The difference between objects and scenes… random thoughts [Of Two Minds]

I’m in the middle of my qualification exams and ran across this interesting paper:

Liu, Z Kersten, D Knill, DC Dissociating stimulus information from internal representation–a case study in object recognition. Vision research. 1999; 39(3): 603-12.

However, I’m very confused about them calling the figure on the left an object. This is a collection of objects in 3D space – making it a scene. I’m not sure that this nullifies their model – but this is not object recognition.

liu.gif

There don’t seem to be ideal observer models in scene perception – would they differ?

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Source: Science Blogs: Brain & Behavior