| 摘要 |
A method and apparatus for scanning an image using a moving lens scanning system is described. The present invention moves film through a pin registered film gate, creating a projected image. A light source exposes images on the film in the film gate. The projected image passes through a lens and exposes a sensor, for example, a CCD camera. The sensor converts the section of the projected image exposed to it into electronic signals, and transfers that data out of the sensor. In one embodiment, the position of the film gate relative to the lens and sensor is adjustable to accommodate different size film formats. A rectangular sensor is used having a width narrower than the projected image width, and a height corresponding to the height of the projected image. To expose an entire film frame image to the sensor, the lens moves along an axis parallel to the width of the film frame so as to move the projected image across the sensor at a predetermined rate sufficient to allow the sensor to capture each component of the projected image. The present invention thereby scans film images using a sensor substantially smaller than the projected image size, and can scan a variety of film formats without moving or changing the size of the sensor.
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