NDLI: Real-time multi-level wavelet lifting scheme on a fixed-point DSP for JPEG 2000 and scalable video coding

Content Provider	IEEE Xplore Digital Library
Author	Loomans, M.J.H. Koeleman, C.J. de With, P.H.N.
Copyright Year	2009
Description	Author affiliation: Eindhoven University of Technology, Den Dolech 2. 5612 AZ, The Netherlands (de With, P.H.N.) \|\| VDG Security BV, Radonstraat 10-14, 2718 TA, Zoetermeer, The Netherlands (Loomans, M.J.H.; Koeleman, C.J.)
Abstract	In this paper, we discuss the design and real-time implementation of a multi-level two-dimensional Discrete Wavelet Transform (2D-DWT). The wavelet transform uses the well-known 5/3 filter coefficients and is implemented using the lifting framework. However, the transform allows complexity-scalable solutions with different latencies for scalable video coding. We have extensively utilized SIMD (Single Instruction Multiple Data) and DMA (Direct Memory Access) techniques, where the proposed process of background DMA transfers is so effective, that the ALUs are almost never starved for data input. The obtained execution performs a 4-level transform at CCIR-601 broadcast resolution in 3.65 Mcycles, including memory stalls, on a DM642 DSP. At a clock rate of 600MHz this translates to more than 160 transforms per second, satisfying the performance requirements for a real-time image/video encoding system for e.g. surveillance applications.
Starting Page	1
Ending Page	6
File Size	589288
Page Count	6
File Format	PDF
ISBN	9781424432974
DOI	10.1109/ICDSP.2009.5201227
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-07-05
Publisher Place	Greece
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Digital signal processing Video coding Discrete wavelet transforms Filters Discrete transforms Delay Multimedia communication Broadcasting Clocks Real time systems Implementation Real-time Wavelet Transform DSP Embedded Video Coding
Content Type	Text
Resource Type	Article

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