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Result 1 – 20 of 6,718
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1
October 2006 VAST'06: Proceedings of the 7th International conference on Virtual Reality, Archaeology and Intelligent Cultural Heritage
Publisher: Eurographics Association
Bibliometrics:
Citation Count: 0

The Federal Institute for Materials Research and Testing (BAM) developed a multi-spectral laser scanner to demonstrate the advantages of such systems for the inspection of building surfaces. It is shown that damage of building surfaces, caused by enhanced moisture content and/or vegetation, can be recorded automatically with a high signal-to-noise ...
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2 published by ACM
October 2004 DocEng '04: Proceedings of the 2004 ACM symposium on Document engineering
Publisher: ACM
Bibliometrics:
Citation Count: 6
Downloads (6 Weeks): 1,   Downloads (12 Months): 5,   Downloads (Overall): 540

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Capturing images of documents using handheld digital cameras has a variety of applications in academia, research, knowledge management, retail, and office settings. The ultimate goal of such systems is to achieve image quality comparable to that currently achieved with flatbed scanners even for curved, warped, or curled pages. This can ...
Keywords: camera based document capture, dewarping, stereo vision
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3 published by ACM
November 2011 MM '11: Proceedings of the 19th ACM international conference on Multimedia
Publisher: ACM
Bibliometrics:
Citation Count: 0
Downloads (6 Weeks): 1,   Downloads (12 Months): 4,   Downloads (Overall): 98

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The FCam API is an open-source camera control library, enabling precise control over a camera's imaging pipeline. Intended for researchers and students in the field of computational photography, it allows easy implementation of novel algorithms and applications. Currently implemented on the Nokia N900 smartphone, and a custom-built "Frankencamera", it has ...
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4 published by ACM
November 2012 Communications of the ACM: Volume 55 Issue 11, November 2012
Publisher: ACM
Bibliometrics:
Citation Count: 0
Downloads (6 Weeks): 0,   Downloads (12 Months): 9,   Downloads (Overall): 550

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5 published by ACM
December 2018 ICVIP 2018: Proceedings of the 2018 the 2nd International Conference on Video and Image Processing
Publisher: ACM
Bibliometrics:
Citation Count: 0
Downloads (6 Weeks): 5,   Downloads (12 Months): 32,   Downloads (Overall): 32

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Glioma is the most common and cancerous type of early stage brain tumors that arise from glial cells. Deep learning based solutions are flexible in brain tumor image analysis and computer-assisted diagnosis but it does not gain the desired accuracy. Manual brain tumor segmentation is a challenging task for clinicians ...
Keywords: Anisotropic Convolution, Brain Tumor Segmentation, Convolutional Neural Network, Deeply Supervised, Dilated Convolution
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6 published by ACM
July 2015 ACM Transactions on Graphics (TOG): Volume 34 Issue 4, August 2015
Publisher: ACM
Bibliometrics:
Citation Count: 3
Downloads (6 Weeks): 2,   Downloads (12 Months): 49,   Downloads (Overall): 742

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Conventional camera designs usually shun sample irregularities and lens aberrations. We demonstrate that such irregularities and aberrations, when properly applied, can improve the quality and usability of light field cameras. Examples include spherical aberrations for the mainlens, and misaligned sampling patterns for the microlens and photosensor elements. These observations are ...
Keywords: aberration, camera, computational photography, imaging, irregularity, light field, misalignment, noise, sampling
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7
September 2009 VAST'09: Proceedings of the 10th International conference on Virtual Reality, Archaeology and Cultural Heritage
Publisher: Eurographics Association
Bibliometrics:
Citation Count: 5

Accurate virtual reconstruction of real world objects has long been a desired goal of image-based computer graphics. Usually this involves a lengthy capture process where an object is photographed from different viewpoints and illumination conditions. Using this collection of input images, we can now re-render the object from any viewing ...
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8 published by ACM
July 2011 SIGGRAPH '11: ACM SIGGRAPH 2011 papers
Publisher: ACM
Bibliometrics:
Citation Count: 19
Downloads (6 Weeks): 5,   Downloads (12 Months): 18,   Downloads (Overall): 1,131

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Stereoscopic 3D has gained significant importance in the entertainment industry. However, production of high quality stereoscopic content is still a challenging art that requires mastering the complex interplay of human perception, 3D display properties, and artistic intent. In this paper, we present a computational stereo camera system that closes the ...
Keywords: camera system, programmable, stereoscopy
Also published in:
July 2011  ACM Transactions on Graphics (TOG): Volume 30 Issue 4, July 2011
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9 published by ACM
July 2002 SIGGRAPH '02: ACM SIGGRAPH 2002 conference abstracts and applications
Publisher: ACM
Bibliometrics:
Citation Count: 0
Downloads (6 Weeks): 1,   Downloads (12 Months): 9,   Downloads (Overall): 140

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We describe the implementation of a portable 3D-camera prototype based on a consumer grade digital camera and an inexpensive laser raster generator. Such hand-held device can be used to capture smooth shapes by acquiring one or more images. Its output can be either a 3D wireframe or a textured model.
Keywords: 3D camera, 3D shape acquisition
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10 published by ACM
August 2008 SIGGRAPH '08: ACM SIGGRAPH 2008 posters
Publisher: ACM
Bibliometrics:
Citation Count: 0

Keywords: color correction, geometry correction, multiple-camera system, multiview
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11 published by ACM
May 2010 CF '10: Proceedings of the 7th ACM international conference on Computing frontiers
Publisher: ACM
Bibliometrics:
Citation Count: 0
Downloads (6 Weeks): 1,   Downloads (12 Months): 9,   Downloads (Overall): 267

