The term 'smart sensor' has been used by various researchers in a number of different contexts,
r... more The term 'smart sensor' has been used by various researchers in a number of different contexts, ranging from sensors incorporating a few active devices to pro- vide a more reliable interface to the sensor to enhance the quality of the sensed signal, to integrated sensors incorporating a sophisticated electronic circuit block including both digital and analog circuitry that helps transform the sensor from a passive component into a 'smart' periphery of a control/instrumentation system. However, over the past few years, a rather broad consensus has been achieved whereby a smart sensor is defined as one that is capable of (i) providing a digital output; (ii) communicating through a bidirectional digital bus; (iii) being accessed through a specific address; and (iv)executing commands and logical functions. In the context of this paper, the smart sensor is defined as one that should possess these features. We are now evolving into the fourth- generation sensors, where more analog and digital electronics are on-chip, making the sensor addressable action between the sensor and the host microcomputer. Some large-area visible imaging devices and pressure sensors represent fourth-generation components.
ABSTRACT Iris based authentication system is essentially a pattern recognition technique that mak... more ABSTRACT Iris based authentication system is essentially a pattern recognition technique that makes use of iris patterns, which are statistically unique, for the purpose of personal identification. In this study, a novel method for recognition of iris patterns is considered by using a combination of support vector machine and Hamming distance. The zigzag collarette area of the iris is selected for iris feature extraction because it captures the most important areas of iris complex pattern and higher recognition rate is achieved. The proposed approach also used parabola detection and trimmed median filter for the purpose of eyelid and eyelash detection & removal, respectively. The proposed method is computationally effective as well as reliable with a recognition rate of 99.91% and 99.88% on CASIA and Chek image database respectively.
DOAJ Directory of Open Access Journals, SPARC Europe Award 2009 English. Free, full text, quality... more DOAJ Directory of Open Access Journals, SPARC Europe Award 2009 English. Free, full text, quality controlled scientific and scholarly journals, covering all subjects and many languages. ...
The devices based on state variables other than charge
discussed in the workshops included ... more The devices based on state variables other than charge discussed in the workshops included MEMS/NEMS switches and sensors and spintronic memories, spin logic and new phenomena, such as spin Hall effect and topological insulators. The MEMS/NEMS were not benchmarked mainly because of the application-oriented nature and diversity of the devices. Applications for Beyond CMOS were identified as low noise relays or power switches and in adding functionalities to future data processing systems through monolithic or heterogeneous integration. The main focus for spintronics was on various types of memories some of which are already commercially available. Spin logics is still to emerge with a promise of very low power consumption. The material issues are crucial and a new paradigm for architecture is needed, proving the importance of strengthening the technology-design community.
The term 'smart sensor' has been used by various researchers in a number of different contexts,
r... more The term 'smart sensor' has been used by various researchers in a number of different contexts, ranging from sensors incorporating a few active devices to pro- vide a more reliable interface to the sensor to enhance the quality of the sensed signal, to integrated sensors incorporating a sophisticated electronic circuit block including both digital and analog circuitry that helps transform the sensor from a passive component into a 'smart' periphery of a control/instrumentation system. However, over the past few years, a rather broad consensus has been achieved whereby a smart sensor is defined as one that is capable of (i) providing a digital output; (ii) communicating through a bidirectional digital bus; (iii) being accessed through a specific address; and (iv)executing commands and logical functions. In the context of this paper, the smart sensor is defined as one that should possess these features. We are now evolving into the fourth- generation sensors, where more analog and digital electronics are on-chip, making the sensor addressable action between the sensor and the host microcomputer. Some large-area visible imaging devices and pressure sensors represent fourth-generation components.
ABSTRACT Iris based authentication system is essentially a pattern recognition technique that mak... more ABSTRACT Iris based authentication system is essentially a pattern recognition technique that makes use of iris patterns, which are statistically unique, for the purpose of personal identification. In this study, a novel method for recognition of iris patterns is considered by using a combination of support vector machine and Hamming distance. The zigzag collarette area of the iris is selected for iris feature extraction because it captures the most important areas of iris complex pattern and higher recognition rate is achieved. The proposed approach also used parabola detection and trimmed median filter for the purpose of eyelid and eyelash detection & removal, respectively. The proposed method is computationally effective as well as reliable with a recognition rate of 99.91% and 99.88% on CASIA and Chek image database respectively.
