generalized Orthonormal Transform. Signal Processing: Image Communications 1 (1989)153–180
MPEG-4 Video Verification Model version 16.0, ISO/IEC JTC1/SC29/WG11
Pirsch, P., Demassieux, N., Gehrke, W.: VLSI Architectures for Video Compression-a Survey. Proceedings IEEE, February (1995) 220–246
Chang, T.S., Kung, C.S., Jen, C.-W.: A Simple Processor Core Design for DCT/IDCT, IEEE Transactions on Circuit and Systems for Video Technology, April (2000) 439–447
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2001 Springer-Verlag Berlin Heidelberg
About this paper
Cite this paper
Mroczek, K. (2001). Shape-Adaptive DCT Algorithm — Hardware Optimized Redesign. In: Skarbek, W. (eds) Computer Analysis of Images and Patterns. CAIP 2001. Lecture Notes in Computer Science, vol 2124. Springer, Berlin, Heidelberg. https://doi.org/10.1007/3-540-44692-3_16
Download citation
DOI: https://doi.org/10.1007/3-540-44692-3_16
Published:
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-540-42513-7
Online ISBN: 978-3-540-44692-7
eBook Packages: Springer Book Archive