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Intra Prediction Mode Decision for H.264
| International Journal of Computer Applications |
| Foundation of Computer Science (FCS), NY, USA |
| Volume 126 - Number 4 |
| Year of Publication: 2015 |
| Authors: Mamatha R.B., Keshaveni N. |
10.5120/ijca2015906039
|
Mamatha R.B., Keshaveni N. . Intra Prediction Mode Decision for H.264. International Journal of Computer Applications. 126, 4 ( September 2015), 42-46. DOI=10.5120/ijca2015906039
Abstract
Digital video compression has become an integral part of the way we create, consume visual information and communicate, over the last few decades. A robust technique of compression is proposed in this paper for video compression. Reduction of irrelevant or redundant data in order to save the storage space requirements and processing time is nothing but compression. Here H.264/AVC (Advance Video Coding) video coding standard is used for compression. Where I-frames are divided into different macro blocks (MB) and each MB is efficiently compressed using 4 x4 and 16 x16 blocks in H.264/AVC intra prediction. Choosing one of 9 prediction modes for each 4 x4 block with reduced time and less complexity is still a bottleneck. In this paper a gradient based fast intra prediction mode selection method for 4x4 and 16x16 is proposed. The proposed method divides an input frames into variable block sizes based on the texture and performs few mode examinations based on the gradient direction in the given slice. Respective best mode with minimum cost is selected using sum of absolute difference (SAD) and rate distortion optimization (RDO). This process is carried for all the video input frames. Each compressed video frames are combined finally to get a compressed video output.
References
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- Xiaohong Zhang, “Fast Mode Decision And Encryption Policy In H.264/AVC Frame-Skipping Transcoding”, Journal of Computers, Vol. 9, No. 5, May 2014.
- Changsung Kim, “Feature-Based Intra-/Intercoding Mode Selection For H.264/AVC”, IEEE Transactions on Circuits and Systems For Video Technology, Vol. 17, No. 4, 2007.
- Y N Sairam, Nan Ma and Neelu Sinha, “A Novel Partial Prediction Algorithm for Fast 4x4 Intra Prediction Mode Decision in H.264/AVC”, Data Compression Conference, Pp.232-241, 2008.
- A.Elyousfi, A. Tamtaoui and E. Bouyakhf, “Fast Intra Prediction Algorithm for H.264/AVC Based On Quadratic and Gradient Model”, International Journal of Electrical and Electronic Engineering, 2010.
- Xiulian Peng, Jizheng Xu and Feng Wu, “Directional Filtering Transform For Image/Intra-Frame Compression”, IEEE Transactions on Image Processing, Vol.19, No. 11, November 2010.
- Mohammed Golam Sarwer and Q. M. Jonathan Wu, “Improved Intra Prediction of H.264/Avc”, www.Intechopen.Com, 2011.
- Hyoung-Mee Park, Ri-Zhu Jin and Joo-Hee Moon, “Fast Mode Selection Algorithm For Intra 4x4 Block of H.264/AVC”, Pp. 645 - 649, 2011.
- Qi Cai, Li Song, Guichun and Nam Ling, “Lossy and Lossless Intra Coding PerformanceEvaluation: HEVC, H.264/AVC, JPEG 2000 and 2000 and JPEG LS”, Signal & Information Processing Association Annual Summit and Conference (APSIPA ASC), Pp. 1- 9, 2012.
- Bo Shen, Kuo-Hsiang Cheng, Yun Liu and Ying-Hong Wangm, “An Efficient Intra Prediction Algorithm for H.264/AVC High Profile”, Journal of Computers Vol.25, No. 1, 2013.
- Xiaohong Zhang, “Fast Mode Decision And Encryption Policy In H.264/AVC Frame-Skipping Transcoding”, Journal of Computers, Vol. 9, No. 5, May 2014.
- Chitradevi S And Vijayalakshmi K, “ Efficient Document Compression Using Intra Frame Prediction Tecthnique”, IJRET: International Journal of Research in Engineering and Technology, Vol .03, N0.07, 2014.
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