Abstract: A portable optical sensor for measuring surface strain in an object, such as pre-stressed concrete articles, is provided. The sensor is a modular device comprising at least first and second modules, each of which includes a laser and image sensor. When placed adjacent to the object, the laser of each module illuminates respective, spaced-apart areas of the object's surface and each module's image sensor captures at least a portion of the light reflected from the illuminated area and generates a speckle image of the area. Speckle images of the areas taken at various times and/or under various object stress conditions are compared to arrive at a surface strain measurement for the object.

Abstract: A portable optical sensor for measuring surface strain in an object, such as pre-stressed concrete articles, is provided. The sensor is a modular device comprising at least first and second modules, each of which includes a laser and image sensor. When placed adjacent to the object, the laser of each module illuminates respective, spaced-apart areas of the object's surface and each module's image sensor captures at least a portion of the light reflected from the illuminated area and generates a speckle image of the area. Speckle images of the areas taken at various times and/or under various object stress conditions are compared to arrive at a surface strain measurement for the object.

Abstract: A method and apparatus for processing a plurality of financial documents, comprising, a document processor, wherein, for each financial document, the document processor captures data encoded on the financial document and an image of the financial document during a prime pass, and assigns a prime pass sequence number to each financial document. The apparatus includes a computer database in which the prime pass data and image is stored in association with the prime pass sequence number for the financial document. The document processor is adapted to determine whether the financial document should be rejected because the data and document image needs to be repaired or the data only needs to be repaired. If the data and image needs to be repaired, the document processor, or a desktop scanner/reader, recaptures the data and image, assigns a recapture sequence number to the financial document, and the recaptured data and image is stored in the computer database in association with the recapture sequence number.