A high dynamic range rendering pipeline for interactive applications

Petit, Josselin; Brémond, Roland

doi:10.1007/s00371-010-0430-5

Cited by 11 publications

(3 citation statements)

References 23 publications

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“…The term dynamic range is defined as the ratio of the largest value of a signal to the lowest measurable value. HDR rendering usually consists of a chain of subsequently applied techniques [240]. Regarding the dynamic range of a common daylight scenario, a contrast of typically 10.000 : 1 can be observed [347]; however, the frame buffers of the rendering pipeline as well as common display devices are based on a color depth of 8 bit per channel, which corresponds to a contrast of only 256 : 1 per color.…”

Section: High Dynamic Range Rendering (Hdr)mentioning

confidence: 99%

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Bridging the Gap between Rendering and Simulation Frameworks

Hempe

2016

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the material is concerned, specifically the rights of translation, reprinting, reuse of illustrations, recitation, broadcasting, reproduction on microfilms or in any other physical way, and transmission or information storage and retrieval, electronic adaptation, computer software, or by similar or dissimilar methodology now known or hereafter developed. The use of general descriptive names, registered names, trademarks, service marks, etc. in this publication does not imply, even in the absence of a specific statement, that such names are exempt from the relevant protective laws and regulations and therefore free for general use. The publisher, the authors and the editors are safe to assume that the advice and information in this book are believed to be true and accurate at the date of publication. Neither the publisher nor the authors or the editors give a warranty, express or implied, with respect to the material contained herein or for any errors or omissions that may have been made.Printed on acid-free paper This Springer Vieweg imprint is published by Springer Nature The registered company is Springer Fachmedien Wiesbaden GmbH Dissertation RWTH Aachen, 2015 D 82 ForewordAfter nearly half a century of research, the Holy Grail of the field of computer graphics remains a comprehensive computational model and the corresponding software structure to provide realistically looking -and behaving -virtual world. However, Nico Hempe's work, documented in this thesis achieves nothing less than a functional and proven software structure to cope with the request for realism in the ever increasing complexity of today's robotic and mechatronic applications. Over the decades, modeling for computer simulation and visualization has progressed from an early reliance on purely geometric models to extremely powerful simulation models which also incorporate the underlying physical principles. Nico's is to date one of the most important PhD dissertations which manage to bridge the gap between advanced simulation and comprehensive rendering techniques by combining the best of both worlds to impressive virtual reality applications. His virtual worlds, which do not only look good but serve as the basis for virtual testbeds, are key components in new development approaches in the context of eRobotics and "Industry 4.0". Starting in 2010, Nico's work helped to establish the research field of eRobotics in order to cope with the inherent complexity, facilitate the development and significantly cut down the cost of advanced robotics and mechatronics applications. The objective is to effectively use electronic media -hence the "e" at the beginning of the term -to achieve the best possible advancements in the development of the robots' respective fields of use. Current domains of eRobotics covered by Nico's work comprise industrial robotics, work machines, construction site automation, space robotics and even the fields of environmental and city modelling. This thesis reveals the technical details behind a spectacular accomplishment in com...

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Section: High Dynamic Range Rendering (Hdr)mentioning

confidence: 99%

“…The glare simulation is typically separated into three steps [240] [107]. First, bright areas of the rendered HDR image are extracted and saved to a glow texture by using a threshold value.…”

Section: Glare Simulationmentioning

confidence: 99%

Bridging the Gap between Rendering and Simulation Frameworks

Hempe

2016

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“…e study in [13] relied on more and more high-resolution multispectral digital art images (mainly painting and painting) and complex computer vision methods. is paper proposes a new research method [14], which takes the physical illumination model as the core, that is, dynamically calculating HDR illumination in the virtual environment. Our method allows the reuse of existing virtual environments as input and computes HDR images in photometric units.…”

Section: Introductionmentioning

confidence: 99%

Design of the Poster Image System Based on Human Vision

Sun

2021

Scientific Programming

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At present, the human visual perception system is the most effective, accurate, and fast image processing system in the world. This is because human eyes have some special visual features, but the features closely related to image enhancement include color constancy and brightness constancy. This paper presents a new image enhancement framework and computational model which can better simulate human visual features. It is based on the analysis of color constancy and luminance constancy and Retinex theory. And, this is a new image enhancement method in the compressed domain based on Retinex theory. In Retinex theory, DCT coefficients consist of incident components (DC coefficients) and reflection components (AC coefficients). By adjusting the dynamic range of DC coefficients, carefully adjusting AC coefficients, and using the threshold method for block suppression, the compressed domain image can be enhanced. On the basis of Retinex theory, the incident light and reflected light components are considered synthetically, the dynamic range (DC coefficient) of the incident light component and the details of the reflected light component (AC coefficient) are adjusted, and then the incident light component is reexamined. Moreover, it achieves a better image enhancement effect and avoids the blocking effect.

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