Before quantifying, the wavelet coefficients should be given a vision weight, and then organized in the way of across different subbands according to the same direction.
进行矢量量化前,首先对小波系数进行视觉加权,然后采用了同向跨频带的方法将小波系数进行矢量组织。
参考来源 - 基于矢量量化的医学图像压缩编码算法的研究·2,447,543篇论文数据，部分数据来源于NoteExpress
最后提出了一种改进的评价方法——视觉加权信噪比模型(VWSNR)。
Finally, an improved algorithm of image quality assessment is presented, which is Vision and Weighted Signal-to-Noise Ratio (VWSNR).
进行矢量量化前，首先对小波系数进行视觉加权，然后采用了同向跨频带的方法将小波系数进行矢量组织。
Before quantifying, the wavelet coefficients should be given a vision weight, and then organized in the way of across different subbands according to the same direction.
基于人眼视觉特性的加权因子改变编码位序而不是编码值，该算法有更快的编码速度以及较好的压缩效果。
The human visual weighting factor change the order of coding rather than the value of coding. The algorithm has much faster coding speed and better compression effect.
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