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This paper proposes a probability formulation that unifies both single-image deblurring and multi-image denoising using variational inference. Based on this formulation, a new algorithm for deblurring a noisy and blurry image pair is presented. Besides, we provide also an approach that combines existing optical flow and image denoising techniques for ...
Keywords: deblurring, denoising, high dynamic range imaging
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12 published by ACM
October 2015 RACS: Proceedings of the 2015 Conference on research in adaptive and convergent systems
Publisher: ACM
Bibliometrics:
Citation Count: 0
Downloads (6 Weeks): 0,   Downloads (12 Months): 16,   Downloads (Overall): 47

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This paper presents video stabilization based on detection and adaptive alpha-trimmed means smoothing filtering of undesirable motion. The proposed algorithm consists of two stages: the detection of undesirable motion and smoothing filtering of detected undesired motion. To incorporate desired properties into the motion smoothing process, the local maximum and the ...
Keywords: accumulative global motion, video stabilization, alpha-trimmed means filter, detection, undesirable motion
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13 published by ACM
December 2012 CVMP '12: Proceedings of the 9th European Conference on Visual Media Production
Publisher: ACM
Bibliometrics:
Citation Count: 1
Downloads (6 Weeks): 1,   Downloads (12 Months): 2,   Downloads (Overall): 111

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Image-pairs captured from a rig of two, carefully arranged cameras are increasingly used to reconstruct partial 3D information. A crucial step in this reconstruction is the matching of points in the two images that are projections of the same 3D point through each camera. Despite receiving much attention, algorithms to ...
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14 published by ACM
November 2012 Communications of the ACM: Volume 55 Issue 11, November 2012
Publisher: ACM
Bibliometrics:
Citation Count: 0
Downloads (6 Weeks): 2,   Downloads (12 Months): 72,   Downloads (Overall): 1,329

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Although there has been much interest in computational photography within the research and photography communities, progress has been hampered by the lack of a portable, programmable camera with sufficient image quality and computing power. To address this problem, we have designed and implemented an open architecture and application programming interface ...
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15 published by ACM
July 2010 ACM Transactions on Graphics (TOG): Volume 29 Issue 4, July 2010
Publisher: ACM
Bibliometrics:
Citation Count: 33
Downloads (6 Weeks): 3,   Downloads (12 Months): 61,   Downloads (Overall): 1,746

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Sampling is a core process for a variety of graphics applications. Among existing sampling methods, blue noise sampling remains popular thanks to its spatial uniformity and absence of aliasing artifacts. However, research so far has been mainly focused on blue noise sampling with a single class of samples. This could ...
Keywords: blue noise, dart throwing, multi-class, poisson hard/soft disk, relaxation, sampling
Also published in:
July 2010  SIGGRAPH '10: ACM SIGGRAPH 2010 papers
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16 published by ACM
November 2013 SA '13: SIGGRAPH Asia 2013 Technical Briefs
Publisher: ACM
Bibliometrics:
Citation Count: 3
Downloads (6 Weeks): 3,   Downloads (12 Months): 17,   Downloads (Overall): 168

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We propose a new model, together with advanced optimization, to separate a thick scattering media layer from a single natural image. It is able to handle challenging underwater scenes and images taken in fog and sandstorm, both of which are with significantly reduced visibility. Our method addresses the critical issue ...
Keywords: haze removal, noise reduction
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17 published by ACM
October 2015 ACM Transactions on Graphics (TOG): Volume 34 Issue 6, November 2015
Publisher: ACM
Bibliometrics:
Citation Count: 8
Downloads (6 Weeks): 5,   Downloads (12 Months): 21,   Downloads (Overall): 357

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We describe a novel technique for the fast production of large point sets with different spectral properties. In contrast to tile-based methods we use so-called AA Patterns: ornamental point sets obtained from quantization errors. These patterns have a discrete and structured number-theoretic nature, can be produced at very low costs, ...
Keywords: blue noise, sampling methods, spectral analysis, tiling
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18 published by ACM
July 2005 ACM Transactions on Graphics (TOG): Volume 24 Issue 3, July 2005
Publisher: ACM
Bibliometrics:
Citation Count: 137
Downloads (6 Weeks): 18,   Downloads (12 Months): 198,   Downloads (Overall): 3,409

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The advent of inexpensive digital image sensors and the ability to create photographs that combine information from a number of sensed images are changing the way we think about photography. In this paper, we describe a unique array of 100 custom video cameras that we have built, and we summarize ...
Keywords: camera arrays, spatiotemporal sampling, synthetic aperture
Also published in:
July 2005  SIGGRAPH '05: ACM SIGGRAPH 2005 Papers
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19 published by ACM
November 2014 ACM Transactions on Graphics (TOG): Volume 33 Issue 6, November 2014
Publisher: ACM
Bibliometrics:
Citation Count: 9
Downloads (6 Weeks): 30,   Downloads (12 Months): 317,   Downloads (Overall): 1,947

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Conventional pipelines for capturing, displaying, and storing images are usually defined as a series of cascaded modules, each responsible for addressing a particular problem. While this divide-and-conquer approach offers many benefits, it also introduces a cumulative error, as each step in the pipeline only considers the output of the previous ...
Keywords: image processing, image reconstruction
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20 published by ACM
November 2012 ACM Transactions on Graphics (TOG): Volume 31 Issue 6, November 2012
Publisher: ACM
Bibliometrics:
Citation Count: 53
Downloads (6 Weeks): 5,   Downloads (12 Months): 77,   Downloads (Overall): 692

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We present a fast, scalable algorithm to generate high-quality blue noise point distributions of arbitrary density functions. At its core is a novel formulation of the recently-introduced concept of capacity-constrained Voronoi tessellation as an optimal transport problem. This insight leads to a continuous formulation able to enforce the capacity constraints ...
Keywords: blue noise, capacity constraints, power diagram
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