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公开(公告)号：US20220381891A1
公开(公告)日：2022-12-01
申请号：US17744550
申请日：2022-05-13
申请人： FLIR Belgium BVBA
发明人： Reid Ruland , Philip Webb
摘要： Techniques are disclosed for systems and methods to provide reliable and relatively quick bottom reacquisition in sonar systems for mobile structures, including three dimensional (3D) capable and/or multichannel sonar systems. A sonar system includes a sonar transducer and associated processing and control electronics and optionally orientation and/or position sensors disposed substantially within the housing of a sonar transducer assembly. A logic device of the sonar system is configured to detect bottom lock loss based, at least in part, on sonar data provided by the sonar transducer, determine an expected bottom depth associated with the detected bottom lock loss, and generate updated sonar data based, at least in part, on the expected bottom depth. Resulting sonar data and/or imagery may be displayed to a user and/or used to adjust a steering actuator, a propulsion system thrust, and/or other operational systems of the mobile structure.
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公开(公告)号：US07504994B2
公开(公告)日：2009-03-17
申请号：US10559127
申请日：2004-05-24
CPC分类号： G01S7/064
摘要： There is configured a radar or similar device that outputs received data that is currently being received and scan correlated image data in parallel with each other. Scan correlated image data and display image data resulting from received data from a display video memory 13 are input into a transitional data generator 11, and the transitional data generator 11 generates transitional data that represents an intermediate value and gradually changes from the received data into the scan correlated image data, using these signals, and inputs the transitional data into a selector 12. The received data, a FIRST or a LAST signal, and the transitional data are input into the selector 12, and the selector 12 outputs the received data if FIRST=1, and outputs the transitional data if FIRST=0, to the display video memory 13. This image data is fed back to the transitional data generator 11, and therefore it gradually changes from the received data into the scan correlated image data.
摘要翻译： 配置了雷达或类似设备，其输出当前正在接收的接收数据，并相互并行地扫描相关图像数据。 扫描相关图像数据和从显示视频存储器13的接收数据产生的显示图像数据被输入到过渡数据发生器11中，并且过渡数据发生器11产生表示中间值的过渡数据，并从接收到的数据逐渐变为 使用这些信号扫描相关图像数据，并将过渡数据输入到选择器12.所接收的数据，FIRST或LAST信号和过渡数据被输入到选择器12中，并且选择器12输出接收到的数据，如果 FIRST = 1，并且如果FIRST = 0则将过渡数据输出到显示视频存储器13.该图像数据被反馈到过渡数据发生器11，因此它从接收的数据逐渐变为扫描相关图像数据。
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公开(公告)号：US5091721A
公开(公告)日：1992-02-25
申请号：US289161
申请日：1988-12-22
申请人： Alfred S. Hamori
发明人： Alfred S. Hamori
IPC分类号： G06F3/153 , G01S7/531 , G01S7/62 , G06T11/00 , G09G5/393 , G10L11/00 , G10L11/02 , G10L15/04
摘要： A display generator (23) which converts acoustic sensor data stored in a bulk memory (19) into data which is displayed on a raster-type monitor. The display generator (23) provides for pixel processing and manipulation capabilities supported by a pixel formatter (65), a pixel mover (69), and an acoustic controller (57) with local memory (55). The display generator (23) converts acoustic data from a predetermined sensor format into a variety of display formats compatible with the raster-type monitor. The acoustic controller is a pixel build algorithm processor used to initialize and monitor the display generator (23) in real time. It provides for pixel address generation to construct the images in the bit mapped memory (25). The formatter (65) is an independent processor having its own controller and control algorithm processor which provides for parallel processing of the data in parallel with and independent from the operations of the pixel mover (69) and controller (57). Consequently, the display generator (23) provides for parallel pipelining of data from the bulk memory (19) to the bit mapped memory (25). The display generator (23) also permits rapid updates of the displayed image without reconstructing the entire image utilizing the pixel mover (69). The pixel mover (69) updates selected areas of the image stored in the bit mapped memory (25) by operating on multiple pixels at a time, in particular, multiple blocks of pixels comprising sixteen pixels each.
