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    • 7. 发明授权
    • Method of volume-panorama imaging processing
    • 体积全景成像处理方法
    • US07565019B2
    • 2009-07-21
    • US11316440
    • 2005-12-22
    • Jian DongDong NiBin Yao
    • Jian DongDong NiBin Yao
    • G06K9/36
    • G06K9/32G06K2009/2045G06T7/238G06T7/32G06T7/33G06T2207/10132G06T2207/20021G06T2207/30004
    • The present invention discloses a method of volume-panorama imaging processing, which generates a volume-panorama image by subsequently splicing respective image frames from an image sequence obtained in a real-time way or stored in a medium based upon the fact that the immediately adjacent image frames have the largest correlation. The method comprises the steps of: reading the image sequence, and firstly initializing an aligned image and a spliced image; dividing the i-th image frame Fi into a plurality of sub-regions; calculating a motion vector of the i-t image frame with respect to the aligned image; fitting the motion vector to calculate a transform coefficient; splicing the Fi to the current spliced image based upon the transform coefficient, and updating the aligned image; entering into a self-adaptive selection of a next image frame until the end of the splicing; and outputting the current spliced image as a resultant image. Additionally, when the image Fi is spliced, double-filtering architecture of selecting characteristic points through a filtering and selecting the valid motion vector of the selected characteristic points through the other filtering to reduce an alignment error may be adopted. According to the present invention, the volume-panorama imaging can be done quickly and accurately so that the reliability of images particularly meets a very high requirement of the ultrasonic iatric diagnose.
    • 本发明公开了一种体积全景成像处理的方法,其通过随后从实时方式获得的图像序列中拼接各个图像帧或存储在介质中来生成体积全景图像,其基于紧邻的 图像帧具有最大的相关性。 该方法包括以下步骤:读取图像序列,首先初始化对准的图像和拼接图像; 将第i图像帧F i划分成多个子区域; 计算i-t图像帧相对于对准图像的运动矢量; 拟合运动矢量以计算变换系数; 基于变换系数将Fi拼接到当前拼接图像,并更新对准的图像; 进入下一个图像帧的自适应选择直到拼接结束; 并输出当前拼接图像作为合成图像。 此外,当图像Fi被拼接时,可以采用通过滤波选择特征点的双重滤波架构,并且通过另一滤波选择所选特征点的有效运动矢量以减少对准误差。 根据本发明,可以快速准确地进行体积全景成像,使得图像的可靠性特别满足超声波诊断的非常高的要求。