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Full-Body Awareness from Partial Observations
[article]
2020
arXiv
pre-print
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There has been great progress in human 3D mesh recovery and great interest in learning about the world from consumer video data. Unfortunately current methods for 3D human mesh recovery work rather poorly on consumer video data, since on the Internet, unusual camera viewpoints and aggressive truncations are the norm rather than a rarity. We study this problem and make a number of contributions to address it: (i) we propose a simple but highly effective self-training framework that adapts human
arXiv:2008.06046v1
fatcat:egeul5e37fhgxgxjmjtyf6iqyq
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... D mesh recovery systems to consumer videos and demonstrate its application to two recent systems; (ii) we introduce evaluation protocols and keypoint annotations for 13K frames across four consumer video datasets for studying this task, including evaluations on out-of-image keypoints; and (iii) we show that our method substantially improves PCK and human-subject judgments compared to baselines, both on test videos from the dataset it was trained on, as well as on three other datasets without further adaptation. Project website: https://crockwell.github.io/partial_humans
Understanding 3D Object Articulation in Internet Videos
[article]
2022
arXiv
pre-print
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We propose to investigate detecting and characterizing the 3D planar articulation of objects from ordinary videos. While seemingly easy for humans, this problem poses many challenges for computers. We propose to approach this problem by combining a top-down detection system that finds planes that can be articulated along with an optimization approach that solves for a 3D plane that can explain a sequence of observed articulations. We show that this system can be trained on a combination of
arXiv:2203.16531v1
fatcat:anofngksxveljcxeaud5vkrzne
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... s and 3D scan datasets. When tested on a dataset of challenging Internet videos and the Charades dataset, our approach obtains strong performance. Project site: https://jasonqsy.github.io/Articulation3D
PixelSynth: Generating a 3D-Consistent Experience from a Single Image
[article]
2021
arXiv
pre-print
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Recent advancements in differentiable rendering and 3D reasoning have driven exciting results in novel view synthesis from a single image. Despite realistic results, methods are limited to relatively small view change. In order to synthesize immersive scenes, models must also be able to extrapolate. We present an approach that fuses 3D reasoning with autoregressive modeling to outpaint large view changes in a 3D-consistent manner, enabling scene synthesis. We demonstrate considerable
arXiv:2108.05892v1
fatcat:rieqpmrkp5gupibymp2evecif4
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... in single image large-angle view synthesis results compared to a variety of methods and possible variants across simulated and real datasets. In addition, we show increased 3D consistency compared to alternative accumulation methods. Project website: https://crockwell.github.io/pixelsynth/
Viewpoint: In search of a language that connects*
1997
Weather
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Environment Canada , Canada John Stone Downsview, Canada ICPSR, University of Richard Rockwell Michigan, USA IGBP Secretariat, Chris Rapley Stockholm, SwedenHow accurate are weather forecasts? ...
doi:10.1002/j.1477-8696.1997.tb06301.x
fatcat:biqgvphyznbuxhkqr2grkvydte
Customer connection creates a winning product: building success with contextual techniques
1999
Interactions
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Palaeoseismology of the Vilariça Segment of the Manteigas-Bragança Fault in northeastern Portugal
2009
Geological Society Special Publication
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Machette et al. 1992; Crone et al. 1997; Rockwell et al. 2000; Lee et al. 2001; Kent et al. 2005; Wesnousky et al. 2005) and elsewhere in the world (e.g. Owen et al. 1999; Washburn et al. 2001) . ...
In southern California, which has a similar xeric climate and fluvial deposits with comparable parent material, this soil would be interpreted as having started to form in the late Pleistocene (Rockwell ...
doi:10.1144/sp316.15
fatcat:klswwqlsjjfs3hk2zhgl6hpvs4
Body-Size Variation and Fitness Components in Lesser Snow Geese (Chen caerulescens caerulescens)
1988
The AUK: A Quarterly Journal of Ornithology
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Female body size for 8
DAVIES, ROCKWELL, AND COOKE[Auk, Vol. 105
DAviEs, ROCKWELL, AND COOKE[Auk, Vol. 105 ...
Clutch size ranges from 1-7 eggs, averaging approximately 4 (Rockwell et al. 1987 ). ...
doi:10.1093/auk/105.4.639
fatcat:yoo43u3tyfb75ciixpphrpbgme
Has habitat degradation affected foraging behaviour and reproductive success of lesser snow geese (Chen caerulescens caerulescens)?