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公开(公告)号：US4862427A
公开(公告)日：1989-08-29
申请号：US137525
申请日：1987-12-22
申请人： David Almagor , John M. Peters
发明人： David Almagor , John M. Peters
CPC分类号： G01S15/87 , G01S15/04 , G01S7/003 , G01S7/531 , G01S7/536 , G01S7/6227 , G01S7/6263
摘要： A continuous-transmission frequency-modulated (CTFM) scan converted sonar with improved capability for detecting swimmers, miniature submarines and other small intruders in harbors and inlets, and adjacent offshore structures. The system is microprocessor based and menu driven from an operator interactive touch screen. The system utilizes a fast fourier transform (FFT) based frequency analyzer for range discrimination. An area moving target indicator (AMTI) portion of the system cancels echo returns from stationary objects that otherwise mask the echo return of the moving targets. The AMTI causes the system to survey the search area for a number of consecutive scans and store the data. On successive scans, only target information that differs from the stored target map is displayed, thereby reducing clutter caused by surrounding terrain. The AMTI can activate an audio alarm, transmit a serial data alarm message, start a video recorder and annotate the system display to identify the bearing and range of the moving target that has been detected.
摘要翻译： 连续发射频率调制（CTFM）扫描转换声纳，具有更好的检测游泳者，微型潜艇和其他小型入侵者在港口和入口以及相邻海上结构的能力。 该系统是基于微处理器和菜单从操作员交互式触摸屏驱动的。 该系统采用基于快速傅里叶变换（FFT）的频率分析仪进行范围辨识。 系统的区域移动目标指示器（AMTI）部分从静止物体取消回波返回，否则屏蔽移动目标的回波返回。 AMTI使得系统对多个连续扫描的搜索区域进行调查并存储数据。 在连续扫描中，仅显示与存储的目标图不同的目标信息，从而减少周围地形引起的杂波。 AMTI可以激活音频报警，发送串行数据报警信息，启动录像机并注释系统显示，以识别已检测到的移动目标的方位和范围。
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公开(公告)号：US4574636A
公开(公告)日：1986-03-11
申请号：US613828
申请日：1984-05-24
申请人： Nozomi Satake
发明人： Nozomi Satake
CPC分类号： G01S7/52063 , A61B8/00 , G01N29/06 , G01S7/52044 , G01S7/52046
摘要： In an ultrasonic examination apparatus of the sector scanning type, a false contour appears in a tomographic image of an object due to a variation of the pixelizing, or digitizing precision over the entire scanning region, especially near the central ultrasonic scanning lines. A wobbling processor is provided in an address generator for write operation. When the echo signals, or the image signals obtained by the scanning of the central untrasonic scanning lines are written into pixels of a frame memory, the write-in addresses are processed by the wobbling processor so that the pixelizing precision can be made relatively uniform over the entire scanning region.
摘要翻译： 在扇区扫描型的超声波检查装置中，由于整个扫描区域，特别是中央超声波扫描线附近的像素化或数字化精度的变化，出现在物体的断层图像中的假轮廓。 在地址发生器中提供摆动处理器用于写入操作。 当回波信号或通过扫描中央非常规扫描线获得的图像信号被写入帧存储器的像素时，写入地址由摆动处理器处理，使得可以使像素化精度相对均匀 整个扫描区域。
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公开(公告)号：US4387365A
公开(公告)日：1983-06-07
申请号：US264108
申请日：1981-05-15
摘要： A digital scan converter is disclosed wherein signal information supplied by a sector scanning surveillance system relative to a polar coordinate system is converted to a signal for driving a television-type display or other Cartesian coordinate device by: (a) sampling the signal associated with each consecutive scanning path of the surveillance system at a rate determined by the azimuthal angle that defines the scanning path of interest; (b) storing each set of signal samples as a column of data in a rectangular memory array; (c) accessing the stored data on a row-by-row basis; and (d) utilizing a previously determined mapping strategy to cause each accessed signal sample to form a segment of a line of display within the Cartesian-formulated display devices so that the length of the segment formed by each signal sample is determined by the row and column address of the storage location that is associated therewith when forming a television compatible signal, each signal sample dictates video signal level during a portion of a corresponding horizontal sweep period that is determined by the mapping strategy.
