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    • 2. 发明申请
    • Face detection and tracking
    • 人脸检测和跟踪
    • US20060104487A1
    • 2006-05-18
    • US10536620
    • 2003-11-28
    • Robert PorterRatna RambaruthSimon HaynesJonathan Living
    • Robert PorterRatna RambaruthSimon HaynesJonathan Living
    • G06K9/00
    • G06K9/00228H04N7/147H04N7/15
    • A face detection apparatus for tracking a detected face between images in a video sequence comprises: a first face detector for detecting the presence of face(s) in the images; a second face detector for detecting the presence of face(s) in the images; the first face detector having a higher detection threshold than the second face detector, so that the second face detector is more likely to detect a face in an region in which the first face detector has not detected a face; and a face position predictor for predicting a face position in a next image in a test order of the video sequence on the basis of a detected face position in one or more previous images in the test order of the video sequence; in which: if the first face detector detects a face within a predetermined threshold image distance of the predicted face position, the face position predictor uses the detected position to produce a next position prediction; if the first face detector fails to detect a face within a predetermined threshold image distance of the predicted face position, the face position predictor uses a face position detected by the second face detector to produce a next position prediction.
    • 一种用于跟踪视频序列中的图像之间的检测到的面部的面部检测装置,包括:第一面部检测器,用于检测图像中面部的存在; 第二面部检测器,用于检测图像中面部的存在; 所述第一面部检测器具有比所述第二面部检测器更高的检测阈值,使得所述第二面部检测器更可能检测到所述第一面部检测器未检测到面部的区域中的面部; 以及面部位置预测器,用于基于视频序列的测试顺序中的一个或多个先前图像中的检测到的脸部位置,以视频序列的测试顺序来预测下一图像中的脸部位置; 其中:如果第一面部检测器检测到预测面部位置的预定阈值图像距离内的面部,则脸部位置预测器使用检测到的位置来产生下一个位置预测; 如果第一面部检测器不能在预测的脸部位置的预定阈值图像距离内检测到面部,则脸部位置预测器使用由第二面部检测器检测到的面部位置来产生下一个位置预测。
    • 8. 发明申请
    • Object detection
    • 对象检测
    • US20050265581A1
    • 2005-12-01
    • US11138136
    • 2005-05-26
    • Robert PorterRatna RambaruthSimon HaynesJonathan LivingClive Gillard
    • Robert PorterRatna RambaruthSimon HaynesJonathan LivingClive Gillard
    • G06K9/00G06T7/20H04N7/08
    • G06K9/00295
    • Video data processing apparatus, the video data comprising a sequence of images comprises: an object tracker operable to detect the presence of one or more objects within an image and to track a detected object across successive images; an identity associator operable to associate an identity with an object tracked by the object tracker; a counter operable, for a first and second identity, to count the number of images within which a tracked object associated with the first identity and a tracked object associated with the second identity have both been detected; and a similarity detector operable to determine whether two tracked objects are similar in appearance; the identity associator being operable to change the identity associated with a first tracked object to the identity associated with a second tracked object if: (a) the similarity detector determines that the first and second tracked objects are similar in appearance and (b) the count corresponding to the identities associated with the first and second tracked objects, as counted by the counter, is less than a predetermined threshold.
    • 视频数据处理装置,包括一系列图像的视频数据包括:对象跟踪器,其可操作以检测图像内的一个或多个对象的存在并且跨连续图像跟踪检测到的对象; 身份关联器,其可操作以将身份与由对象跟踪器跟踪的对象相关联; 用于第一和第二身份的计数器可以计数图像的数量,其中与第一身份相关联的跟踪对象和与第二身份相关联的被跟踪对象都被检测到; 以及相似度检测器,用于确定两个跟踪对象在外观上是否相似; 如果:(a)相似性检测器确定第一和第二跟踪对象的外观相似,并且(b)计数,则身份关联器可操作以将与第一被跟踪对象相关联的身份改变为与第二被跟踪对象相关联的身份 对应于由计数器计数的与第一和第二跟踪对象相关联的身份小于预定阈值。
    • 10. 发明申请
    • Object detection
    • 对象检测
    • US20050129275A1
    • 2005-06-16
    • US11007110
    • 2004-12-08
    • Robert PorterJonathan LivingSimon Haynes
    • Robert PorterJonathan LivingSimon Haynes
    • G06T7/00G06K9/00
    • G06K9/00228
    • Image object detection apparatus in which test regions of a test image are compared with an image property model, a mask defining a subset of pixel positions within a test region, comprises means for comparing pixel properties in the test image defined by the test regions with the image property model to detect a property difference between the image property model and a test region; so that pixel property differences within the mask and pixel property differences outside the mask are combined with opposite respective polarities to form a difference value in respect of that test region, an object being detected in the test image at a test region corresponding to a lowest difference value between the image property model and pixels defined by the test region.
    • 将测试图像的测试区域与图像属性模型进行比较的图像对象检测设备,定义测试区域内的像素位置子集的掩模,包括用于将由测试区域定义的测试图像中的像素属性与 图像属性模型,用于检测图像属性模型和测试区域之间的属性差异; 使得掩模之外的掩模和像素特性差异中的像素特性差异与相对的相应极性组合以形成关于该测试区域的差值,在与最低差对应的测试区域的测试图像中检测到的对象 图像属性模型与由测试区域定义的像素之间的值。