System identification: theory for the user
System identification: theory for the user
A New Sense for Depth of Field
IEEE Transactions on Pattern Analysis and Machine Intelligence
Fundamentals of digital image processing
Fundamentals of digital image processing
Shape from shading
Three-dimensional computer vision: a geometric viewpoint
Three-dimensional computer vision: a geometric viewpoint
IEEE Transactions on Pattern Analysis and Machine Intelligence
Signals & systems (2nd ed.)
A Variational Approach to Recovering Depth From Defocused Images
IEEE Transactions on Pattern Analysis and Machine Intelligence
Proceedings of the 25th annual conference on Computer graphics and interactive techniques
A Flexible New Technique for Camera Calibration
IEEE Transactions on Pattern Analysis and Machine Intelligence
Separation of Transparent Layers using Focus
International Journal of Computer Vision
IEEE Transactions on Pattern Analysis and Machine Intelligence
A Variational Approach to Shape from Defocus
ECCV '02 Proceedings of the 7th European Conference on Computer Vision-Part II
Better optical triangulation through spacetime analysis
ICCV '95 Proceedings of the Fifth International Conference on Computer Vision
iLamps: geometrically aware and self-configuring projectors
ACM SIGGRAPH 2003 Papers
Spacetime faces: high resolution capture for modeling and animation
ACM SIGGRAPH 2004 Papers
Non-photorealistic camera: depth edge detection and stylized rendering using multi-flash imaging
ACM SIGGRAPH 2004 Papers
Synthetic aperture confocal imaging
ACM SIGGRAPH 2004 Papers
Spacetime Stereo: A Unifying Framework for Depth from Triangulation
IEEE Transactions on Pattern Analysis and Machine Intelligence
A Geometric Approach to Shape from Defocus
IEEE Transactions on Pattern Analysis and Machine Intelligence
A Projector-Camera System with Real-Time Photometric Adaptation for Dynamic Environments
CVPR '05 Proceedings of the 2005 IEEE Computer Society Conference on Computer Vision and Pattern Recognition (CVPR'05) - Volume 1 - Volume 01
Scene-Adapted Structured Light
CVPR '05 Proceedings of the 2005 IEEE Computer Society Conference on Computer Vision and Pattern Recognition (CVPR'05) - Volume 2 - Volume 02
ACM SIGGRAPH 2005 Papers
ACM SIGGRAPH 2005 Papers
A Graph Cut Algorithm for Generalized Image Deconvolution
ICCV '05 Proceedings of the Tenth IEEE International Conference on Computer Vision - Volume 2
Enabling View-Dependent Stereoscopic Projection in Real Environments
ISMAR '05 Proceedings of the 4th IEEE/ACM International Symposium on Mixed and Augmented Reality
Computing depth under ambient illumination using multi-shuttered light
CVPR'04 Proceedings of the 2004 IEEE computer society conference on Computer vision and pattern recognition
Efficient graphical models for processing images
CVPR'04 Proceedings of the 2004 IEEE computer society conference on Computer vision and pattern recognition
High-accuracy stereo depth maps using structured light
CVPR'03 Proceedings of the 2003 IEEE computer society conference on Computer vision and pattern recognition
Computer graphics optique optical superposition of projected computer graphics
EGVE'01 Proceedings of the 7th Eurographics conference on Virtual Environments & 5th Immersive Projection Technology
Active refocusing of images and videos
ACM SIGGRAPH 2007 papers
Image and depth from a conventional camera with a coded aperture
ACM SIGGRAPH 2007 papers
Occlusion-Resistant Camera Design for Acquiring Active Environments
IEEE Computer Graphics and Applications
IPT/EDT '08 Proceedings of the 2008 workshop on Immersive projection technologies/Emerging display technologiges
The visual computing of projector-camera systems
ACM SIGGRAPH 2008 classes
Defocus Blur Correcting Projector-Camera System
ACIVS '08 Proceedings of the 10th International Conference on Advanced Concepts for Intelligent Vision Systems
International Journal of Computer Vision
Eye-gaze based real-time surveillance video synopsis
Pattern Recognition Letters
Real Aperture Axial Stereo: Solving for Correspondences in Blur
Proceedings of the 31st DAGM Symposium on Pattern Recognition
A framework for modeling 3D scenes using pose-free equations
ACM Transactions on Graphics (TOG)
Principles of Appearance Acquisition and Representation
Foundations and Trends® in Computer Graphics and Vision
Depth from Encoded Sliding Projections
ISVC '09 Proceedings of the 5th International Symposium on Advances in Visual Computing: Part I
Evolving measurement regions for depth from defocus
ACCV'07 Proceedings of the 8th Asian conference on Computer vision - Volume Part II
A coaxial optical scanner for synchronous acquisition of 3D geometry and surface reflectance
ACM SIGGRAPH 2010 papers
ACM Transactions on Graphics (TOG)
Optical computing for fast light transport analysis
ACM SIGGRAPH Asia 2010 papers
Perspective imaging under structured light
ECCV'10 Proceedings of the 11th European conference on Computer vision: Part VI
Optical signal processing with illumination-encoded filters
Computer Vision and Image Understanding
Highlighted depth-of-field photography: Shining light on focus
ACM Transactions on Graphics (TOG)
Exploiting DLP Illumination Dithering for Reconstruction and Photography of High-Speed Scenes
International Journal of Computer Vision
Fast high-resolution appearance editing using superimposed projections
ACM Transactions on Graphics (TOG)
Primal-dual coding to probe light transport
ACM Transactions on Graphics (TOG) - SIGGRAPH 2012 Conference Proceedings
A Combined Theory of Defocused Illumination and Global Light Transport
International Journal of Computer Vision
Reference consistent reconstruction of 3D cloth surface
Computer Vision and Image Understanding
Correcting for optical aberrations using multilayer displays
ACM Transactions on Graphics (TOG) - Proceedings of ACM SIGGRAPH Asia 2012
International Journal of Computer Vision
Colour descriptors for tracking in spatial augmented reality
ACCV'12 Proceedings of the 11th international conference on Computer Vision - Volume 2
Perceptual radiometric compensation for inter-reflection in immersive projection environment
Proceedings of the 19th ACM Symposium on Virtual Reality Software and Technology
Augmenting physical avatars using projector-based illumination
ACM Transactions on Graphics (TOG)
Robust depth sensing with adaptive structured light illumination
Journal of Visual Communication and Image Representation
Decomposing Global Light Transport Using Time of Flight Imaging
International Journal of Computer Vision
Hi-index | 0.01 |
In order to produce bright images, projectors have large apertures and hence narrow depths of field. In this paper, we present methods for robust scene capture and enhanced image display based on projection defocus analysis. We model a projector's defocus using a linear system. This model is used to develop a novel temporal defocus analysis method to recover depth at each camera pixel by estimating the parameters of its projection defocus kemel in frequency domain. Compared to most depth recovery methods, our approach is more accurate near depth discontinuities. Furthermore, by using a coaxial projector-camera system, we ensure that depth is computed at all camera pixels, without any missing parts. We show that the recovered scene geometry can be used for refocus synthesis and for depth-based image composition. Using the same projector defocus model and estimation technique, we also propose a defocus compensation method that filters a projection image in a spatially-varying, depth-dependent manner to minimize its defocus blur after it is projected onto the scene. This method effectively increases the depth of field of a projector without modifying its optics. Finally, we present an algorithm that exploits projector defocus to reduce the strong pixelation artifacts produced by digital projectors, while preserving the quality of the projected image. We have experimentally verified each of our methods using real scenes.