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Low rate distributed quantization of noisy observations
Quantitative distributed network nodes a random variable
2015/8/13
We consider the achievable performance of a network of nodes in which the nodes view a common random variable corrupted by a site specific noise and share low rate information about their observations...
Geometric programming duals of channel capacity and rate distortion
Channel capacity convex optimization duality free energy geometric programming rate distortion
2015/8/11
We show that the Lagrange dual problems of the channel capacity problem with input cost and the rate distortion problem are simple geometric programs. Upper bounds on channel capacity and lower bounds...
RATE-SSIM OPTIMIZATION FOR VIDEO CODING
SSIM index rate distortion optimization reduced-reference image quality assessment Lagrange multiplier rate-SSIM optimization
2013/7/24
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
2013/7/24
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...
WINDOW-LEVEL RATE CONTROL FOR SMOOTH PICTURE QUALITY AND SMOOTH BUFFER OCCUPANCY
Rate Control Smooth Picture Quality ½ - domain Window Buffer Occupancy
2013/7/24
rate control consists of bit allocation and QPdecision on R-QP model. In bit allocation, target bits is further confined if buffer overflows. Meanwhile, rate controlshould also give as smo...
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
2013/7/24
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...
A LOW BIT RATE VOCABULARY CODING SCHEME FOR MOBILE LANDMARK SEARCH
landmark search mobile visual search visual vocabulary boosting, compact visual descriptor
2013/7/24
We present a low bit rate vocabulary coding scheme in thecontext of mobile landmark search. Our scheme exploits location cues to boost a compact subset of visual vocabulary,which is discriminative for...
A LOW BIT RATE VOCABULARY CODING SCHEME FOR MOBILE LANDMARK SEARCH
landmark search mobile visual search visual vocabulary boosting, compact visual descriptor
2013/7/24
We present a low bit rate vocabulary coding scheme in thecontext of mobile landmark search. Our scheme exploits location cues to boost a compact subset of visual vocabulary,which is discriminative for...
SORTING LOCAL DESCRIPTORS FOR LOW BIT RATE MOBILE VISUAL SEARCH
mobile visual search compressive visual descriptors sorting, lossy compression
2013/7/24
State-of-the-art mobile visual search systems put emphasis ondeveloping compact visual descriptors [4][6], which enableslow bit rate wireless transmission instead of delivering an entire query image. ...
Estimating the Value of theta in the Intra Frame for rho-domain Rate Control Algorithms
Intra Frame rho-domain Rate Control Algorithms
2010/12/20
The -domain rate control algorithm is very simple and effective.There is only one parameter, , used in the model. reflects the relationship between the rate and the quantization step. Accurately es...
A Spatio-Temporal Auto Regressive Model for Frame Rate Upconversion
Auto regressive model frame rate upconversion self-feedback training window
2013/7/16
This paper proposes a spatio-temporal auto regressive (STAR) model for frame rate upconversion. In the STAR model, each pixel in the interpolated frame is approximated as the weighted combination of a...
Joint video/depth rate allocation for 3D video coding based on view synthesis distortion model
3D video coding Rate allocation Distortion model View synthesis
2013/7/16
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...
Compression-Induced Rendering Distortion Analysis for Texture/Depth Rate Allocation in 3D Video Compression
Compression-Induced Rendering Distortion Analysis Texture/Depth Rate Allocation 3D Video Compression
2013/7/16
In 3D video applications, the virtual view is generally rendered by the compressed texture and depth. The texture and depth compression with different bit-rate overheads can lead to different virtual ...
A ROI QUALITY ADJUSTABLE RATE CONTROL SCHEME FOR LOW BITRATE VIDEO CODING
region of interest rate control SSIM
2013/7/16
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...
A novel rate estimation model for mode decision of H.264/AVC
Rate estimation mode decision rate-distortion optimization (RDO) Generalized Gaussian distributions (GGD) linear regression H.264/AVC
2013/7/16
To acquire the optimal coding mode of each macroblock, the H.264/AVC encoder exhaustively calculates the ratedistortion cost for all available modes and choosesthe minimum one as the best mode. Theref...