如何缩小识别过程中两次检测之间的时间间隔？

Question

我正在使用Rekognition的StartPersonTracking和GetPersonTracking与某些人进行视频分析。结果是一个json文件，如下所示：

"Persons": [{
        "Timestamp": 0, 
        "Person": {
            "BoundingBox": {
                "Width": 0.0520833320915699, 
                "Top": 0.3125, 
                "Left": 0.40625, 
                "Height": 0.09444444626569748
            }, 
            "Index": 4
        }
    }, 
    {
        "Timestamp": 33, 
        "Person": {
            "BoundingBox": {
                "Width": 0.20624999701976776, 
                "Top": 0.4611110985279083, 
                "Left": 0.17499999701976776, 
                "Height": 0.3986110985279083
            }, 
            "Index": 1
        }
    }, 
    {
        "Timestamp": 33, 
        "Person": {
            "BoundingBox": {
                "Width": 0.22291666269302368, 
                "Top": 0.3194444477558136, 
                "Left": 0.7708333134651184, 
                "Height": 0.5444444417953491
            }, 
            "Index": 2
        }
    }, 
    {
        "Timestamp": 33, 
        "Person": {
            "BoundingBox": {
                "Width": 0.12083332985639572, 
                "Top": 0.36666667461395264, 
                "Left": 0.4520833194255829, 
                "Height": 0.24722221493721008
            }, 
            "Index": 3
        }
    }, 
    {
        "Timestamp": 33, 
        "Person": {
            "BoundingBox": {
                "Width": 0.0520833320915699, 
                "Top": 0.3125, 
                "Left": 0.40625, 
                "Height": 0.09444444626569748
            }, 
            "Index": 4
        }
    }, 
    {
        "Timestamp": 100, 
        "Person": {
            "BoundingBox": {
                "Width": 0.24375000596046448, 
                "Top": 0.2888889014720917, 
                "Left": 0.5833333134651184, 
                "Height": 0.5847222208976746
            }, 
            "Index": 0
        }
    },...

每个项目都有其时间戳，因此我们可以在整个视频中跟踪每个人。问题在于两次检测之间的差距可能很大。有没有已知的减小间隙的方法，即提高检测密度？

我在文档中或在php / java SDK中都找不到任何内容