The extension of H.264/AVC hybrid video coding towards scalable video coding (SVC) using motion-compensated temporal filtering (MCTF) is presented. Utilizing the lifting approach to implement MCTF, the motion compensation features of H.264/AVC can be re-used for the MCTF prediction step and extended in a straightforward way for the MCTF update step. The MCTF extension of H.264/AVC is also incor...

REFERENCES METHODS D-264 treatment partially rescued the loss of dopaminergic neurons in SN, inhibited the activation of microglia, and improve the impairment of behaviour caused by MPTP and lactacystin in pole and rotarod tests (data not shown here). The neuroprotective effects of D-264 shown in the present study may partly due to the upregulation of both BDNF and GDNF and the restoration of p...

Received Aug 2, 2013 Revised Oct 14, 2013 Accepted Oct 28, 2013 The H.264/AVC standard achieves remarkable higher compression performance than the previous MPEG and H.26X standards. One of the computationally intensive units in the MPEG and H.26X video coding families is the Discrete Cosine Transform (DCT). In this paper, we propose an efficient implementation of the DCT, inverse DCTs and the H...

The recent H.264 video coding standard introduces an innovative compression tool allowing fast bit-rate switching. The tool, based on the novel syntactic element Switching Pictures (SP), allows flexible rate adaptation and is expecially suitable for streaming applications in wireless networks. This work addresses the modeling of a H.264 source performing bit-rate switching using SP frames. The ...

The H.264/AVC coding standard only specifies the decoding process and the bitstream syntax to allow considerable flexibility for the designers to optimize the encoder for coding performance improvement and complexity reduction. This paper proposes the use of redundant Predicted (Marionette) frames to prevent temporal error propagation in H.264/AVC streaming over error prone wireless channels. C...

H.264/AVC is a hybrid predictive-transform coder. In this paper we propose a more computational efficient approach to implement the prediction module, its most complex stage. The idea is to employ a subset of dominant prediction modes instead of testing all modes recommended by H.264/AVC standard. Results show that, for high definition sequences, the quality loss is negligible allowing us to co...

The proposed method defines the problem of reducing the complexity of H.264 decoding. Since deblocking accounts for a significant percentage of H.264 decoding time. Observing that branch operations are costly and that in the deblocking process there are events with significantly high probability of occurrence. The idea of Hybrid optimization to speed up the boundary strength derivation and the ...

This paper presents a user identification method at H.264 streaming using watermarking with fingerprints. The watermark can efficiently reduce the potential danger of forgery or alteration. Especially a biometric watermark has convenient, economical advantages. The fingerprint watermark can also improve reliability of verification using automated fingerprint identification systems. These algori...

In H.264/AVC standard, the intra-frame prediction scheme is employed for better coding efficiency. Using the already encoded adjacent upper and left pixels, the intra prediction is performed. In this paper, we present an improved intra prediction scheme of H.264/AVC. By taking into account the error of the adjacent bottom and right pixels in intra mode decision, our scheme shows better results ...

In previous techniques of bit rate reduction transcoding, reusing the mode of the input MB is widely adopted. However, directly re-using the mode of input MB will cause additional losses for H.264 bit-rate scaling. Variable-size block-matching based motion estimation makes H.264 much more efficient than other coding standards while increasing its complexity. As the target bit rate changes, the ...