Circuit arrangement for recognizing a human face
    1.
    发明授权
    Circuit arrangement for recognizing a human face 失效
    用于识别人脸的电路布置

    公开(公告)号:US5570434A

    公开(公告)日:1996-10-29

    申请号:US202843

    申请日:1994-02-25

    申请人: Eric Badique

    发明人: Eric Badique

    摘要: A circuit for recognizing a human face in a sequence of video is provided. The circuit includes a block structuring circuit in which the video is structured block-wise and wherein two consecutive frames are subtracted from one another. The circuit also includes a unit for block-wise post-processing the difference frames. The post-processing unit includes a comparator for determining the areas of the difference picture which may correspond to a moving object, a mapping unit for forming a status picture by mapping each block of the difference picture which corresponds to a moving object onto a binary "one", all other blocks being mapped to a binary "zero".The status picture is transformed by a transforming unit into a unidimensional feature function. The unidimensional feature function is then fed to a convolution unit to determine whether the feature function could include a "head-shoulder" scene. If so a plurality of marking units, mark all points of the status picture located within a predetermined rectangle in which the "face" may be present. Each picture element within the predetermined area is then refined.

    摘要翻译: 提供了用于识别视频序列中的人脸的电路。 该电路包括块结构电路,其中视频被分段结构化,并且其中两个连续的帧被相互减去。 该电路还包括用于对差分帧进行逐块后处理的单元。 后处理单元包括:比较器,用于确定可对应于移动物体的差分图像的区域;映射单元,用于通过将对应于移动物体的差分图像的每个块映射到二进制“ 一个“,所有其他块被映射到二进制”零“。 状态图像由变换单元转换为一维特征函数。 然后,一维特征函数被馈送到卷积单元以确定特征函数是否可以包括“头肩”场景。 如果是多个标记单元,则标记位于可能存在“面”的预定矩形内的状态画面的所有点。 然后对预定区域内的每个像素进行精炼。

    Method of processing endoscopic images
    2.
    发明授权
    Method of processing endoscopic images 失效
    内窥镜图像处理方法

    公开(公告)号:US4895431A

    公开(公告)日:1990-01-23

    申请号:US119784

    申请日:1987-11-10

    摘要: A method of processing images taken by an endoscope having insertion section, bending section and operation section including a step of entering a first image of an object taken by the endoscope having the bending section situated in a first position, a step of entering a second image taken by the endoscope having the bending section situated in a second position, after moving the bending section into the second position by operating an operation member, the first image being partially overlapped with the second image, a step of detecting a positional relation between the first and second positions by detecting the movement of the bending section, a step of deriving a distance between corresponding points on the first and second images, a step of deriving three dimensional information of the object, and a step of displaying a three dimensional image of the object in accordance with the three dimensional information.

    摘要翻译: 一种处理由内窥镜拍摄的图像的方法,所述内窥镜具有插入部分,弯曲部分和操作部分,所述内窥镜具有输入由具有位于第一位置的所述弯曲部分的内窥镜拍摄的物体的第一图像的步骤,输入第二图像的步​​骤 所述内窥镜具有位于第二位置的所述内窥镜,在通过操作操作构件将所述弯曲部移动到所述第二位置之后,所述第一图像与所述第二图像部分地重叠;检测所述第一图像的位置关系的步骤 通过检测弯曲部的移动而得到第二位置,导出第一和第二图像上的对应点之间的距离的步骤,导出对象的三维信息的步骤,以及显示对象的三维图像的步骤 对象按照三维信息。

    Monitoring system
    3.
    发明授权
    Monitoring system 失效
    监视系统

    公开(公告)号:US6167143A

    公开(公告)日:2000-12-26

    申请号:US644939

    申请日:1996-05-13

    申请人: Eric Badique

    发明人: Eric Badique

    IPC分类号: G06T7/20 G08B13/194

    摘要: A monitoring system includes at least one camera (1) for generating a sequence of video images, and a control circuit (2). The control circuit (2) is provided for forming a difference image of two block-structured, consecutive video images and for generating status bits allocated to a stationary or a moving object for each block of a difference image. The control circuit (2) is further used for characterizing, by means of an area mark, contiguous status bits constituting an area and allocated to a moving object for determining an area parameter from the status bits of an area and for triggering an alarm when a predetermined condition of one or more area parameters is reached.

