In this paper, the hand vein recognition is studied deeply.

本文就人体手背静脉识别作了具体的研究工作。

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Absrtact: The human hand dorsal vein recognition technology is a biometric technology.

摘要：人体手背静脉识别技术是生物特征识别技术的一种。

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Vein recognition technology has taken more attention in recent years with its unique advantages.

静脉识别技术以其独特的优势，近年来受到了越来越广泛的关注。

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Facebook has the largest facial-recognition database in the world, a potentially rich vein of data for any government agency.

CNN: After Boston: The pros and cons of surveillance cameras