发明名称 Data extraction from temporal image data
摘要 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.
申请公布号 US7606421(B2) 申请公布日期 2009.10.20
申请号 US20040006547 申请日期 2004.12.08
申请人 CTB/MCGRAW-HILL LLC 发明人 POOR DAVID D. S.
分类号 G06K9/18 主分类号 G06K9/18
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