3.1.3. Ethics

Ethics was reviewed and approved by the Manchester Metropolitan University ethics committee (SE151621).

#### 3.1.4. Equipment and Experimental Set up

The experiment was set up in the same room for each participant to ensure each recording was done similarly. We used a green screen recording room for each of the recordings; this allowed a consistent background and lighting. The participant sat in the centre of the room, where the lights could be placed at even distances to ensure consistent coverage. The studio has six lights that were evenly spaced around the participant, in a backward C shape; we used a series of back-lights to ensure the background was also lit up. The Kinect was placed one meter away from the participants, at their head height while they sat down. Steps were taken to ensure consistent lighting, but to ensure ground truth colour was available we use a colour checker placed to the left of the participants. The participant was required to remain still during the recording. As recording both RGB and Depth requires a large quantity of data to be stored, we used a SSD fitted laptop. An example of the experimental set up is shown in Figure 1.

**Figure 1.** An example of the data capture set up.
