提出了一种充分利用人类视觉系统特性的MPEG视频码流码率转换方法。
In this paper, we propose a new bit-rate transcoding method for MPEG video streams, which can utilize human visual system characteristics adequately.
小波变换提供了一种图像的多分辨率分解重建的表示形式，这种小波分解能够有效的利用人类视觉系统的特性压缩图像。
Wavelet provides a compact multi-resolution representation and reconstruction of image, which makes it possible to exploit the property of Human Visual System for image coding.
利用人类视觉系统的纹理掩蔽特性和照度掩蔽特性自适应调整量化间距，以保证水印的透明性。
It utilizes the HVS peculiarity to change the quantization interval adaptively and ensure the visibility of the watermark.
利用人类视觉系统对文本行间距和行起始位置的信息不敏感这一特性，提出了一种增加信息隐藏容量的基于文本的信息隐藏算法。
Presents an algorithm of text steganography according to the insensitivity of HVS( Human Vision System) to space of lines and the original place in each row.
利用人类视觉系统对文本行间距和行起始位置的信息不敏感这一特性，提出了一种增加信息隐藏容量的基于文本的信息隐藏算法。
Presents an algorithm of text steganography according to the insensitivity of HVS( Human Vision System) to space of lines and the original place in each row.
应用推荐