Method, device and digital camera for error control and region o

Details Method, device and digital camera for error control and region o Method, device and digital camera for error control and region o

1998-02-11

2000-10-31

Mehta, Bhavesh

Image analysis

Image compression or coding

Pyramid, hierarchy, or tree structure

382232, 382233, G06K 936, G06K 946

Patent

active

061414530

ABSTRACT:
The present invention provides a method (200, 400, 500, 600), device (300, 400, 500, 600, 700) and digital camera (800) for error control of a wavelet-based image codec, wherein wavelet coefficients are encoded using entropy coding. The method includes: A) utilizing, in a decoder, control information and a plurality of resynchronization markers inserted at arbitrary positions in a wavelet-based image bitstream wherein the control information provides decoding information for decoding at least a forward sequence of wavelet coefficients; and B) detecting errors in an image bitstream and limiting propagation of errors in a decoded image utilizing the control information and the plurality of resynchronization markers.

REFERENCES:
patent: 5850482 (1998-12-01), Meany et al.

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