Pruning Algorithm for Energy Efficient DCT Implementation for High Efficiency Video Coding
Journal Title: International Journal for Research in Applied Science and Engineering Technology (IJRASET) - Year 2017, Vol 5, Issue 6
Abstract
This paper presents area and power efficient architectures for the implementation of integer discrete cosine transform (DCT) of different lengths to be used in High Efficiency Video Coding (HEVC).We show that an efficient constant matrix multiplication scheme can be used to derive parallel architectures for 1-D integer DCT of different lengths. We also show that the proposed structure could be reusable for DCT of lengths 4, 8, 16, and 32 with a throughput of 32 DCT coefficients per cycle irrespective of the transform size. Moreover, the proposed architecture could be pruned to reduce the complexity of implementation substantially with only a marginal effect on the coding performance. We propose power-efficient structures for folded and full-parallel implementations of 2-D DCT. From the synthesis result, it is found that the proposed architecture involves nearly 14 percent less area-delay product (ADP) and 19 percent less energy per sample (EPS) compared to the direct implementation of the reference algorithm, on average, for integer DCT of lengths 4, 8, 16, and 32. Also, an additional 19 percent saving in ADP and 20 percent saving in EPS can be achieved by the proposed pruning algorithm with nearly the same throughput rate. The proposed architecture is found to support ultrahigh definition 7680×4320 at 60 frames/s video, which is one of the applications of HEVC.
Authors and Affiliations
P. Ranjith, B. Kedarnath, P. Madhusudhan Reddy
Keywords
Related Articles
- EP ID EP24593
- DOI -
- Views 343
- Downloads 11
Thermal performance Analysis Using V-Shaped Fins in Solar Absorber Plate
In the present work, it is aimed to improve the thermal performance of solar absorber plate by applying v-shaped fins on the collector surface. An experimental analysis has been done to investigate and compare the therm...
Performance Enhancement of Facial Expression Recognition using Appearance based features
Ability of recognizing facial expression is important part of behavioural science, which helps to ease the communication. This ability can serve in many contexts. Hence, facial expression is an important research area o...
slugPlant Growth Promoting Traits of Diazotrophic Bacteria Effects on Growth and Yield of Rice Crops
The search for diverse plant growth promoting (PGP) nitrogen fixing bacteria is increasing day by day as efforts are increasing to exploit them as bio fertilizers for various economically importan...
Advanced Oxidation Processes and DDT Degradation Kinetics with H 2 O 2 /Sunlight
Advanced Oxidation Processes (AOPs) are a group of oxidation processes carried out to remove harmful persistent organic pollutants (POP) from water, which are otherwise very hard to remove. The last century saw a glut o...
Smart Braking System
Now a days, using two wheelers which is having ABS system is indispensable need. In India riders of two wheelers are the most vulnerable users. In 2014, 32,524 lives were lost involving these vehicles and over 1.27 lac...