Abstract: The embodiments of the invention relate to method for image-based retrieval of an image or text, comprising capturing a digital image; matching the digital image against digitally-stored documents; and retrieving one or more of the digitally-stored documents that match the digital image. Other embodiments relate to a device for image-based retrieval and rendering, comprising an image capturing device for capturing digital image; a device for processing the digital image to match it against digitally-stored documents; a device for retrieving a digitally-stored document that matches the digital image; and a device for rendering the selected retrieved image.

Abstract: In some embodiments, disclosed is reading device that comprises a camera, at least one processor, and a user interface. The camera scans at least a portion of a document having text to generate a raster file. The processor processes the raster file to identify text blocks. The user interface allows a user to hierarchically navigate the text blocks when they are read to the user.

Abstract: In some embodiments, a reading device is provided with a shortcut read mode in which a user can instruct the reading device of the type of document (e.g., invoice, package label, newspaper, etc.) that is to be read so that the device can more efficiently find and read back to the user desired (target) information from the document.