Research Paper | Electronics & Communication Engineering | India | Volume 2 Issue 3, March 2013
VLSI Implementation of H.264 Transform and Quantization Algorithms
G. Dileepvamshi, P. Ramakrishna
The video compression efficiency achieved in H.264 standard is not a result of any single feature but rather a combination of a number of encoding tools. As it is shown in the top-level block diagram of an H.264 Encoder in Figure 1, two of these tools are the transform and quantization algorithms. Even though most of the previous video coding standards, e.g. MPEG-1, H.261, MPEG-2, H.263 and MPEG-4, use the 8x8 Discrete Cosine Transform (DCT) to transform the residual data, H.264 uses a 4x4 integer transform for transforming residual data. The integer transform achieves very similar results to 8x8 DCT without any floating point operations. In addition, all the multiplication operations in the forward and inverse transform algorithms can be implemented in hardware with low cost binary shifters. Since the inverse transform in H.264 is defined by exact integer operations, inverse transform mismatches are avoided. Since a scaling factor is used in the quantization algorithm, a multiplier is needed for its implementation
Keywords: H.264, forward transform, quantization
Edition: Volume 2 Issue 3, March 2013
Pages: 80 - 83
How to Cite this Article?
G. Dileepvamshi, P. Ramakrishna, "VLSI Implementation of H.264 Transform and Quantization Algorithms", International Journal of Science and Research (IJSR), https://www.ijsr.net/search_index_results_paperid.php?id=IJSROFF2013082, Volume 2 Issue 3, March 2013, 80 - 83
67 PDF Views | 56 PDF Downloads
Similar Articles with Keyword 'H264'
Implementation of H.264 Video Codec for Block Matching Algorithms
Vivek Sinha, Dr. K. S. Geetha
Video Compression by Using H.264/MPEG-4 Advance Video Coding (AVC)
D. Lakshmi Bharathi, K. Prasanthi Jasmine
H.264/AVC Video Encoding with Simultaneous Encryption and Data Hiding Based on Histogram Shifting
Kripa Antony, Savitha T. P.
Similar Articles with Keyword 'quantization'
The Design of Multi Bit Quantizer Sigma-Delta Modulator Analog to Digital Converter
Image Decomposition & Compression using Discrete Wavelet Transform and Sub band Coding
Rimzim Dasondi, Pratibha Nagaich
A Comparative Analysis of Image Error Concealment Technique
Nikita Jain, Vijay Chouhan
Types of Three Filter Banks in FPGA
Information Hiding in Video files Using Frequency Domain
Eman A. E. Ahmed, Hassan H. Soliman, Hossam E. Mostafa