Gupta Abhishek, Sutton Raul
School of Applied Sciences, University of Wolverhampton, Wolverhampton WV1 1LY, UK.
J Forensic Sci. 2010 Jul;55(4):970-5. doi: 10.1111/j.1556-4029.2010.01422.x. Epub 2010 May 4.
Third level features have been reported to have equal discriminatory power as second level details in establishing personal identification. Pore area, as an extended set third level sub-feature, has been studied by minimizing possible factors that could affect pore size. The reproducibility of pore surface area has been studied using direct microscopic and 500 ppi Livescan images. Direct microscopic pore area measurements indicated that the day on which the pore area was measured had a significant impact on the measured pore area. Pore area measurement was shown to be difficult to estimate in 500 ppi Livescan measurements owing to lack of resolution. It is not possible to reliably use pore area as an identifying feature in fingerprint examination.
据报道，在进行个人身份识别时，三级特征与二级细节具有同等的鉴别能力。作为扩展的三级子特征集，已经通过最小化可能影响孔径的因素来研究孔隙面积。已经使用直接显微镜和500 ppi的实时扫描图像研究了孔隙表面积的可重复性。直接显微镜下的孔隙面积测量表明，测量孔隙面积的日期对测量的孔隙面积有显著影响。由于分辨率不足，在500 ppi的实时扫描测量中，孔隙面积测量难以估计。在指纹检查中，可靠地将孔隙面积用作识别特征是不可能的。
