Algorithm A1 Streamed data processing

1. Input: F, Dfloor, Doffset, Dbed

2. Output: Pbed zone, Pleave zone, Pboundary

3. F = Extract Kinect depth streamed data

4. Convert F to grey scale image

5. Determine Dfloor and Dbed by reading Kinect sensor

6. Dsleep = Dbed − Doffset

7. Repeat                          // Setup loop

8.        B = Extract one frame from Kinect depth streaming to background buffer

9. Until no motion in 5 seconds period time

10. Repeat                         // Main loop

11.               Bbpm = UWB-IR sensor reading

12.               Resultant frame F’ = F − B

13.               Pdepth = count the pixels with value

14.               Pbed zone = count the pixels with value above Dsleep in bed region from F’

15.               Pleave zone = count the pixels with value above Dfloor in leave zone from F’

16.               Pboundary = count the pixels with value above Dfloor in boundary from F’

17.               Pdepth = Pabove sleep + Pleave zone + Pboundary zone

18.               Call (Algorithm A2)

19.               P’depth = Pdepth

20.               P’bed zone = Pbed zone

21.               P’leave zone = Pleave zone

22.               P’boundary = Pboundary

23. Until break