We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Fast Algorithms and Architectures for 8-Point DST-II/DST-VII Approximations.
- Authors
Cintra, Renato J.; Bayer, Fábio M.; Madanayake, Arjuna; Potluri, Uma S.; Edirisuriya, Amila
- Abstract
Multiplier-free fast algorithms are derived and analyzed for realizing the 8-point discrete sine transform of type II and type VII (DST-II and DST-VII) transforms with applications in image and video compression. A new fast algorithm is identified using numerical search methods for approximating DST-VII without employing multipliers. In addition, recently proposed fast algorithms for approximating the 8-point DCT-II are now extended to approximate DST-II. All proposed approximations for DST-II and DST-VII are compared with ideal transforms, and circuit complexity is measured using FPGA-based rapid prototypes on a 90nm Xilinx Virtex-4 device. The proposed architectures find applications in emerging video processing standards such as H.265/HEVC.
- Subjects
APPROXIMATION theory; ANALOG multipliers; VIDEO processing; ALGORITHMS; PROTOTYPES
- Publication
Journal of Circuits, Systems & Computers, 2017, Vol 26, Issue 3, p-1
- ISSN
0218-1266
- Publication type
Article
- DOI
10.1142/S0218126617500451