Layered coding of image data using separate data storage tracks on a storage medium
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United States of America Patent
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Oct 14, 2003
Grant Date -
Nov 8, 2001
app pub date -
Jan 8, 2001
filing date -
May 5, 2000
priority date (Note) -
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status (Latency Note)
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Abstract
A source image is encoded into a base layer and an enhancement layer. The base layer represents a standard definition portion of the source image and the enhancement layer represents a high-resolution portion of the source image. The base layer is stored on a first data storage track of a storage medium, such as a DVD, and the enhancement layer is stored on a second data storage track of the storage medium. The first data storage track may be a default camera angle track and then second data storage track may be a second camera angle track. The data is formatted such that a standard definition device will not read the enhancement layer data. A high-resolution decoding system decodes the base layer and the enhancement layer simultaneously to generate a high-resolution image.
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