compare retinal numsen wasry
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Abstract
Purpose
To compare three commonly used retinal vessel caliber measurement software systems, and propose an algorithm for conversion between measurement systems.
Methods
We used 120 retinal photographs to evaluate the agreement between three commonly used software (Retinal Analysis [RA], Integrative Vessel Analysis [IVAN], and Singapore I Vessel Assessment [SIVA]). Bland-Altman plots were used to evaluate agreement of retinal arteriolar (central retinal artery equivalent, CRAE) and venular (central retinal vein equivalent, CRVE) calibers. Pearson's correlation was used to assess the associations between systemic factors and retinal vessel calibers, and Z-test was used to compare the strength of the correlation coefficients across the three software systems. An algorithm was created to convert measurements, with paired t-test performed to evaluate the differences between SIVA-measured retinal calibers and SIVA-approximates converted from RA- and IVAN-measurements using the algorithm.
Answer:
retinal scanners is to remove a person's eyeball and then use that to gain unauthorized access. ... A better way would be to take a picture of their retina, and then replicate the retina in a suitable model to bypass the biometric security system.
Step-by-step explanation: