Image processing of real-world three-dimensional objects sensed with digital holography

2007 ◽  
Author(s):  
Conor P. McElhinney ◽  
Bryan M. Hennelly ◽  
Thomas J. Naughton
Keyword(s):  
Image Processing ◽  
Real World ◽  
Digital Holography ◽  
Three Dimensional ◽  
Three Dimensional Objects

scholarly journals A Projection System for Real World Three-Dimensional Objects Using Spatial Light Modulators

2008 ◽  
Vol 4 (2) ◽  
pp. 254-261 ◽  
Author(s):  
Unnikrishnan Gopinathan ◽  
David S. Monaghan ◽  
Bryan M. Hennelly ◽  
Conor P. McElhinney ◽  
Damien P. Kelly ◽  
...  
Keyword(s):  
Real World ◽  
Three Dimensional ◽  
Spatial Light Modulators ◽  
Projection System ◽  
Three Dimensional Objects ◽  
Light Modulators

scholarly journals 2D or Not 2D? An FMRI Study of How Dogs Visually Process Objects

2020 ◽  
Author(s):  
Ashley Prichard ◽  
Raveena Chhibber ◽  
Kate Athanassiades ◽  
Veronica Chiu ◽  
Mark Spivak ◽  
...  
Keyword(s):  
Real World ◽  
Three Dimensional ◽  
Reward Processing ◽  
Training Experience ◽  
Three Dimensional Objects ◽  
Fmri Study ◽  
Dimensional Version ◽  
Canine Cognition ◽  
2D And 3D ◽  
The Brain

ABSTRACTGiven humans’ habitual use of screens, they rarely consider potential differences when viewing two dimensional (2D) stimuli and real-world versions of dimensional stimuli. Dogs also have access to many forms of screens and touch pads, with owners even subscribing to dog-directed content. Humans understand that 2D stimuli are representations of real-world objects, but do dogs? In canine cognition studies, 2D stimuli are almost always used to study what is normally 3D, like faces, and may assume that both 2D and 3D stimuli are represented in the brain the same way. Here, we used awake fMRI of 15 dogs to examine the neural mechanisms underlying dogs’ perception of two- and three-dimensional objects after the dogs were trained on either a two- or three-dimensional version of the objects. Activation within reward processing regions and parietal cortex of the dog brain to 2D and 3D versions of objects was determined by their training experience, as dogs trained on one dimensionality showed greater activation to the dimension on which they were trained. These results show that dogs do not automatically generalize between two- and three-dimensional stimuli and caution against implicit assumptions when using pictures or videos with dogs.

Image processing of conventional TEM images: a catalyst case study

1995 ◽  
Vol 53 ◽  
pp. 118-119
Author(s):  
J. M. Briceño-Valero ◽  
L. Martinez ◽  
K. Moore ◽  
V. Grassian
Keyword(s):  
Image Processing ◽  
Supported Catalysts ◽  
Three Dimensional ◽  
Particle Characterization ◽  
Flatbed Scanner ◽  
Three Dimensional Objects ◽  
Transmission Electron ◽  
Platinum Particles ◽  
Inherent Problem

Particle characterization with the Transmission Electron Microscope (TEM) has the inherent problem of interpreting three dimensional objects from two-dimensional projections. Relevant questions when measuring small particles include how projection of the image will distort measurement of crystallite size, and how will the image distort the morphology of the particle Another difficulty is the effect of overlapping images from two or more particles. In the case of supported catalysts, an additional problem may be termed "differential contrast" which interferes with distinguishing between the supported metal crystallites and the support itself. While these situations may appear to be quite different, the is a shared concern of how the general appearance of the particle image related to its real shape. Image processing technology can be used to extract and display hidden information from conventional TEM micrographs. In this study, platinum particles supported on silica were examines.TEM images were taken at 80,000X magnification with a Hitachi H-600 at 100 kV, digitally acquired using an Imapro QCS 3200 flatbed scanner at 3200 dots per inch.

scholarly journals Holographic image processing of three-dimensional objects

2005 ◽  
Author(s):  
Jonathan Maycock ◽  
Conor P. Mc Elhinney ◽  
Alison E. Shortt ◽  
Thomas J. Naughton ◽  
John B. McDonald ◽  
...  
Keyword(s):  
Image Processing ◽  
Three Dimensional ◽  
Holographic Image ◽  
Three Dimensional Objects
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