A 2-D DCT Hardware Codec based on Loeffler Algorithm
نویسندگان
چکیده
منابع مشابه
Pipelined implementation of AI-based Loeffler DCT
We propose a pipelined implementation of the eight-point Loeffler discrete cosine transform (DCT) for portable applications. The pipelined structure produces one DCT coefficient per clock cycle, which meets the limited memory bandwidth of many portable devices. Twodimensional algebraic integer (AI) encoding and the shift-and-add approach were used to make the implementation multiplication-free....
متن کاملA New Robust Video Watermarking Technique Using H.264/AAC Codec Luma Components Based On DCT
Video watermarking is well known as the process of embedding copy right information in video bit streams. It had been proposed in recent years to solve the problem of illegal manipulation and distribution of digital video . In this study, an effective, robust DCT transform using MATLAB. In the proposed method, first the video frames are extracted from the host video. Then, each frame gets water...
متن کاملLow-Cost and High-Throughput Hardware Design for the HEVC 16x16 2-D DCT Transform
This article presents the hardware design of the 16x16 2-D DCT used in the new video coding standard, the HEVC – High Efficiency Video Coding. The transforms stage is one of the innovations proposed by HEVC, since a variable size transforms stage is available (from 4x4 to 32x32), allowing the use of transforms with larger dimensions than used in previous standards. The presented design explores...
متن کاملA Vector Maps Watermarking Algorithm Based on Dct Domain
The acquisition of vector maps is a costly process in which large amount of labour and material resources are needed for acquiring original vector map. It is very important to protect intellectual properties of vector maps under complicated network environment and prevent vector maps from being illegally commercialized abused. In this paper, we propose a watermarking algorithm for vector map ba...
متن کاملAn optimized multiplierless hardware design of fast 2 - D DCT / IDCT for image / video coding JES
Corresponding author: M. El Aakif, Electronic and Instrumentation Laboratory, Faculty of Science Semlalia, Cadi Ayyad University, Marrakech, Morocco, E-mail: [email protected] 1 Electronic and Instrumentation Laboratory, Faculty of Science Semlalia, Cadi Ayyad University, Marrakech, Morocco 2 Embedded Systems and Digital Control Laboratory, Ecole Nationale des Sciences Appliquees, Cadi Ayyad Un...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Electronics And Electrical Engineering
سال: 2011
ISSN: 2029-5731,1392-1215
DOI: 10.5755/j01.eee.113.7.611