Video encoding and decoding

Details Video encoding and decoding Video encoding and decoding

2008-05-20

2008-05-20

Hung, Yubin (Department: 2624)

Image analysis

Image compression or coding

Transform coding

C382S250000, C348S395100, C348S403100, C358S426140, C375S240200

Reexamination Certificate

active

07376280

ABSTRACT:
A method for encoding video with a two-dimensional (2D) transform separable to two one-dimensional (1D) transforms. The method receives an array of values for a sub-section of an image, performs a first 1D-transform of the array, transposes the resulting array, and performs a second 1D-transform of the array resulting from the transpose. The method, without performing another transpose, generates a data stream using a transposed scan order based on the values of the array resulting from the second transform. A method for decoding video encoded by a 2D transform, which separable to two 1D transforms. The method receives a data stream containing encoded values for an image, parses out the values into an array using a transposed scan order, performs a first 1D-inverse transform on the array, transposes the resulting array, and performs a second 1D-inverse transform of the array resulting from the transpose to produce a decoded output.

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