Seamless Montage for Texturing Models

Gal, Ran; Wexler, Yonatan; Ofek, Eyal; Hoppe, Hugues; Cohen–Or, Daniel

doi:10.1111/j.1467-8659.2009.01617.x

Cited by 115 publications

(73 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…This is essentially due to the low resolution of the cameras, and to the difficulty of handling the peculiar illumination provided by the projector. Other systems have been proposed which take into account also the color, but they are not able to achieve real-time performances [6] or to reconstruct the geometry in an accurate way [7].…”

Section: A Real-time 3d Scanningmentioning

confidence: 99%

From the Digitization of Cultural Artifacts to the Web Publishing of Digital 3D Collections: an Automatic Pipeline for Knowledge Sharing

Larue¹,

Benedetto²,

Dellepiane³

et al. 2012

JMM

View full text Add to dashboard Cite

Abstract-In this paper, we introduce a novel approach intended to simplify the production of multimedia content from real objects for the purpose of knowledge sharing, which is particularly appropriate to the cultural heritage field. It consists in a pipeline that covers all steps from the digitization of the objects up to the Web publishing of the resulting digital copies. During a first stage, the digitization is performed by a high speed 3D scanner that recovers the object's geometry. A second stage then extracts from the recovered data a color texture as well as a texture of details, in order to enrich the acquired geometry in a more realistic way. Finally, a third stage converts these data so that they are compatible with the recent WebGL paradigm, then providing 3D multimedia content directly exploitable by end-users by means of standard Internet browsers. The pipeline design is centered on automation and speed, so that it can be used by non expert users to produce multimedia content from potentially large object's collections, like it may be the case in cultural heritage. The choice of a high speed scanner is particularly adapted for such a design, since this kind of devices has the advantage of being fast and intuitive. Processing stages that follow the digitization are both completely automatic and "seamless", in the sense that it is not incumbent upon the user to perform tasks manually, nor to use external softwares that generally need additional operations to solve compatibility issues.

show abstract

Section: A Real-time 3d Scanningmentioning

confidence: 99%

From the Digitization of Cultural Artifacts to the Web Publishing of Digital 3D Collections: an Automatic Pipeline for Knowledge Sharing

Larue¹,

Benedetto²,

Dellepiane³

et al. 2012

JMM

View full text Add to dashboard Cite

show abstract

“…The cost function is designed so that light probes with a good resolution in the direction of the pixel are preferred and uses smoothness constraints to avoid visible seams in the resulting textures. The approach is similar to previous methods for high quality texture projection [68,131], but extended to handle omnidirectional source images with considerable distortion in angles close to the backward facing direction.…”

