Fingerprint Authentication Using Optical Characteristics in a Finger
Fingerprint Authentication Using Optical Characteristics in a Finger
复制标题
利用手指光学特性进行指纹认证
DOI：
10.1109/sice.2006.315634
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发表时间：
2006
期刊：
影响因子：
--
通讯作者：
K. Sasakawa
中科院分区：
文献类型：
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作者：
E. Sano;T. Maeda;T. Nakamura;M. Shikai;K. Sakata;M. Matsushita;K. Sasakawa
指纹被广泛应用于各种个人认证应用中。因为指纹可以在认证性能、成本、设备尺寸和易用性之间达到最佳平衡。然而，目前大多数指纹传感器都存在一些问题需要解决。由于传感原理，捕获的指纹图像容易受到手指表面状况和手指按压方式的影响，从而降低认证性能。为了解决这些问题，我们开发了一种具有新颖传感原理的新型指纹传感器。该传感器基于手指内部的光学特性，通过散射透射光形成指纹图像。因此，获得的图像不容易受到手指表面潮湿、起皱等情况的影响，能够实现稳定的认证。本文描述了利用手指光学特性的新型指纹传感器的工作原理，并通过所获得的指纹图像说明了该传感器的有效性
Fingerprint is widely used in various personal authentication applications. It is because that fingerprints can achieve the best balance among authentication performance, cost, size of device, and ease of use. However, most of current fingerprint sensors have some problems to be solved. Those are that captured fingerprint images are easily affected by the condition of the finger surface and the manner of finger pressing due to the sensing principle, and it can degrade authentication performance. To solve these problems, we have developed a new fingerprint sensor that has a novel sensing principle. This sensor forms a fingerprint image based on optical characteristics of a finger's interior by scattered transmission light. Therefore, the images so obtained are not easily affected by the condition of the finger surface such as wet, wrinkled, and so on, and enable stable authentication. In this paper, we describe the operating principle of the new fingerprint sensor using optical characteristics in a finger, and show the effectiveness of the sensor by illustrating obtained fingerprint images