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    • 4. 发明授权
    • Tracking apparatus for tracking image in local region
    • 用于跟踪本地区域图像的设备
    • US5838365A
    • 1998-11-17
    • US521076
    • 1995-08-29
    • Naoyuki SawasakiMasahiko Sato
    • Naoyuki SawasakiMasahiko Sato
    • G06T1/60G06F17/15G06T7/20G01S7/00
    • G06T7/202G06F17/153G06T7/204G06T2207/10016
    • A local region image tracking apparatus continuously tracks an arbitrary local region within a search image that is described by search image data by comparing the search image data to be subjected to a tracking process out of input image data picked up by image pickup means with reference image data related to the arbitrary local region. The local region image tracking apparatus includes an image data bus transferring the input image data from the image pickup means, and a plurality of correlation tracking processors coupled in parallel to the image data bus and respectively capable of independently carrying out the tracking process with respect to at least one search image, where the tracking process with respect to one or a plurality of search images is distributively carried out by the correlation tracking processors.
    • 局部区域图像跟踪装置通过将由图像拾取装置拾取的输入图像数据与参考图像进行比较来跟踪处理的搜索图像数据,连续地跟踪由搜索图像数据描述的搜索图像内的任意局部区域 与任意本地区域相关的数据。 本地区域图像跟踪装置包括从图像拾取装置传送输入图像数据的图像数据总线和与图像数据总线并联耦合的多个相关跟踪处理器,并且分别能够相对于图像数据总线独立地执行跟踪处理 至少一个搜索图像,其中关于一个或多个搜索图像的跟踪处理由相关跟踪处理器分发执行。
    • 6. 发明申请
    • Mobile robot, and control method and program for the same
    • 移动机器人,以及控制方法和程序相同
    • US20070276541A1
    • 2007-11-29
    • US11512338
    • 2006-08-30
    • Naoyuki Sawasaki
    • Naoyuki Sawasaki
    • G06F19/00
    • G05D1/0246G05D1/0272
    • A path planning unit plans a travel path to a destination based on an estimated current travel position and outputs a travel command to a travel control unit to perform travel control so as to follow the travel path. A travel position prediction unit accumulates a travel distance, which is detected by a wheel turning-angle sensor, to the estimated current travel position so as to predict the current travel position. A predictive image generating unit generates a plurality of predictive edge images which are composed of edge information and captured when a camera is virtually disposed at the predicted current travel position and candidate positions in the vicinity of it based on layout information of the environment, and an edge image generating unit generates an actual edge image from the actual image captured by the camera. A position estimation unit compares the edge image with the plurality of predictive edge images, estimates the candidate position of the predictive edge image at which the degree of similarity is the maximum, and updates the travel position of the path planning unit and the travel position prediction unit.
    • 路径规划单元基于估计的当前行驶位置来计划到目的地的行驶路径,并且向行驶控制单元输出行驶命令,以执行行驶控制,以跟随行驶路径。 行驶位置预测单元将由车轮转角传感器检测出的行驶距离累积到所述估计的当前行驶位置,以预测当前行驶位置。 预测图像生成单元生成由边缘信息构成的多个预测边缘图像,并且在摄像机基于环境的布局信息虚拟地设置在预测的当前行驶位置和其附近的候选位置时捕获的预测边缘图像, 边缘图像生成单元从由相机拍摄的实际图像生成实际边缘图像。 位置估计单元将边缘图像与多个预测边缘图像进行比较,估计相似度最大的预测边缘图像的候选位置,并更新路径规划单元的行进位置和行驶位置预测 单元。
    • 9. 发明授权
    • Image tracking apparatus for tracking an image within a local region to continuously track a moving object
    • 用于跟踪局部区域内的图像以连续跟踪移动物体的图像跟踪装置
    • US06298170B1
    • 2001-10-02
    • US08783056
    • 1997-01-14
    • Toshihiko MoritaNaoyuki Sawasaki
    • Toshihiko MoritaNaoyuki Sawasaki
    • G06K15316
    • G06T7/20G06T7/74
    • A local region image tracking apparatus continuously tracks an arbitrary local region within a search image which is described by search image data by comparing the search image data and reference image data related to the arbitrary local region having a size of am pixels by bn pixels with respect to input image data, where the search image has a size larger than am pixels by bn pixels, and a, b, m and n are natural numbers. The local region image tracking apparatus includes correlation computing circuit for computing a correlation between reference image data related to a reference image having a size of m pixels by n pixels and the search image data a plurality of times while moving a position of the reference image with respect to the search image, and for outputting correlation values respectively indicating a computed correlation, and a correlation value accumulating circuit for accumulating the correlation values output from the correlation computing circuit, and for outputting a correlation value indicative of a correlation between the search image data and reference image data related to an equivalent of a reference image having a size of am pixels by bn pixels.
