Abstract: A digital imaging system and method for searching for expressions that appear on a microform medium, the system having a computer including a processor and an input device, and a digital microform imaging apparatus having an area sensor generating a digital microform image of the microform medium. The computer is configured to receive a search expression from the input device, create an expression template representing a shape of the search expression, and search the digital microform image for instances of the expression template.

Abstract: Systems and methods to generate a multi-mode image containing different modes such as color, grayscale, and black and white to minimize digital file size while retaining the desired modes for selected portions of the image.

Abstract: An apparatus for searching for expressions that appear on a microform medium, the apparatus comprising a microform imager including a sensor for generating digital microform images of one segment of the microform medium at a time, a display screen; and a processor programmed to, while the microform imager is generating a digital microform image: (i) use the digital microform image generated by the microform imager to drive the display screen, (ii) search the digital microform image presented via the display screen for instances of a search expression and (iii) visually distinguish the located search expressions in the digital microform image presented via the display screen.

Abstract: A digital microform imaging apparatus which includes an approximately monochromatic illumination source transmitting an incident light through a diffuse window along a first optical axis of the apparatus. A microform media support is configured to support a microform media after the diffuse window and along the first optical axis. An approximately 45 degree fold mirror reflects the incident light transmitted through the microform media approximately 90 degrees along a second optical axis. An imaging subsystem includes a lens connected to a first carriage which is linearly adjustable approximately parallel with the second optical axis, and an area sensor connected to a second carriage which is linearly adjustable approximately parallel with the second optical axis.