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该文针对PSTN远程图像监控系统应用,在对h.263,JPEG,MPEG中量化器进行比较基础上,提出了一种新的量化矩阵——hs量化矩阵。试验证明,hs量化矩阵在图像质量和压缩率方面较适合PSTN远程图像监控系统的要求。
Aiming at the application of PSTN remote image monitoring system, this paper presents a new quantization matrix - hs quantization matrix based on the comparison of quantizer in h.263, JPEG and MPEG. Experiments show that hs quantization matrix is more suitable for PSTN remote image monitoring system in image quality and compression rate.