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SIGGRAPH Asia 2018 Posters, 2018
The dynamic range of display is much lower than the one perceived by human eye. This problem has been studied in both aspects of photography and display [Debevec and Malik 1997; Hirsch et al. 2014].
Yuta Itoh 0002 +2 more
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The dynamic range of display is much lower than the one perceived by human eye. This problem has been studied in both aspects of photography and display [Debevec and Malik 1997; Hirsch et al. 2014].
Yuta Itoh 0002 +2 more
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Testing HDR Image Rendering Algorithms
Color and Imaging Conference, 2004Eight high-dynamic-range image rendering algorithms were tested using ten high-dynamic-range pictorial images. A large-scale paired comparison psychophysical experiment was developed containing two sections, comparing the overall rendering performances and grayscale tone mapping performance respectively.
Kuang, Jiangtao +3 more
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2018 26th Telecommunications Forum (TELFOR), 2018
Improving image quality by expanding the dynamic range has been intensively used recently. This results in the presence of much more details in the image, which is very important in most applications. The spread of the dynamic range has its limits and they are defined by the physical limits of the sensor used, i.e. the limitations of its A/D converter.
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Improving image quality by expanding the dynamic range has been intensively used recently. This results in the presence of much more details in the image, which is very important in most applications. The spread of the dynamic range has its limits and they are defined by the physical limits of the sensor used, i.e. the limitations of its A/D converter.
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Fast bilateral filter for HDR imaging
Journal of Visual Communication and Image Representation, 2012Bilateral filtering is a method often used in image processing applications. It is specifically useful for HDR algorithms. A novel approach to a fast and close approximation of bilateral filtering is presented. The method is designed especially with a focus on HDR image conversion into a normal color space processing.
Michal Seeman +3 more
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Image and video compression for HDR content
SPIE Proceedings, 2012High Dynamic Range (HDR) technology can offer high levels of immersion with a dynamic range meeting and exceeding that of the Human Visual System (HVS). A primary drawback with HDR images and video is that memory and bandwidth requirements are significantly higher than for conventional images and video.
Zhang, Yang +3 more
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Glare-limited Appearances in HDR Images
Color and Imaging Conference, 2007Appearance in High Dynamic Range (HDR) images is controlled by intraocular glare and simultaneous contrast. This paper describes unique test targets that simulate real images. They change the HDR range by 500 times without significantly changing the veiling glare on the retina. As well, these targets have nearly constant simultaneous contrast.
A. Rizzi, M. Pezzetti, J. J. McCann
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HDR Imaging From Quantization Noise
2020 IEEE International Conference on Image Processing (ICIP), 2020Quantization is an integral part of image acquisition but also a major performance bottleneck due to the trade-off between dynamic range and resolution. As we discuss in this paper, in contrast, quantization noise can be acquired reliably even beyond the dynamic range by re-purposing recent hardware development.
Ayush Bhandari, Felix Krahmer
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Camera Identification from HDR Images
Proceedings of the ACM Workshop on Information Hiding and Multimedia Security, 2019Performance of camera identification methods based on PRNU is very sensitive to geometric operations applied to images during acquisition and processing. Handling images that have been geometrically transformed, such as rotated, downsampled, and/or cropped requires overcoming pixel desynchronization problem.
Morteza Darvish Morshedi Hosseini +1 more
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Shape Recovery Using HDR Images
Computer Graphics, Imaging and Visualisation (CGIV 2007), 2007In this paper, an effective method for shape recovery using HDRI (high dynamic range images) is proposed. Firstly, an accurate reflectance map for a reference sphere relating its radiance values and corresponding normals is established, then the set of candidate normals of each target point comprising the same material are found by comparing its ...
Zuoyong Zheng, Lizhuang Ma, Zhou Zeng
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An improved HDR image synthesis algorithm
2009 16th IEEE International Conference on Image Processing (ICIP), 2009In high dynamic range (HDR) imaging, multiple photographs with different exposure times are combined into a radiance map, which reflects the radiance in real-life scenes. This involves recovering the response function of the imaging process. The technique proposed by Debevec and Malik is a well-known HDR image synthesis algorithm, but the computational
Saartje De Neve +3 more
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