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Lossless compression-based progressive image transmission scheme

IMAGING SCIENCE JOURNAL 2004年第4期52卷 212-224页

作者： Hung, KL Chang, CC Lin, IC Chaoyang Univ Technol Wufong Township Taichung Cty Taiwan Natl Chung Cheng Univ Dept Comp Sci & Informat Engn Chaiyi 621 Taiwan Natl Kaohsiung Univ Appl Sci Dept Management Informat Kaohsiung Taiwan

The lossless compression of images is widely used in medical imaging and remote sensing applications. Also, progressive transmission of images is often desirable because it can reduce the transmission bits of an image. Therefore, combining the features of lossless compression and progressive transmission of images has been intensely researched. The bit-plane method (BPM) is the simplest way to implement a lossless progressive image transmission system. In the present paper, a new block-based scheme for lossless progressive image transmission is proposed. This scheme will reduce the transmission load and improve the image quality of BPM. This method first performs a quantization operation upon the blocks of an image. Next, these blocks are encoded with fewer bits, and the bits are then transmitted phase by phase. The experimental results show that the image quality of this method is better than those in the BPM and improved BPM in related traditional works under the same transmission load. Moreover, during the first phase, the difference in peak signal-to-noise ratio between the present method and BPM is exactly equal LIP to 8.85 dB. This method is therefore effective for lossless progressive image transmission.

关键词： bit plane method lossless coding progressive image transmission run length grey coding

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Lossless compression-based progressive image transmission scheme

引用

The Journal of Photographic Science 2004年第4期52卷 212-224页

The lossless compression of images is widely used in medical imaging and remote sensing applications. Also, progressive transmission of images is often desirable because it can reduce the transmission bits of an image. Therefore, combining the features of lossless compression and progressive transmission of images has been intensely researched. The bitplane method (BPM) is the simplest way to implement a lossless progressive image transmission system. In the present paper, a new block-based scheme for lossless progressive image transmission is proposed. This scheme will reduce the transmission load and improve the image quality of BPM. This method first performs a quantization operation upon the blocks of an image. Next, these blocks are encoded with fewer bits, and the bits are then transmitted phase by phase. The experimental results show that the image quality of this method is better than those in the BPM and improved BPM in related traditional works under the same transmission load. Moreover, during the first phase, the difference in peak signal-to-noise ratio between the present method and BPM is exactly equal up to 8.85 dB. This method is therefore effective for lossless progressive image transmission.

关键词： BIT PLANE METHOD LOSSLESS coding PROGRESSIVE IMAGE TRANSMISSION RUN LENGTH grey coding

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