公开(公告)号：US5815202A

公开(公告)日：1998-09-29

申请号：US664266

申请日：1996-06-11

Applicant: David Difrancesco

Inventor： David Difrancesco

IPC: H04N1/04 ,  H04N1/195 ,  H04N3/40 ,  H04N5/253 ,  H04N7/18

CPC classification number: H04N1/0405 ,  H04N1/0402 ,  H04N1/0455 ,  H04N1/195 ,  H04N3/40 ,  H04N5/253 ,  H04N2201/0408 ,  H04N2201/0426

Abstract: 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.

Abstract translation: 描述了使用移动透镜扫描系统扫描图像的方法和装置。 本发明通过一个针对注册的胶片门移动胶片，产生投影图像。 光源在胶片门上的胶片上曝光图像。 投影图像通过透镜并暴露传感器，例如CCD相机。 传感器将暴露于其中的投影图像的部分转换为电子信号，并将该数据传输出传感器。 在一个实施例中，胶片门相对于透镜和传感器的位置是可调节的，以适应不同大小的胶片格式。 使用矩形传感器，其宽度比投影图像宽度窄，并且使用与投影图像的高度相对应的高度。 为了将整个胶片帧图像曝光到传感器，透镜沿着平行于胶片框架的宽度的轴移动，以便以预定的速率移动投影图像，该预定速率足以允许传感器捕获 投影图像。 因此，本发明使用基本上小于投影图像尺寸的传感器来扫描胶片图像，并且可以在不移动或改变传感器尺寸的情况下扫描各种胶片格式。