203 COMPARISON OF IMAGE PROCESSING STRATEGIES (IPS) FOR DIGITAL VIDEO CORONARY ARTERIOGRAPHY (DVCA)

1986 ◽  
Vol 21 (9) ◽  
pp. S51
Author(s):  
L. M. Boxt ◽  
R. H. Taus ◽  
M. F. Meyerovitz ◽  
D. Fish ◽  
D. P. Harrington ◽  
...  
Author(s):  
Rafael Neujahr Copstein ◽  
Vicenzo Abichequer ◽  
Matheus Cruz Andrade ◽  
Lucas Almeida Machado ◽  
Evandro Rodrigues ◽  
...  

2022 ◽  
Vol 193 ◽  
pp. 106693
Author(s):  
Suvarna Bhoj ◽  
Ayon Tarafdar ◽  
Anuj Chauhan ◽  
Mukesh Singh ◽  
Gyanendra Kumar Gaur

2021 ◽  
Vol 2074 (1) ◽  
pp. 012083
Author(s):  
Xiangli Lin

Abstract With the vigorous development of electronic technology and computer technology, as well as the continuous advancement of research in the fields of neurophysiology, bionics and medicine, the artificial visual prosthesis has brought hope to the blind to restore their vision. Artificial optical prosthesis research has confirmed that prosthetic vision can restore part of the visual function of patients with non-congenital blindness, but the mechanism of early prosthetic image processing still needs to be clarified through neurophysiological research. The purpose of this article is to study neurophysiology based on deep neural networks under simulated prosthetic vision. This article uses neurophysiological experiments and mathematical statistical methods to study the vision of simulated prostheses, and test and improve the image processing strategies used to simulate the visual design of prostheses. In this paper, based on the low-pixel image recognition of the simulating irregular phantom view point array, the deep neural network is used in the image processing strategy of prosthetic vision, and the effect of the image processing method on object image recognition is evaluated by the recognition rate. The experimental results show that the recognition rate of the two low-pixel segmentation and low-pixel background reduction methods proposed by the deep neural network under simulated prosthetic vision is about 70%, which can significantly increase the impact of object recognition, thereby improving the overall recognition ability of visual guidance.


Author(s):  
E. D. Boyes ◽  
M. J. Goringe ◽  
J. J. Gill ◽  
B. J. Muggridge ◽  
J. p. Northover ◽  
...  

Conversion of slow scan signals with a continuously updated image display or video recording at TV rate is one of the functions available using a digital video framestore system in conjunction with a scanning electron microscope (SEM, STEM, AEM etc.) or other types of electron probe equipment e.g. EPMA, AES etc. Acceptable inputs are standard TV format; digital sampling of a range of analogue slow scans or directly coupled digital scans.Routines for noise reduction by spatially resolved time averaging during acquisition are under software control with direct operator involvement in selecting the appropriate conditions via a soft-key redesignation of the VDU numeric pad functions (Fig.l) and within the possibilities of the hardware; making TV rate more useable e.g. to reduce specimen charging and as an essential prerequisite to more sophisticated signal/image processing. Both running average (RVP, 8-bit) and straight integration (16-bit) modes are possible with the Microconsultants Intellect systems in use in our laboratory.


2019 ◽  
Vol 8 (1) ◽  
pp. 23 ◽  
Author(s):  
Ashley D. Deemer ◽  
Bonnielin K. Swenor ◽  
Kyoko Fujiwara ◽  
James T. Deremeik ◽  
Nicole C. Ross ◽  
...  

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