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公开(公告)号：US4275415A
公开(公告)日：1981-06-23
申请号：US960212
申请日：1978-11-13
申请人： Gary L. Engle
发明人： Gary L. Engle
CPC分类号： G01S7/531 , G01N29/06 , G01N29/0609 , G01S7/52063
摘要： A scan converter, used in an imaging system, for inverting the R-.theta. format of stored data into a format compatible with video display. As the video display is scanned horizontally, the .theta. addresses are sequentially addressed by means responsive to the scan position. The switch points thus defined are updated within succeeding video lines in accordance with trigonometric relationships between the video lines and the radial lines. Means responsive to the scanning of a reference video line initializes the switch point values in accordance with respective intersection points of the displayed radial lines and the reference video line.The R coordinate is similarly initialized and updated in accordance with trigonometric relationships between the radial lines and the video lines.
摘要翻译： 一种在成像系统中使用的扫描转换器，用于将存储的数据的R-θ格式反转成与视频显示兼容的格式。 当视频显示器被水平地扫描时，通过响应于扫描位置的方式顺序地寻址θ地址。 根据视频线和径向线之间的三角关系，如此定义的切换点在随后的视频行内被更新。 响应于参考视频线的扫描的装置根据所显示的径向线和参考视频线的相应交点初始化切换点值。 根据径向线和视频线之间的三角关系，类似地对R坐标进行初始化和更新。
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公开(公告)号：US3953825A
公开(公告)日：1976-04-27
申请号：US487979
申请日：1974-07-12
CPC分类号： G01S15/8925 , G01S7/531
摘要： An improved electronically focused imaging system for focusing transmitted acoustic waves into a focal line and for scanning the focal line for waves either reflected or transmitted from an object of interest. The system includes N transducer elements in a transmitter array and N transducer elements in a receiver array. These 2N elements can resolve N.sup.2 locations on the object of interest. In one embodiment the transmitter array is pulsed through a delay line that is activated by two, independent, frequency varying chirp signals. In this embodiment the receiver array is focused to scan the focal line and to develop a rectangular raster so that the output of the system is viewable on an oscilloscope or a television screen. In another embodiment the transmitter array is pulsed by a delay line activated by one chirp signal and a 45.degree. raster is developed.
摘要翻译： 一种改进的电子聚焦成像系统，用于将发射的声波聚焦到焦线中并用于扫描用于从感兴趣对象反射或发射的波的焦线。 该系统包括发射机阵列中的N个换能器元件和接收器阵列中的N个换能器元件。 这2N个元素可以解析感兴趣对象上的N2个位置。 在一个实施例中，发射器阵列通过由两个独立的频率变化啁啾信号激活的延迟线脉冲。 在该实施例中，接收器阵列被聚焦以扫描焦线并开发矩形光栅，使得系统的输出可在示波器或电视屏幕上观看。 在另一个实施例中，发射器阵列被由一个啁啾信号激活的延迟线脉冲，并且45°光栅被开发。
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公开(公告)号：US20180149746A1
公开(公告)日：2018-05-31
申请号：US15822038
申请日：2017-11-24
申请人： 8517401 Canada Inc.
CPC分类号： G01S15/8977 , A61B8/52 , G01S7/52019 , G01S7/52026 , G01S7/52031 , G01S7/52046 , G01S7/52093 , G01S7/531 , G01S15/8906 , G01S15/8913 , G01S15/8959 , G06F19/321 , G16H50/50 , H04B1/709 , H04B2201/70715 , H04B2201/70716 , H04J13/0033 , H04L27/364 , H04L27/38
摘要： An imaging system that utilizes deterministic bit sequences modulated onto an in-phase component of a carrier frequency and continuously transmitted via a transducer and received for imaging a medium and/or environment is provided. The received signal is demodulated by an in-phase demodulator and a quadrature demodulator and the demodulated components are processed to provide a spatial mapping of a medium or environment being imaged.
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公开(公告)号：US4703440A
公开(公告)日：1987-10-27
申请号：US14211
申请日：1987-02-05
申请人： Adalbert Birk , Ulrich Saugeon
发明人： Adalbert Birk , Ulrich Saugeon
IPC分类号： G01S7/539 , A61B8/00 , G01N29/04 , G01N29/44 , G01S7/52 , G01S7/531 , G01S7/62 , G01S15/89 , G06F15/72 , H04N7/01
CPC分类号： G01S7/531 , G01S7/52063 , G01S7/52044
摘要： A method and apparatus for processing ultrasonic echo signals employ intermediate storage and representation of the echo signals in the form of image vectors, such storage and representation proceeding independently of the scanning technique utilized to generate the image vectors, such that switching among various scanning techniques is permitted. The full length of each image vector is written into an image memory in column fashion, the stored vectors being read out as image signals in a format suitable for specific types of representation, such as on a television monitor, the format instructions being contained in a memory or generated by an arithmetic unit. Upon read out from the image memory, the geometric form of the ultrasonic scan is reconstructed in a position and form corresponding to the actual scan, and the ultrasonic echo signals are similarly represented at their true positions.
