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Scanned Document Compression Using Block-Based Hybrid Video Codec
DOI:10.1109/TIP.2013.2251641.png)
摘要
En 中文
This paper proposes a hybrid pattern matching/transform-based compression method for scanned documents. The idea is to use regular video interframe prediction as a pattern matching algorithm that can be applied to document coding. We show that this interpretation may generate residual data that can be efficiently compressed by a transform-based encoder. The efficiency of this approach is demonstrated using H.264/advanced video coding (AVC) as a high-quality single and multipage document compressor. The proposed method, called advanced document coding (ADC), uses segments of the originally independent scanned pages of a document to create a video sequence, which is then encoded through regular H.264/AVC. The encoding performance is unrivaled. Results show that ADC outperforms AVC-I (H.264/AVC operating in pure intramode) and JPEG2000 by up to 2.7 and 6.2 dB, respectively. Superior subjective quality is also achieved.
Keyword:
Advanced document coding (ADC)
H.264/AVC
pattern matching
scanned document compression
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期刊
IF:
13.7
论文数:
1.0W
被引数:
8.4W

