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Filters
Weighted mode filtering and its applications to depth video enhancement and coding
2012
2012 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP)
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of the depth map. ...
This paper presents a novel approach for improving the quality of depth video. ...
[7], (c) Trilateral filter [8], (d) Proposed in-loop filter. ...
doi:10.1109/icassp.2012.6289150
dblp:conf/icassp/MinLND12
fatcat:2orxqbq6unbgxi25q5evei3p2q
A graph-based joint bilateral approach for depth enhancement
2014
2014 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP)
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In one scheme, the depth is first upsampled using a conventional method, then followed by a graph-based joint bilateral filtering to enhance edges and reduce noise. ...
In one scheme, the depth is first upsampled using a conventional method, then followed by a graph-based joint bilateral filtering to enhance edges and reduce noise. ...
A trilateral filter was proposed in [2] that extends JBF by making use of the pixel difference in depth map. ...
doi:10.1109/icassp.2014.6853724
dblp:conf/icassp/WangOTV14
fatcat:dwcwtn7llbhq7gshflka2nuqcq
Deep Convolutional Grid Warping Network for Joint Depth Map Upsampling
2020
IEEE Access
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In this paper, we propose a novel approach to upsample depth maps by using geometric deformation instead of pixel value refinement, which is employed in a majority of existing methods. ...
Depth maps play an important role in the representation of 3D information. ...
Jung proposed an adaptive joint trilateral filter, wherein the color and depth maps are simultaneously restored according to the classification of the depth edge [15] . ...
doi:10.1109/access.2020.3015209
fatcat:s7minlrtuvcp7mqxu2sldetrgm
Fast and Effective Region-based Depth Map Upsampling with Application to Location Map-Free Reversible Data Hiding
2020
Journal of Advances in Mathematics and Computer Science
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In this paper, we rst propose a fast and eective region-based depth map upsampling method, and then propose a joint upsampling and location map-free reversible data hiding method, simpled called the JUR ...
The comprehensive experiments have been carried out to not only justify the execution-time and quality merits of the upsampled depth maps by our upsampling method relative to the state-of-the-art methods ...
Related works for depth map upsampling Based on the spatial filter kernel idea [4] , Kopf et al. [5] presented a joint bilateral filtering method for upsampling depth maps. Later, Kim et al. ...
doi:10.9734/jamcs/2020/v35i430268
fatcat:czcghyo4ovepvgs4v3dui4hfhu
Overview of efficient high-quality state-of-the-art depth enhancement methods by thorough design space exploration
2015
Journal of Real-Time Image Processing
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Then, we benchmark all relevant state-of-the-art filter-based temporal post-processing methods on depth accuracy by conducting a parameter space search to find the optimum set of parameters for various ...
High-quality 3D content generation requires high-quality depth maps. ...
[25] propose an adaptive joint trilateral weighted median filter that exploits multiview depth images by extending the joint bilateral filter with a confidence weight. ...
doi:10.1007/s11554-015-0537-z
fatcat:mfzdmkdwh5djtjr6r2ju2arueq
Depth Map Super-Resolution via Multilevel Recursive Guidance and Progressive Supervision
2019
IEEE Access
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Finally, a residual fusion and construction strategy is designed to fuse all residual information and reconstruct the high-resolution depth map. ...
However, compared with a color image, the performance of depth map super-resolution is still poor. ...
In addition, the joint trilateral filters were also proposed, which considered the gradient information of depth map [4] and view synthesis quality [5] . ...
doi:10.1109/access.2019.2914065
fatcat:qkqjwm3wyfc6znzeqgfje3jtpa
A stereoscopic video conversion scheme based on spatio-temporal analysis of MPEG videos
2012
EURASIP Journal on Advances in Signal Processing
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The above-mentioned depth estimation is initially block-based, followed by a locally adaptive joint trilateral upsampling algorithm to reduce the computing load significantly. ...
A recursive temporal filter is used to reduce the possible depth fluctuations (and also artifacts in the synthesized images) resulting from wrong depth estimations. ...
We describe the post-processing in detail here
Locally adaptive joint trilateral upsampling (LA-JTU) Notice that edge misalignment between color and depth images after depth upsampling may cause visual ...
doi:10.1186/1687-6180-2012-237
fatcat:orgtneulr5bzzl4bfk6x7qokry
Depth map artifacts reduction: a review
2020
IET Image Processing
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Depth maps are crucial for many visual applications, where they represent the positioning information of the objects in a three-dimensional scene. ...
Usually, depth maps can be acquired via various devices, including Time of Flight, Kinect or light field camera, in practical applications. ...
