Simple Signed-Distance Function Depth Calculation Applied to Measurement of the fMRI BOLD Hemodynamic Response Function in Human Visual Cortex

2017 ◽  
pp. 216-228 ◽  
Author(s):  
Jung Hwan Kim ◽  
Amanda Taylor ◽  
David Ress
Keyword(s):  
Visual Cortex ◽  
Response Function ◽  
Distance Function ◽  
Hemodynamic Response ◽  
Signed Distance Function ◽  
Hemodynamic Response Function ◽  
Human Visual Cortex ◽  
Signed Distance

Retinotopic variations of the negative blood-oxygen-level dependent hemodynamic response function in human primary visual cortex

2021 ◽  
Vol 125 (4) ◽  
pp. 1045-1057 ◽  
Author(s):  
Natasha de la Rosa ◽  
David Ress ◽  
Amanda J. Taylor ◽  
Jung Hwan Kim
Keyword(s):  
Visual Cortex ◽  
Response Function ◽  
Complex Dynamics ◽  
Hemodynamic Response ◽  
Blood Oxygen Level Dependent ◽  
Blood Oxygen ◽  
Oxygen Level ◽  
Hemodynamic Response Function ◽  
Blood Oxygen Level ◽  
Early Visual Cortex

We investigate dynamics of the negative hemodynamic response function (nHRF), the negative blood-oxygen-level-dependent (BOLD) response (NBR) evoked by a brief stimulus, in human early visual cortex. Here, we show that the nHRFs are not inverted versions of the corresponding pHRFs. The nHRF has complex dynamics that varied significantly with eccentricity. The results also show shift-invariant temporal linearity does not hold for the NBR.

Registration and integration of multiple depth images using signed distance function

2012 ◽  
Author(s):  
Daniel B. Kubacki ◽  
Huy Q. Bui ◽  
S. Derin Babacan ◽  
Minh N. Do
Keyword(s):  
Distance Function ◽  
Signed Distance Function ◽  
Signed Distance ◽  
Depth Images

A Workspace Limit Approach for Teleoperation Based on Signed Distance Function

2021 ◽  
Vol 6 (3) ◽  
pp. 5589-5596
Author(s):  
Gaofeng Li ◽  
Fernando Caponetto ◽  
Edoardo Del Bianco ◽  
Vasiliki Katsageorgiou ◽  
Ioannis Sarakoglou ◽  
...  
Keyword(s):  
Distance Function ◽  
Signed Distance Function ◽  
Signed Distance
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