The BMT-20 is a binoculars-type, simultaneous dual iris capture system intended for enrollment applications, especially very large scale programs, in which subjects are presumed to have no prior experience in providing iris biometrics samples. Developed for and proven in the highly demanding India UID program, the BMT-20 offers the fastest capture speeds, superior usability, minimal failure-to-captures rates and outstanding image quality. Most importantly, the instructions are easy to communicate, resulting in a simple experience for operator and subject alike. The user is simply directed to raise the BMT-20 to his or her eyes as if they were binoculars, touching the forehead bar to the subject just above the eye brows. Once the device is in position, they are asked to center their eyes in the internal mirror while keeping them wide open their eyes. The system does all the work of finding the irises and capturing pristine iris biometrics samples. The BMT-20 is extremely efficient once.
Other Specifications Download Specification | |
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Device Characteristics | Stationery |
Mounting | Mounting |
Iris Diameter | 210 mm |
Spatial Resolution @ 4.0 Lp/mm | 60 % |
Pixel Resolution | 16 Pixels/mm |
No. Of Simultaneous Captured Eyes | 2 no. |
View Finder | External with Capture Distance >750mm, Capture volume (width/height/depth) > 250x500x500 mm and Exposure Time |
Imaging Wavelength | 700-900 nm |
Special Spread - Power In Any 100nm Band | 35 Watt |
Scan Type | Progressive |
Image Margins -Left & Right | 0.50 x iris diameter mm |
Image Margins -Top & Bottom | 0.25 x iris diameter mm |
Pixel Depth | 8 bits/pixel |
Image Evaluation Frame Rate | >5 frames/sec, continuous image capture |
Capture Mode | Auto capture with built-in quality check (incorporates NIST quality considerations) |
Sensor Signal To Noise Ratio | 36 dB |
Connectivity | USB, USB-IF certified or Networked (TCP/IP) |
Operating System Compatibility | Linux /Windows |
Availability Of Device Certification From STQC | Yes |
STQC Certificate No. | UIDAI-BDCS-DELTA-IRIS-030 |
STQC Certificate Date | 05-Oct-2012 |