摘要翻译： 用于处理超声波回波信号的方法和装置采用图像向量的形式的中间存储和回波信号的表示，这种存储和表示独立于用于产生图像矢量的扫描技术进行，使得各种扫描技术之间的切换是 允许的 将每个图像向量的全长以列的方式写入图像存储器中，存储的矢量作为图像信号以适合于特定类型的表示的格式被读出，诸如在电视监视器上，格式指令包含在 存储器或由算术单元生成。 从图像存储器读出时，以对应于实际扫描的位置和形式重建超声波扫描的几何形状，并且超声波回波信号在其真实位置处被类似地表示。
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15.发明授权Method and apparatus for representing ultrasonic echo signals arriving in polar coordinates 失效用于表示到达极坐标的超声波回波信号的方法和装置
公开(公告)号：US4618887A
公开(公告)日：1986-10-21
申请号：US589656
申请日：1984-03-14
申请人： Adalbert Birk
发明人： Adalbert Birk
CPC分类号： G01S7/531 , G01S7/52063 , G01S7/52044
摘要： A method and apparatus for representing ultrasonic echo signals arriving in polar coordinates which are obtained by means of a sector scan technique and which are intermediately stored for the purpose of subsequent display conforming to television standards alternately supply the echo signals to one of at least two complete image memories having respective two-dimensional matrix memory formats. The image memories operate an alternating buffer memories and eliminate the need for conventionally employed vector memories and horizontal memories while nonetheless permitting complete representation of the ultrasonic scans in the form of television images.
摘要翻译： 用于表示通过扇形扫描技术获得并且为了随后符合电视标准的显示而中间存储的极坐标的超声回波信号的方法和装置交替地将回波信号提供给至少两个完整的 图像存储器具有相应的二维矩阵存储器格式。 图像存储器操作交替的缓冲存储器，并且消除对常规使用的矢量存储器和水平存储器的需要，同时允许以电视图像的形式完全表示超声波扫描。
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公开(公告)号：US4212072A
公开(公告)日：1980-07-08
申请号：US884327
申请日：1978-03-07
IPC分类号： A61B8/00 , G01S7/298 , G01S7/52 , G01S7/531 , G06F3/14 , G09G1/14 , G09G1/16 , H01J31/58 , G06F15/20 , H04N5/14
CPC分类号： G01S7/298 , G01S7/52028 , G01S7/531
摘要： A digital scan converter is provided with a programmable transfer function for video display of picture elements (pixels) using a main random access memory for storing a pixel array to be read out periodically for display, and to be selectively read out while scanning for updating with a value derived from an auxiliary random access memory addressed by the composite of an old pixel value to be updated and the new pixel value. Each memory location of the auxiliary memory stores a value derived from a table defining the transfer function desired for the entire range of new and old pixel values. An alternate transfer function is stored in a second block of the memory and selectively called out by a prefix set to a 1 or 0 in the most significant bit position of the composite address word.
摘要翻译： 数字扫描转换器具有可编程传递功能，用于使用主随机存取存储器来存储要周期性地读出的像素阵列用于显示的图像元素（像素）的视频显示，并且在扫描更新时选择性地读出， 从由要更新的旧像素值和新像素值的合成器寻址的辅助随机存取存储器导出的值。 辅助存储器的每个存储器位置存储从定义新旧像素值的整个范围所需的传递函数的表导出的值。 备用传递函数存储在存储器的第二块中，并且通过在复合地址字的最高有效位位置中设置为1或0的前缀选择性地调出。
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公开(公告)号：US4184206A
公开(公告)日：1980-01-15
申请号：US884328
申请日：1978-03-07
申请人： Allen A. Harano
发明人： Allen A. Harano
IPC分类号： A61B8/00 , G01S7/10 , G01S7/298 , G01S7/52 , G01S7/531 , G01S7/62 , G06T1/00 , G06T9/20 , G09G5/00 , G09G5/20 , G09G5/36 , H04N7/18 , G06F15/20
CPC分类号： G01S7/531 , G01S7/10 , G01S7/5206 , G06T1/0007
摘要： A technique of encoding digitized video input signals to an arrayed display memory in a manner to maximize the probability of entering the best picture element (pixel) value into a particular X,Y location by effectively dividing a pixel area into an array of subpixels, and weighting the value of pixel as a function of the position of a display vector through the subpixel array. First the location of a vector to be displayed in an X-Y coordinate system is determined, and then with respect to the subpixel array of each pixel, it is determined whether the vector traverses a core or central area, an edge or a corner. For these respective vector locations, the pixel value is weighted, for example, 100%, 50% and 0%.
