1) visible noise
可见噪声<声>
2) noise visible control
噪声可见性控制
1.
Image adaptive watermarking algorithm based on noise visible control in ridgelet domain;
图像噪声可见性控制的脊波域自适应水印算法
3) noise visibility function
噪声可见性函数
1.
Research of Image Steganographic Method Based on Noise Visibility Function and Substitution Table;
基于噪声可见性函数和替换表的图像隐写方法研究
2.
An channel selection method based on tolerable noise was put forward, from the image itself future, every channel s maximum watermark amplitude can be obtained while meeting conditions of invisibility as well as combining with human visual system and noise visibility function.
该文提出了一种基于噪声允许的信道选择方案,根据图象自身特点,结合人眼视觉模型和噪声可见性函数,找出了在满足不可见性条件下每个信道可嵌水印的最大强度。
3.
The method uses the Noise Visibility Function to analyze the resistance ability of noise for each coefficient after the discrete wavelet transform,and then more than one bit is embedded into the coefficient with a stronger resistance ability of noise at the same time according .
该算法用噪声可见性函数对小波分解后的系数进行容噪能力分析,根据划定的阈值在容噪能力较强的系数上同时嵌入多个比特,并结合小波域视觉可见误差门限JND值,实现了水印强度的自适应调整。
4) unusual noise
罕见的噪声
5) addition noise
可加噪声
6) audible noise
可听噪声
1.
Source and characteristics of audible noise of AC substations;
交流变电站可听噪声来源及特性分析
2.
Prediction of audible noise of AC UHV transmission lines based on relevance vector machine
基于相关向量机的交流特高压输电线路可听噪声的预测研究
3.
Based on the three-phase double-circuit overhead transmission line model,the influences of the conductor-to-ground height,the conductor sequence,numbers and spacing of the split conductors,and the diameter of the sub-conductor on the power frequency electric field and magnetic field,the radio interference(RI),and the audible noise(AN) are analyzed.
以三相双回架空线路为模型,分析了导线对地高度、相序布置、分裂导线的根数、分裂间距、分裂导线子导线直径等因素变化对工频电场、工频磁场、无线电干扰和可听噪声的影响;提出了改善线路周围电磁环境的措施;根据工频电场的限值划定线路走廊的宽度;并分别比较了大雨、湿导线和晴天时输电线路周围的无线电干扰和可听噪声。
补充资料：噪声等效声级（简称LEQ）
噪声等效声级（简称LEQ）：是指在规定的时间内，某一连续稳态声的A\[计权\]声压，具有与时变的噪声相同的均方A\[计权\]声压，则这一连续稳态声的声级，就是此时变噪声的等效声级。噪声等效声级(分贝）数值越小越好。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条