2005
Ecoscience
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; Rockwell, unpublished) . ...
, 2002; Jefferies, Rockwell & Abraham, 2003) . ...
doi:10.2980/i1195-6860-12-4-439.1
fatcat:w2xamtkd3bf2pnsc5zgl42asba
Predators, alternative prey and climate influence annual breeding success of a long-lived sea duck
2013
Journal of Animal Ecology
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Rockwell, Gormezano & Koons 2011) . ...
Post et al. 2009; Rockwell, Gormezano & Koons 2011) . ...
doi:10.1111/1365-2656.12038
pmid:23362924
fatcat:wd4mtrcynzfl3dclboes52wmgm
OH PLIF visualization of the UVa supersonic combustion experiment: configuration A
2014
Journal of Visualization
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Non-intrusive hydroxyl radical (OH) planar laser-induced fluorescence (PLIF) measurements were obtained in configuration C of the University of Virginia supersonic combustion experiment. The combustion of hydrogen fuel injected through an unswept compression ramp into a supersonic cross-flow was imaged over a range of streamwise positions. Images were corrected for optical distortion, variations in the laser sheet profile, and different camera views. Results indicate an effect of fuel
doi:10.1007/s12650-014-0197-2
fatcat:qoyi7znievfhfjoklcp7ybrauy
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... e ratio on combustion zone shape and local turbulence length scale. The streamwise location of the reaction zone relative to the fuel injector was also found to be sensitive to the fuel equivalence ratio. The flow boundary conditions in the combustor section, which are sensitive to the fuel flow rate, are believed to have caused this effect. A combination of laser absorption and radiative trapping effects are proposed to have caused asymmetry observed in the images. The results complement previously published OH PLIF data obtained for configuration A along with other non-intrusive measurements to form a database for computational fluid dynamics (CFD) model validation.
Porcine skin thermal response to near-IR lasers using a fast infrared camera
2004
Laser Interaction with Tissue and Cells XV
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We have measured the minimum visible lesion (MVL) thresholds for porcine skin and determined the ED 50 for exposures at 1314 nm for 0.35 ms laser pulses. An in-vivo pigmented animal model, Yucatan mini-pig (Sus scrofa domestica), was used in this study. We also have measured the 2-D thermal response using a high-speed (100 frames per second) infrared camera for single-pulse temperature recordings for Gaussian beams of 1 mm diameter. In Vitro samples of the same pig skin were used for
doi:10.1117/12.529356
fatcat:kjmiviry4vh37bz34ffrf35kai
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... s of the optical properties (absorption coefficient, ga, and reduced scattering coefficient p") as a function of wavelength around 1315 nm wavelength. A measured surface temperature distribution for one IR laser pulse of 0.37J at a spot size of 1.3 mm diameter gave approximately a 430 C rise at a hot spot. Computed temperature distributions as a function of time and space are presented and compared with the measured surface temperatures.
Page 345 of Guernsey Breeders' Journal Vol. 124, Issue 4
[page]
1969
Guernsey Breeders' Journal
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Awakes Bon Dari Skyliner Chief, shown by Lawrence Ellis and Sons, Rockwell City, won over an older bull, the two-year-old, Woodruff Farm G. Chris, exhibited by David and Linda Heard, Steamboat Rock. ...
Ellis & Sons, Rockwell City
SENIOR AND RESERVE CHAMPION BULL
Woodruff Farm G. ...
Page 89 of Finishing Today Vol. 51, Issue 3
[page]
1975
Finishing Today
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Chris-
tiansen, technical sales representative
engineering;
(western Michigan).
R.O. Hull & Co. ...
Rockwell Co Paul J rhibodeau, representative for Rockwell industrial furnaces and ovens (Michigan)
Rohm and Haas Co Ralph ¢ Smith, market area manager for Korad film, coatings depart ment
3M Co. ... ...
Page 494 of The Journal of Animal Ecology Vol. 60, Issue 2
[page]
1991
The Journal of Animal Ecology
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Chris Davies measured virtually all the geese. ...
Rockwell & F. Cooke, unpublished). ...
Page 27 of American Genealogist Vol. 30, Issue 1
[page]
1954
American Genealogist
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Rockwell; possibly Noah Rockwell of Danbury, whose 1769 will named wife Mary, son Eliud. ...
Although the Newtown church records designate her Widow Chris- tian Botsford when she married Solomon Ferry, the Smith interlude lasted but seven months and she had returned to her Botsford children in ...
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