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Chapter 6: Object Recognition

Chapter 6: Object Recognition

pp. 167-197

Authors

, University of Colorado Boulder, , Haverford College, Pennsylvania
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Summary

One crisp autumn night, Betty is yearning for a midnight snack when she remembers that some deliciously spiced tart apple pie is sitting in her refrigerator. She thinks, “That would be wonderful right now with a hot cup of tea!” Although for most people getting the pie out of the refrigerator and making a cup of tea would be simple, for Betty it will be a difficult task.

She walks into the kitchen and identifies the refrigerator by its large size and black color. But now she knows that she must find the pie, and that doing so will not be easy. As she peers inside the refrigerator, she sees a large, round object but deduces from its red color that it must be the leftover pizza pie, not the apple pie. Searching a bit more, she sees a tan, round-shaped object and reaches for it. But alas, as soon as she feels how flexible it is, she realizes that it's the package of tortillas, not the desired pie. Searching some more, she spies another tan, round-shaped object. This one feels stiff, like a pie pan, and is covered with plastic wrap. She pulls it out, takes off the plastic wrap, and sniffs. Ah, it is the pie she has been searching for! She carefully places it on the breakfast table.

Now for the cup of tea. Because Betty knows that the stove is to the left of the refrigerator, her usual strategy is to leave the teakettle sitting on the stove so that she can easily find it. Unfortunately, it's not there. “Ah,” she sighs, “why didn't I just put the teakettle back where it belongs?” Now she begins to feel all the objects on the counter next to the stove. Hmm, that one feels tall and thin and a little greasy – must be the bottle of olive oil. Another one feels cylindrical and as if it's made of paper – must be either the large container of salt or the carton of oatmeal. Soon thereafter, she feels the distinctive curved arm of the teakettle and its wide, round body. Next to it, she feels the box of tea bags. That was fortunate, she thinks, or I would have spent the next five minutes searching for the tea bags.

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