Exploratory simulation of an Intelligent Iris Verifier Distributed System

This paper discusses some topics related to the latest trends in the field of evolutionary approaches to iris recognition. It presents the results of an exploratory experimental simulation whose goal was to analyze the possibility of establishing an Interchange Protocol for Digital Identities evolved in different geographic locations interconnected through and into an Intelligent Iris Verifier Distributed System (IIVDS) based on multi-enrollment. Finding a logically consistent model for the Interchange Protocol is the key factor in designing the future large-scale iris biometric networks. Therefore, the logical model of such a protocol is also investigated here. All tests are made on Bath Iris Database and prove that outstanding power of discrimination between the intra- and the inter-class comparisons can be achieved by an IIVDS, even when practicing 52.759.182 inter-class and 10.991.943 intra-class comparisons. Still, the test results confirm that inconsistent enrollment can change the logic of recognition from a fuzzified 2-valent consistent logic of biometric certitudes to a fuzzified 3-valent inconsistent possibilistic logic of biometric beliefs justified through experimentally determined probabilities, or to a fuzzified 8-valent logic which is almost consistent as a biometric theory - this quality being counterbalanced by an absolutely reasonable loss in the user comfort level.Comment: 4 pages, 2 figures, latest version: http://fmi.spiruharet.ro/bodorin

Automatic Detection of Common Long-Term Monetary Policies on Global Exchange Market Using Gabor Analytic Phase Binary Encoder

An application of Signal Processing to time series data analysis is presented here. Gabor Analytic Phase Binary Encoder (GAPBE) is used to retrieve the phase information from the long time series of currency exchange rates. As a result, a binary code is generated for each currency. Then the (dis)similarity between the local trends of any two different currencies is expressed through Hamming distance. A common policy for two different currencies is found when the Hamming distance between the binary codes representing the two given currencies is sufficiently small, but exact interpretation of the similarity scores obtained is left to the specialists. And this is all from the economist’s point of view. On the other hand, those interested in iris recognition should read this paper because the same procedure can be used to encode images of human iris. In this case it is worth to give an example of cheating iris recognition by finding two different irides having too similar iris codes. From this perspective, we show here that the exchange market provide us with such an counter-example in which two different exchange rate variation curves are encoded as too similar binary codes.

Searching for 'Fragile Bits' in Iris Codes Generated with Gabor Analytic Iris Texture Binary Encoder *

Abstract This paper presents a new methodology for generating iris binary codes using Circular Fuzzy Iris Segmentation and Gabor Analytic Iris Texture Binary Encoder. Iris images from Bath University Iris Database are encoded as iris codes at three different lengths (192, 512, 768 Bytes) and used to test two hypostases of the concept of fragile bits in both single-enrollment and multi-enrollment iris recognition scenarios