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3,604
Recovering High Dynamic Range Radiance Maps from Photographs
"... We present a method of recovering high dynamic range radiance maps from photographs taken with conventional imaging equipment. In our method, multiple photographs of the scene are taken with different amounts of exposure. Our algorithm uses these differently exposed photographs to recover the respon ..."
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Cited by 859 (15 self)
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We present a method of recovering high dynamic range radiance maps from photographs taken with conventional imaging equipment. In our method, multiple photographs of the scene are taken with different amounts of exposure. Our algorithm uses these differently exposed photographs to recover
Implementation issues in spectrum sensing for cognitive radios
- in Proc. the 38th. Asilomar Conference on Signals, Systems, and Computers
, 2004
"... Abstract- There are new system implementation challenges involved in the design of cognitive radios, which have both the ability to sense the spectral environment and the flexibility to adapt transmission parameters to maximize system capacity while co-existing with legacy wireless networks. The cri ..."
Abstract
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Cited by 440 (7 self)
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. The critical design problem is the need to process multi-gigahertz wide bandwidth and reliably detect presence of primary users. This places severe requirements on sensitivity, linearity, and dynamic range of the circuitry in the RF front-end. To improve radio sensitivity of the sensing function through
Distributed Quality-of-Service Routing in Ad-Hoc Networks
- IEEE Journal on Selected Areas in Communications
, 1999
"... In an ad-hoc network, all communication is done over wireless media, typically by radio through air, without the help of wired base stations. Since direct communication is allowed only between adjacent nodes, distant nodes communicate over multiple hops. The quality-ofservice (QoS) routing in an ad- ..."
Abstract
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Cited by 299 (4 self)
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In an ad-hoc network, all communication is done over wireless media, typically by radio through air, without the help of wired base stations. Since direct communication is allowed only between adjacent nodes, distant nodes communicate over multiple hops. The quality-ofservice (QoS) routing in an ad
Joint Tx-Rx beamforming design for multicarrier MIMO channels: a unified framework for convex optimization
- IEEE TRANS. SIGNAL PROCESSING
, 2003
"... This paper addresses the joint design of transmit and receive beamforming or linear processing (commonly termed linear precoding at the transmitter and equalization at the receiver) for multicarrier multiple-input multiple-output (MIMO) channels under a variety of design criteria. Instead of consid ..."
Abstract
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Cited by 297 (19 self)
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-form expressions may not exist. From this perspective, we analyze a variety of design criteria, and in particular, we derive optimal beamvectors in the sense of having minimum average bit error rate (BER). Additional constraints on the peak-to-average ratio (PAR) or on the signal dynamic range are easily included
On Being 'Undigital' With Digital Cameras: Extending Dynamic Range By Combining Differently Exposed Pictures
- PROCEEDINGS OF IS&T
, 1995
"... Most everyday scenes have a far greater dynamic range than can be recorded on a photographic film or electronic imaging apparatus (whether it be a digital still camera, video, etc.). However, a set of pictures, that are identical except for their exposure, collectively show us much more dynamic rang ..."
Abstract
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Cited by 237 (15 self)
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Most everyday scenes have a far greater dynamic range than can be recorded on a photographic film or electronic imaging apparatus (whether it be a digital still camera, video, etc.). However, a set of pictures, that are identical except for their exposure, collectively show us much more dynamic
Improving static and dynamic registration in an optical see-through HMD
, 1994
"... In Augmented Reality, see-through HMDs superimpose virtual 3D objects on the real world. This technology has the potential to enhance a user’s perception and interaction with the real world. However, many Augmented Reality applications will not be accepted until we can accurately register virtual ob ..."
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Cited by 188 (11 self)
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objects with their real counterparts. In previous systems, such registration was achieved only from a limited range of viewpoints, when the user kept his head still. This paper offers improved registration in two areas. First, our system demonstrates accurate static registration across a wide variety
Recovering 3D Human Pose from Monocular Images
"... We describe a learning based method for recovering 3D human body pose from single images and monocular image sequences. Our approach requires neither an explicit body model nor prior labelling of body parts in the image. Instead, it recovers pose by direct nonlinear regression against shape descrip ..."
Abstract
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Cited by 261 (0 self)
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from single silhouettes ambiguous. We propose two solutions to this: the first embeds the method in a tracking framework, using dynamics from the previous state estimate to disambiguate the pose; the second uses a mixture of regressors framework to return multiple solutions for each silhouette. We show
Estimation-Theoretic Approach to Dynamic Range Enhancement Using Multiple Exposures
- Journal of Electronic Imaging
, 1999
"... This paper presents an approach for improving the effective dynamic range of cameras by using multiple photographs of the same scene taken with different exposure times. Using this method enables the photographer to accurately capture scenes that contain high dynamic range by using a device with low ..."
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Cited by 64 (0 self)
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This paper presents an approach for improving the effective dynamic range of cameras by using multiple photographs of the same scene taken with different exposure times. Using this method enables the photographer to accurately capture scenes that contain high dynamic range by using a device
A Dynamic Priority Assignment Technique for Streams with (m,k)-Firm Deadlines
- IEEE Transactions on Computers
, 1994
"... The problem of scheduling multiple streams of real-time customers is addressed in this paper. The paper first introduces the notion of (m; k)-firm deadlines to better characterize the timing constraints of real-time streams. More specifically, a stream is said to have (m; k)-firm deadlines if at lea ..."
Abstract
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Cited by 178 (2 self)
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server to reduce the probability of dynamic failure. The basic idea is to assign higher priorities to customers from streams that are closer to a dynamic failure so as to improve their chances of meeting their deadlines. The paper proposes a heuristic for assigning these priorities. The effectiveness
Learning to control a brain-machine interface for reaching and grasping by primates
- Public Library of Science Biology
, 2003
"... Reaching and grasping in primates depend on the coordination of neural activity in large frontoparietal ensembles. Here we demonstrate that primates can learn to reach and grasp virtual objects by controlling a robot arm through a closed-loop brain–machine interface (BMIc) that uses multiple mathema ..."
Abstract
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Cited by 192 (13 self)
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Reaching and grasping in primates depend on the coordination of neural activity in large frontoparietal ensembles. Here we demonstrate that primates can learn to reach and grasp virtual objects by controlling a robot arm through a closed-loop brain–machine interface (BMIc) that uses multiple
Results 1 - 10
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3,604
