Where do people look when they walk?

Instructions (to be updated)

• Check batteries (camcorders, headgear power... update this).
• Label tapes and place in camcorders.
• Set up PRPs in scene.
• Mark calibration points on board.
• Have subject stand in front of calibration points. Make sure they are distributed across the scene image well and that the CR is visible when the subject looks at each point. Make sure the PRPs are visible also.
• Start recording eye and scene videos.
• Activate flash.
• Have subject stare at middle calibration point and wiggle headgear (use data during this time period to calculate camera gains). (short, 10 seconds or so - update this)
• Calibrate subject looking at 9 points as usual. (use these data to calculate eye gains)
• Flash again. (backup flash!)
• Have subject walk eyes closed to MVR lab.
• Instruct subject to walk down the path in a normal fashion. Subject is to open eyes and proceed at their discretion at the command "Go".
• Bring subject around, eyes closed, for next mat while assistant is laying down even step mat.
• Instruct subject to walk on marked foot prints. Subject is to open eyes and proceed at their discretion at the command "Go".
• Bring subject around, eyes closed, for next mat while assistant is laying down stagger step mat.
• Flash again.
• Calibrate subject again.
• Flash again. (backup flash!)
• Stop recording eye and scene videos. Lock tapes so they can't be recorded over (unless using one tape for multiple subjects, in which case update this)

Subjects run

• (example entry) Subject 1 - June 1, 2008
  • subject wore contact lenses
  • other notes that may be relevant, etc.
  • PRP locations (location of "top left corner"):
    • Plate 1: x=5cm, y=5cm, z=5cm
    • Plate 2: x= cm, y= cm, z= cm
    • Plate 3: x= cm, y= cm, z= cm
    • Plate 4: x= cm, y= cm, z= cm

Calibrated

• (example) Subjects: 1, 2, 3 (attach data files to this wiki page!)
• (example) Issues: Subject 4 could not be calibrated because...

Digitized

• (example) Saved on Diefendorf "Video Coding" drive in "Walking Experiment" folder:
  • Subjects: 1, 2

Gain values

• (example entry) Subject 1
  • Eye Gain = .52 H, .37 V
  • Cam Gain = .89 H, .85 V

Resources

• Set ALLOWTOPICCHANGE = VplGroup

• Re-examining_travel_gaze.zip: Keynote presentation (also powerpoint export in there)

• Re-Examining_Travel_Gaze_JBP_JTP_9.zip: draft 9 of poster keynote

• Re-Examining_Travel_Gaze_JBP_JTP_14.key.zip: Re-Examining_Travel_Gaze_JBP_JTP_14.key.zip