This approach could minimize problems with dirt and debris, which can baffle traditional optical devices. Holograms are being employed to store fingerprint images, allowing compact storage and fast optical comparisons. As the biometrics market expands, the need to understand the issues is becoming more critical. User acceptance will always be an essential factor for successful implementation of biometric devices. Unfortunately, manufacturers are unable to quantify a device's degree of acceptance.
Different applications demand different levels of performance to achieve high user acceptance.
A high-security defense laboratory may require a low False Accept Ratio, for example, while a day care center might need a low False Reject Ratio. Thus, understanding what these different error rates mean, and how they impact acceptance, is extremely important. Surely, the future is bright for biometrics in access control applications. Only biometric devices provide secure control over who can enter. Today's biometric systems meet the budgetary and security requirements of just about every commercial access control application.