手指生物特征编码融合识别方法研究

In terms of identification, a finger itself is with multimodal biometric traits including fingerprint, finger-vein and finger-knuckle-print. So, it is very important for developing a theory of giving a unified expression of these multimodal features. However, how to realize the fusion of these features scientifically and reasonably is still a classic problem. We explore the basic theory of finger multi-modal biometric coding fusion in this project. There are two main purposes of this project. One is to make research on the irrelevant competitive feature expression and quantization coding, while the other one is about the research on the fusion coding theory for scale-independent multimodal biometrics. The research of this project can effectively solve the expression problems of finger characteristics in terms of universality, uniqueness, stability and practicability, which has important theoretical value to promote the practical application of finger features in identity authentication.

在身份识别方面，手指包含指纹、指静脉、指节纹等多个生理特征，本身具有多模态特性。因此，手指特征的统一表达在身份鉴别上具有重要价值。但如何科学合理的实现手指特征的有机融合，至今仍是个经典难题。本项目探索手指多模态生物特征编码式融合的基础理论问题，重点解决姿态无关竞争性特征表达与量化编码、尺度无关多模态显性融合编码等两个关键性理论问题，为综合表达手指融合特征奠定理论基础。本项目研究可有效解决手指特征在普遍性、唯一性、稳定性和有用性等方面的表达难题，对推进手指特征在身份鉴别方面的实际应用具有重要理论价值。

在身份识别方面，手指包含指纹、指静脉、指节纹等多个生理特征，本身具有多模态特性。因此，手指特征的统一表达在身份鉴别上具有重要价值。但如何科学合理的实现手指特征的有机融合，至今仍是个经典难题。本项目探索手指多模态生物特征编码式融合的基础理论问题，重点解决姿态无关竞争性特征表达与量化编码、尺度无关多模态显性融合编码等两个关键性理论问题，为综合表达手指融合特征奠定理论基础。本项目研究可有效解决手指特征在普遍性、唯一性、稳定性和有用性等方面的表达难题，对推进手指特征在身份鉴别方面的实际应用具有重要理论价值。