An anonymous reader writes "At a Tokyo railway station above a flat-panel display hawking DVDs and books sits a small camera hooked up to some image processing software. When trials begin in January the camera will scan travelers to see how many of them are taking note of the panel, in part of a technology test being run by NTT Communications. It doesn't seek to identify individuals, but it will attempt to figure out how many of the people standing in front of an advertisement are actually looking at it. A second camera, which wasn't fitted at the station but will be when tests begin next month, will take care of estimating how many people are in front of the ad, whether they are looking at it or not."
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