    • 局部区域图像跟踪装置通过将搜索图像数据和与具有am像素×bn个像素的大小的任意局部区域相关的搜索图像数据和参考图像数据与搜索图像数据所描述的搜索图像内的任意局部区域连续地跟踪相对于 以输入图像数据,其中搜索图像的尺寸大于am像素乘以bn像素,并且a,b,m和n是自然数。 本地区域图像跟踪装置包括:相关计算电路,用于在将参考图像的位置移动到参考图像的位置的同时,计算与具有m个像素×像素大小的参考图像相关的参考图像数据与多个搜索图像数据之间的相关性; 并且用于输出分别表示计算出的相关性的相关值,以及相关值累积电路,用于累积从相关运算电路输出的相关值,并输出表示搜索图像数据之间的相关性的相关值 以及与具有am像素乘以bn像素的尺寸的参考图像的等价物相关的参考图像数据。
    • 10. 发明授权
    • System for and method of recognizing and tracking target mark
    • 识别和跟踪目标标记的系统和方法
    • US5521843A
    • 1996-05-28
    • US119228
    • 1993-09-28
    • Masayoshi HashimaFumi HasegawaKeiju OkabayashiIchiro WatanabeShinji KandaNaoyuki SawasakiYuichi Murase
    • Masayoshi HashimaFumi HasegawaKeiju OkabayashiIchiro WatanabeShinji KandaNaoyuki SawasakiYuichi Murase
    • B25J9/16G01S3/786G01S5/16G05D1/02G06K9/46G06T7/20G01S15/06
    • G06K9/4647B25J9/1697B64G1/646G01S3/7864G01S5/163G06K9/3216G06T7/2033G05B2219/39387G05B2219/39397G05B2219/40613G06K2009/3225
    • A system for and a method of recognizing and tracking a target mark with a video camera is disclosed. The system includes a target mark (10) disposed on an object (1) and composed of a black circle and a white triangle mounted centrally on the black circle and three-dimensionally shifted from the black circle, a video camera (20) for imaging the target mark (10), a robot (30) supporting the video camera (20) and movable in directions with six degrees of freedom, an image processor (40) for processing image data of the target mark which is produced by the video camera (20), a shift calculating unit (50) for detecting a shift of the target mark (10) from projected histogram information of the target mark (10) which is produced by the image processor (40), and a robot controller (60) for controlling movement of the robot depending on the shift to enable the video camera (20) to track the target mark (10). The system is capable of tracking the target mark ( 20) attached to the object (1) on a real-time basis. Mark recognizing apparatus capable of accurately recognizing target marks of other shapes is also disclosed.
    • PCT No.PCT / JP93 / 00107 Sec。 371日期:1993年9月28日 102(e)日期1993年9月28日PCT 1993年1月29日PCT公布。 第WO93 / 15376号公报 日期:1993年8月5日。公开了一种使用摄像机识别和跟踪目标标记的系统和方法。 该系统包括设置在物体(1)上并由黑色圆圈和白色三角形组成的目标标记(10),其安装在黑色圆圈的中心并从黑色圆圈三维位移,用于成像的摄像机(20) 所述目标标记(10),支持所述摄像机(20)并且能够以六自由度的方向移动的机器人(30),用于处理由所述摄像机产生的所述目标标记的图像数据的图像处理器 (20),用于根据由图像处理器(40)产生的目标标记(10)的投影直方图信息和机器人控制器(60)检测目标标记(10)的偏移的移位计算单元(50) ),用于根据移动来控制机器人的运动,以使得摄像机(20)能够跟踪目标标记(10)。 该系统能够实时跟踪附接到对象(1)的目标标记(20)。 还公开了能够准确地识别其他形状的目标标记的标记识别装置。