3D-FORENSICS/FTI

3D-SCANNER AND DATA ANALYSIS FOR FORENSIC EVIDENCE

 

The mobile high-resolution 3D-Forensics/FTI scanner is designed for police investigators to record impression traces on the crime scene. The 3D-Scanner enables the recording, analysis, and comparison of footwear and tyre track impressions. Fast photo and recording of traces can be caught directly on the crime scene.

 

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3D Forensics

The 3D-Forensics workflow

All the workflow management have been implemented to ensure the integrity and the authenticity of the data.

  • HARDWARE DETAILS


    • Device type: 3D scanner based on stereoscopic pattern projection with external calibrated color camera
    • Power supply: Battery operation, charging with 24V DC
    • Power consumption: Max 120 W
    • Operating temperature: -10°C to +40°C
    • Storage temperature: -40°C to +60°C
    • IP protection class: IP22 (IP23 with attached protective cap | IP67 in transport case)
    • Weight: 4.3 kg (with Canon EOS 200D, without battery)
    • Size: 350 x 240 x 260 mm² (without external Canon camera)
    • Min. battery runtime: >120 min (with 1 scan per minute)
    • Max charging time: ca. 120 min
    • Power-on time: 35 sec.
    • Eye safety: Laser class 1 (no danger)

  • TECHNICAL FEATURES


    • Field of view: 325 x 200 mm² (single field)
    • Working distance: 455 mm
    • Measurement depth: 100 mm (405 – 505 mm)
    • Resolution: Lateral: 0.17 mm (point pitch distance) | Vertical: 0.04 mm
    • Accuracy: <50 µm
    • Acquisition time: < 200 ms
    • Processing time: 4-6 sec.
    • Single reflex camera: Canon EOS 200D or Canon 5D Mark IV (the use of other cameras can be requested from the manufacturer)
    • Brightness setting: 5 Exposure levels | 7 LED brightness levels
    • Stray light: <40.000 lux
    • Internal data memory: ca. 3.000 scans
    • Output format: .rgp, .txt, .ply
    • Upload time on USB stick: ca. 10 sec. per scan


The 3D-Forensics Results

The laser scanner captures a 3D scene in a smaller field of view, approximately the size of a shoe sole, with a resolution better than 0.2 mm.
The resolution enables the visualization of tiny identifying marks, such as small scratches which can be used to match impressions to the suspect’s shoes.

 

 

3D ANALYSIS SOFTWARE 


The 3D analysis software is used by the forensic identification experts in the laboratory or in the office. Once the data, captured with the 3D-Forensics/FTI scanner, are uploaded into the analysis software, they are prepared for the subsequent analysis phase. Different shading variants are calculated which are later used to emphasize marks in the 3D-data.

 

software