Sony’s Richard Marks explains the technical aspects of Move

Friday, 18th June 2010 15:34 GMT By Joe Anderson


SCEE’s senior researcher and EyeToy creator, Richard Marks, has explained how the PlayStation Move works,  and to be honest, the technical aspects of it make for an interesting read.

Speaking to CVG regarding the device, the SCEE man said that the glowing globe was especially crucial to the controller.

“[The Globe] really, really crucial,” he said. “It’s crucial for many reasons because it’s like a marker. We know exactly where it is.

“It’s a light so it’s really easy to find it and it can change colour.”

Marks explained that the reason the device changes colour, was so that it could stand out from other objects in the same area.

“So for example if you happen to have a bright pink wall behind you it’ll change colour so it can be tracked better,” he said, further explaining that the PlayStation Eye actually looks at pixels in the background.

“It says ‘Oh, there’s a bunch of magenta pixels – don’t use that colour, use a different one’, and it picks a colour that won’t conflict,” he explained.

“We have full control over the light – there are 360 different hues it can track.”

It sounds very technical and also extremely clever.

Move is to be  released this September worldwide.



  1. dirigiblebill

    Wonder how well it works if you’ve got full-length wall mirrors.

    /doesn’t have full-length wall mirrors

    #1 5 years ago
  2. Razor

    Apparently Digital Foundry interview him tomorrow.

    #2 5 years ago
  3. zubastij

    well that’s the same technology used in matchmove/camera tracking software used to put CGI into film which is flakey at the best of times and low light conditions would add further noise to it making it an even more unreliable tracker. Add to that any occlusion of the marker and this Move thing will have no idea where the point is, it’s basically quite a rubbish solution for realtime object tracking.

    #3 5 years ago
  4. Leathersoup

    …after explaining Move he went on to explain why black cars look better in the shade.

    #4 5 years ago
  5. NiceFellow

    360 hues? Spooky.

    #5 5 years ago
  6. BraveArse


    Can you please explain how low light conditions can be a problem in tracking an object that is it’s own light source? The ambient light conditions will have absolutely bugger all effect on it.

    #6 5 years ago

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