Data extraction from temporal image data
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United States of America Patent
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Oct 20, 2009
Grant Date -
Jun 8, 2006
app pub date -
Dec 8, 2004
filing date -
Dec 8, 2004
priority date (Note) -
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status (Latency Note)
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Abstract
In a method and system to extract data from handwritten information when the information is captured as sequences of strokes, vectors, or marks, temporal data is stored within the color or gray-scale encoding of pixel values within a bitmapped image. A bitmapped image is used to create a derived image suitable for data extraction and a method of analyzing the image, including the encoded temporal data, to yield an adjusted image that better reflects the intent of the person who created the handwriting. While the primary application of the invention is in processing handwritten responses to assessment items, the system and method can be advantageously used to extract data from or to improve the presentation of information from an electronic representation of temporal human marks in many applications. Additionally, the system and method can be advantageously used to store and process other types of data within a bitmapped image.
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