Image registration for image-based rendering

Siu, A.M.K.; Lau, Rynson W. H.

doi:10.1109/tip.2004.840690

Cited by 29 publications

(13 citation statements)

References 33 publications

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“…Relief occlusion‐adaptive mesh (ROAM), a particular geometric proxy, is a hybrid 2D/3D triangular meshing to respectively represent the consistent part of the scene and the conflicting part of visibility variation , that is, 3D triangles represent common regions of the scene in the 3D spatial domain, and 2D triangles represent the occluded regions visible only to individual images. Thus, the 3D meshes (i.e.…”

Section: Related Workmentioning

confidence: 99%

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Virtual cubic panorama synthesis based on triangular reprojection

Zhang¹,

Dubois

Zhao

2013

Computer Animation & Virtual

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Cubic panoramas provide an efficient solution to the implementation of immersive and omnidirectional displays for image-based virtual navigation. To allow unrestricted navigation through the environment, a system must be capable of constructing novel views given the reference images, typically, cubic panoramas. This paper proposes a processing pipeline for cubic panorama synthesis based on 2D/3D triangular reprojection. This pipeline uses matching features to implement the triangular meshing on cubic panoramas, and introduces the matching line constraint, which significantly reduces the artifacts of straight-line features in the rendered image and accelerates the division process. The modules of this pipeline take the geometrical characteristics of cubic panorama into account. Thus, it can handle the discontinuities of the cube edges when the triangular mesh covers different faces. Furthermore, these modules could be reconfigured to compose customized pipelines and generate virtual cubic panoramas of different quality based on the amount of features. The performance and efficiency of the proposed pipeline is demonstrated with comparison experiments.

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Section: Related Workmentioning

confidence: 99%

“…In view of the established rendering approach in Ref. , our work focuses on the former representation stage.…”

Section: Pipeline Of Virtual Cubic Panorama Synthesismentioning

confidence: 99%

Virtual cubic panorama synthesis based on triangular reprojection

Zhang¹,

Dubois

Zhao

2013

Computer Animation & Virtual

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“…Feature-point-based methods: Siu and Lau [6] proposed an image registration technique for view rendering. Their aim is to reduce the number of required images for the matching step.…”

Section: Figure 1 Flow Chart Of Intermediate View Synthesismentioning

confidence: 99%

Intermediate View Synthesis Based on Adaptive BP Algorithm and View Interpolation

Wang¹,

Zhao²

2010

JCIT

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This paper presents a novel intermediate view synthesis method based on adaptive belief propagation (BP) algorithm and view interpolation. First, we raise the accuracy in disparity estimation by introducing an adaptive BP algorithm. Then, image pairs are divided into three kinds of regions. Finally, intermediate view is obtained by applying a new interpolation method to each region. Experimental results indicate that the proposed method can synthesize virtual images with high quality and performs better than a latest method.

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“…For example, image rendering algorithms are often employed to eliminate the reflection, or 'noise', encountered in optically unfavorable settings [12][13][14] . We had initially anticipated that the turbidity of amniotic fluid, particularly later in gestation, would require such a system.…”

Section: Color Version Available Onlinementioning

confidence: 99%

Optical Properties of Human Amniotic Fluid: Implications for Videofetoscopic Surgery

et al. 2009

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Objective: Videofetoscopy typically demands the substitution of oft-turbid amniotic fluid with clear crystalloid. This maneuver can be cumbersome and may lead to complications. We sought to determine the optical properties of the amniotic fluid, as a pre-requisite for optimizing video image processing during videofetoscopy and eventually avoid amniotic fluid replacement. Methods: Human amniotic fluid samples (n = 21) were procured at 19–36 weeks of gestation. Optical refraction and reflection indices were recorded as percentages of light transmission through the fluid using an integrated spectrometer covering wavelengths of 400–950 nm, with 1.0 nm resolution. Statistical analysis was by one-way ANOVA (p < 0.05). Results: Peak optical refraction fell within a relatively limited window of the near-infrared spectrum, at 848.1 ± 52.3 nm, regardless of gestational age or overall light absorbance. Within the visible spectrum, transmission was highest at the highest wavelengths. A statistically significant inverse relationship existed between gestational age and overall light transmission. Light reflection was negligible in all samples. Conclusions: Light transmission through amniotic fluid is optimal in the near-infrared spectrum and at the highest visible wavelengths, regardless of gestational age. Overall light transmission through amniotic fluid decreases throughout gestation. The light source and camera of videofetoscopy systems should be designed accordingly, possibly obviating the need for routine intraoperative amniotic fluid exchange.

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Image registration for image-based rendering

Cited by 29 publications

References 33 publications

Virtual cubic panorama synthesis based on triangular reprojection

Virtual cubic panorama synthesis based on triangular reprojection

Intermediate View Synthesis Based on Adaptive BP Algorithm and View Interpolation

Optical Properties of Human Amniotic Fluid: Implications for Videofetoscopic Surgery

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