Results 21 to 30 of about 265,195 (378)
Temporal video transcoding from H.264/AVC-to-SVC for digital TV broadcasting [PDF]
, 2015 Mobile digital TV environments demand flexible video compression like scalable video coding (SVC) because of varying bandwidths and devices. Since existing infrastructures highly rely on H.264/AVC video compression, network providers could adapt the ...
Cuenca, P +5 more
core +1 more source
Evolutionary strategy based improved motion estimation technique for H.264 video coding [PDF]
, 2006 In this paper we propose an improved motion estimation algorithm based on evolutionary strategy (ES) for H.264 video codec applied to video. The proposed technique works in a parallel local search for macroblocks.
Arachchi, HK +3 more
core +1 more source
Fast intra-prediction algorithm in H. 264(H. 264快速帧内预测算法)
Zhejiang Daxue xuebao. Lixue ban, 2006 在新制定的H. 264视频编解码标准中，帧内预测是一项重要的技术.它利用周围像素预测当前块来降低空间冗余，能极大地提高H. 264的编码效率.然而，帧内预测的4×4及16×16预测分别有9种和4种模式.为选出最佳模式，全搜索算法需要花费极大的计算量.为了降低帧内预测的复杂度，提出了一种快速帧内预测算法.该算法针对全I帧编码，充分利用了时域、空域及不同块大小间的相关性来预测当前块的最佳模式，并结合提前中止算法来减少不必要的模式选择计算.实验结果表明：与全搜索相比，文中提出的算法能减少50%〜75 ...
YANGLi-bo(杨黎波) +2 more
doaj +1 more source
Interpolation free subpixel accuracy motion estimation [PDF]
, 2006 Licensed and exploited by ProVision Communications Technologies Ltd. Accurate motion estimation at sub pixel resolution is computationally complex. Method overcomes difficulties of subpixel search in real time implementation of H.264 codec, through ...
Bull, DR +3 more
core +2 more sources
A Novel H.264/AVC Based Multi-View Video Coding Scheme [PDF]
, 2008 This paper investigates extensions of H.264/AVC for compressing multi-view video sequences. The proposed technique re-sorts frames of sequences captured by multiple cameras looking at a person in a scene from different views and generates a single video ...
Agrafiotis, D +4 more
core +2 more sources
Complexity adaptation in H.264/AVC video coder for static cameras [PDF]
, 2009 H.264/AVC uses variable block size motion estimation (VBSME) to improve coding gain. However, its complexity is significant and fixed regardless of the required quality or of the scene characteristics. In this paper, we propose an adaptive complexity
Kim, Chanyul, O'Connor, Noel E.
core +1 more source
No-reference bitstream-based impairment detection for high efficiency video coding [PDF]
, 2012 Video distribution over error-prone Internet Protocol (IP) networks results in visual impairments on the received video streams. Objective impairment detection algorithms are crucial for maintaining a high Quality of Experience (QoE) as provided with ...
De Cock, Jan +5 more
core +1 more source
3D high definition video coding on a GPU-based heterogeneous system [PDF]
, 2013 H.264/MVC is a standard for supporting the sensation of 3D, based on coding from 2 (stereo) to N views. H.264/MVC adopts many coding options inherited from single view H.264/AVC, and thus its complexity is even higher, mainly because the number of ...
Claver, Jose M +7 more
core +2 more sources
H.264/AVC Video Compression on Smartphones [PDF]
, 2017 In this paper, we studied the usage of H.264/AVC video compression tools by the flagship smartphones. The results show that only a subset of tools is used, meaning that there is still a potential to achieve higher compression efficiency within the H.264 ...
Markov, Nikolai Grigorevich +1 more
core +2 more sources
Video adaptation for mobile digital television [PDF]
, 2010 Mobile digital television is one of the new services introduced recently by telecommunications operators in the market. Due to the possibilities of personalization and interaction provided, together with the increasing demand of this type of portable ...
Cuenca, Pedro +6 more
core +2 more sources