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    • 3. 发明授权
    • Vehicle occupancy detection via single band infrared imaging
    • 通过单频带红外成像检测车辆
    • US08811664B2
    • 2014-08-19
    • US13312414
    • 2011-12-06
    • Edul N. DalalPeter PaulLalit Keshav MesthaAbu Saeed Islam
    • Edul N. DalalPeter PaulLalit Keshav MesthaAbu Saeed Islam
    • G06K9/00G06K9/46
    • G06K9/00362G06K9/2018H04N5/33
    • What is disclosed is a method for vehicle occupancy detection using a single band infrared imaging system. First, an infrared image of a vehicle intended to be processed for human occupancy detection is captured using a single band infrared camera set to a predefined wavelength band. A candidate sub-image is identified within the captured image. A cumulative histogram is formed using the reflectance values of each pixel in the candidate region. A threshold reflectance value is then determined from the cumulative histogram using a pre-defined cumulative occurrence fraction value which corresponds to a value equivalent to an average sized human face. Embodiments for setting the threshold reflectance value are disclosed. Thereafter, human occupants can be distinguished in the image from the vehicle's interior by comparing pixel reflectances in the sub-image against the threshold reflectance value.
    • 所公开的是使用单频带红外成像系统的车辆占用检测方法。 首先,使用设定为预定波长带的单频带红外线摄像机来捕捉旨在进行人身携带检测的车辆的红外图像。 在拍摄图像内识别候选子图像。 使用候选区域中的每个像素的反射率值形成累积直方图。 然后使用对应于等于平均大小的人脸的值的预定义累积出现分数值,从累积直方图确定阈值反射率值。 公开了设定阈值反射率值的实施例。 此后,通过将子图像中的像素反射率与阈值反射率值进行比较,可以将图像与车辆内部区分开。
    • 6. 发明申请
    • FRONT SEAT VEHICLE OCCUPANCY DETECTION VIA SEAT PATTERN RECOGNITION
    • 通过座椅模式识别的前座椅车辆检测
    • US20130051625A1
    • 2013-02-28
    • US13215401
    • 2011-08-23
    • Zhigang FANAbu Saeed ISLAMPeter PAULBeilei XULalit Keshav MESTHA
    • Zhigang FANAbu Saeed ISLAMPeter PAULBeilei XULalit Keshav MESTHA
    • G06K9/00
    • G06K9/00234G06K9/00838G06K9/2018
    • What is disclosed is a system and method for determining whether a front seat in a motor vehicle is occupied based on seat pattern recognition. The present invention takes advantage of the observation that an unoccupied seat of a motor vehicle exhibits features which are distinguishable from an occupied seat. An unoccupied motor vehicle seat typically features long contiguous horizontal line segments and curve segments, and substantially uniform areas encompassed by these segments which are not present in an occupied seat. The present method provides a long horizontal edge test which uses location information within a defined window of the image, edge linking, softness of the edge, number of lines, line/curve fitting, and other techniques to locate horizontal edges in the image which define a seat, and a uniformity step which determines whether the area bounded by the horizontal edges is relatively uniform indicating an unoccupied seat.
    • 公开的是基于座椅图案识别来确定机动车辆中的前排座椅是否被占用的系统和方法。 本发明利用了这样的观察结果:机动车辆的空闲座椅表现出与被占用座椅不同的特征。 未占用的机动车辆座椅通常具有长的连续水平线段和曲线段,以及由这些段所包围的基本均匀的区域,其不存在于被占用的座椅中。 本方法提供了一种长的水平边缘测试,它使用图像的定义窗口内的位置信息,边缘链接,边缘柔软度,线数,线/曲线拟合以及其他技术来定位图像中的水平边缘 一个座位和一个均匀性步骤,确定由水平边缘限定的区域是否相对均匀,表示空闲的座位。
    • 7. 发明授权
    • Front seat vehicle occupancy detection via seat pattern recognition
    • 通过座椅模式识别进行前排座椅车辆占用检测
    • US08611608B2
    • 2013-12-17
    • US13215401
    • 2011-08-23
    • Zhigang FanAbu Saeed IslamPeter PaulBeilei XuLalit Keshav Mestha
    • Zhigang FanAbu Saeed IslamPeter PaulBeilei XuLalit Keshav Mestha
    • G06K9/00
    • G06K9/00234G06K9/00838G06K9/2018
    • What is disclosed is a system and method for determining whether a front seat in a motor vehicle is occupied based on seat pattern recognition. The present invention takes advantage of the observation that an unoccupied seat of a motor vehicle exhibits features which are distinguishable from an occupied seat. An unoccupied motor vehicle seat typically features long contiguous horizontal line segments and curve segments, and substantially uniform areas encompassed by these segments which are not present in an occupied seat. The present method provides a long horizontal edge test which uses location information within a defined window of the image, edge linking, softness of the edge, number of lines, line/curve fitting, and other techniques to locate horizontal edges in the image which define a seat, and a uniformity step which determines whether the area bounded by the horizontal edges is relatively uniform indicating an unoccupied seat.
    • 公开的是基于座椅图案识别来确定机动车辆中的前排座椅是否被占用的系统和方法。 本发明利用了这样的观察结果:机动车辆的空闲座椅表现出与被占用座椅不同的特征。 未占用的机动车辆座椅通常具有长的连续水平线段和曲线段,以及由这些段所包围的基本均匀的区域,其不存在于被占用的座椅中。 本方法提供了一种长的水平边缘测试,它使用图像的定义窗口内的位置信息,边缘链接,边缘柔软度,线数,线/曲线拟合以及其他技术来定位图像中的水平边缘 一个座位和一个均匀性步骤,确定由水平边缘限定的区域是否相对均匀,表示空闲的座位。
    • 9. 发明授权
    • Image alignment procedure
    • 图像校准程序
    • US08412088B2
    • 2013-04-02
    • US12486955
    • 2009-06-18
    • Abu Saeed IslamRakesh Suresh KulkarniJack Elliot
    • Abu Saeed IslamRakesh Suresh KulkarniJack Elliot
    • G03G15/00H04N1/04
    • H04N1/1061G03G15/607H04N1/10H04N2201/0422
    • This is an alignment system where precise alignment of a reproducible image is obtained with respect to the paper. An imaged paper to be reproduced is placed on a light table having a right angle fitting or marking. The paper is placed on top of the light table and is aligned with this right angle marking. A transparent platen with marked scales is placed over the imaged paper and also aligned with the right angle fitting. The scales are placed over the corners of the image and image corner location readings are taken from the scales. These readings are then entered and fixed into a marking system such as an electrophotographic printer for reproduction of copies from the aligned and fixed original image.
    • 这是一种对准系统,其中可以相对于纸张获得可再现图像的精确对准。 要再现的成像纸被放置在具有直角配件或标记的光台上。 将纸张放置在光台的顶部,并与该直角标记对齐。 将具有标记的标尺的透明压板放置在成像纸上并且还与直角配件对准。 刻度放置在图像的角落上,并且图像的角位置读数取自标尺。 然后将这些读数输入并固定到诸如电子照相打印机的标记系统中,以从对准和固定的原始图像中再现复印件。