Rate-Distortion Performance for Test Images
Improving the Rate-Distortion Performance in Distributed Video Coding
... the rate control at the decoder. The rate-distortion performance of the Stanford DVC codec is quite significant compared with the Berkley’s ...
136
Rate distortion performance analysis of nested sampling and coprime sampling
... Information rate distortion function is a measure of dis- tortion between the original source and its ...a distortion func- tion which can measure the distortion because of these two sparse ...
8
Rate-distortion and Rate-quality Performance Analysis of HEVC Compression of Medical Ultrasound Videos
... the perceptual quality of the video. Lower bitrate video would require lesser channel resources for transmission and thereby contributes in improving the channel performance. High E ffi ciency Video Coding (HEVC) is ...
7
Rate–distortion theory and human perception
... In Section 4, it was possible to directly estimate the mutual information between the information source and participants’ responses, and use this to compute information-theoretic effi- ciency via Eq. (8). This was ...
18
Rate distortion performance of dual layer motion compensation employing different mesh densities
... 2. RELATIONSHIP BETWEEN MOTION CODING AND RESIDUE CODING Fig 2 illustrates a video coding process where T f and P f are the target and reference/previous frames, respectively. The goal is to convert P f to R f , a ...
6
Partial DNA Assembly: A Rate-Distortion Perspective
... a rate-distortion framework, partial assemblies are usually represented in terms of an assembly graph, making the definition of a distortion measure ...a distortion function for assembly ...
Real Exchange Rate Distortion in Southeast Europe
... pov it = a + αy it + βrerd it + ε it , (15) Testing the model with regard to the underlying assumptions of panel data analysis for heteroskedasticity and autocorrelation has yielded the following results. To test ...
37
An Efficient Rate Distortion Approach for Video Compression
... the rate-distortion ...the distortion multiplier k between 8 and 16 is preferred. Performance improvement could not been seen when high Ks were ...
6
Defocus and geometric distortion correction for projected images on a curved surface
... geometric distortion for projected images on nonideal projection surfaces is ...offer distortion-free images on curved projection surfaces, a camera captures the projected image to estimate ...
7
Robust Motion and Distortion Correction of Diffusion-Weighted MR Images
... poor performance of a weak local search method, as was observed on some of the severely artifacted datasets, can be corrected to a certain degree through a higher emphasis of the exploration capabilities provided ...
135
Assessment of Computerized Method for Correction of Optical Distortion of Facial Images
... the distortion associated with non-metric cameras was examined using a test chart composed of 63 gridiron dots and two CCD cameras: a commercially available camera as the reference and an actual ...
10
Rate-Distortion Evaluation for Two-Layer Coding Systems
... compressed images with corresponding PSNR ...HDR images and 5 ...bit rate when compared to profiles A and B, whereas profile B provides a gain of about ...bit rate, the bit rate of the ...
5
Rate-distortion optimization of HEVC using Lagrangian multiplier
... (HEVC), Rate-Distortion Optimization, Lagrangian ...digital images. The files that comprise these images, however, can be quite large and can quickly take up precious memory space on the ...
5
Test for the null hypothesis of cointegration with reduced size distortion
... (LBIU) test for the null hypothesis of ...based test, and we show that the LBIU test is more powerful in a wide range of local ...LBIU test outperforms the residual-based test in terms ...
29
Rate Control Performance under End-User's Perspective: A Test Tool
... the rate control schemes have been increasingly ...other performance aspects—quality achieved, overhead introduced by the control, and actual throughput after stream adaptation—are difficult to obtain by ...
13
Rate-distortion analysis and traffic modeling of scalable video coders
... Fig. 74. R-D based quality control. In view of the inherent lack of stable quality associated with the base layer, we provided a quality control algorithm to provide constant quality video to end users in both CBR and ...
172
Scalable Fast Rate-Distortion Optimization for H.264/AVC
... coding modes for an MB must be calculated before a deci- sion can be made. This paper has presented a new way for H.264/AVC fast mode decision. Unlike other methods which depend on tem- poral and spatial correlations, we ...
10
Rate-distortion optimised transform competition for intra coding in HEVC
... A similar approach has been carried out in [3], where the quad-tree partitioning is performed using HEVC core transforms to find the optimal residual and test it against a set of RDOTs. As such, the transform ...
5
Unbalanced Multiple Description Video Coding with Rate Distortion Optimization
... (c) generate HR frame and LR frame according to the op- timal Q and k found. 4. SIMULATIONS AND RESULTS The reported results are expressed in terms of the signal- to-noise ratio (SNR) of the luminance components of the ...
10
Rate-distortion optimized wavelet-based irregular mesh coding
... Experimental results show that the proposed coding approach offers fine-grain quality scalability, achieves optimality in rate-distortion sense and improves compression performance over the state of ...
8