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菜鸟实习日记~day21(ILSVRC2016之MCG-ICT-

菜鸟实习日记~day21(ILSVRC2016之MCG-ICT-

作者: 飞翔的小瓜瓜 | 来源:发表于2017-11-09 17:05 被阅读0次

    一、MCG-ICT-CAS Object Detection

    1、获得成绩

    2、overview

    3、主要的创新点

    (1)在建立tubelet时,提出了基于detection的检测方式

    a.Adjacent Checking–By optical-flow for precise tubelet

       If IoU (Red, Green) > a given threshold: same tubelet 

        else: a new tubelet

    b.Detection Box Sequentialization

    c.Coherent reclassification–Use majority voting to get coherent categories

       throughout a given tubelet

    但是发现效果不够好,会出现目标消失和轨迹离散的情况,于是想到将基于检测的tubelet与基于track的tubelet相结合


    tracking based tubelet:(作者发现会出现位置漂移)

    a.Anchor Frame Selection–Select the frame with highest detection score object(其他方法大部分都是用的这个方法)

    b.Anchor Target Selection–Exploit the adjacent information with optical flow [5]to determine     the reliable anchor targets

    c.Anchor Target Selection: remove the unreliable去掉一些不可相信的检测框(通过bbox         match)

    d.Multi-target tracking with detection recall


    (2)tubelet fusion:

    有两种方式:

    Union Fusion——Merge overlapping tubelets(有重叠部分)

    Union Fusion

    Concatenation Fusion——Merge successive tubelets(连接的)

    4、其他结构配置

    still image detection:

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