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GPU-accelerated integral imaging and full-parallax 3D display using stereo–plenoptic camera system
Hong, Seokmin,Incardona, Nicolò,Inoue, Kotaro,Cho, Myungjin,Saavedra, Genaro,Martinez-Corral, Manuel Elsevier 2019 Optics and lasers in engineering Vol.115 No.-
<P><B>Abstract</B></P> <P>In this paper, we propose a novel approach to produce integral images ready to be displayed onto an integral-imaging monitor. Our main contribution is the use of commercial plenoptic camera, which is arranged in a stereo configuration. Our proposed set-up is able to record the radiance, spatial and angular, information simultaneously in each different stereo position. We illustrate our contribution by composing the point cloud from a pair of captured plenoptic images, and generate an integral image from the properly registered 3D information. We have exploited the graphics processing unit (GPU) acceleration in order to enhance the integral-image computation speed and efficiency. We present our approach with imaging experiments that demonstrate the improved quality of integral image. After the projection of such integral image onto the proposed monitor, 3D scenes are displayed with full-parallax.</P> <P><B>Highlights</B></P> <P> <UL> <LI> The use of a stereo–plenoptic camera system. </LI> <LI> Novel for the composing sub-aperture image array from captured plenoptic image and calculate dense depth map. </LI> <LI> Compose a point cloud and registration between a pair of 3D data. </LI> <LI> Generate 3D image (integral image) from composed voxel in virtual 3D space. </LI> <LI> Display 3D images into integral imaging monitor with great parallax and viewing angle. </LI> </UL> </P>
Jung, Jee-Hyun,Kim, Moonkoo,Yim, Un Hyuk,Ha, Sung Yong,Shim, Won Joon,Chae, Young Sun,Kim, Hana,Incardona, John P.,Linbo, Tiffany L.,Kwon, Jung-Hwan American Chemical Society 2015 Environmental science & technology Vol.49 No.22
<P>Interspecific difference in the developmental toxicity of crude oil to embryonic fish allows the prediction of injury extent to a number of resident fish species in oil spill sites. This study clarifies the comparative developmental effects of Iranian heavy crude oil (IHCO) on the differences of biouptake and toxic sensitivity between embryonic spotted sea bass (<I>Lateolabrax maculates</I>) and olive flounder (<I>Paralichthys olivaceus</I>). From 24 h after exposure to IHCO, several morphological defects were observed in both species of embryonic fish, including pericardial edema, dorsal curvature of the trunk, developmental delay, and reduced finfolds. The severity of defects was greater in flounder compared to that in sea bass. While flounder embryos accumulated higher embryo PAH concentrations than sea bass, the former showed significantly lower levels of CYP1A expression. Although bioconcentration ratios were similar between the two species for some PAHs, phenanthrenes and dibenzothiophenes showed selectively higher bioconcentration ratios in flounder, suggesting that this species has a reduced metabolic capacity for these compounds. While consistent with a conserved cardiotoxic mechanism for petrogenic PAHs across diverse marine and freshwater species, these findings indicate that species-specific differences in toxicokinetics can be an important factor underlying species’ sensitivity to crude oil.</P><P><B>Graphic Abstract</B> <IMG SRC='http://pubs.acs.org/appl/literatum/publisher/achs/journals/content/esthag/2015/esthag.2015.49.issue-22/acs.est.5b03729/production/images/medium/es-2015-03729u_0004.gif'></P><P><A href='http://pubs.acs.org/doi/suppl/10.1021/es5b03729'>ACS Electronic Supporting Info</A></P>