搜索结果: 1-15 共查到“计算机科学技术 video coding”相关记录38条 . 查询时间(0.209 秒)
Witsenhausen–Wyner Video Coding
Distributed video coding error resilience syndrome coding.
2011/8/21
Inspired by Witsenhausen and Wyner’s 1980 (nowexpired) patent on “interframe coder for video signals,” thispaper presents a Witsenhausen–Wyner video codec, where themotion-compensated previously decod...
RATE-SSIM OPTIMIZATION FOR VIDEO CODING
SSIM index rate distortion optimization reduced-reference image quality assessment Lagrange multiplier rate-SSIM optimization
2011/7/24
The structural similarity (SSIM) index has been found to bea good indicator of perceived image quality. In this paper,we propose a rate-SSIM optimization scheme for mode selection in H.264/AVC video c...
Up-sampling Dependent Frame Rate Reduction for Low Bit-rate Video Coding
Up-sampling Dependent Frame Rate Video Coding
2011/7/24
In low bit rate video coding, the frame rate of input sequence can be reduced to the half or even smaller portion by skipping or deleting frames before compression, and then the temporal resolution is...
SSIM-INSPIRED DIVISIVE NORMALIZATION FOR PERCEPTUAL VIDEO CODING
SSIM index rate distortion optimization residual divisive normalization H.264/AVC coding
2011/7/18
We propose a perceptual video coding framework based on anSSIM-inspired divisive normalization scheme as an attemptto transform the DCT domain frame prediction residuals toa perceptually uniform space...
A Novel Rate Control Technique for Multiview Video Plus Depth Based 3D Video Coding
Multiview video coding rate control video plus depth representation 3D video coding
2011/2/24
This paper presents a novel rate control technique formultiview video plus depth (MVD) based 3D video coding. In theproposed rate control technique, an image-stitching method is firstutilized to...
CONSTANT QUALITY CONTROL OF WYNER-ZIV FRAMES IN DCT DOMAIN DISTRIBUTED VIDEO CODING
Distributed video coding Constant quality control Greedy algorithm Adaptive uniform quantizer
2010/12/10
For most DCT domain distributed video coding systems, xed uniform quan-tizers are used to quantize all Wyner-Ziv (WZ) frames. However, it leads to uctuantvideo quality because the WZ frame quality is...
AUTO-REGRESSIVE MODEL BASED ERROR CONCEALMENT SCHEME FOR STEREOSCOPIC VIDEO CODING
Stereoscopic video coding error concealment auto-regressive model tempora emporalinterview
2010/7/24
Stereoscopic video is an important manner for 3-D video applications, and robust stereoscopic video transmission has posed a technical challenge for stereoscopic video coding. In this paper, an auto-r...
Block Adaptive Super Resolution Video Coding
Super-resolution interpolation rate-distortion cost
2009/12/16
Super resolution technique was first proposed for enhancing the image resolution, and then it was expanded to video sequence for obtaining a higher resolution video from low resolution input. Recently...
JOINT LEARNING FOR SIDE INFORMATION AND CORRELATION MODEL BASED ON LINEAR REGRESSION MODEL IN DISTRIBUTED VIDEO CODING
Side information correlation model linear regression model joint learning distributed video coding
2009/11/16
The coding efficiency of distributed video coding system is significantly determined by the side information quality and correlation model. Motivated by theoretical analysis of the maximum likelihood ...
Distributed Video Coding Based on the Human Visual System
Distributed video coding human visual system
2009/7/16
This letter proposes a distributed video coding (DVC)scheme based on the human visual system (HVS). As we know,HVS can seldom sense any changes below the just-noticeable-difference (JND) distortion th...
Joint video/depth rate allocation for 3D video coding based on view synthesis distortion model
3D video coding Rate allocation Distortion model View synthesis
2009/7/16
Joint video/depth rate allocation is an important optimization problem in 3D video coding. To address this problem, this paper proposes a distortion model to evaluate the synthesized view without acce...
Modeling Correlation Noise Statistics at Decoder for Multi-view Distributed Video Coding
Multi-view video coding distributed video coding correlation model
2009/5/16
Recently, multi-view distributed video coding (MDVC) receives more and more attention, as its lowcomplexity encoder and high-complexity decoder coding paradigm suits for many applications such as sens...
IMPROVED LOW DELAY DISTRIBUTED VIDEO CODING
Distributed video coding side information quincunx pattern DPCM coding
2009/5/16
This paper proposes an image partition based approach to enhance side information quality in low delay distributed video coding (DVC). The proposed method employs a checkerboard pattern to group block...
A ROI QUALITY ADJUSTABLE RATE CONTROL SCHEME FOR LOW BITRATE VIDEO CODING
region of interest rate control SSIM
2009/5/16
This paper proposed a novel Region of Interest (ROI) based rate control algorithm for video communication systems, in which the subjective quality of ROI can be adjusted according to users’ requiremen...
LOCAL ADAPTIVE LEARNING AND FUSION FOR SIDE INFORMATION INTERPOLATION IN DISTRIBUTED VIDEO CODING
Side information interpolation distributed video coding equivalent kernel spatio-temporal local adaptive learning fusion
2009/5/16
Motivated by theoretical analysis of the curve fitting problem based on equivalent kernel, in this paper we propose a local adaptive learning and fusion model for side information interpolation in dis...