{
    "cam_num":4,
    "screen_square_size": 25.31,
    "screen_chessboard_size": [10, 6],
    "world_chessboard_size": [6, 6],
    "world_square_size": 35.2,
    "world_square_spacing":10.56,
    "d": 12.5,
    "num_freq": 3,
    "screenPixelSize": [1600, 1200],
    "screenorigin_point": [379, 298],
    "Axis_conversion": [[-1, -1],[-1, -1], [-1, -1],[-1, -1]],
    "k": 32.0,
    "pixelSize_mm": 0.254,
    "grid_spacing":1,
    "cam_params": "cam_params_4.pkl",
    "screen_params":"screen_params_1216_4_1.pkl"
}