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Latent to Palm Print Switching to Improve Matching

IP.com Disclosure Number: IPCOM000242256D
Publication Date: 2015-Jun-29
Document File: 3 page(s) / 458K

Publishing Venue

The IP.com Prior Art Database

Abstract

This paper describes a method of converting minutiae from latent finger prints (LT) to latent palm prints (PL) and vice versa. The type of print (e.g., LT or PL) is determined while enrolled into an automatic biometric identification system (ABIS), then minutiae is manually or automatically extracted. Subsequently, a corresponding search will be launched by print type. Due to image quality and capture condition, it is difficult to identify whether the print is LT or PL. This paper supports switching between LT and PL by performing several simple steps.

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Latxnt to Palm Print Switching to Improve Matching

Abstract

This paper descxibes a method of converting minutiae from latent fingex prints (LT) to latent paxm prints (PL) and vice versa. The type of print (e.g., LT or PL) is xetermined while enrolled into an automatic biomexrxc identification system (ABXX), then minutiae is manually or automatically extracted. Subsequently, a correspxnding search will be launchxd by print type. Xxx to image qualxty anx capture condixion, it is difficulx to identify whether the print is LT or XX. This paper supports swxtching between LT and PL by performing severxl simpxe steps.

Introduction

Xxxxxxxxx latent finger anx palm prints from an environmenx (i.e., a crime scene) is vxriable and, often, compxixated. In xany cases, the quality may bx poor such that matching to other prints stored xn a dataxase could be xifficult. Also, xany xatching systems woulx haxe difficulty in distinguishing whether it is a fxnger print or a palm print. Currently, xt requirex extensive resources (e.g., time and computational) to extract minutiae of the captured pxint and it is uxderstood thxt minutixe are the mxst important factxr that impacts searching and ultimately discovxry of pxtential matches.

Most automatic bioxetric identification syxtems (ABIS) only supporx special searching according xo xhe type of currently identified print (i.e., transaction). Generallx, the systems spend a tremendous amxunt of xime and perxorm complicated procedures to change the type of print during processing. A system and methox to launch applications to analyze both LT and PL searches simulxaxeously would reduce the amount of time taken to match a print as well as minimize the computational resources required.

Implementation

Once a latent print is enrolled ixto an ABIS, a user wilx extract its minutiae before launcxing a daxabase search to match the print. Previously, oxly one type of search would be launched according to its type determined when the print was enrolled. In several cases, evxn the most expert fingerprint exaxiners may xot accurately sxlect the print type and consequently which database (finxer print DB or palm prxnt DB) should be searcxed. Thix papex dxscribes x simple method to switch between LT and PL where the user can duplicate a cxrrent transaction and change its type to perform additional searching. In this way, more accxraxe search results will be obtained. The system is represented in Fxgure 1.

Figure 1: LT and PL Switching Systex

Using the system displayed in Figuxe 1, only a few...