Title | ||
---|---|---|
Camera on Vessel: A Camera-Based System to Measure Change in Water Volume in a Drinking Glass |
Abstract | ||
---|---|---|
A major problem related to chronic health is patients' compliance with new lifestyle changes, medical prescriptions, recommendations, or restrictions. Heart-failure and hemodialysis patients are usually placed on fluid restrictions due to their hemodynamic status. A holistic approach to managing fluid imbalance will incorporate the monitoring of salt-water intake, body-fluid retention, and fluid excretion in order to provide effective intervention at an early stage. Such an approach creates a need to develop a smart device that can monitor the drinking activities of the patient. This paper employs an empirical approach to infer the real water level in a conically shapped glass and the volume difference due to changes in water level. The method uses a low-resolution miniaturized camera to obtain images using an Arduino microcontroller. The images are processed in MATLAB. Conventional segmentation techniques (such as a Sobel filter to obtain a binary image) are applied to extract the level gradient, and an ellipsoidal fitting helps to estimate the size of the cup. The fitting (using least-squares criterion) between derived measurements in pixel and the real measurements shows a low covariance between the estimated measurement and the mean. The correlation between the estimated results to ground truth produced a variation of 3% from the mean. |
Year | DOI | Venue |
---|---|---|
2015 | 10.3390/s150923847 | SENSORS |
Keywords | Field | DocType |
fluid level measurement,fluid monitoring,fluid imbalance,camera vision,chronic patients | Computer vision,Smart device,MATLAB,Segmentation,Binary image,Sobel operator,Ground truth,Pixel,Artificial intelligence,Engineering,Covariance | Journal |
Volume | Issue | ISSN |
15 | 9.0 | 1424-8220 |
Citations | PageRank | References |
0 | 0.34 | 3 |
Authors | ||
3 |
Name | Order | Citations | PageRank |
---|---|---|---|
Idowu Ayoola | 1 | 16 | 3.76 |
Wei Chen | 2 | 96 | 39.08 |
l m g feijs | 3 | 21 | 7.21 |