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CORRECTION OF LIGHT ATTENUATION IN LARGE
"... A simple procedure, based on elementary shower theory, has been devised to compensate for attenuation losses over the surface of large sandwich-type shower counters. It uses tapered lead sheets in place of the usual flat plates and is capable of compensating for attenuation of as much as a factor of ..."
Abstract
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A simple procedure, based on elementary shower theory, has been devised to compensate for attenuation losses over the surface of large sandwich-type shower counters. It uses tapered lead sheets in place of the usual flat plates and is capable of compensating for attenuation of as much as a factor
Analysis of variations in ocean color,
- Limnol. Oceanogr.,
, 1977
"... Abstract: The dependence of the reflectance at the surface on the vertical structure of optical parameters is derived from first principles. It is shown that the depth dependence is a function of the derivative of the round trip attenuation of the downwelling and backscattered light. Previously the ..."
Abstract
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Cited by 180 (7 self)
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Abstract: The dependence of the reflectance at the surface on the vertical structure of optical parameters is derived from first principles. It is shown that the depth dependence is a function of the derivative of the round trip attenuation of the downwelling and backscattered light. Previously
Dappled photography: Mask enhanced cameras for heterodyned light fields and coded aperture refocusing
- in Proc. ACM SIGGRAPH
, 2007
"... Figure 1: Our heterodyne light field camera provides 4D light field and full-resolution focused image simultaneously. (First Column) Raw sensor image. (Second Column) Scene parts which are in-focus can be recovered at full resolution. (Third Column) Inset shows fine-scale light field encoding (top) ..."
Abstract
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Cited by 139 (32 self)
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) and the corresponding part of the recovered full resolution image (bottom). (Last Column) Far focused and near focused images obtained from the light field. We describe a theoretical framework for reversibly modulating 4D light fields using an attenuating mask in the optical path of a lens based camera. Based
Scalar speed limits and cosmology: Acceleration from D- cceleration
- Phys. Rev. D70 (2004) 103505, hep-th/0310221
"... Causality on the gravity side of the AdS/CFT correspondence restricts motion on the moduli space of the N = 4 super Yang Mills theory by imposing a speed limit on how fast the scalar field may roll. This effect can be traced to higher derivative operators arising from integrating out light degrees o ..."
Abstract
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Cited by 166 (11 self)
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Causality on the gravity side of the AdS/CFT correspondence restricts motion on the moduli space of the N = 4 super Yang Mills theory by imposing a speed limit on how fast the scalar field may roll. This effect can be traced to higher derivative operators arising from integrating out light degrees
HYPER: A New Approach for the Recognition and Positioning of Two-Dimensional Objects
- IEEE Transactions on Pattern Analysis and Machine Intelligence
, 1996
"... Abstract-A new method has been designed to identify and locate objects lying on a flat surface. The merit of the approach is to provide strong robustness to partial occlusions (due for instance to uneven lighting conditions, shadows, highlights, touching and overlapping objects) thanks to a local an ..."
Abstract
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Cited by 152 (5 self)
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Abstract-A new method has been designed to identify and locate objects lying on a flat surface. The merit of the approach is to provide strong robustness to partial occlusions (due for instance to uneven lighting conditions, shadows, highlights, touching and overlapping objects) thanks to a local
Flash Photography Enhancement via Intrinsic Relighting
- ACM Trans. Graphics
, 2004
"... Figure 1: (a) Top: Photograph taken in a dark environment, the image is noisy and/or blurry. Bottom: Flash photography provides a sharp but flat image with distracting shadows at the silhouette of objects. (b) Inset showing the noise of the available-light image. (c) Our technique merges the two ima ..."
Abstract
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Cited by 144 (6 self)
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Figure 1: (a) Top: Photograph taken in a dark environment, the image is noisy and/or blurry. Bottom: Flash photography provides a sharp but flat image with distracting shadows at the silhouette of objects. (b) Inset showing the noise of the available-light image. (c) Our technique merges the two
A survey of shadow algorithms
- IEEE Computer Graphics and Applications
, 1990
"... Essential to realistic and visually appealing images, shadows are difficult ta compute in most display environments. This survey characterizes the various types of shadows. It also describes most existing shadow algorithms and discusses their complexities, advantages, and shommings. We examine herd ..."
Abstract
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Cited by 147 (3 self)
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the algorithm best wpuited to their W. We also hope that our analysis will h&p identify the a m that need more research and point bo possible sotutkms. A shadow-a region of relative darkness within an not necessarily attenuate the light it occludes. In fact, illuminated region-occurs when an object totally
Attenuation measurements Light Attenuation Sediments
"... of monochromatic light in marine sediments ..."
Lensless imaging with a controllable aperture
- In CVPR
, 2006
"... In this paper we propose a novel, highly flexible camera. The camera consists of an image detector and a special aperture, but no lens. The aperture is a set of parallel light attenuating layers whose transmittances are controllable in space and time. By applying different transmittance patterns to ..."
Abstract
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Cited by 37 (2 self)
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In this paper we propose a novel, highly flexible camera. The camera consists of an image detector and a special aperture, but no lens. The aperture is a set of parallel light attenuating layers whose transmittances are controllable in space and time. By applying different transmittance patterns
Variable Attenuator Has Low IMD and Flat Response
, 2006
"... To achieve a continuously well-known elec-variable attenuation range tronic circuits, and low distortion, this widely used for signal design uses a combination level control in a variety of fixed and variable of applications. One par-attenuator modules ticular application is a front-end device for m ..."
Abstract
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To achieve a continuously well-known elec-variable attenuation range tronic circuits, and low distortion, this widely used for signal design uses a combination level control in a variety of fixed and variable of applications. One par-attenuator modules ticular application is a front-end device
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