scholarly journals Energy-Efficient Multi- Core Scheduling for Real-Time Video Processing

2011 ◽  
Vol 16 (6) ◽  
pp. 11-20 ◽  
Author(s):  
Hyung-Goo Paek ◽  
Jeong-Mo Yeo ◽  
Wan-Yeon Lee
Keyword(s):  
Real Time ◽  
Video Processing ◽  
Energy Efficient

scholarly journals Energy-Efficient NoC-Based Systems for Real-Time Multimedia Applications using Approximate Computing

2021 ◽  
Author(s):  
Wagner I. Penny ◽  
Daniel M. Palomino ◽  
Marcelo S. Porto ◽  
Bruno Zatt
Keyword(s):  
Real Time ◽  
Video Processing ◽  
Energy Efficient ◽  
Processing System ◽  
Schedulability Analysis ◽  
Multimedia Applications ◽  
Timing Constraints ◽  
Approximate Computing ◽  
Processing Elements ◽  
Fractional Motion Estimation

This work presents an energy-efficient NoC-based system for real-time multimedia applications employing approximate computing. The proposed video processing system, called SApp-NoC, is efficient in both energy and quality (QoS), employing a scalable NoC architecture composed of processing elements designed to accelerate the HEVC Fractional Motion Estimation (FME). Two solutions are proposed: HSApp-NoC (Heuristc-based SApp-NoC), and MLSApp-NoC (Machine Learning-based SApp-NoC). When compared to a precise solution processing 4K videos at 120 fps, HSApp-NoC and MLSApp-NoC reduce about 48.19% and 31.81% the energy consumption, at small quality reduction of 2.74% and 1.09%, respectively. Furthermore, a set of schedulability analysis is also proposed in order to guarantee the meeting of timing constraints at typical workload scenarios.

Energy Efficient Quality Tunable CORDIC for DSP Applications on Battery Operated Portable Devices

2017 ◽  
Vol 27 (04) ◽  
pp. 1850051
Author(s):  
Neha K. Nawandar ◽  
Vishal R. Satpute
Keyword(s):  
Real Time ◽  
Video Processing ◽  
Energy Efficient ◽  
Digital Signal ◽  
Portable Devices ◽  
Scale Free ◽  
Basic Scale ◽  
Value Decomposition ◽  
The Cost ◽  
Dsp Applications

COrdinate Rotation DIgital Computer (CORDIC) is commonly utilized for the computation of cosine/sine i.e., the trigonometric functions, singular value decomposition, in digital signal processing (especially in image/video processing), etc. This paper introduces an energy efficient quality tunable CORDIC architecture that computes the cosine/sine values of any required angle in real-time, and is thus well suited for real time DSP applications, especially for image or video processing applications. The proposed architecture reduces the latency and overcomes data dependency by simultaneously performing all the five iterations, that may vary depending upon the desired energy efficiency. The novelty of this architecture is that, desired quality can be achieved by selecting one out of the available three modes. In order to assess the efficacy of the suggested architecture, some benchmark images are processed using the Discrete Cosine Transform (DCT) coefficients obtained via the proposed design. Energy saving is achieved at the cost of slight acceptable degradation in the output image quality. Further, the simulation results show that the proposed architecture is 92.3%, 2.8% and 49.08% more energy efficient than the existing basic, scale-free and lookahead CORDIC architectures, respectively.

Energy Efficient and Real-Time NOMA Scheduling in IoMT-based Three-Tier WBANs

2021 ◽  
pp. 1-1
Author(s):  
Zeinab Askari ◽  
Jamshid Abouei ◽  
Muhammad Jaseemuddin ◽  
Alagan Anpalagan
Keyword(s):  
Real Time ◽  
Energy Efficient

Design of a real-time video processing system with FPGA

2002 ◽  
Author(s):  
Wei Liu ◽  
Zeying Chi ◽  
Wenjian Chen
Keyword(s):  
Real Time ◽  
Video Processing ◽  
Processing System
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