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Biometric Enrolment Manual
descriptionOverview descriptionFacial image capture descriptionFingerprints Capture descriptionIris Capture
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Facial image capture

Photographs of face are commonly used in various types of identification cards and it is widely accepted as a biometric identifier. Face recognition systems are the least intrusive type of biometric sampling system, requiring no contact or even awareness of the subject.

Digital Camera

A Digital camera is used to capture facial photograph in a digital format. It is connected to a laptop/desktop computer through the USB (Universal Serial Bus) port. The digital camera consists of an auto-focus lens and the mounting base. The lens is able to focus the person’s face automatically.

Steps to Capture Facial Image

  1. Checking the Enrollee’s Position: The photograph should be taken with the resident directly facing the camera. No head rotation or tilt is acceptable.
  2. Adjusting the Camera: It is advised that the Operator should adjust the camera instead of changing Enrollee’s position for the right distance and posture.
  3. Checking the Enrollee’s Expression: The Operator must ensure that the Enrollee has a neutral expression. For example, the Enrollee should not be smiling while being photographed. During the capture the resident’s mouth should be closed and both the eyes must be open.
  4. Checking the shadow/reflection: There should be sufficient light to get a proper image of the face. The Operator must ensure that there is no shadow on the Enrollee’s face and no reflection in his/her eyes. Additional light source should be placed in front of the Enrollee so that there are no shadows under the eye.
  5. Checking the visibility of iris and pupil through Eye Glasses: If the Enrollee is wearing glasses, the photograph must be taken with the glasses on. But the Operator has to ensure that the iris and the pupil are clearly visible and that Enrollee is not wearing dark/coloured sun glasses.
  6. Manually Capturing the photograph: The Operator has to click a button in the Enrolment Client application software to capture the facial image. There is no auto capturing mechanism in case of photograph.