H．264帧内编码和JPEG2000对静止图像进行编码的性能比较

杨春玲; 孙亚明; 麦智毅; 旷开智; 谢胜利

doi:10.11834/jig.20060368

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专辑

H．264帧内编码和JPEG2000对静止图像进行编码的性能比较
Performance Comparison of H. 264/AVC I-Frame Encoder and JPEG2000 on Still Image Compression
2006年11卷第3期页码：425
纸质出版：2006
DOI： 10.11834/jig.20060368
稿件说明：

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杨春玲, 孙亚明, 麦智毅, 旷开智, 谢胜利. H．264帧内编码和JPEG2000对静止图像进行编码的性能比较[J]. 中国图象图形学报, 2006,11(3):425. DOI： 10.11834/jig.20060368.

Performance Comparison of H. 264/AVC I-Frame Encoder and JPEG2000 on Still Image Compression[J]. Journal of Image and Graphics, 2006, 11(3): 425. DOI： 10.11834/jig.20060368.

摘要

国际最新静止图像压缩标准——JPEG2000代表了离散小波变换（DWT）编码的最高水平，最新的视频压缩编码标准——H．264代表了离散余弦变换（DCT）编码的最高水平。由于H．264的帧内编码采用了一些新方法，如帧内空间预测、不同大小块的DCT变换等，使得H．264帧内编码效率高于其他的DCT变换编码方法，因此可以认为，H．264的帧内编码代表了DCT变换的最高静止图像编码水平。大量的仿真实验比较发现。H．264的帧内编码方法比JPEG2000的编码效率高。据此可以预测，基于帧内空间预测和不同大小块DCT变换的H．264帧内编码方法具有成为下一代静止图像压缩标准的潜能。

Abstract

JPEG2000 stands for the state-of the-art of still image coding based on discrete wavelet transform(DWT)

and H.264/AVC stands for the state-of-the-art of video coding based on variable block sizes discrete cosine transform(DCT).In addition

the H.264/AVC I-frame encoder(H.264-IFE) adopted several advanced techniques

such as directional spatial prediction

variable and hierarchical block transform etc

which improve its coding efficiency significantly.Basically

H.264-IFE is also the state-of-the-art of still image compression algorithm based on block transform.In this paper

a performance evaluation between H.264-IFE and JPEG2000 in terms of PSNR is presented.The experimental results show that H.264-IFE achieves better reconstructed image quality than JPEG2000.These results demonstrated the H.264-IFE's advanced techniques such as directional spatial prediction and variable block-size DCT coding are potential methods for developing next generation still image coding standard.