    摘要翻译: 监视系统包括用于产生视频图像序列的至少一个照相机(1)和控制电路(2)。 控制电路(2)被提供用于形成两个块结构的连续视频图像的差分图像,并且用于产生分配给差分图像的每个块的静止或移动对象的状态位。 控制电路(2)还用于通过区域标记来表征构成区域的连续状态位,并且分配给移动对象,用于根据区域的状态位确定区域参数,并且用于当 达到一个或多个面积参数的预定条件。

    Correlation operational apparatus for multi-dimensional images
    4.
    发明授权
    Correlation operational apparatus for multi-dimensional images 失效
    多维图像相关运算装置

    公开(公告)号:US4998286A

    公开(公告)日:1991-03-05

    申请号:US146162

    申请日:1988-01-20

    IPC分类号: G06F17/15 G06K9/64

    CPC分类号: G06K9/6202 G06F17/153

    摘要: A correlation operational apparatus for multi-dimensional images includes: means for reducing at least two-dimensional components of the multi-dimensional images composed of at least two components by at least one component by projecting a vector representing the image onto a space perpendicular to a vector representing a large variance of distribution of the multi-dimensional image in a vector space whose orthogonal axes represent the individual dimensional component values of the multi-dimensional image; and means for performing a correlation operation for each component on the multi-dimensional images whose dimensional components have been reduced by at least one. In consequence, images having a relatively high number of high spatial frequency components and whose components have been reduced by at least one are extracted, and a correlation operation is performed thereon.

    摘要翻译: 用于多维图像的相关运算装置包括:用于通过将表示图像的向量投影到垂直于...的空间的至少一个分量来减少由至少两个分量组成的多维图像的至少二维分量的装置 表示在其正交轴表示多维图像的各维度分量值的向量空间中的多维图像的分布的大变化的矢量; 以及用于对其尺寸分量已经减少至少一个的多维图像上的每个分量执行相关运算的装置。 因此,提取具有相对高数量的高空间频率分量并且其分量已被减少至少一个的图像,并且在其上执行相关操作。

    Method and apparatus for detecting corresponding regions between picture
images
    5.
    发明授权
    Method and apparatus for detecting corresponding regions between picture images 失效
    用于检测图像图像之间相应区域的方法和装置

    公开(公告)号:US4962540A

    公开(公告)日:1990-10-09

    申请号:US453382

    申请日:1989-11-27

    IPC分类号: G06T7/00 G06T5/50

    CPC分类号: G06T5/50

    摘要: The method of detecting corresponding regions between primary color picture images comprises respective steps of converting three primary color signals of color picture images to at least two signals based on these three primary color signals, calculating the variance of the mutual concentration distribution in the operation object regions of the three primary color picture images from these converted signals and detecting the set of regions in which the calculated variance value is minimum. The apparatus for realizing the above mentioned method comprises a converting device for converting three primary color picture signals of color picture images to at least two signals based on these three primary color signals, a variance calculating device for calculating the variance of the mutual concentration distribution in the operation object regions of the three primary color picture images from the signals converted by this converting device and a corresponding region detecting device for detecting the set of regions in which the variance value calculated by this variance calculating device is minimum.

    摘要翻译: 检测原色图像之间的对应区域的方法包括以下步骤:基于这三个原色信号将彩色图像的三原色信号转换为至少两个信号,计算操作对象区域中的相互浓度分布的方差 的三原色图像,并且检测其中所计算的方差值最小的区域集合。 用于实现上述方法的装置包括:转换装置,用于将彩色图像的三原色图像信号转换为基于这三个原色信号的至少两个信号;方差计算装置,用于计算相互浓度分布的方差 由该转换装置转换的信号的三原色图像的操作对象区域和用于检测由该方差计算装置计算出的方差值最小的区域集合的对应区域检测装置。