摘要翻译： 公开了一种数字扫描转换器，其中由扇区扫描监视系统相对于极坐标系提供的信号信息被转换为用于驱动电视型显示器或其他笛卡尔坐标装置的信号，其方法是：（a）对与每个 以由限定感兴趣的扫描路径的方位角确定的速率的监视系统的连续扫描路径; （b）将每组信号样本作为数据列存储在矩形存储器阵列中; （c）逐行访问存储的数据; 以及（d）利用先前确定的映射策略来使每个被访问的信号样本在笛卡尔配方的显示设备内形成显示行的一段，使得由每个信号样本形成的段的长度由行和 在形成电视兼容信号时与其相关联的存储位置的列地址，每个信号样本在由映射策略确定的相应的水平扫描周期的一部分期间指定视频信号电平。
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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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9.发明授权Method and apparatus for tissue-centered scan conversion in an ultrasound imaging system 失效用于超声成像系统中用于组织中心扫描转换的方法和装置
公开(公告)号：US5538004A
公开(公告)日：1996-07-23
申请号：US396293
申请日：1995-02-28
申请人： Jeffrey C. Bamber
发明人： Jeffrey C. Bamber
CPC分类号： G01S7/52044 , A61B8/4245 , A61B8/4254 , G01S15/899 , G01S7/52074 , Y10S128/916
摘要： A method and apparatus for ultrasound imaging utilize tissue-centered scan conversion to compensate for transducer motion. A reference point, typically located in a region of interest, is selected. An ultrasound probe is positioned at a selected probe position and orientation relative to the region of interest. The region of interest is ultrasonically scanned, and echo signals representative of ultrasound echoes received from the region of interest are generated. The echo signals are referenced to the probe position and orientation. The probe position and orientation relative to the reference point are determined, typically by a sensing device. The echo signals and the probe position and orientation are transformed to image signals for display. The process is repeated for different probe positions and orientations to obtain a plurality of images. Each of the images is referenced to the selected reference point as the probe position and orientation changes, thereby compensating for transducer motion.
摘要翻译： 用于超声成像的方法和装置利用以组织为中心的扫描转换来补偿换能器运动。 选择通常位于感兴趣区域中的参考点。 超声波探针位于相对于感兴趣区域的选定的探针位置和取向。 对感兴趣区域进行超声波扫描，生成表示从感兴趣区域接收到的超声回波的回波信号。 回波信号参考探头的位置和方向。 通常通过感测装置来确定相对于参考点的探针位置和取向。 将回波信号和探头位置和方位转换为图像信号进行显示。 对于不同的探针位置和取向重复该过程以获得多个图像。 当探头位置和方位发生变化时，每个图像均以参考点为参考，从而补偿换能器运动。
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公开(公告)号：US4722345A
公开(公告)日：1988-02-02
申请号：US796519
申请日：1985-11-08
申请人： Shinichirou Ueno , Hiroshi Fukukita , Koetsu Saito , Tsutomu Yano
发明人： Shinichirou Ueno , Hiroshi Fukukita , Koetsu Saito , Tsutomu Yano
CPC分类号： G09G5/14 , G01S7/52063 , G01S7/52074 , G01S7/531 , A61B8/4281
摘要： In an ultrasonic imaging system echo signals representative of the amplitude of ultrasonic energy returning along a plurality of angularly spaced paths are sampled at a constant speed and stored into a buffer memory. At a speed inversely proportional to the cosine of the angle of said path with respect to a reference line the echo samples are read out of the buffer memory and written into a specified area of a graphic memory at a constant speed in the direction of the rows thereof and at a speed proportional to the tangent of the angle of the path with respect to the reference line in the direction of the columns thereof. At a constant speed echo samples are read out of the graphic memory in the directions of the rows and columns and applied to a monitor to be displayed in a raster scan field.
摘要翻译： 在超声波成像系统中，以恒定速度采样表示沿多个角度间隔路径返回的超声波能量的振幅的回波信号并存储到缓冲存储器中。 以与所述路径的角度相对于参考线的余弦成反比的速度，将回波样本从缓冲存储器中读出，并以恒定的速度在行的方向上写入图形存储器的指定区域 并且以与其相对于基准线在其方向上的路径的角度的切线成正比的速度。 在恒定速度下，回波样本从行和列的方向读出图形存储器，并应用于要在光栅扫描场中显示的监视器。
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