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Perceptual-based HEVC Intra Coding Optimization using Deep Convolution Networks
2019
IEEE Access
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Second, based on the saliency map, a modified rate-distortion optimization (RDO) method is designed to adaptively adjust bit rate allocation. ...
In this paper, we propose a novel perceptual-based intra coding optimization algorithm for the High Efficiency Video Coding (HEVC) using deep convolution networks (DCNs). ...
In order to improve the coding quality of salient regions, a rate-distortion optimization scheme guided by saliency map features is designed. ...
doi:10.1109/access.2019.2910245
fatcat:olffrjyxvrd3nn755e5vivxr3q
Region of interest coding applied to map overlapping in Geographic Information Systems
2007
2007 IEEE International Geoscience and Remote Sensing Symposium
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This paper introduces a novel use of the Region Of Interest (ROI) coding techniques to overcome the drawbacks of the map overlapping in GIS and RS applications. ...
The proposed approach is based on a ROI coding method defined for the JPEG2000 standard that efficiently improves the coding performance and keeps JPEG2000 compliance. ...
ROI-coding based on rate-distortion optimization The ROI coding methods defined in this category benefit from the code-stream organization in layers of increasing quality to allocate the ROIs in the first ...
doi:10.1109/igarss.2007.4423984
dblp:conf/igarss/Bartrina-RapestaLSZPM07
fatcat:qhwifvvs3bdt3kaogvpcicihju
Rendering Distortion Estimation Model for 3D High Efficiency Depth Coding
2014
Mathematical Problems in Engineering
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In this paper, a modified distortion estimation model is proposed based on view rendering distortion instead of depth map distortion itself and can be applied to the high efficiency video coding (HEVC) ...
rate distortion cost function process for rendering view quality optimization. ...
3D video coding. ...
doi:10.1155/2014/940737
fatcat:4nkluxe3qzhh5h3dw2a7cahmda
Editorial
2009
Journal of Real-Time Image Processing
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The first stage consists of a predictive step based on the rate distortion costs of neighboring and collocated macroblocks. ...
In the paper, ''Real-time Interactive Regions of Interest in H.264/AVC'', Lambert et al. show two methods for adaptively changing at decoding time the size and position of the coded Regions of Interest ...
doi:10.1007/s11554-009-0112-6
fatcat:rd42sjdlobhgliax6trgsqnzda
Lossy Event Compression based on Image-derived Quad Trees and Poisson Disk Sampling
[article]
2020
arXiv
pre-print
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2020 pre-print arXiv:2005.00974v1 fatcat:ef46qdqj65f7zhpvokqizc3wva
Our Poisson Disk Sampling based Lossy Event Compression (PDS-LEC) algorithm performs rate-distortion based optimal allocation. ...
To address this problem, we propose a novel event compression algorithm based on a quad tree (QT) segmentation map derived from the adjacent intensity images. ...
The algorithm relies on a QT segmentation map which for identifying the regions of interest. ...
arXiv:2005.00974v2
fatcat:oyysvj3lonhbbottwimwngiygq
Visual Analysis Motivated Rate-Distortion Model for Image Coding
[article]
2021
arXiv
pre-print
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Then, a novel CTU-level bit allocation model is proposed based on ROIM and the local texture characteristics of each CTU. ...
We first propose the region of interest for machine (ROIM) to evaluate the degree of importance for each coding tree unit (CTU) in visual analysis. ...
Rate Distortion Optimization In this section, a novel RDO model based on CNN extracting features is proposed. ...
arXiv:2104.10315v1
fatcat:aygp5evp55gchltgoqjpgyynnm
Page 8041 of Mathematical Reviews Vol. , Issue 2003j
[page]
2003
Mathematical Reviews
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The Internet Archive has digitized a microfilm copy of this work. It may be possible to borrow a copy for reading.
We propose a novel linear block-coding scheme based on the Khatri-Rao matrix product. ...
We also obtain a new outer bound on the rate-distortion region which enhances the outer bound due to Witsenhausen and Wyner. ...
Model-aided coding of multi-viewpoint image data
2000
Proceedings 2000 International Conference on Image Processing (Cat. No.00CH37101)
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The paper presents a novel coding technique based on approximate geometry for images taken from arbitrary recording positions around a 3-D scene. ...
The images are hierarchically coded to ensure efficient exploitation of inter-image similarities. The coding scheme is capable of generating novel views by texturizing the available geometry model. ...