DOAJ Directory of Open Access Journals, SPARC Europe Award 2009 English. Free, full text, quality... more DOAJ Directory of Open Access Journals, SPARC Europe Award 2009 English. Free, full text, quality controlled scientific and scholarly journals, covering all subjects and many languages. ...
The devices based on state variables other than charge
discussed in the workshops included ... more The devices based on state variables other than charge discussed in the workshops included MEMS/NEMS switches and sensors and spintronic memories, spin logic and new phenomena, such as spin Hall effect and topological insulators. The MEMS/NEMS were not benchmarked mainly because of the application-oriented nature and diversity of the devices. Applications for Beyond CMOS were identified as low noise relays or power switches and in adding functionalities to future data processing systems through monolithic or heterogeneous integration. The main focus for spintronics was on various types of memories some of which are already commercially available. Spin logics is still to emerge with a promise of very low power consumption. The material issues are crucial and a new paradigm for architecture is needed, proving the importance of strengthening the technology-design community.
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ranging from sensors incorporating a few active devices to pro- vide a more reliable interface to
the sensor to enhance the quality of the sensed signal, to integrated sensors incorporating a
sophisticated electronic circuit block including both digital and analog circuitry that helps
transform the sensor from a passive component into a 'smart' periphery of a
control/instrumentation system. However, over the past few years, a rather broad consensus has
been achieved whereby a smart sensor is defined as one that is capable of (i) providing a digital
output; (ii) communicating through a bidirectional digital bus; (iii) being accessed through a
specific address; and (iv)executing commands and logical functions. In the context of this paper,
the smart sensor is defined as one that should possess these features.
We are now evolving into the fourth- generation sensors, where more analog
and digital electronics are on-chip, making the sensor addressable action between the sensor and
the host microcomputer. Some large-area visible imaging devices and pressure sensors represent
fourth-generation components.
discussed in the workshops included MEMS/NEMS
switches and sensors and spintronic memories, spin logic
and new phenomena, such as spin Hall effect and
topological insulators. The MEMS/NEMS were not
benchmarked mainly because of the application-oriented
nature and diversity of the devices. Applications for
Beyond CMOS were identified as low noise relays or
power switches and in adding functionalities to future
data processing systems through monolithic or
heterogeneous integration. The main focus for
spintronics was on various types of memories some of
which are already commercially available. Spin logics is
still to emerge with a promise of very low power
consumption. The material issues are crucial and a new
paradigm for architecture is needed, proving the
importance of strengthening the technology-design community.
ranging from sensors incorporating a few active devices to pro- vide a more reliable interface to
the sensor to enhance the quality of the sensed signal, to integrated sensors incorporating a
sophisticated electronic circuit block including both digital and analog circuitry that helps
transform the sensor from a passive component into a 'smart' periphery of a
control/instrumentation system. However, over the past few years, a rather broad consensus has
been achieved whereby a smart sensor is defined as one that is capable of (i) providing a digital
output; (ii) communicating through a bidirectional digital bus; (iii) being accessed through a
specific address; and (iv)executing commands and logical functions. In the context of this paper,
the smart sensor is defined as one that should possess these features.
We are now evolving into the fourth- generation sensors, where more analog
and digital electronics are on-chip, making the sensor addressable action between the sensor and
the host microcomputer. Some large-area visible imaging devices and pressure sensors represent
fourth-generation components.
discussed in the workshops included MEMS/NEMS
switches and sensors and spintronic memories, spin logic
and new phenomena, such as spin Hall effect and
topological insulators. The MEMS/NEMS were not
benchmarked mainly because of the application-oriented
nature and diversity of the devices. Applications for
Beyond CMOS were identified as low noise relays or
power switches and in adding functionalities to future
data processing systems through monolithic or
heterogeneous integration. The main focus for
spintronics was on various types of memories some of
which are already commercially available. Spin logics is
still to emerge with a promise of very low power
consumption. The material issues are crucial and a new
paradigm for architecture is needed, proving the
importance of strengthening the technology-design community.