Three dimensional motion compensated video coding
Patent 4999705 Issued on March 12, 1991. Estimated Expiration Date: 
May 3, 2010. 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.
May 3, 2010. 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 ReferencesVideo signal interpolation using motion estimation Combined intraframe and interframe transform coding system Image transmission apparatus Patent #: 4833535 InventorAssigneeApplicationNo. 518677 filed on 05/03/1990US Classes:348/412.1Including temporal predictor (e.g., frame difference)ExaminersPrimary: Kostak, Victor R.Attorney, Agent or FirmInternational ClassH04N 007/13AbstractA video signal encoder uses three dimensional transform coding on blocks of intensity values and then selects the most significant coefficients for further processing by separating the coefficients into several groups have approximately the same energy and thus approximately the same significance. The intensity values can be error values computed by forming the difference between the actual intensity values and values computed using conditional motion compensated interpolation or motion compensated prediction. The encoder can use both two dimensional and three dimensional transformations, and if desired, adaptively switch between those processing techniques. A complementary decoder recovers the intensity values from encoded signals.Other References
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