For the past few years, the capacity of global networks and communication channels has increased considerably. This allows for real-time applications like video conferencing and video-on-demand using compressed video. State-of-the-art video coding solutions such as H.263, MPEG-2 and MPEG-4 all have one goal in common: to achieve highest possible image quality for lowest possible bit-rate. Durin...

The newest H.265/HEVC video coding standard adopts the quadtree-structured coding unit (CU) to match various texture characteristics of image. Therefore, H.265/HEVC can achieve significantly better coding efficiency than all existing video coding standards such as H.264/AVC. However, the computational complexity of the H.265/HEVC encoder increases dramatically due to its recursive quadtree repr...

Motion estimation is one of the most computationally challenging parts of any video encoder. An estimated 50% to 70% encoder complexity is due to motion estimation. Recent video coding standards like H.264/MPEG-4(AVC) and HEVC include a sophisticated motion estimation algorithm called Test Zone Search. This paper examines the algorithms designed to perform Coding Unit type and size selection in...

There has been a growing interest in using different approaches to improve the coding efficiency of modern video codec in recent years as demand for web-based video consumption increases. In this paper, we propose a model-based approach that uses texture analysis/synthesis to reconstruct blocks in texture regions of a video to achieve potential coding gains using the AV1 codec developed by the ...

An efficient coding system is required for immersive teleconference to transmit stereo video. We propose a novel stereo video coding system by exploiting mesh-based disparity estimation and compensation scheme to achieve high coding efficiency and view synthesis ability. Based on the base-layer-enhance-layer structure, this system can provide stereoscopic scalability and compatihility to standa...

This memo describes an RTP payload format for the video coding standard ITU-T Recommendation H.265 and ISO/IEC International Standard 23008-2, both also known as High Efficiency Video Coding (HEVC) and developed by the Joint Collaborative Team on Video Coding (JCT-VC). The RTP payload format allows for packetization of one or more Network Abstraction Layer (NAL) units in each RTP packet payload...

With the development of Internet and video capture techniques, videoconferencing becomes still more popular. However, with the increased size of the video resolution, the volume of the raw videoconferencing video data increases dramatically. The H.265/HEVC video compression standard can efficiently compresses the videoconferencing video, while the high compression rate is at the cost of heavy e...

This paper proposes a robust watermarking method for uncompressed video data against H.264/AVC and H.265/HEVC compression standards. We embed the watermark data in the midrange transform coefficients of a block that is less similar to its corresponding block in the previous and next frames. This idea makes the watermark robust against the compression standards that use the inter prediction tech...

Intra-prediction is amethod for coding standalone frames in video coding. Until now, this hasmainly been done using linear formulae. Using an Artificial Neural Network (ANN)may improve the prediction accuracy, leading to improved coding efficiency. In this degree project, Fully Connected Networks (FCN) and Convolutional Neural Networks (CNN) were used for intra-prediction. Experiments were done...

© 2013 ETRI Journal, Volume 35, Number 6, December 2013 http://dx.doi.org/10.4218/etrij.13.2013.0040 This paper describes the scalable extension of High Efficiency Video Coding (HEVC) to provide flexible highquality digital video content services. The proposed scalable codec is designed on multi-loop decoding architecture to support inter-layer sample prediction and inter-layer motion parameter...