公开(公告)号：US5414466A

公开(公告)日：1995-05-09

申请号：US13205

申请日：1993-02-01

申请人： Xavier Noreve ,  Michel Terre ,  Luc Fety

发明人： Xavier Noreve ,  Michel Terre ,  Luc Fety

IPC分类号： H04N5/243 ,  G06T5/00 ,  H04N5/217 ,  H04N5/33 ,  H04N5/365 ,  H04N5/335 ,  H04N3/14

CPC分类号： H04N5/3655 ,  G06T5/002 ,  H04N5/365 ,  H04N5/33

摘要： The analysis of an image of the field of observation from a heat camera by bands of n lines prompts the appearance of streaks or "striping" in certain zones of the image, all these zones constituting a "striping space". The device for the implementation of the method includes means to determine a base of orthonormal functions H and V, generating a vector space of functions for which the values taken, at each point of the image, represent the luminance values of all the types of striping, means to modelize the striping exhibited by the image in determining the coefficients of distribution of this striping on the basic functions, means to synthesize the striping, in determining the luminance values of the striping from the coefficients of correlation and from the values of he basic functions, and, finally, means to substract the luminance values of the synthesized striping from the luminance values of the initial image.

摘要翻译： 通过n行的频带对来自加热相机的观测场的图像的分析提示在图像的某些区域中出现条纹或“条纹”，所有这些区域构成“条纹空间”。 用于实施该方法的装置包括用于确定正交函数H和V的基础的装置，产生功能的向量空间，在该向量空间中，在图像的每个点处所采取的值代表所有类型条纹的亮度值 用于在确定该条纹对基本功能的分布系数的确定中对图像显示的条带进行建模的手段，在从相关系数的值和从基本值的值中确定条带的亮度值时，合成条纹的手段 功能，并且最后，意味着从初始图像的亮度值中减去合成条纹的亮度值。

公开(公告)号：US5214720A

公开(公告)日：1993-05-25

申请号：US732917

申请日：1991-07-19

申请人： Luc Fety ,  Michel Terre ,  Xavier Noreve

发明人： Luc Fety ,  Michel Terre ,  Xavier Noreve

IPC分类号： H04N7/18 ,  G01S3/786 ,  G06T5/00

CPC分类号： G06T7/0083 ,  G01S3/7868 ,  G06T2207/10016 ,  G06T2207/30252

摘要： According to the method, after a step for the digital processing of the video signal of the image analyzed by rows, there is determined, for each row, on the basis of the distribution of the mean light energy values below and above each position of the row, a step modelling function, the jump position of which gives the position of the horizon in this row. The device used to implement this method includes a sampler of the video signal coupled with a flip flop memory through an accumulator which adds up the luminance values row by row, and a processor which, on the basis of the distribution of the mean light energy levels, computes the signal to be subtracted from the digital video signal by means of a subtractor. The disclosed method and device can be applied to the detection of the horizon from an image analyzed by columns or by lines.

摘要翻译： 根据该方法，在对由行分析的图像的视频信号进行数字处理的步骤之后，基于每个行的每个位置之下和之上的平均光能值的分布，确定每行 行，一个步骤建模功能，其跳转位置给出了该行中的水平位置。 用于实现该方法的装置包括通过累加器耦合到触发器存储器的视频信号的采样器，其逐行地将亮度值相加，以及处理器，其基于平均光能级的分布 ，通过减法器计算要从数字视频信号中减去的信号。 所公开的方法和装置可以应用于通过列或行分析的图像的水平检测。

公开(公告)号：US08149931B2

公开(公告)日：2012-04-03

申请号：US11999467

申请日：2007-12-04

申请人： Jean-Eric Negre ,  Emmanuel Senechal ,  Luc Fety ,  Michel Terre

发明人： Jean-Eric Negre ,  Emmanuel Senechal ,  Luc Fety ,  Michel Terre

IPC分类号： H04K1/10

CPC分类号： H04L27/2614

摘要： The invention proposes a data transmission process, from a first unit (1) situated at a predetermined depth of an oil well to a second unit (2) situated at the surface of this well, the process comprising a digital-analog conversion stage (8) of the data to obtain an analog signal forming support of the data, and an amplification stage (9) of this signal prior to its emission in a cable (11) connecting the two units, characterized in that at least two distinct scramblings (20, 21) of the data are completed, such that there is a first and a second set of scrambled data. After passage in a single complex inverse Fourier transform, that intended for emission is selected (26), whereof the dynamic in amplitude is the lowest. If the probability of saturating with a single set is 10−q, then due to this process the probability will be 10−2q.

