International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, Vol XXXV, Part B5. Istanbul 2004 
  
  
  
  
  
  
  
   
  
  
  
  
  
   
  
  
   
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
   
several ways real time or buffered frame store then read. The 
buffer frame/disk store method can be configured for this 
system due to the 15 frame per second or higher data 
acquisition from the two cameras. The points on the left and 
rieht image are automatically windowed and read. The 
software utilizes a multi target extraction tool for 
measurement. Prior to automated measurement the registration 
of the two cameras must be made to determine camera position 
and orientation. One method is to use our target template 
providing automated calibration and camera registration with 
the target extraction tool. (Example of the sequence of the skin 
measurement can be seen in Figures 5 thru 10) 
  
  
Figure 8. 
  
3.0 IMPRINT ANALYSIS 
3.1 Pig and Human Skin Imprint Analysis 
The use of pigs for forensic analysis is not new. Pigs are used 
in various studies and training such as forensic entomology. 
We can use pigskin for a comparison of human skin, there are 
a lot of similarities, you can accurately model the skin 
parameters. This comparison had to be made before any type of 
database could be developed for post mortem imprint or 
indentation marks. 
To begin the comparison pigs are chosen at the same weight of 
a human model. For this test the pig is sedated and objects are 
placed under the pig for a predetermined time. For the 
following examples a hammer and nylon rope were used for 
both the pig and human model for exactly the same amount of 
time. Utilizing the ShapeCapture system and the hardware 
described we were able to measure the skin surfaces in 3D to 
an accuracy of between 160 to 200 microns. The following 
Figures 12, 13, 14 are examples of the comparison test. 
   
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