Abstract: A system and method for sampling multi-spectral images of a dynamically changing scene facilitates independently dynamically adjusting the exposure of a photosensor based on a first group of sequences of images, while disregarding a second group of sequences of images, where each sequence of images is of a distinct color of light. In addition, the current description presents an innovative technique for constructing a multi-spectral image of a scene based on individually contrast-enhanced images of the scene. Applications include video photography and high quality true color stills camera with separate sensor arrays for each color channel. The control of the present embodiment can be used to produce photographs with truer color than conventional techniques.

Abstract: A system and method for sampling multi-spectral images of a dynamically changing scene facilitates independently dynamically adjusting the exposure of a photosensor based on a first group of sequences of images, while disregarding a second group of sequences of images, where each sequence of images is of a distinct color of light. In addition, the current description presents an innovative technique for constructing a multi-spectral image of a scene based on individually contrast-enhanced images of the scene. Applications include video photography and high quality true color stills camera with separate sensor arrays for each color channel. The control of the present embodiment can be used to produce photographs with truer color than conventional techniques.

Abstract: A multi-spectral video camera and corresponding method have an optical arrangement for collecting light, a light splitting prism for splitting the light into a number of spatially separated channels of distinct spectral ranges, and a corresponding number of image sensor arrays. An electronic control and processing system receives sensed pixel data from each of image sensor arrays, analyzes the pixel data separately for each of the image sensor arrays to determine an exposure parameter for each of the sensor arrays, and actuates each of the sensor arrays to capture a subsequent image frame with an effective exposure individually set for each sensor array in accordance with the corresponding exposure parameter. The camera also preferably performs independent contrast enhancement corrections for each spectral channel of the camera.

Abstract: A staring infrared microscope which includes optics for focusing a magnified image of an object onto a 2D array detector of IR sensitive elements, a processor for processing the information received from the 2D array detector, including controlling the integration time of the 2D array detector as a function of the magnification of the object to generate a thermal descriptive image of object, and a display for displaying the thermal descriptive image. Also disclosed is a scanning infrared microscope which includes optics for focusing a magnified image of an object onto a linear array detector of IR sensitive elements including a scanning mirror for scanning the object and a processor for processing the information received from the linear array detector to generate a thermal descriptive image of object. The scanning infrared microscope further includes an output display for displaying the thermal descriptive image.

Abstract: A method and apparatus are disclosed for scanning a receiving medium. The apparatus comprises a motor-driven lead screw which is used to advance a print head relative to a receiving medium supported on a rotatable drum. In order to overcome the problem of banding in an image produced by the apparatus as a result of a sinusoidal pitch error of the lead screw, the pitch error of the lead screw is broken up into a random pitch error. In another embodiment, the pitch error frequency is shifted to a higher frequency which is less sensitive to the human eye.