NDLI: Rendering techniques for mixed reality

Please wait, while we are loading the content...

Rendering techniques for mixed reality

Content Provider	Springer Nature Link
Author	Gierlinger, Thomas Danch, Daniel Stork, André
Copyright Year	2009
Abstract	In mixed reality (MR) design review, the aesthetics of a virtual prototype is assessed by integrating a virtual model into a real-world environment and inspecting the interaction between the model and the environment (lighting, shadows and reflections) from different points of view. The visualization of the virtual model has to be as realistically as possible to provide a solid basis for this assessment and interactive rendering speed is mandatory to allow the designer to examine the scene from arbitrary positions. In this article we present a real-time rendering engine specifically tailored to the needs of MR visualization. The renderer utilizes pre-computed radiance transfer to calculate dynamic soft-shadows, high dynamic range images and image-based lighting to capture incident real-world lighting, approximate bidirectional texture functions to render materials with self-shadowing, and frame post-processing filters (bloom filter and an adaptive tone mapping operator). The proposed combination of rendering techniques provides a trade-off between rendering quality and required computing resources which enables high quality rendering in mobile MR scenarios. The resulting image fidelity is superior to radiosity-based techniques because glossy materials and dynamic environment lighting with soft-shadows are supported. Ray tracing-based techniques provide higher quality images than the proposed system, but they require a cluster of computers to achieve interactive frame rates which prevents these techniques from being used in mobile MR (especially outdoor) scenarios. The renderer was developed in the European research project IMPROVE (FP6-IST-2-004785) and is currently extended in the MAXIMUS project (FP7-ICT-1-217039) where hybrid rendering techniques which fuse PRT and ray tracing are developed.
Starting Page	109
Ending Page	120
Page Count	12
File Format	PDF
ISSN	18618200
Journal	Journal of Real-Time Image Processing
Volume Number	5
Issue Number	2
e-ISSN	18618219
Language	English
Publisher	Springer-Verlag
Publisher Date	2009-11-11
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Mixed reality rendering Real-time rendering High dynamic range imaging Image-based lighting Pre-computed radiance transfer Approximate bidirectional texture function Adaptive tone mapping Signal, Image and Speech Processing Pattern Recognition Computer Graphics Multimedia Information Systems Image Processing and Computer Vision
Content Type	Text
Resource Type	Article
Subject	Information Systems

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Adaptive camera-based color mapping for mixed-reality applications

A study of hardware-friendly methods for gradient domain tone mapping of high dynamic range images

An FPGA-based architecture for a local tone-mapping operator

Real-time dynamic tone-mapping operator on GPU

Multi-camera platform for panoramic real-time HDR video construction and rendering

All-Frequency Direct Illumination with Vectorized Visibility

Tone mapping with contrast preservation and lightness correction in high dynamic range imaging

High dynamic range imaging pipeline on the GPU

Image-Based Rendering

Rendering techniques for mixed reality

Similar Documents

Adaptive camera-based color mapping for mixed-reality applications

A study of hardware-friendly methods for gradient domain tone mapping of high dynamic range images

An FPGA-based architecture for a local tone-mapping operator

Real-time dynamic tone-mapping operator on GPU

Multi-camera platform for panoramic real-time HDR video construction and rendering

All-Frequency Direct Illumination with Vectorized Visibility

Tone mapping with contrast preservation and lightness correction in high dynamic range imaging

High dynamic range imaging pipeline on the GPU

Image-Based Rendering

Rendering techniques for mixed reality