scholarly journals Brief presentation enhances various simultaneous contrast effects

2017 ◽  
Vol 17 (4) ◽  
pp. 7 ◽  
Author(s):  
Sae Kaneko ◽  
Stuart Anstis ◽  
Ichiro Kuriki
Keyword(s):  
Simultaneous Contrast ◽  
Contrast Effects

scholarly journals Gloss averaging and simultaneous contrast effects on real bicolored glossy surfaces

2015 ◽  
Vol 15 (12) ◽  
pp. 939
Author(s):  
Sabrina Hansmann-Roth ◽  
Pascal Mamassian ◽  
Sylvia Pont
Keyword(s):  
Simultaneous Contrast ◽  
Contrast Effects

scholarly journals Alcohol reduces simultaneous contrast effects in human vision

2010 ◽  
Vol 2 (7) ◽  
pp. 208-208 ◽  
Author(s):  
K. Johnston ◽  
B. Timney ◽  
D. Leung ◽  
S. Khan
Keyword(s):  
Human Vision ◽  
Simultaneous Contrast ◽  
Contrast Effects

scholarly journals Brief presentation enhances various simultaneous contrast effects

2016 ◽  
Vol 16 (12) ◽  
pp. 244
Author(s):  
Sae Kaneko ◽  
Stuart Anstis ◽  
Ichiro Kuriki
Keyword(s):  
Simultaneous Contrast ◽  
Contrast Effects

The Analogy between Stereo Depth and Brightness

Perception ◽  
1989 ◽  
Vol 18 (5) ◽  
pp. 601-614 ◽  
Author(s):  
Allen Brookes ◽  
Kent A Stevens
Keyword(s):  
Lateral Inhibition ◽  
Spatial Differentiation ◽  
Higher Order ◽  
Apparent Depth ◽  
Simultaneous Contrast ◽  
Original Signal ◽  
Contrast Effects ◽  
Spatial Derivatives

Apparent depth in stereograms exhibits various simultaneous-contrast and induction effects analogous to those reported in the luminance domain. This behavior suggests that stereo depth, like brightness, is reconstructed, ie recovered from higher-order spatial derivatives or differences of the original signal. The extent to which depth is analogous to brightness is examined. There are similarities in terms of contrast effects but dissimilarities in terms of the lateral inhibition effects traditionally attributed to underlying spatial-differentiation operators.

Observation of biological macromolecules using various electron microscopic methods

1978 ◽  
Vol 36 (2) ◽  
pp. 170-171
Author(s):  
Mitsuo Ohtsuki ◽  
Michael Sogard
Keyword(s):  
Electron Microscope ◽  
Phase Contrast ◽  
Image Interpretation ◽  
Density Lipoprotein ◽  
Biological Macromolecules ◽  
Contrast Effects ◽  
Biological Structure ◽  
Electron Microscopic ◽  
Structural Investigations ◽  
Staining Techniques

Structural investigations of biological macromolecules commonly employ CTEM with negative staining techniques. Difficulties in valid image interpretation arise, however, due to problems such as variability in thickness and degree of penetration of the staining agent, noise from the supporting film, and artifacts from defocus phase contrast effects. In order to determine the effects of these variables on biological structure, as seen by the electron microscope, negative stained macromolecules of high density lipoprotein-3 (HDL3) from human serum were analyzed with both CTEM and STEM, and results were then compared with CTEM micrographs of freeze-etched HDL3. In addition, we altered the structure of this molecule by digesting away its phospholipid component with phospholipase A2 and look for consistent changes in structure.

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