method and apparatus for encoding signal method and apparatus fo

Details method and apparatus for encoding signal method and apparatus fo method and apparatus for encoding signal method and apparatus fo

1997-06-24

2000-07-18

Lee, Thomas D.

Image analysis

Image compression or coding

Pyramid, hierarchy, or tree structure

382238, 382299, 358428, G06K 936, G06K 932, H04N 141

Patent

active

060918551

ABSTRACT:
A method and an apparatus for encoding and decoding a signal are provided for predicting high-resolution data based on low-resolution data. The low-resolution data and the high-resolution data both contain a plurality of pixels. The encoding and decoding method includes the first step of encoding the low-resolution data, outputting the encoded low-resolution data, decoding the encoded low-resolution data, and outputting the decoded data, the second step of predicting the high-resolution data based on the decoded low-resolution data and generating the predicted high-resolution data by repetitively outputting the pixels of the low-resolution data, and the third step of encoding the high-resolution data based on the high-resolution data and the predicted high-resolution data and outputting the encoded high-resolution data. The encoding and decoding apparatus includes the first encoding unit for encoding the low-resolution data, outputting the encoded low-resolution data, decoding the encoded low-resolution data, and outputting the decoded low-resolution data, a generating unit for predicting the high-resolution data based on the decoded low-resolution data and generating the predicted high-resolution data by repetitively outputting the pixels of the low-resolution data; and a second encoding step for encoding the high-resolution data based on the high-resolution data and the predicted high-resolution data and outputting the encoded high-resolution data.

REFERENCES:
patent: 5048111 (1991-09-01), Jones et al.

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