Presentatie Willem En Kevin

Willem Mestdagh - Kevin Cordemans

Papers ,[object Object],[object Object],[object Object],[object Object],[object Object]

PlayAnywhere ,[object Object],[object Object],[object Object]

Introduction Looks great... But... Calibration? Installation? Portability? Cost?

Mainstream Consumer Acceptance ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

PlayAnywhere ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

PlayAnywhere ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Known problems in existing systems

PlayAnywhere Configuration All-in-One IR illuminant Projector (with mirrors) Camera with IR-passing-filter Prototype

Projector ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Camera en IR Illuminant ,[object Object],[object Object],[object Object],[object Object]

How does it work? ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Image Rectification (1)  Remove distortion via standard bilinear interpolation techniques ,[object Object],[object Object],[object Object],Setup Good thing Bad thing Wide lens Maximize usable surface Creates barrel distortion Oblique position of camera Optimizes form factor (compact device) Produces projective distortion

Image Rectification (3) ,[object Object],[object Object],[object Object],[object Object]

Hover and Touch ,[object Object],[object Object],[object Object]

Hover and Touch ,[object Object],Hover Candidate finger positions: highest on each of the distinct shadows which enter the scene from the bottom of the image Touch Analysis of shadow shapes: threshold width of finger shadow at a location slightly below the topmost point

Hover and Touch ,[object Object],[object Object],[object Object],[object Object]

Flow Move ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Optical Flow (1) ,[object Object],[object Object],Image (t-1) Image (t)

Optical Flow (2) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Image(t) (x+dx, y+dy) Image patch P’ Image(t-1) (x, y) Image patch P Resulting vector

Optical Flow (3) For a given patch in the image, select (dx, dy) that minimizes Vector field can be used as an argument in a function to infer meaning from user’s gesture Resulting vector field

PlayAnywhere Visual Codes ,[object Object]

Resultaat ,[object Object],Nu : Thingsight

Beschrijving ,[object Object],[object Object],[object Object],[object Object],[object Object]

Vergelijking ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Presentatie Willem En Kevin

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Presentatie Willem En Kevin