Personal identification and authentication is very crucial in the current scenario. Biometrics plays an important role in this area. Biometric based authentication has proved superior compared to traditional password based authentication. Anyhow biometrics is permanent feature of a person and cannot be reissued when compromised as passwords. To over come this problem, instead of storing the ori...

This study proposes a general diagnostic approach based on a camera based eye-tracking technique and a discrete Kalman filter as an iris tracker. In an event driven scenario, the proposed iris-tracking method is used to locate and track the subject’s eye movement and gesture by comparing it to a set of classified normal and typical gestures. The database is based on available videos as well as ...

Problem statement: This study presented algorithms to detect mouth from color and intensity images. Approach: First, this algorithm detected the face region in the image and extracts intensity valleys from the face region. Next, the algorithm extracted iris candidates from the valleys and computed the costs for each pair of iris candidates. Finally, a pair of iris candidates was selected as iri...

Population characteristics The Rotterdam Study is a population-based prospective study of subjects aged 55 years or older [S1,S2]. Collection of eye (iris) colour data and purification of DNA have been described in detail previously [S3]. In brief, each eye was examined by slit lamp examination by an ophthalmological medical researcher, iris color was graded by standard images showing various d...

OBJECTIVE To collaborate with multiple centers to identify representative epidemiological, clinical, and pathologic characteristics of melanoma of the iris. This international, multicenter, Internet-assisted study in ophthalmic oncology demonstrates the collaboration among eye cancer specialists to stage and describe the clinical and pathologic characteristics of biopsy-proven melanoma of the i...

Immune reconstitution inflammatory syndrome occurs in patients with rapidly recovering immune systems in response to antigens (viable pathogens, nonviable pathogen debris, host antigens or tumor antigens). The acronym IRIS, Greek for spectrum of color, is often used for immune reconstitution inflammatory response syndrome and reflects the wide spectrum of clinical manifestations associated with...

With the rapid technological advancement in vision systems, the advantages of vision based system as the sensing device have influenced the quality of the Robot Soccer game. This study presents an approach to produce a balanced image in terms of brightness under un-uniform lighting environment through the control of lens iris opening. Existing image processing module and CCD camera were used to...

The color of human eyes is often the same as iris eye, which itself consists two parts: anterior layer stroma and posterior or pigment epithelium. Based on experiments, it believed that determined based four factors: granules in epithelium, concentration stromal melanocytes, melanin pigments scattering absorption light from extracellular matrix properties stroma. Becomes. In general, melanocyte...

With an increasing emphasis on security, automated personal identification based on biometrics has been receiving extensive attention. Iris recognition, as an emerging biometric recognition approach, is becoming a very active topic in both research and practical applications. In general, a typical iris recognition system includes iris imaging, iris liveness detection, and recognition. This rese...

– Nearly a sphere with an average diameter of approximately 20mm – Enclosed by various membranes – Cornea and sclera outer cover ∗ Cornea: Transparent convex anterior portion of the outer fibrous coat of the eyeball that covers the iris and the pupil and is continuous with the sclera ∗ Sclera: Tough white fibrous outer envelope of tissue covering all of the eyeball except the cornea – Choroid ∗...