A Systematic Hardware Sharing Method for Unified Architecture Design of H.264 Transforms
Joint Authors
Chen, Po-Hung
Chen, Hung-Ming
Lin, Ing-Chao
Source
Mathematical Problems in Engineering
Issue
Vol. 2015, Issue 2015 (31 Dec. 2015), pp.1-14, 14 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2015-09-10
Country of Publication
Egypt
No. of Pages
14
Main Subjects
Abstract EN
Multitransform techniques have been widely used in modern video coding and have better compression efficiency than the single transform technique that is used conventionally.
However, every transform needs a corresponding hardware implementation, which results in a high hardware cost for multiple transforms.
A novel method that includes a five-step operation sharing synthesis and architecture-unification techniques is proposed to systematically share the hardware and reduce the cost of multitransform coding.
In order to demonstrate the effectiveness of the method, a unified architecture is designed using the method for all of the six transforms involved in the H.264 video codec: 2D 4 × 4 forward and inverse integer transforms, 2D 4 × 4 and 2 × 2 Hadamard transforms, and 1D 8 × 8 forward and inverse integer transforms.
Firstly, the six H.264 transform architectures are designed at a low cost using the proposed five-step operation sharing synthesis technique.
Secondly, the proposed architecture-unification technique further unifies these six transform architectures into a low cost hardware-unified architecture.
The unified architecture requires only 28 adders, 16 subtractors, 40 shifters, and a proposed mux-based routing network, and the gate count is only 16308.
The unified architecture processes 8 pixels/clock-cycle, up to 275 MHz, which is equal to 707 Full-HD 1080 p frames/second.
American Psychological Association (APA)
Chen, Po-Hung& Chen, Hung-Ming& Lin, Ing-Chao. 2015. A Systematic Hardware Sharing Method for Unified Architecture Design of H.264 Transforms. Mathematical Problems in Engineering،Vol. 2015, no. 2015, pp.1-14.
https://search.emarefa.net/detail/BIM-1073337
Modern Language Association (MLA)
Chen, Po-Hung…[et al.]. A Systematic Hardware Sharing Method for Unified Architecture Design of H.264 Transforms. Mathematical Problems in Engineering No. 2015 (2015), pp.1-14.
https://search.emarefa.net/detail/BIM-1073337
American Medical Association (AMA)
Chen, Po-Hung& Chen, Hung-Ming& Lin, Ing-Chao. A Systematic Hardware Sharing Method for Unified Architecture Design of H.264 Transforms. Mathematical Problems in Engineering. 2015. Vol. 2015, no. 2015, pp.1-14.
https://search.emarefa.net/detail/BIM-1073337
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1073337