{
    "cam_num":1,
    "screen_square_size": 9,
    "screen_chessboard_size": [9, 9],
    "world_chessboard_size": [41, 40],
    "d": 10.04,  
    "num_freq": 3,
    "screenPixelSize": [2160, 1215],
    "screenorigin_point": [1512.5,121.5],
    "Axis_conversion": [[1, -1]],
    "k": 32.0,
    "pixelSize_mm": 0.095955,
    "grid_spacing": 1,
    "cam_params": "cam_params_1.pkl",
    "screen_params":"screen_params_1.pkl"
}