A Parallel Architecture for Motion Estimation and DCT Computation in MPEG-2 Encoder
نویسندگان
چکیده
This paper presents a parallel architecture that can simultaneously perform block-matching motion estimation (ME) and discrete cosine transform (DCT). Because DCT and ME are both processed block by block, it is preferable to put them in one module for resource sharing. Simulation results performed using Simulink demonstrate that the parallel fashioned architecture improves the performance in terms of running time by 18.6% compared to the conventional sequential fashioned architecture.
منابع مشابه
Software Based MEPG-2 Encoding System with Scalable and Multithreaded Architecture
MPEG-2 video encoders are now available in a variety of forms using both hardware and software based approaches. The software-based approach potentially offers a better picture quality but is computationally quite intensive. MPEG-2 video encoding can be fast processed using parallelism. A number of approaches using parallel machines or networks of workstations have been reported. While these ap...
متن کاملHigh Throughput VLSI Architecture for Multiresolution Motion Estimation in High Definition AVS Video Encoder
This paper proposes a hardware friendly multiresolution motion estimation algorithm and VLSI architecture for high definition MPEG-like video encoder hardware implementation. By parallel searching and utilizing the high correlation in multiresolition reference pixels, huge throughput and computation in motion estimation due to large search window are alleviated considerably. Sixteen way paralle...
متن کاملDesign and Implementation of H.264/AVC Encoder Using 3D DCT Architecture
H.264/AVC is a joint project of ITU and MPEG. It provides high quality compression for various services like IP streaming media, SDTV and HDTV broadcast and video on demand etc. Motion estimation, input buffer, summation unit and reference frame section form complex design of H.264/AVC encoder. It is the most advanced video standard. In this paper,H.264/AVC encoder is designed in verilog with b...
متن کاملA Complete Pipelined Parallel CORDIC Architecture For Motion Estimation - Circuits and Systems II: Analog and Digital Signal Processing, IEEE Transactions on
In this paper, a novel fully pipelined parallel CORDIC architecture is proposed for motion estimation. Unlike other block matching structures, it estimates motion in the discrete cosine transform (DCT) transform domain instead of the spatial domain. As a result, it achieves high system throughput and low hardware complexity as compared to the conventional motion estimation design in MPEG standa...
متن کاملMotion Estimation Scheme for Video Coding Using Hybrid Discrete Cosine Transform and Modified Unsymmetrical-Cross Multi Hexagon-Grid Search Algorithm
Digital video compression technologies have become an essential part of motion estimation technique. The motion estimation of H.264/AVC is a time consuming process. Many algorithms were proposed for the video stream motion estimation, but they have a high computational complexity which significantly increases the encoder complexity. This paper proposes the Modified Unsymmetrical-Cross Multi Hex...
متن کامل