摘要翻译： 本发明提出了一种从位于油井预定深度的第一单元（1）到位于该井表面的第二单元（2）的数据传输过程，该处理包括数模转换级（8 ）以获得形成数据支持的模拟信号，以及在连接两个单元的电缆（11）中发射之前的该信号的放大级（9），其特征在于，至少两个不同的加扰（20 ，21）完成，使得存在第一和第二组加扰数据。 在通过单个复数傅里叶逆变换之后，选择用于发射的（26），其幅度的动态最低。 如果单个集合饱和的概率为10-q，则由于该过程，概率将为10-2q。

公开(公告)号：US20080215655A1

公开(公告)日：2008-09-04

申请号：US11999467

申请日：2007-12-04

申请人： Jean-Eric Negre ,  Emmanuel Senechal ,  Luc Fety ,  Michel Terre

发明人： Jean-Eric Negre ,  Emmanuel Senechal ,  Luc Fety ,  Michel Terre

IPC分类号： G06F17/14 ,  G01V3/34 ,  H04B3/00 ,  H04L27/20

CPC分类号： H04L27/2614

摘要： The invention proposes a data transmission process, from a first unit (1) situated at a predetermined depth of an oil well to a second unit (2) situated at the surface of this well, the process comprising a digital-analog conversion stage (8) of the data to obtain an analog signal forming support of the data, and an amplification stage (9) of this signal prior to its emission in a cable (11) connecting the two units, characterised in that at least two distinct scramblings (20, 21) of the data are completed, such that there is a first and a second set of scrambled data. After passage in a single complex inverse Fourier transform, that intended for emission is selected (26), whereof the dynamic in amplitude is the lowest. If the probability of saturating with a single set is 10−q, then due to this process the probability will be 10−2q.

摘要翻译： 本发明提出了一种从位于油井预定深度的第一单元（1）到位于该井表面的第二单元（2）的数据传输过程，该处理包括数模转换级（8 ）以获得形成数据支持的模拟信号，以及在连接两个单元的电缆（11）中发射之前的该信号的放大级（9），其特征在于，至少两个不同的加扰（20 ，21）完成，使得存在第一和第二组加扰数据。 在通过单个复数傅里叶逆变换之后，选择用于发射的（26），其幅度的动态最低。 如果使用单个集合饱和的概率为10〜-q，则由于该处理，概率为10〜-2q。

公开(公告)号：US06522703B1

公开(公告)日：2003-02-18

申请号：US09363840

申请日：1999-07-30

申请人： Valérie Cueff ,  Michel Terre

发明人： Valérie Cueff ,  Michel Terre

IPC分类号： H04L2718

CPC分类号： H04L27/2332

摘要： The invention relates to a method of estimating the frequency offset of a packet of phase modulated symbols received with phase error, the method comprising: applying a phase correction to the symbols of the received packet for all possible pairs of frequency offset and phase offset; and selecting from said offset pairs, the pair which provides the most likely packet of corrected symbols, thereby determining the frequency offset of the received packet. Compared with known solutions, the invention makes it possible to reduce errors concerning estimated frequency. Advantageously, the method comprises a step of quantizing the possible phase corrections, thereby making it possible to reduce the complexity of the calculations to be performed, without degrading performance.

摘要翻译： 本发明涉及一种估计相位误差接收的相位调制符号的分组的频偏的方法，该方法包括：针对所有可能的频偏和相位偏移对，对接收分组的符号应用相位校正; 并且从所述偏移对中选择一对，其提供最可能的校正符号分组，从而确定接收到的分组的频率偏移。与已知解决方案相比，本发明使得可以减少关于估计频率的误差。 有利地，该方法包括量化可能的相位校正的步骤，从而可以降低要执行的计算的复杂性，而不降低性能。