噪

There is much noise in the state of eyes opening unforcedly, so the noise processing is necessary, the upper and lower eyelids are removed by parabola fitting, the facular is removed by neighboring gray average, the eyelashes are removed by finding all the candidate eyelashes by local gray minimum firstly, then the false eyelashes are removed by the beginning location, directional and length information of the eyelashes.

在人眼自然睁开状态下存在噪声，因此需要进行去噪操作：通过抛物线拟合的方法去除上、下眼睑；利用邻域灰度均值法去除光斑；去除眼睫毛时先用局部灰度极小值的方法找到所有候选眼睫毛点，然后利用眼睫毛的起始信息、方向信息和长度信息去除伪眼睫毛点。

During uniaxal compression AE test of rock, the noise at ends of the specimen and from the load system are not eliminated efficiently by existing ways.

在岩石单轴压缩声发射实验中，现有的各种排噪措施还不能有效地排除加载系统和试件端部产生的噪音。

On the basis of the statistical characterestics of satellite meteorological infrared cloud charts this paper presents a coding algorithm of "Sub sampling+Modified JPEG+Image enlarging",realizing a compression ratio of 50∶1～100∶1, with the PSNR of 35～40dB and visually unperceptible distortion.

依据GMS卫星红外气象云图的统计特性，提出了一种&亚抽样＋修改的JPEG＋图象放大&的静止图象编码方法，使有失真压缩比在50∶1至100∶1时，恢复图象峰值信噪比在35dB～40dB之间，主观质量无视觉可觉察到的失真。

To meet the needs, a novel low-noise fiber laser with compound cavity structure is designed. The stable single-mode operation is realized by using a transient self-written fiber grating, produced by the effect of saturable absorption within a section of unpumped erbium-doped fiber, as narrow band filter for mode selecting and linewidth squeezing. Through optical path modification, the spectral signal-to-noise ratio is better than 62 dB.

激光器采用复合腔结构，以掺铒光纤作为工作物质，通过在未被抽运的掺铒光纤中形成的瞬态自写入光纤光栅的窄带滤波特性进行选模和压窄线宽，产生稳定的单频激光输出；经过光路改进，激光输出光谱信噪比优于62 dB；利用光电负反馈电路，弛豫振荡峰下降了约25 dB，低频段强度噪声也大为改善，有效地抑制了光源的强度噪声。

In the second case, the voter's COR output is derived from the absence of pilot tones which each remote receiver produces unitl it becomes unsquelched.

第二种方式，比选器的COR输出是来自于不存在的由每一台远端接收机产生的测试单音，直至该单音成为非静噪输出。

Existing cleaning algorithms haven't considered the factor of sensor density's ununiformity and information congestion,so they will consume more energy.

现存的去噪算法没有考虑节点密度不均匀及信息拥塞的情况，从而过多地消耗了能量。

A new system design based on the conception of SOC is also given. Processing and tracking algorithms. Put forward some IR image algorithms by analyzing the characteristics of IR image such as: low contrast、ununiformity、wide gray dynamic range.

在红外图像处理算法方面，分析了焦平面红外图像具有的低信噪比、宽图像动态范围及图像非均匀性等特性，结合实际硬件条件，提出了直方图归一化、去冗余灰度均衡、受限空域锐化、多帧平均等处理算法，在实际应用中取得良好效果。

Starting from the output signal-to-noise ratio of vibration tables, the basic requirements of background noise of the foundation are determined, then the dynamic analysis of the foundation for tables and a laser vibrometer, and the static analysis of the foundation for the laser vibrometer are done with finite element method.

首先以振动台台面输出信噪比为出发点，确定了超低频标准振动台基础噪声的基本要求；然后采用有限元分析的数值方法，分别对振动台基础与激光测振仪基础作动力学分析，再对激光测振仪基础作静力学分析。

Reducing the complexity of vector quantization is still a main problem. This paper presents a new algorithm of minimum distortion predicting vector quantization based on intraband and interband correlation. Here the whole distortion of the vector is predicted by the part distortion of the lower frequency coefficient components of vector, resulting in a reduction of 76 percent of complexity.

降低矢量量化器的复杂度一直是人们研究的一个主要问题，本文提出一种新的基于带间相关性的最小失真预测矢量量化算法，通过矢量中前面部分低频系数分量失真的计算去预测整个矢量的失真，编码复杂度降低了76％，而解码图像信噪比下降不到1dB。

The results obtained from both synthetic signals and real data indicate that the denoising method based on the modul...

对模拟数据和实测数据的处理结果表明，基于小波分解模极大值的去噪方法能够有效剔除土木工程变形监测数据中的噪声，识别被噪声湮没的有用信号。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。