Dohatec New Media developed a multi-modal Biometric Data Capturing System. Version 2.1 is the current technical status as of 1 April 2026. This update provides high-precision identity verification for Biometric enrollment. Operators use this system to ensure data integrity. Identity management is a critical component of modern Bangla infrastructure projects. Multi-modal biometric integrity is the standard for this technical implementation.
Authentication and Management
Credential-based access protects the system from unauthorized entry. Operators must enter a “User Name” and “Password” to access the application. Login screens provide clear instructions to minimize user error. Staff must ensure the Caps Lock key is off. Correct usernames are mandatory for system entry. Case-sensitivity applies to all passwords. Clicking the “Login” button grants access to the account.
Successful authentication leads to the Operator Dashboard. This interface is the primary command center for all enrollment workflows. Navigation is streamlined to provide access to core modules. Operators select from choices like “Existing NID Card Holder,” “New NID Application,” or “Online NID Application”. The dashboard serves as a central hub for transitioning between demographic and biometric tasks.
Identity Records and Demographic Data
Demographic data capture is the foundation of the enrollment process. Frontend logic ensures that all personal information is recorded accurately. Operators input first names, middle names, and last names into the system. Mandatory fields include civil status, date of birth, and gender. Complete addresses are part of every member profile.
Registrants must provide a clear, recent photo. Document upload instructions specify JPG, JPEG, and PNG formats. File sizes are limited to 5MB for system efficiency. Demographic data recording happens before any biometric capture begins. This module ensures all identity-related information is secure. Member data is confidential and managed securely within the system.
Face Photo Acquisition and Processing
Face photo capture is a fully implemented module with a state-driven workflow. The system manages the capture process through sequential states. Hardware enumeration begins when the operator selects “Open Camera”. Successful connections initialize the live video stream. The system status updates to “Camera Connected” during this phase.
Capture instructions require the face to be centered inside the frame. Good lighting is a requirement for high-quality images. Registrants must remove glasses or hats. Neutral expressions are necessary for biometric standards. Operators freeze the live feed using the “Capture” function. Integrated editing tools allow for refinement of the static image. Manipulation tools include brightness, rotation, and zoom sliders. Operators use these tools to ensure compliance with biometric standards. Reverting changes is possible through the “Undo” function. Discarding a capture happens through the “Retake” action. Final processed images are saved to a predefined secure directory path. Hardware resources are released upon closing the session.
Fingerprint Recognition
Fingerprint capture is successfully implemented with an improved user interface. High-fidelity biometric data collection is the goal of this module. Real-time quality assessment ensures the clarity of ridge patterns. The system supports a full 10-finger capture workflow. Sequential logic guides the operator through a 4-4-2 capture order. Visual indicators highlight the current finger to prevent duplication.
Automated progression moves from the right hand to the left hand. The sequence starts with the four left fingers. It continues with four right fingers. Two thumb fingers complete the biometric profile. Captured images render on-screen instantly for visual verification. Operators verify the ridge clarity and centering of every scan. Images are saved to a designated secure folder. Successful persistence is confirmed when the status displays “Fingerprints Saved Successfully”.
Iris Capture and Ocular Data
Iris capture functionality is integrated into the biometric suite. Specialized imaging logic supports high-precision ocular data collection. Real-time positioning feedback ensures optimal iris pattern recognition. Activation of the module establishes a secure link with the iris scanner. The user interface provides a clear frame for ocular alignment.
Registrants must stand or sit still during the scan. Dual-eye capture happens sequentially. The right eye is initialized and captured first. The left eye follows to complete the profile. Success checkmarks confirm that patterns meet clarity thresholds. Captured images render on-screen for immediate review. Operators verify that no obstructions from eyelids or eyelashes exist. Iris images are committed to a secure folder path. The status “IRIS Images Saved Successfully” confirms data persistence.
Final Verification and Signature Capture
Signature capture is the final authentication step in the enrollment workflow. Users provide a signature to formalize their registration. The user interface is fully designed for this module. Registrants must write their full signature clearly inside a designated box. Hardware for this module is currently unavailable on the development side. Connection and development will proceed once the device is provided.
The Enrollment Details View is a read-only overview of the registrant profile. Operators and supervisors use this module for final verification. All captured data points are visible in one comprehensive interface. This includes biometrics, personal information, and uploaded documents. Reviewing the profile happens before final approval or card issuance.
Multi-modal biometric integrity is the standard for this biometric enrollment system update. Dohatec continues to advance identity management in biometric systems, where high-quality data acquisition ensures the security of every enrollment. Future updates will include full integration of signature capture hardware. As a stand-alone solution, version 2.1 represents a commitment to precision and security.