Date post: | 17-Jul-2015 |
Category: |
Engineering |
Upload: | nara-institute-of-science-and-technology |
View: | 162 times |
Download: | 0 times |
Atsutoshi Ikeda(1), Yasuyuki Otoda(2), Etsuko Ueda(2), Takayuki Nakamura(3)
and Tsukasa Ogasawara(1)
(1) Nara Institute of Science and Technology(2) National Institute of Technology
(3) Wakayama University
2
There is a need to prevent elderly patients from turning over and falling off their beds
When elderly patients try to leave from their beds, there are a lot of chance to get serious physical injuries
5
We propose low-cost and highly reliable patient monitoring device, MIMAMORI device, that monitors patient state in the bed
Device design concepts- Simple and economical hardware
- Component-oriented software
- Open-source
6
(1) Xtion LIVE PRO
(3) Patient status LED
(4) System status LED
(5) Power switch
(6) Start switch
(7) Reset switch
(2) Raspberry Pi
8
Open RTM implementation
2
2 2 2 2
2 2 2 2 3
N=0
N=2
N=1
Capture depth image
Bed area extraction using the projective transformation matrix
Calculation of HLAC future
State classification by SVM SafeDangerous
10
Safe state Dangerous state
Lying in the bed
Sitting on the bed
Moving out from the bed
Leaning against the fence
Training: 2003, Variation: 2672
Training: 2004, Variation: 2837
Training: 2005, Variation: 3476
Training: 2004, Variation: 3492
11
Safe state Dangerous state
Lying in the bed
Sitting on the bed
Moving out from the bed
Leaning against the fence
Training: 2003, Variation: 2672
Training: 2004, Variation: 2837
Training: 2005, Variation: 3476
Training: 2004, Variation: 3492
Actual state
Safe Dangerous
Result
Safe 93.5% 6.5%
Dangerous 4.8% 95.2%
FNR
FPR
13
We are proposing low-cost and highly reliable patient monitoring device
Device design concepts - Simple and economical hardware
- Component-oriented software
- Open-source