Therefore, the size of the equilateral polygon can be uniquely extracted by its front-projection image and the photogrammetric calibration can be done accordingly.

据此，可以由正多边形物体的正投影像提取原像的尺寸，实现物像关系的标定。

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"As 1080p becomes the standard for high-definition content, Sharp has developed an affordable Full HD 1080p front projector, reinstating Sharp's strong presence in the front projection market, " said Bruce Tripido, associate vice president, marketing, Entertainment Products Division, Sharp.

ENGADGET: Sharp shows off the XV-Z15000 1080p projector

High-def sets fall into three basic categories: direct-view, rear-projection and front-projection.

FORBES: The Big Picture

Front-projection microdisplays will drive overhead projectors and home theater systems, according to Chinnock.

CNN: Watch for microdisplays this year