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    • 2. 发明申请
    • METHOD AND APPARATUS FOR OBTAINING PANORAMIC IMAGES
    • 用于获取全景图像的方法和装置
    • US20120224762A1
    • 2012-09-06
    • US13509042
    • 2010-11-10
    • Seong-Il ChoiHyo Sung Cho
    • Seong-Il ChoiHyo Sung Cho
    • G06K9/00
    • H04N5/32A61B6/14A61B6/488A61B6/542A61B6/545H04N5/232H04N5/23238
    • The present invention provides an apparatus and a method for obtaining panoramic images in which cervical effect is corrected in such a manner that the uniform contrast is shown. According to the apparatus and the method, the method comprises the steps of: obtaining a preceding frame image by irradiating radiation on one certain section of an image layer trace on which the tooth trace of a subject is embodied; calculating a gray scale average value of pixels that are included within a predetermined reference region of the preceding frame image; comparing the calculated gray scale average value with a gray scale reference value that is calculated from a prepared sample image, and generating a radiation correction value corresponding to a difference value therebetween; and obtaining a succeeding frame image by irradiating strength-adjusted radiation on one section that is adjacent to the other section of an unknown layer trace, according to the calculated radiation correction value.
    • 本发明提供一种用于获得全景图像的装置和方法,其中以示出均匀对比度的方式校正子宫颈效果。 根据该装置和方法,该方法包括以下步骤:通过在其上体现对象的牙迹的图像层迹线的一个特定部分上照射辐射来获得前一帧图像; 计算包括在前一帧图像的预定参考区域内的像素的灰度级平均值; 将所计算的灰度平均值与从准备的样本图像计算出的灰度参考值进行比较,并产生与其之间的差值对应的辐射校正值; 并且根据所计算的辐射校正值,通过对与未知层迹线的另一部分相邻的一个部分照射强度调节的辐射来获得后续帧图像。
    • 6. 发明授权
    • Guard time reducing system in data communication from earth station to static orbit communication satellite and method thereof
    • 从地球站到静态轨道通信卫星的数据通信中的保卫时间减少系统及其方法
    • US06381226B1
    • 2002-04-30
    • US09188800
    • 1998-11-09
    • Seong Il Choi
    • Seong Il Choi
    • H04B7185
    • H04B7/2125
    • A guard time reducing system and a method thereof for realizing a guard time that each packet is near each other in time without overlapping each other. A GPS timing unit finds the propagation passed time from a static orbit communication satellite to an earth station and a packetizing unit transmits a packet as fast as the propagation passed time than the UTC time when the packetizing unit transmits the packet to the static orbit communication satellite. According to the method, it is possible to maximize the use efficiency of the communication channel from the earth station to the static orbit communication satellite because respective earth station transmits data in each time period allocated thereto without overlapping each time period.
    • 一种保护时间减少系统及其方法,用于实现每个分组在时间上彼此接近而彼此不重叠的保护时间。 GPS定时单元从静态轨道通信卫星到地球站发现传播时间的传播,并且分组单元发送与传播分组到静态轨道通信卫星的UTC时间相比传播时间快的分组 。 根据该方法,由于各地球站在分配给其的每个时间段中发送数据而不重叠每个时间段,所以可以使从地球站到静态轨道通信卫星的通信信道的使用效率最大化。