def is_before_clip_plane_camera(points_camera, cam_near_clip=0.15):
    """
    points_camera: (N, 3), N points on X(right)-Y(down)-Z(front) camera coordinate
    cam_near_clip: scalar, the near projection plane

    is_before: bool, is the point locate before the near clip plane
    """
    return points_camera[:, 2] > cam_near_clip