System and method for detecting motion in compressed video
    11.
    发明授权
    System and method for detecting motion in compressed video 有权
    用于检测压缩视频中运动的系统和方法

    公开(公告)号:US09053366B2

    公开(公告)日:2015-06-09

    申请号:US13772012

    申请日:2013-02-20

    Abstract: A method and apparatus wherein the method includes the steps of parsing a stream of compressed video, obtaining macroblock size information from the parsed stream, computing factors derived from the macroblock size, wherein the factors include a normalized bit size, a bit size ratio and a neighbor score, computing corresponding adaptive threshold values derived from the relative frame characteristics of the compressed video, comparing the factors derived from the macroblock size information with the corresponding adaptive threshold values and detecting motion based upon combinations of the comparisons when the factors exceed the threshold value.

    Abstract translation: 一种方法和装置,其中所述方法包括解析压缩视频流,从解析流获得宏块大小信息,从宏块大小导出的计算因子,其中所述因素包括归一化比特大小,比特大小比率和 计算从压缩视频的相对帧特征导出的对应的自适应阈值,将从宏块大小信息导出的因子与相应的自适应阈值进行比较,并且当因子超过阈值时基于比较的组合来检测运动 。

    DETERMINING PUSHBACK DIRECTION
    12.
    发明申请
    DETERMINING PUSHBACK DIRECTION 有权
    确定按钮方向

    公开(公告)号:US20140142907A1

    公开(公告)日:2014-05-22

    申请号:US13683871

    申请日:2012-11-21

    CPC classification number: G06F17/10 G06T7/20 G06T2207/30236

    Abstract: Devices, methods, and systems for determining pushback direction are described herein. One method includes receiving a video image of an aircraft during a pushback of the aircraft, determining a motion flow map associated with the video image during the pushback, determining a motion orientation histogram associated with the video image during the pushback, and determining a direction of the pushback based on the motion flow map and the motion orientation histogram.

    Abstract translation: 本文描述了用于确定推回方向的装置,方法和系统。 一种方法包括在飞行器的推回期间接收飞行器的视频图像,在推回期间确定与视频图像相关联的运动流程图,确定在推回期间与视频图像相关联的运动方向直方图,以及确定方向 基于运动流程图和运动方向直方图的推回。

Patent Agency Ranking