Related Experiment Video
Updated: Jul 19, 2026

07:56
Digital Planimetry for Assessing Wound Closure Kinetics in a Mouse Model
Published on: January 10, 2025
Wound measurement by curvature maps: a feasibility study
Xiang Liu1, Wangdo Kim, Reiner Schmidt
1School of Mechanical and Aerospace Engineering, Nanyang Technological University, Singapore. liuxiang@pmail.ntu.edu.sg
Physiological Measurement
|October 10, 2006
Summary
This study presents a non-contact wound measurement technique using laser scanning and curvature maps. This method accurately calculates wound depth, area, and volume, showing potential for clinical use.
Area of Science:
- Biomedical Engineering
- Medical Imaging
Background:
- Accurate wound measurement is crucial for effective treatment and monitoring.
- Traditional methods can be invasive, time-consuming, and prone to error.
Purpose of the Study:
- To develop and evaluate a non-contact method for measuring foot ulcer characteristics.
- To assess the feasibility of using laser scanning and curvature analysis for wound assessment.
Main Methods:
- A non-contact laser scanner (FastSCAN) was used to capture 3D coordinates of a foot ulcer over three weeks.
- Curvature maps were generated from the 3D data to detect and process the wound edge using cubic spline smoothing.
- Wound depth, area, and volume were calculated based on the processed data.
Main Results:
- The laser scanning and curvature analysis method successfully captured wound geometry.
- The technique allowed for quantitative calculation of wound depth, area, and volume.
- Qualitative verification against photographic evidence supported the method's accuracy.
Conclusions:
- Non-contact laser scanning combined with curvature analysis is a promising tool for wound measurement.
- This technique offers a potential advancement for clinical wound assessment and monitoring.
Related Concept Videos
Curvature and Its Interpretation
Curvature describes how rapidly a curve changes direction at a particular point. A curve with a small curvature bends gently, while a curve with a large curvature turns sharply. For a space curve, the position of a moving object can be described by a vector-valued function r(t), where t often represents time. The direction of motion is determined by the tangent vector, and the unit tangent vector is obtained by normalizing the derivative of the position vector.The unit tangent vector gives the...
Field Procedure for Staking Out Curves
Staking out curves is an essential process in construction to ensure the accurate alignment of structures along a curved path. This task involves positioning stakes at calculated locations corresponding to the curve's design, effectively translating plans into physical markers in the field. The process begins by determining the geometric parameters of the curve, including the radius, central angle, and tangent distances. These parameters are critical for identifying key points such as the Point...
Bending of Curved Members - Strain Analysis
The mechanics of deformation in curved members, such as beams or arches, under bending moments, involve complex responses. When such a member, symmetric about the y-axis and shaped like a segment of a circle centered at point C, is subjected to equal and opposite forces, its curvature and surface lengths change significantly. This alteration results in the shift of the curvature's center from C to C', indicating a tighter curve.
The important part of bending analysis for such a member is the...
The important part of bending analysis for such a member is the...

