Efficient encoding/decoding in the decomposition and recomposition of a high resolution image utilizing its low resolution replica
June 1, 2009. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesMethod of restoring a picture cell by estimation with high density Method of restoring a picture cell by estimation with high density Picture data compressing method Picture transfer method and apparatus therefor Progressive transmission of high resolution two-tone facsimile images Edge decomposition for the transmission of high resolution facsimile images Patent #: 4873577 InventorsAssigneeApplicationNo. 359909 filed on 06/01/1989US Classes:358/426.11, Coded image communication rate358/426.12, Auxiliary information transmitted (e.g., required to perform or identify decoding technique)358/462, Text and image detection and processing375/240.12, Predictive382/238Predictive codingExaminersPrimary: Coles, Sr., Edward L.Attorney, Agent or FirmInternational ClassH04N 001/41AbstractMore efficient encoding/decoding in decomposing and recomposing a high resolution image is obtained by employing a unique prediction arrangement. The prediction arrangement determines whether high resolution pixels to be recomposed from low resolution pixels from a low resolution replica of the high resolution are so-called typically predictable or non-typically predictable by using general prediction rules. The general prediction rules are also employed to determine if any of the typically predictable high resolution pixels would be improperly recomposed. Such high resolution pixels which would be improperly recompased are identified as exceptions. It is noted that so-called supplemental information is required to properly recompose non-typically predictable pixels and typically predictable pixels which are identified as exceptions. To this end, exceptions accompany the low resolution pixel for which the corresponding high resolution pixels would otherwise be improperly recomposed.Other References
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