搜索结果: 1-15 共查到“计算机科学技术 distortion”相关记录17条 . 查询时间(0.031 秒)
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...
DISTORTION DISTRIBUTION AND CONVERGENCE ANALYSIS OF SPHERICAL DIAMOND DISCRETE GRIDS
Global Discrete Grid Spherical Diamond Discrete Grid Distortion Distribution Convergence Analysis Electrical Potential Energy
2014/4/21
Four kinds of subdivision methods of Global Discrete Grid are presented in this paper. Furthermore, we systematically and
comprehensively compare and analyze the distortion distribution and converge...
A GLOBAL HIERARCHICAL AND EQUAL-AREA SHPERE/ ELLIPSOID GRID AND ITS GEOMETRY DISTORTION ANALYSIS
Global Discrete Gird Hierarchical Grid Equal-Area Snyder Projection Geometry Distortion Analysis Sphere Surface
2014/4/21
A spatial data management and analysis frame is required for global problem application. Global Discrete Grid (GDG) has seamless,
excellent hierarchy characteristics. GDG has been used for spatial d...
The space-time distortion perceived subjectively during saccadic eye movements is an associative phenomenon of a transient shift of observer’s visual frame of reference from one position to another. H...
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 ...
Rate-Distortion Optimization with Inter-View Refreshment for Stereoscopic Video Coding over Error-Prone Networks
Stereoscopic video coding error resilience inter-view refreshment end-to-end distortion model ratedistortion optimization
2013/7/16
Stereoscopic video is a practical and important manner for 3-D video applications, and robust stereoscopic video transmission over error-prone networks has posed a technical challenge for stereoscopic...
Rate Distortion Cost Modeling of Skip Mode and Early Skip Mode Selection for H.264
skip mode fast mod decion rate-distortion cost quantization
2013/7/16
This paper proposed a linear rate-distortion (RD) cost model for skip mode in H.264. The proposed RD cost model is derived theoretically based on the quantization scheme of H.264, and the simulation r...
A DISTORTION INPUT PARAMETER IN IMAGE DENOISING ALGORITHMS WITH WAVELETS
Signal Processing denoising filtering
2010/1/11
The problem of image denoising based on wavelets is considered. The paper
proposes an image denoising method by imposing a distortion input parameter instead
of threshold. The method has two algorit...
Fast Rate Allocation Based on Distortion Estimation Modeling in Scalable Video Coding
rate allocation quantization error distortion estimation FGS NAL unit SVC
2013/7/17
For rate-distortion optimized rate allocation in JVT Scalable Video Coding (SVC), the distortion impact of every FGS NAL unit on the global reconstruction quality is calculated by repeatedly bitstrea...
Smooth Extraction of SVC Fine-Granular SNR Scalable Videos with a Virtual-GOP-Based Rate-Distortion Modeling
Smooth quality rate-distortion analysis scalable video coding (SVC) video coding
2013/7/17
Fine-Granular SNR scalable (FGS) technologies in H.264/AVC-based scalable video coding (SVC) provide a flexible and effective foundation for scaling FGS enhancement layer (EL) to accommodate different...
STATISTICAL ANALYSIS AND MODELING OF RATE-DISTORTION FUNCTION IN SVC FINE-GRANULAR SNR SCALABLE VIDEOS
STATISTICAL ANALYSIS MODELING RATE-DISTORTION FUNCTION SVC FINE-GRANULAR SNR SCALABLE VIDEOS
2010/12/17
In this paper, we propose a simple and effective ratedistortion model of fine-granular SNR scalable (FGS) layer in JVT scalable video coding (SVC). First, we introduce generalized Gaussian distributio...
Complexity-Distortion optimized motion estimation algorithm with fine-granular scalable complexity
Complexity-Distortion optimized motion estimation algorithm fine-granular scalable complexity
2010/12/16
Video encoding now is being implemented in various computing platforms with different computing capability, the requirement on the encoding complexity is also different
according to different applica...
Statistical Model, Analysis and Approximation of Rate-Distortion Function in MPEG-4 FGS Videos
Statistical Model Analysis Approximation Rate-Distortion Function in MPEG-4 FGS Videos
2010/12/16
In this paper, we propose an object detection approach using spatial histogram features. As spatial histograms consist of marginal distributions of an image over local patches, they can preserve textu...
Statistical Model, Analysis and Approximation of Rate-Distortion Function in MPEG-4 FGS Videos
Statistical Model Rate-Distortion Function MPEG-4 FGS Videos
2010/12/15
Fine-granular scalability (FGS) has been accepted as the streaming profile of MPEG-4 to provide a flexible foundation for scaling the enhancement layer (EL) to accommodate variable network capacity. T...