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    • 72. 发明申请
    • Outline detection apparatus, outline detection method, and program thereof
    • 轮廓检测装置,轮廓检测方法及程序
    • US20080232662A1
    • 2008-09-25
    • US12075781
    • 2008-03-12
    • Yasuhiro Komiya
    • Yasuhiro Komiya
    • G06K9/00
    • G06K9/4604A61C5/70A61C9/004A61C13/0004G06T7/11G06T2207/30036
    • An outline detection apparatus which detects an outline of a tooth in a dental image, including: a rectangular range specification device for estimating portions in the dental image as a tooth, gum, and background respectively, and specifying rectangular ranges with predetermined pixels in the positions estimated as the tooth, gum, and background; and a site estimation device for acquiring a characteristic quantity based on color information of the pixels in the rectangular ranges, finding a classification vector which maximizes the Fischer ratio based on the characteristic quantity, and estimating which of the tooth range, the gum range, and the background range, pixels other than the pixels in the rectangular ranges are positioned in according to comparison between a predetermined threshold value and an inner product between the classification vector and a pixel value vector based on color information on pixels other than the pixels in the rectangular ranges.
    • 一种轮廓检测装置,其检测牙齿图像中的牙齿的轮廓,包括:用于分别估计作为牙齿,牙龈和背景的牙齿图像中的部分的矩形范围指定装置,并且在位置中指定具有预定像素的矩形范围 估计为牙齿,牙龈和背景; 以及位置估计装置,用于基于矩形范围中的像素的颜色信息获取特征量,找到基于特征量使费雪比最大化的分类矢量,并估计齿数,牙龈范围和 根据矩形范围内的像素之外的像素,基于矩形范围内的像素的颜色信息,根据预定阈值和分类矢量与像素值向量之间的内积的比较来定位背景范围 范围。
    • 80. 发明申请
    • Image processing system
    • 图像处理系统
    • US20050254704A1
    • 2005-11-17
    • US10521778
    • 2003-07-24
    • Yasuhiro KomiyaToru WadaOsamu KonnoTakeyuki AjitoTomoyuki Nakamura
    • Yasuhiro KomiyaToru WadaOsamu KonnoTakeyuki AjitoTomoyuki Nakamura
    • H04N5/225H04N5/232H04N9/04G06K9/00
    • H04N5/23245H04N5/2256H04N5/23293H04N5/345H04N9/045
    • An image processing system includes a photographing apparatus (1) and a processing apparatus (2). The photographing apparatus (1) includes six LEDs (6a to 6f) for emitting light with characteristics of spectroscopic distributions varied in a visible light area, a monochrome-type CCD (8) which picks-up a subject image that is illuminated by the LEDs (6a to 6f) and is formed by an image pick-up optical system (7) and which outputs an image signal, and a CPU (18) which sequentially lights-on the LEDs (6a to 6f) upon an instruction for photographing a subject spectroscopic image being input from an operating switch (14), picks-up the image by the CCD (8), and thus controls the operation for capturing 6-primary-color subject spectroscopic images. The processing apparatus (2) includes a calculating device (21) which captures the 6-primary-color subject spectroscopic images photographed by the photographing apparatus (1) to create a display signal for color reproduction at the high fidelity level, and a display (22) which displays the display signal created by the calculating device (21).
    • 一种图像处理系统包括拍摄装置(1)和处理装置(2)。 拍摄装置(1)包括用于发射具有在可见光区域中变化的光谱分布特性的光的六个LED(6a至6f),拾取由可见光区域照射的被摄体图像的单色CCD(8) LED(6a至6f)并由图像拾取光学系统(7)形成并输出图像信号;以及CPU(18),其依次点亮LED(6a至6f) 在从操作开关(14)输入的用于拍摄被摄体分光图像的指示时,通过CCD(8)拾取图像,从而控制用于捕获6个原色对象的分光图像的操作。 处理装置(2)包括计算装置(21),其捕获由摄影装置(1)拍摄的6原色对象分光图像,以创建用于在高保真级别进行色彩再现的显示信号,以及显示( 22),其显示由计算装置(21)创建的显示信号。