At the same time , watermark casting is performed by exploiting the masking characteristics of the human visual system 另外，文中实现了灰度水印的嵌入。实验证明，本算法很好满足水印技术的要求。
So a fr algorithm is designed by fusing holistic and local features in subspaces , which is inspired by human visual system ( hvs ) 本文模仿人类视觉系统的特点,提出了融合局部和整体特征子空间的算法。
This thesis discusses the human visual system and its applications in the field of information hiding in terms of digital images 本文主要针对数字图像，探讨了人类视觉系统（ hvs ）及其在信息隐藏方面的应用。
An improved digital image hiding methods based on human visual system ( hvs ) is presented in this paper and related data embedding and extracting algorithms are addressed in detail 摘要提出一种基于人类视觉系统( hvs )的数字图像隐藏算法，并给出了具体的嵌入和提取算法。
In this section , the characteristics of human visual system are introduced into bit allocation of coder , in order to improve subject visual quality of reconstructed images 在这一部分，我们将人类视觉特性引入到匹配跟踪编码器的位分配过程中，试图提高恢复图像的主观视觉效果。
Then we put forward a kind of improved digital watermark algorithm based on chaos array according to the shelter character of luminance and texture of the human visual system 接着在小波分析理论的基础上，利用混沌序列的伪随机性和图像作为水印的可视性，提出了一种基于混沌序列的数字水印改进算法。
To improve the origin image similarity metric , we propose a new metric called human visual system base metric ( hvs metric ) , the goal of the hvs metric is to meet the characteristic of the human visual system 针对原有帧间相似性尺度的不足，我们提出了一个符合人眼视觉特征的图像相似性尺度? hvs尺度?用于视频纹理合成。
Ridgelet transform decompose the spatial frequency domain into some subbands with different directions and frequencies . this hierarchy matchs the multi - channel model of hvs ( human visual system ) better than wavelet transform 由于小脊变换的特点，使得在小脊变换域中建立视觉模型比在dct 、 dwt域中建模更自然，更有优势。
This dissertation analyses and measures the difference of perception and discrimination to color between the human visual system and ccd , and revises the difference by rgb tristimulus based on white point 本文分析、测量了人眼与ccd对彩色刺激的响应的异同点，通过基于参考白点的rgb浙江大学博士学位论文三刺激值校正了这部分彩色量的差异。
Then we make a deep research on human visual system and wavelet transformation , and a new wavelet watermarking method based on hvs is proposed to solve the conflict between robustness and imperceptibility 在此基础上，论文又将人眼视觉系统和小波变换结合在一起，提出了一种基于hvs的小波水印算法，人眼视觉模型的应用缓解了算法鲁棒性和不可见性间的矛盾。