摘要翻译： 一种将数字化视频输入信号编码到阵列显示存储器的技术，其方法是通过有效地将像素区域划分为子像素阵列来最大化将最佳像素（像素）值进入特定X，Y位置的概率，以及 将像素的值作为通过子像素阵列的显示向量的位置的函数进行加权。 首先确定要在X-Y坐标系中显示的矢量的位置，然后相对于每个像素的子像素阵列，确定矢量是穿过一个核心还是中心区域，边缘或角落。 对于这些各个矢量位置，像素值被加权，例如100％，50％和0％。
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公开(公告)号：US3792194A
公开(公告)日：1974-02-12
申请号：US3792194D
申请日：1972-06-05
摘要： A video magnetic disk is utilized in the conversion of side looking sonar or slow scan TV data into a form suitable for displaying as a flicker-free picture on a conventional TV monitor. In the side looking sonar mode of operation, provision is made for displaying the sonar information as a moving window display.
摘要翻译： 视频磁盘用于将侧视声纳或慢扫描电视数据转换成适合于在常规电视监视器上显示为无闪烁图像的形式。 在侧视声纳操作模式中，提供将声纳信息显示为移动窗口显示。
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公开(公告)号：US4745475A
公开(公告)日：1988-05-17
申请号：US807349
申请日：1985-12-10
申请人： John Bicknell
发明人： John Bicknell
摘要： A system for converting A-scan signals in r, .theta. co-ordinates into display data for x, y co-ordinate display locations, in which, for each A-scan signal, signal values for which the r co-ordinate is greater than a predetermined value contribute to the display data and values for which the r co-ordinate is less do not, and the predetermined values of r are different for different A-scans. FIG. 2 shows pixels, or display locations, close to the origin of an x, y rastor display. The lines radiating from the origin show the r, .theta. co-ordinates of A-scan signals derived from a radar antenna, superposed for purposes of illustration on the grid of pixels. The display data used to brighten an individual pixel is taken only from some, and not from all, of the A-scans which intercept that pixel. In particular, no data is taken from the portions of the A-scans which lie radially inwardly of the points 28 to 36, but data is taken from the portions of the A-scans that lie radially outwardly.
摘要翻译： 用于将r，θ坐标中的A扫描信号转换成用于x，y坐标显示位置的显示数据的系统，其中对于每个A扫描信号，r坐标的信号值大于 预定值有助于显示数据和r坐标较少的值，并且r的预定值对于不同的A扫描是不同的。 图。 2显示靠近x，y rastor显示原点的像素或显示位置。 从原点辐射的线表示从雷达天线导出的A扫描信号的r，θ坐标，用于在像素网格上进行说明。 用于使单个像素变亮的显示数据仅取自截取该像素的A扫描中的某些而不是全部。 特别地，没有从位于点28至36的径向向内的A扫描的部分获取数据，而是从径向向外的A扫描的部分获取数据。
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公开(公告)号：US4689675A
公开(公告)日：1987-08-25
申请号：US737247
申请日：1985-05-23
CPC分类号： G01S7/52044 , G01S7/298 , G01S7/531
摘要： A digital scan converter with an initialization circuit. The initialization circuit, for example, a dedicated circuit or a computer, relates each pixel in a converted image to two or more respective pixels which lie adjacent to it and which are selected from an original image which is generated by a scanner. The initialization circuit also calculates and makes available interpolation constants to be used in deriving the value of a given pixel in terms of its respective, adjacently lying, group of pixels. When the converted image has a raster scan format, a satisfactory image is obtained when the respective group of pixels consists of two pixels between which lies the pixel whose value is to be calculated. By predefining the relationship between the pixels in the converted and original images before actual conversion begins real time operation is achieved.
摘要翻译： 具有初始化电路的数字扫描转换器。 初始化电路，例如专用电路或计算机将转换后的图像中的每个像素与位于其相邻的两个或更多个相应的像素相关联，并且从由扫描仪生成的原始图像中选择。 初始化电路还计算并使可用的内插常数用于根据其相应的相邻的像素组来导出给定像素的值。 当转换的图像具有光栅扫描格式时，当相应的像素组由两个像素构成时，获得令人满意的图像，其间位于要计算其值的像素。 通过预先确定实际转换开始之前的转换和原始图像中的像素之间的关系，实现实时操作。
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