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    • 3. 发明授权
    • Methods, systems and apparatuses for motion detection using auto-focus statistics
    • 使用自动对焦统计的运动检测的方法,系统和装置
    • US08233094B2
    • 2012-07-31
    • US11802728
    • 2007-05-24
    • Igor SubbotinAlexander Mokhnatyuk
    • Igor SubbotinAlexander Mokhnatyuk
    • H04N5/14
    • H04N5/23248H04N5/23254
    • Methods, systems and apparatuses for the detection of motion using statistics data already available within an imager, such as sharpness scores or brightness values. The method includes obtaining at least two sets of statistics data for respective image frames which include corresponding windows; initializing a motion counter; determining, for each window, a relative difference value for the particular window; comparing the relative difference value to a first threshold. If the relative difference value is greater than the first threshold, the method increments the motion counter; and determines if there is motion by comparing the value of the motion counter to a second threshold. The motion detection may further take into account the relative importance of certain areas of the image frame.
    • 用于使用在成像器内已经可用的统计数据的检测运动的方法,系统和装置,例如锐度分数或亮度值。 该方法包括获得包括相应窗口的各个图像帧的至少两组统计数据; 初始化运动计数器; 为每个窗口确定特定窗口的相对差值; 将相对差值与第一阈值进行比较。 如果相对差值大于第一阈值,则该方法增加运动计数器; 并且通过将运动计数器的值与第二阈值进行比较来确定是否存在运动。 运动检测还可以考虑图像帧的某些区域的相对重要性。
    • 9. 发明授权
    • Method and system for synchronizing a flash to an imager
    • 用于将闪光灯同步到成像器的方法和系统
    • US08994877B2
    • 2015-03-31
    • US12182375
    • 2008-07-30
    • Alexander Mokhnatyuk
    • Alexander Mokhnatyuk
    • H04N5/222H04N5/262H04N5/353H04N5/232H04N5/235
    • H04N5/3532H04N5/23296H04N5/2354H04N5/2628
    • A digital camera system synchronizes a flash to an array of image sensing elements. The array of image sensing elements senses an image focused on the array by a lens. The system includes an array controller that implements an electronic rolling shutter to capture the image as a frame. The electronic rolling shutter includes read and reset pointers that the array controller scans through the array to capture integrated photo charges on the image sensing elements to generate the frame. The number of lines between the reset and read pointers defines the integration time of the imager. The system also includes a flash controller that synchronizes the flash to a portion of the frame. When the flash is activated, the camera system reduces the integration time and synchronizes the flash to the scanning of a selected portion of the array.
    • 数码相机系统将闪光灯与摄像元件阵列同步。 图像感测元件的阵列通过透镜感测聚焦在阵列上的图像。 该系统包括阵列控制器,该阵列控制器实现电子滚动快门以将图像捕获为帧。 电子滚动快门包括读取和重置指针,阵列控制器通过阵列扫描以捕获图像感测元件上的集成光电荷以产生该帧。 复位和读取指针之间的行数定义了成像器的积分时间。 该系统还包括闪光灯控制器,其将闪光灯与该帧的一部分同步。 当闪光灯被激活时,照相机系统减少积分时间,并将闪光灯与扫描阵列的选定部分进行同步。