Image decoding apparatus and image decoding method
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United States of America Patent
Stats
-
Jan 2, 2018
Issued Date -
N/A
app pub date -
Sep 26, 2016
filing date -
Mar 28, 2014
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
Circuitry configured to generate an ROI mask by determining whether each of quantized wavelet coefficients constituting quantized image data is associated with an ROI or a non-ROI in an original image on the basis of the scaling amount of the Max-shift method, generate first image data by performing inverse quantization on the quantized image data after being scaled down, generate second image data having a specified decomposition level by performing inverse wavelet transformation on the first image data, generate a restored ROI mask having the same decomposition level as that of the second image data by performing a predetermined process on the ROI mask once or a plurality of times, generate masked image data by applying the restored ROI mask to the second image data, and perform the inverse wavelet transformation on the masked image data until a decomposition level becomes zero.
First Claim
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International Classification(s)
- 2016 Application Filing Year
- H04N Class
- 18761 Applications Filed
- 14708 Patents Issued To-Date
- 78.40 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 0 Citation Count
- H04N Class
- 0 % this patent is cited more than
- 7 Age
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