INTRODUCTION In image-based rendering (IBR), a set of images of a three-dimensional scene is used to create novel views of the depicted setting [1, 2] . ...
doi:10.1109/icip.2000.899866
dblp:conf/icip/MagnorEG00
fatcat:ncobiakojffnpp3j7y3smjtt6q
Dynamic Coding For Visual Communications
1996
Zenodo
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Publication in the conference proceedings of EUSIPCO, Trieste, Italy, 1996 ...
As illustrative example of the approach, a video compression system based on the principles of dynamic coding has also been presented. ...
CONCLUSIONS This paper has introduced a novel approach, named dynamic coding, to the problem of visual data compaction in the context of multimedia. ...
doi:10.5281/zenodo.36397
fatcat:qd2wxgphkbgddph6qo5cmjvj5i
Dynamic approach to visual data compression
1997
IEEE transactions on circuits and systems for video technology (Print)
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This paper presents the EPFL proposal to MPEG-4 video coding standardization activity 1 . The proposed technique is based on a novel approach to audio-visual data compression entitled dynamic coding. ...
The major characteristics of dynamic coding are reviewed, along with simulation results showing the performance of such an approach i n a v ery low bitrate video coding environment. ...
In this example, the optimal admissible coding strategy is de ned as the one which minimizes the distortion subject to a maximum rate constraint. ...
doi:10.1109/76.554430
fatcat:b4tggypfxjb7letfwqpj7xxkrq
Optimized Adaptive Encoding Based on Visual Attention
2017
Journal of Engineering Science and Technology Review
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To reduce the impact of visual redundancy on video coding, a novel method of distinguishing the level of image attention was proposed in this study. ...
Thus, the proposed method provides a bright prospect for optimizing the design of encoding strategies. ...
Hua K L et al. presented a novel block-based image coding algorithm that applied a tree-structured multi-tree dictionary and a perceptual rate distortion optimization scheme [11] . ...
doi:10.25103/jestr.105.14
fatcat:fnzfsmvyurghphnrmpevmposbu
Object-based video coding with dynamic quality control
2010
Image and Vision Computing
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This paper presents a novel MPEG-4 priority-based multiple video objects coding system integrating User Visual Attention Model (UVAM) and Dynamic Bit Allocation (DBA) rate control mechanism. ...
The first contribution of the paper is an object-based UVAM utilizing a two-level structure and a blob extraction algorithm. ...
region-based coding com- plexity. ...
doi:10.1016/j.imavis.2009.08.005
fatcat:i5ouiwbwcbavjfa3koojot4r7y
Introduction to the special section on 3D representation, compression, and rendering
2013
IEEE Transactions on Image Processing
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He was a key contributor to the Multiview Video Coding extension of the H.264/MPEG-4 AVC standard and currently serves as the Head of the U.S. delegation to MPEG. ...
where he is currently a Group Manager responsible for research and standardization on video coding, as well as work on display processing, information security, sensing technologies, and speech/audio processing ...
Then, in the paper "Regional Bit Allocation and RD Optimization for Multiview Depth Video Coding with View Synthesis Distortion Model," by Zhang et al., a model of the view synthesis distortion for regions ...
doi:10.1109/tip.2013.2268373
pmid:24052142
fatcat:k2o3kcjrnveqfpijoqug757tiu
On Quantizer Design to Exploit Common Information in Layered Coding of Vector Sources
[article]
2018
arXiv
pre-print
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The flexibility of sharing only a properly selected subset of information from a lower quality level with the higher quality level, enables achieving operating points between conventional scalable coding ...
The key challenge is to optimally encode all the required quality levels with efficient usage of storage and networking resources. ...
ACKNOWLEDGMENT The authors would like to thank NSF funding under the code of NSF-CCF-1016861 and NSF-CCF-1320599. ...
arXiv:1802.02702v1
fatcat:aina7moy2nf5bfeqq2igak4qdy
A Novel Paradigm for Optimized Scalable Video Transmission Based on JPEG2000 with Motion
2007
2007 IEEE International Conference on Image Processing
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A novel paradigm for optimized scalable video streaming is presented. ...
The paradigm proposes transmission of motion vectors and selected code-blocks of the JPEG 2000 representation of each new frame, instead of frame differences as in existing methods. ...
Further benefits are expected if more than two frames are optimized at a time. Figure 1 , 1 which shows a typical rate-distortion curve for a code-block C β p . ...
doi:10.1109/icip.2007.4379773
dblp:conf/icip/NamanT07
fatcat:pljth5rmcfghjn43q5wp5eaite
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