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Author:

林文浩 (林文浩.)

Indexed by:

CQVIP

Abstract:

为节省有限的存储资源及传输带宽,高效的图像编码方案尤为重要.KLT是Karhunen-Loeve Transform的缩写,具有最理想的能量聚集特性,变换核基于源数据统计特性计算得出,可以适应图像多样性.JPEG全称Joint Photographic Experts Group(联合图像专家小组),是第一个国际图像压缩标准,因其高效的编码性能且易于实现而被广泛应用.JPEG图像变换编码采用DCT(Discrete Cosine Transform).DCT是固定核,不适应图像的多样性,在图像编码上有一定局限性.为此,提出了一种更为有效的变换方法——KLT与DCT自适应变换,有效利用了图像的统计特性,提高了编码性能.经验证,该方法比主流的JPEG图像编码标准性能提高3.1%.

Keyword:

JPEG 变换编码 KLT 编码性能 DCT

Author Community:

  • [ 1 ] [林文浩]北京工业大学

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Source :

软件导刊

ISSN: 1672-7800

Year: 2017

Issue: 9

Volume: 16

Page: 192-194,208

Cited Count:

WoS CC Cited Count: 0

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count: 1

Chinese Cited Count:

30 Days PV: 8

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