# Western Australian Palm Print Classification System and Subdivisions

Western Australian Palmprint Classification (WAPC) is a classification system for palm areas based on the numeric values of primary division and alphanumeric values of secondary division. Like Henry’s classification values, the WAPC values are also arranged in fractions.

Example of Australian Palm Print Classification Value

Here is an example of palmprint classification value by the Australian system proposed by Baird, in 1959.

## Tripartite Division of Palm Print

For calculating the WAPC value, the palm area was first divided into three parts called as “Tripartite Division”.

Area 1: Thenar

The area stretched from half of the wrist area (separated by a lifeline) to the index finger.

Area 2: InterDigital

The area stretched from the ground of the index finger to the ring finger separated by a heart line.

Area 3: Hypothenar

Area left by the thenar and interdigital tripartite division of palm

## How Australian Palm Print Classification System Works?

The Australian palmprint classification is the modified version of Henry’s classification system and uses the same values as in Henry’s classification.

The value of Australian Palmprint Classification System is divided into two major classifications:

1. Primary Classification
2. Secondary Classification
• First Division
• Second Division (secondary subclassification)

### 1. Primary Palmprint Classification

Like the Henry Primary classification system, in this classification, there are also sets of values for pattern types. However, the values are assigned when any type of pattern is seen on the interdigital palm area.

Note: In Henry’s primary classification, values are only allotted when prints are whorl but in the WAPC system, values are allotted when any pattern type is seen.

Finally, the resultant values are then added with 1 to come up final primary palmprint classification value.

### 2. Secondary Palm Print Classification System

The secondary classification is further subdivided into two subdivisions: (a) First Division and (b) Second Division.

#### A. First Division

• The pattern types of the thenar and hypothenar areas are considered.
• The values are expressed in fractions.
• Numerator: Pattern type in Thenar area
• Denominator: Pattern type in Hypothenar area

#### B. Second Division

• It is sometimes called secondary sub-classification.
• The pattern types in the thumb and index finger and the interdigital area are considered.
• The values are expressed in fractions:
• Numerator: Thumb to Index area
• Denominator: Interdigital

## Patterns Type and Respective Symbol/Code for the Australian Palm Print Classification System

References:

• The Fingerprint Sourcebook By United States Department of Justice [Link]
• Touchless Palmprint Recognition Systems By Angelo Genovese, Vincenzo Piuri, Fabio Scotti [Link]
• A Modern Approach for Palmprint Recognition System [Link]
• Advanced Biometric Technologies By Stan Z. Li.
• Palm Print Recognition System: Need, Uses, and Working