Talk:Henry Classification System

Explanation cleanup
I reverted an edit today containing the explanat

ion below -- Scientizzle 23:46, 7 November 2006 (UTC)

Each Finger on each hand has a number and a value. For instance the left index finger is finger #7 and has the value 2. The number and values are as follows.

Hand |            Left Hand            |             Right Hand Finger| Pinky|Ring|Middle|Index|Thumb  |   Thumb|Index|Middle|Ring|Pinky| Number|   10    9     8     7     6          1     2      3     4    5 Value |    1    1     2     2     4         16    16      8     8    4

The first thing you have to do correlate the finger number with its minutia.

EX)

Finger#| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | Minutia| W | W | L | W | A | W | A | L | A | W |

Where W = Whorl, L = Loop, and A = Arch minutia types.

Next you take the value of the even number whorls. -In this case, Finger# 2, 4, 6, and 10 -Value of Finger# 2 is 16 -Value of Finger# 4 is 8 -Value of Finger# 6 is 4 -Value of Finger# 10 is 1

Then we take the value of the odd number whorls. -In this case, Finger# 1, and 7 -Value of Finger# 1 is 16 -Value of Finger# 7 is 2

Now we add these values up

-Even (16 + 8 + 4 + 1) = 29

-Odd (16 + 2) = 18

Then we add them to the equation (E+1) / (O+1)

So now we get (29 + 1) / (18 + 1)

This gives us our Henry Classification Number of 30/19

Even if the person has no Whorls, their classification is still 1/1

This number can now be used to narrow down the ammout of prints to compare to. Which speeds up the proccess tremendously.

--.dok 08:26, 7 November 2006 (UTC)

If this is all correct, hopefully it can be reworked into a format that explains the concept a little more clearly and maybe some nifty little charts. -- Scientizzle 23:46, 7 November 2006 (UTC)


 * It's correct as far as it goes, but that's just the Primary section of the Henry classification. There's also the Key, Major, Secondary, Subsecondary, and Final.   Infotrope (talk) 20:01, 17 May 2008 (UTC)

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