Inspired by JBF, noise aware filter for depth upsampling (NAFDU) was proposed by Chen et al. ...
doi:10.1049/iet-ipr.2019.1622
fatcat:fe5szwvvprdspptvsviw2e4dym
Bilateral Filtering: Theory and Applications
2008
Foundations and Trends in Computer Graphics and Vision
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This text provides a graphical, intuitive introduction to bilateral filtering, a practical guide for efficient implementation and an overview of its numerous applications, as well as mathematical analysis ...
The bilateral filter is a non-linear technique that can blur an image while respecting strong edges. ...
Acknowledgments The work of Sylvain Paris at MIT and Frédo Durand was supported by a National Science Foundation CAREER award 0447561 "Transient Signal Processing for Realistic Imagery," an NSF Grant No ...
doi:10.1561/0600000020
fatcat:dishi7qoe5galmgbmlafsfcruy
A Brief Survey of Recent Edge-Preserving Smoothing Algorithms on Digital Images
[article]
2015
arXiv
pre-print
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Examples are bilateral filter, anisotropic diffusion filter, guided filter, trilateral filter etc. ...
Furthermore it provides a realistic notion for efficient implementation with a research scope for hardware realization for further acceleration. ...
Acknowledgement We thank Avik Kotal, Asit Samanta and Rourab Paul for their encouragement and Dr.Kunal Narayan Choudhury for his advice. ...
arXiv:1503.07297v1
fatcat:aimwawy7ijgh5d7kganitefiq4
Guided Depth Map Super-Resolution using Recumbent Y Network
2020
IEEE Access
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Low spatial resolution is a well-known problem for depth maps captured by low-cost consumer depth cameras. ...
In this paper, we propose a recumbent Y network (RYNet) to integrate the depth information and intensity information for depth map SR. ...
[27] present a joint trilateral filtering algorithm that exploits spatial distance, color difference, and local depth gradient for depth map SR. ...
doi:10.1109/access.2020.3007667
fatcat:2ncqv3rbxncwhesslnzyeylyva
Remote Sensing Image Defogging Networks Based on Dual Self-Attention Boost Residual Octave Convolution
2021
Remote Sensing
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The strengthen-operate-subtract (SOS) boosted module is used to fuse the refined feature maps of each network layer with the upsampling feature maps from the corresponding decoding stage. ...
The performance of traditional image defogging methods relies on the fog-related prior knowledge, but they cannot always accurately obtain the scene depth information used in the defogging process. ...
Singh [18] proposed an image dehazing method that used fourth-order partial differential equations based trilateral filter (FPDETF) to enhance the rough estimation of the atmosphere. ...
doi:10.3390/rs13163104
fatcat:guvg7o6px5au7fa5sp5yb6bzpa
Joint Depth Map Upsampling via Prior Minimum Spanning Tree
2016
Proceedings of the 1st International Conference on Information Technologies in Education and Learning
unpublished
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In this paper, we propose a novel depth map upsampling algorithm based on prior minimum spanning tree (pMST). ...
Utilizing the registered color and depth images, we construct a prior map which indicates the probability of the co-occurrence between depth discontinuities and color image edges. ...
Extending traditional bilateral filter to the trilateral filter, Kai-Han Lo et al. [6] utilized the trilateral filter to upsample the depth images with the pre-aligned color images. ...
doi:10.2991/icitel-15.2016.12
fatcat:omdffysfu5e6xgsjwiuaccrzqm
Interactive Depth-Aware Effects for Stereo Image Editing
2013
2013 International Conference on 3D Vision
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In particular, we present methods for highlighted depth-of-field, haze, depth-of-field, and image relighting. ...
This thesis introduces methods for adding user-guided depth-aware effects to images captured with a consumer-grade stereo camera with minimal user interaction. ...
To correct these we use a trilateral filter based on spatial proximity, color similarity, and disparity similarity. ...
doi:10.1109/3dv.2013.42
dblp:conf/3dim/AbbottM13
fatcat:lg425o3zqzdodoc57aoqrgz6h4
A gentle introduction to bilateral filtering and its applications
2007
ACM SIGGRAPH 2007 courses on - SIGGRAPH '07
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Thanks to Paul Debevec and Jack Tumblin for allowing us to use their radiance maps. Thanks to the reviewers for their careful comments. ...
Also thanks to Blaise Agüera y Arcas, Michael Herf, Klaus Schauser, Tobias Höllerer and Ian Gilman for their constructive critiques. To the talented Gretchen Elise for the use of her photo. ...
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. The Trilateral Filter for High Contrast Images and Meshes. ...
doi:10.1145/1281500.1281604
dblp:conf/siggraph/Paris07
fatcat:7hiertzncbe6hptgvrtvwvd3xi
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