The technical advancement of CRT back projection and LCD frontprojection are mainly introduced.
重点介绍了用量最多的CRT背投影和LCD前投影电视的技术进展。
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Whereas Walt Disney projected images from the front, the makers of Mask-bot use on-board rear projection to ensure a seamless face-to-face interaction.
For recognition, the front or trailing edge of projection of binary image on horizontal axis basically shows linear shape, so least square theory is applied in tilt correction.