Abstract:
A whiteboard view camera, which in one embodiment is mounted on a boom, which is fixed above the whiteboard. However, the whiteboard view camera can also be wall or table mounted. The whiteboard view camera differs from an ordinary camera by allowing the lens to tilt with respect to the sensor plane, and shift with respect to the central ray. When the tilt angle α is zero, then the resolution of whiteboard is uniform (e.g., the top and bottom of the whiteboard have the same resolution). In addition, the focus plane is equal to the whiteboard plane, so depth of field issues are not a problem (e.g., a large aperture can be used). Hence, no image noise is introduced. A key contribution of the whiteboard view camera configuration according to the invention is the use of a view camera to capture whiteboard images at uniform resolutions. One embodiment of the whiteboard view camera employs a microphone array of the invention and uses a computer to optimize the image data and audio signals.
Abstract:
A method and apparatus for receiving document images including portions linked to one or more electronic addresses. The linked portion of the document is identified using a predetermined visual attribute, such as bold-face text, or delimiters to mark the portion. The document image is then transmitted using, e.g., existing apparatus for transmitting images, such as a facsimile machine. An electronic address associated with the identified portion of the document is also transmitted using existing techniques, such as by touch-tone telephone. The address may be a voice telephone number, facsimile telephone number. World Wide Web address or any other address with which communication can be established. At the receiving end, both the document image and electronic address are received. Pattern matching is performed on the document image to identify the portion with the predetermined attribute as a linked portion. The received electronic address is then correlated with the linked portion. When the document image is displayed on, e.g., a computer screen, the linked portion is visually identified so that the recipient can access the electronic address by, e.g., clicking on the portion using a mouse. Communication may then be initiated by the recipient with the entity associated with the electronic address.
Abstract:
An optical scanner may be used either with or without a support stand. When operated without the support stand, the scanner may be used to acquire an image of an object in virtually any location and/or orientation, e.g., an image of a picture hanging on a wall. When used in conjunction with the support stand, the support stand may hold the scanner in a non-horizontal orientation so that the combined scanner and support stand occupy a relatively smaller footprint. The scanner may attach to the support stand such that it is able to pivot with respect to the support stand. An object to be scanned (e.g., a document) may then be placed on a support surface of the support stand and the scanner pivoted to a closed position to allow scanning of the object. In this manner, the scanner may also be used in a manner similar to a conventional flatbed scanner.
Abstract:
An optical scanner may be used either with or without a support stand. When operated without the support stand, the scanner may be used to acquire an image of an object in virtually any location and/or orientation, e.g., an image of a picture hanging on a wall. When used in conjunction with the support stand, the scanner may attach to the support stand such that it is able to pivot with respect to the support stand. An object to be scanned (e.g., a document) may then be placed on a support surface of the support stand and the scanner pivoted to a closed position to allow scanning of the object. In this manner, the scanner may also be used in a manner similar to a conventional flatbed scanner.
Abstract:
This invention is directed toward a system and method for scanning a scene or object such as a whiteboard, paper document or similar item. More specifically, the invention is directed toward a system and method for obtaining a high-resolution image of a whiteboard or other object with a low-resolution camera. The system and method of the invention captures either a set of snapshots with overlap or a continuous video sequence, and then stitches them automatically into a single high-resolution image. The stitched image can finally be exported to other image processing systems and methods for further enhancement.
Abstract:
A method and apparatus for receiving document images including portions linked to one or more electronic addresses. The linked portion of the document is identified using a predetermined visual attribute, such as bold-face text, or delimiters to mark the portion. The document image is then transmitted using, e.g., existing apparatus for transmitting images, such as a facsimile machine. An electronic address associated with the identified portion of the document is also transmitted using existing techniques, such as by touch-tone telephone. The address may be a voice telephone number, facsimile telephone number. World Wide Web address or any other address with which communication can be established. At the receiving end, both the document image and electronic address are received. Pattern matching is performed on the document image to identify the portion with the predetermined attribute as a linked portion. The received electronic address is then correlated with the linked portion. When the document image is displayed on, e.g., a computer screen, the linked portion is visually identified so that the recipient can access the electronic address by, e.g., clicking on the portion using a mouse. Communication may then be initiated by the recipient with the entity associated with the electronic address.
Abstract:
An image scanning device is provided that includes an imaging lens, a linear image sensor that outputs a line image signal, a rotatable scanning mirror that deflects light towards the image sensor through the imaging lens, a scanning system for rotating the scanning mirror to scan a two-dimensional image, a focusing system that drives the imaging lens according to a position of the scanning mirror to maintain an in-focus image, and a magnification correction system which compensates for changes of magnification of the line image due to the driving of the imaging lens, such that distortion of the two-dimensional image is reduced. In particular, based on the assumption that an object is a flat surface that is perpendicular to an optical axis of the image scanning device, the magnification correction system compensates for the changes of magnification by calculating a difference between a reference magnification and a current magnification, and replaces a corresponding number of pixels from the line image signal with compensation pixels.
Abstract:
This is a dual film and digital camera with an internal EPROM which holds a full graphics editor and a full communications program. The communications program auto senses which external port is active and uploads itself and the graphics program and any digital images which have been taken by the camera to the remote cite.
Abstract:
A "conversion" device is described that enables a conventional, dedicated copier 4 designed for the singular purpose of making copies to be employed additionally as an electronically-driven printing apparatus, thereby offering a standard issue copier 4 the added functionality of a computer printer or facsimile machine.
Abstract:
A "conversion" device is described that enables a conventional, dedicated copier designed for the singular purpose of making copies to be employed additionally as an electronically-driven printing apparatus, thereby offering a standard issue copier the added functionality of a computer printer or facsimile machine.