| Paper: | DISPS-P4.2 | ||
| Session: | Design and Mapping Techniques | ||
| Time: | Friday, May 21, 13:00 - 15:00 | ||
| Presentation: | Poster | ||
| Topic: | Design and Implementation of Signal Processing Systems: Hardware for Image and Video Coding | ||
| Title: | POLYPHASE STRUCTURES FOR MULTIPLIERLESS BIORTHOGONAL FILTER BANKS | ||
| Authors: | Kishore Kotteri; Virginia Tech | ||
| Amy Bell; Virginia Tech | |||
| Joan Carletta; University of Akron | |||
| Abstract: | Design techniques for high performance, fixed-point, multiplierless filter banks are presented. A technique is developed for designing a fixed-point polyphase filter structure such that the hardware is highly efficient and the image compression quality is minimally impacted by the use of fixed-point mathematics. Image compression using the biorthogonal 9/7 discrete wavelet transform provides a motivating example. The results show that implementation structure has a significant impact on the resulting hardware cost, throughput, and compression quality. We achieve a polyphase structure with twice the throughput rate of non-polyphase structures and image compression fidelity within 0.2dB of the unquantized, floating-point filters. | ||
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