Automated pressure ulcer dimension measurements using a depth camera

The novel PrUMS device used in this study provided objective, non-contact wound measurement and was demonstrated to be usable in clinical wound care practice. Images taken with a regular camera can improve the classifier's performance. With a dataset of 70 PUs for single and multiple (four images per PU) measurements, the differences between length and width measurements of the PrUMS and the manual measurement by nurses were not statistically significant (p>0.05). A statistical difference (p=0.04) was found between depth measurements obtained manually and with PrUMS, due to limitations of the depth camera within PrUMS, causing missing depth measurements for small wounds.