Section: Reconstructing the Scene Modelmentioning

confidence: 94%

Physically Based Rendering of Synthetic Objects in Real Environments

Kronander¹

2015

View full text Add to dashboard Cite

Description of the cover imageRendering of virtual furniture illuminated with spatially varying real world illumination captured in a physical environment at IKEA Communications AB.The virtual scene was modeled by Sören and Per Larsson. Physically based rendering of synthetic objects in real environmentsCopyright © 2015 Joel Kronander (unless otherwise noted) Division of Media and Information TechnologyDepartment of Science and Technology Campus Norrköping, Printed in Sweden by LiU-Tryck, Linköping, 2015 AbstractThis thesis presents methods for photorealistic rendering of virtual objects so that they can be seamlessly composited into images of the real world. To generate predictable and consistent results, we study physically based methods, which simulate how light propagates in a mathematical model of the augmented scene. This computationally challenging problem demands both efficient and accurate simulation of the light transport in the scene, as well as detailed modeling of the geometries, illumination conditions, and material properties. In this thesis, we discuss and formulate the challenges inherent in these steps and present several methods to make the process more efficient.In particular, the material contained in this thesis addresses four closely related areas: HDR imaging, IBL, reflectance modeling, and efficient rendering. The thesis presents a new, statistically motivated algorithm for HDR reconstruction from raw camera data combining demosaicing, denoising, and HDR fusion in a single processing operation. The thesis also presents practical and robust methods for rendering with spatially and temporally varying illumination conditions captured using omnidirectional HDR video. Furthermore, two new parametric BRDF models are proposed for surfaces exhibiting wide angle gloss. Finally, the thesis also presents a physically based light transport algorithm based on Markov Chain Monte Carlo methods that allows approximations to be used in place of exact quantities, while still converging to the exact result. As illustrated in the thesis, the proposed algorithm enables efficient rendering of scenes with glossy transfer and heterogenous participating media.v Populärvetenskaplig SammanfattningEn av de största utmaningarna inom datorgrafik är att syntetisera, eller rendera, fotorealistiska bilder. Fotorealistisk rendering används idag inom många tillämpningsområden såsom specialeffekter i film, datorspel, produktvisualisering och virtuell verklighet. I många praktiska tillämpningar av fotorealistisk rendering är det viktigt att kunna placera in virtuella objekt i fotografier, så att de virtuella objekten ser verkliga ut. IKEA-katalogen, till exempel, produceras i många olika versioner för att passa olika länder och regioner. Grunden till de flesta bilderna i katalogen är oftast densamma, men symboler och standardmått på möbler varierar ofta för olika versioner av katalogen. Istället för att fotografera varje version separat kan man använda ett grundfotografi och lägga in olika virtuella objekt såsom möbler...

show abstract

“…That means the detail-rich information which is contained in high-resolution photographic images, is completely transmitted to the reconstructed models. Our technique is based on the techniques presented in (Allene et al, 2008), (Gal et al, 2010) and (Lempitsky and Ivanov, 2007) with a few modifications for the energy function: The first term, which measures the visual details of each face, is computed as a combination of a number of visible pixels of a given face and the angle between the face's normal and the looking vector of the camera. The second term, which measures the color continuity between adjacent faces, is computed as difference of the average RGB color per triangle.…”

Section: Discussionmentioning

confidence: 99%

“…The authors in (Allene et al, 2008) proposed to calculate the data term related to the projection area of the 3D triangle in image space. A method in (Gal et al, 2010) introduces the assignment of the faces with a set of transformed images, which compensate the geometric errors, and, applying Poisson blending, removes lighting variations. The methodology proposed in this paper is based on the Markov Random Field approach which allows not only the selection of one best view per face using a special criterion, but also simultaneously apply regularization on the texture assignment to minimize seam visibilities on the face boundaries.…”

Section: Related Workmentioning

confidence: 99%

Consistent Multi-View Texturing of Detailed 3d Surface Models

Davydova

Kuschk

Hoegner³

et al. 2015

ISPRS Ann. Photogramm. Remote Sens. Spatial Inf. Sci.

View full text Add to dashboard Cite

ABSTRACT:Texture mapping techniques are used to achieve a high degree of realism for computer generated large-scale and detailed 3D surface models by extracting the texture information from photographic images and applying it to the object surfaces. Due to the fact that a single image cannot capture all parts of the scene, a number of images should be taken. However, texturing the object surfaces from several images can lead to lighting variations between the neighboring texture fragments. In this paper we describe the creation of a textured 3D scene from overlapping aerial images using a Markov Random Field energy minimization framework. We aim to maximize the quality of the generated texture mosaic, preserving the resolution from the original images, and at the same time to minimize the seam visibilities between adjacent fragments. As input data we use a triangulated mesh of the city center of Munich and multiple camera views of the scene from different directions.

show abstract

Seamless Montage for Texturing Models

Cited by 115 publications

References 22 publications

From the Digitization of Cultural Artifacts to the Web Publishing of Digital 3D Collections: an Automatic Pipeline for Knowledge Sharing

From the Digitization of Cultural Artifacts to the Web Publishing of Digital 3D Collections: an Automatic Pipeline for Knowledge Sharing

Physically Based Rendering of Synthetic Objects in Real Environments

Consistent Multi-View Texturing of Detailed 3d Surface Models

Contact Info

Product

Resources

About