Journal ArticleDOI
Resolution Enhancement in Multi-Image Stereo
Arnav Bhavsar,A. N. Rajagopalan +1 more
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TLDR
This paper proposes an integrated approach to estimate the HR depth and the SR image from multiple LR stereo observations and demonstrates the efficacy of the proposed method in not only being able to bring out image details but also in enhancing theHR depth over its LR counterpart.Abstract:
Under stereo settings, the twin problems of image superresolution (SR) and high-resolution (HR) depth estimation are intertwined. The subpixel registration information required for image superresolution is tightly coupled to the 3D structure. The effects of parallax and pixel averaging (inherent in the downsampling process) preclude a priori estimation of pixel motion for superresolution. These factors also compound the correspondence problem at low resolution (LR), which in turn affects the quality of the LR depth estimates. In this paper, we propose an integrated approach to estimate the HR depth and the SR image from multiple LR stereo observations. Our results demonstrate the efficacy of the proposed method in not only being able to bring out image details but also in enhancing the HR depth over its LR counterpart.read more
Citations
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Journal ArticleDOI
A survey on super-resolution imaging
Jing Tian,Kai-Kuang Ma +1 more
TL;DR: This paper provides a comprehensive review of SR image and video reconstruction methods developed in the literature and highlights the future research challenges.
Proceedings ArticleDOI
Learning Parallax Attention for Stereo Image Super-Resolution
TL;DR: A parallax-attention mechanism with a global receptive field along the epipolar line to handle different stereo images with large disparity variations is introduced and a new and the largest dataset for stereo image SR is proposed.
Patent
Glasses for viewing stereo images
TL;DR: In this paper, a set of spectacles are disclosed for use in viewing images or videos, and include at least two lenses each having an adjustable optical property and an image capture device associated with the spectacles for receiving a digital image comprising a plurality of digital image channels each containing multiple pixels.
Proceedings ArticleDOI
Enhancing the Spatial Resolution of Stereo Images Using a Parallax Prior
TL;DR: A novel method to learn a parallax prior from stereo image datasets by jointly training two-stage networks that enhances the spatial resolution of stereo images significantly more than single-image super-resolution methods.
Proceedings ArticleDOI
Flickr1024: A Large-Scale Dataset for Stereo Image Super-Resolution
TL;DR: Experimental results show that, as compared to the KITTI and Middlebury datasets, the Flickr1024 dataset can help to handle the over-fitting problem and significantly improves the performance of stereo SR methods.
References
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Proceedings ArticleDOI
Super-Resolution Image Reconstruction using the ICM Algorithm
TL;DR: This work proposes a procedure for super-resolution image reconstruction based on Markov random fields (MRF), where a Potts-Strauss model is assumed for the a priori probability density function of the actual image.
Proceedings ArticleDOI
Robust space-variant super-resolution
K. V. Suresh,A. N. Rajagopalan +1 more
TL;DR: This paper uses a maximum a posteriori-Markov random field (MAP-MRF) based approach for recovering the high-resolution image and shows that modeling by MRF lends robustness to errors in estimation of motion and blur parameters.
Approximate Labeling via the Primal-Dual Schema
TL;DR: A linear programming based framework is presented which is capable of providing combinatorial-based approximation algorithms to a certain class of NP-complete classification problems and it is shown that state-of-the-art classification techniques can be derived merely as a special case of the considered framework.