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    • 5. 发明申请
    • VIDEO IMAGE CAPTURING AND DISPLAYING METHOD AND RELATED SYSTEM FOR A WEB CAMERA
    • 网络摄像机的视频图像捕获和显示方法及相关系统
    • US20060115165A1
    • 2006-06-01
    • US10904793
    • 2004-11-29
    • Tzu-Yi ChaoChih-Hung LuChuan-Hsin Lee
    • Tzu-Yi ChaoChih-Hung LuChuan-Hsin Lee
    • G06K9/36
    • H04N19/587H04N19/132
    • A video image capturing and displaying method for a web camera is disclosed. The method includes the steps of: capturing a video image consisting of a time series of image frames, at an adaptive frame rate, each image frame comprising a plurality of sequential lines of pixels; compressing the captured video image with one of at least a first compressing mode and a second compressing mode; decompressing the compressed video image corresponding to the compressing mode; storing, in a buffer, the decompressed video image which is not displayed in time; and displaying the video image based on the stored video image and the decompressed video image, wherein the adaptive frame rate in the capturing step is determined according to the display quality of the video image being displayed in the displaying step.
    • 公开了一种用于网络摄像机的视频图像捕获和显示方法。 该方法包括以下步骤:以自适应帧速率捕获由时间序列的图像帧构成的视频图像,每个图像帧包括多个连续的像素行; 使用至少第一压缩模式和第二压缩模式之一压缩所捕获的视频图像; 解压缩与压缩模式对应的压缩视频图像; 在缓冲器中存储未及时显示的解压缩视频图像; 以及基于所存储的视频图像和解压缩视频图像来显示视频图像,其中根据在显示步骤中显示的视频图像的显示质量来确定拍摄步骤中的自适应帧速率。
    • 7. 发明授权
    • Displacement estimation device and method for the same
    • 位移估计装置及方法相同
    • US08194743B2
    • 2012-06-05
    • US11477109
    • 2006-06-28
    • Hsin-Chia ChenYi-Fang LeeTzu-Yi Chao
    • Hsin-Chia ChenYi-Fang LeeTzu-Yi Chao
    • H04N7/12H04N11/02H04N11/04
    • G06F3/0317G06K9/6202H04N5/145
    • A displacement estimation device includes a vector calculator and a displacement calculator, for use in estimating a displacement vector from a pattern in a first original image to a pattern in a second original image. The vector calculator calculates a parameter for each pixel in the first original image and the second original image. The parameter of a pixel integrates the information of the intensities of all the pixels in a region of interest (ROI) surrounding the pixel, and the relative distances from all the pixels in the ROI to the pixel. The displacement calculator calculates the displacement vector from a pattern in the first original image to a pattern in the second original image based on the parameters calculated by the vector calculator for the first original image and the second original image.
    • 位移估计装置包括矢量计算器和位移计算器,用于估计从第一原始图像中的图案到第二原始图像中的图案的位移矢量。 矢量计算器计算第一原始图像和第二原始图像中的每个像素的参数。 像素的参数将像素周围的感兴趣区域(ROI)中的所有像素的强度的信息以及从ROI中的所有像素到像素的相对距离进行积分。 位移计算器基于由第一原始图像和第二原始图像的矢量计算器计算出的参数,计算从第一原始图像中的图案到第二原始图像中的图案的位移矢量。