In H.264/AVC, an integer 4×4 transform is used instead of traditional float DCT transform due to its low complexity and exact reversibility. Combined with the normalization for the integerr transform together, a division-free quantization scheme is used in H.264/AVC. H.264/AVC is the most outstanding video coding standard at far. But at first H.264/AVC targets to low bit-rate coding, and almost...

This paper proposes a new copyright protection and video error detection scheme for H.264 video using information embedding technique and turbo coding. There are two categories of information to be embedded into the intra frames of H.264 video at the encoder. These are the turbo coded copyright information and the parity bit of the sums for the non-zero coefficients in 8x8 sub-blocks. These two...

High definition Video (HDV) is increasingly becoming common feature in video display devices as it provides superior level of details in comparison to standard video. Latest video compression standard, H.264/AVC can be used for storage and efficient transmission over network. However, blocking artifacts are introduced due to loss of correlation between blocks during compression process. H.264/A...

This paper introduces the performance and technical features of the new generation international video coding standard H.264 as well as discusses the implementation and optimization of H.264 on mobile device. Optimization is proposed at algorithm/code-level for both encoder and decoder to make it feasible to perform real-time H.264/AVC video encoding/decoding on mobile device for mobile multime...

High Efficiency Video Coding (HEVC) standard will soon reach its final draft. To provide the widely deployed H.264/AVC devices with HEVC video contents, transcoding pre-encoded HEVC video into H.264/AVC format is highly necessary. Computational complexity of H.264 hinders real-time transcoding. In this paper, we propose an efficient HEVC to H.264 intra frame transcoder to accelerate the time-co...

With the increasing usage of multimedia contents and advancement of the communication devices (along with services), there is a heavy demand of an effective multimedia compression protocol. In this regards, H.264 has been proven to be an effective video compression standard; however, its computational complexity associated with out and various other issues has been impediment towards mainstream...

Compared with the scalable parts of previous video coding specifications, the Scalable Video Coding (SVC) extension of H.264 Advanced Video Coding (AVC) standard (short for H.264/SVC) has demonstrated significant improvement of video compression performance. In this paper, different coding methods for scalability are analyzed and their influence on the performance of H.264/SVC is investigated t...

H.264/AVC has been widely applied to various applications. However, a new video compression standard, High Efficient Video Coding (HEVC), had been finalized in 2013. In this work, a fast transcoder from H.264/AVC to HEVC is proposed. The proposed algorithm includes the fast prediction unit (PU) decision and the fast motion estimation. With the strong relation between H.264/AVC and HEVC, the mod...

BACKGROUND Mycotic keratitis is an important cause of corneal blindness world over including India. Geographical location and climate are known to influence the profile of fungal diseases. While there are several reports on mycotic keratitis from southern India, comprehensive clinico-microbiological reports from eastern India are few. The reported prevalence of mycotic keratitis are 36.7%,36.3%...

s of the International Liver CongressTM 2011.Clinical Practice Guidelines 264Journal of Hepatology 2011 vol. 55 j 245–264