Related Experiment Video
Updated: Jan 30, 2026

Imaging and 3D Reconstruction of Cerebrovascular Structures in Embryonic Zebrafish
Published on: April 22, 2014
A Novel Mobile Structured Light System in Food 3D Reconstruction and Volume Estimation
Sepehr Makhsous1, Hashem M Mohammad2, Jeannette M Schenk3
1Sensors, Energy, and Automation Laboratory (SEAL), Department of Electrical and Computer Engineering University of Washington, Seattle, WA 98109, USA. sosper30@uw.edu.
Abstract:
. Over the past ten years, diabetes has rapidly become more prevalent in all age demographics and especially in children. Improved dietary assessment techniques are necessary for epidemiological studies that investigate the relationship between diet and disease. Current nutritional research is hindered by the low accuracy of traditional dietary intake estimation methods used for portion size assessment. This paper presents the development and validation of a novel instrumentation system for measuring accurate dietary intake for diabetic patients. This instrument uses a mobile Structured Light System (SLS), which measures the food volume and portion size of a patient's diet in daily living conditions. The SLS allows for the accurate determination of the volume and portion size of a scanned food item. Once the volume of a food item is calculated, the nutritional content of the item can be estimated using existing nutritional databases. The system design includes a volume estimation algorithm and a hardware add-on that consists of a laser module and a diffraction lens. The experimental results demonstrate an improvement of around 40% in the accuracy of the volume or portion size measurement when compared to manual calculation. The limitations and shortcomings of the system are discussed in this manuscript.
Related Concept Videos
Light Acquisition
What are Estimates?
The estimate for the mean of a sample is denoted by ͞x, whereas the mean of the population is designated as μ. Further, parameters such...
One-Compartment Open Model for IV Bolus Administration: Estimation of Elimination Rate Constant, Half-Life and Volume of Distribution
The Wave Nature of Light
Seed Structure and Early Development of the Sporophyte
Estimation of k and VD of Aminoglycosides

