1：Experimental Design and Method Selection:

The methodology involves establishing a forward model for light field camera imaging, using pinhole and thin-lens models, and employing the Levenberg-Marquardt algorithm for nonlinear optimization to solve for intrinsic and extrinsic parameters.

2：Sample Selection and Data Sources:

A checkerboard calibration plate with a grid size of 10 mm x 10 mm and 11x8 corner points is used as the object. Raw light field images are captured at a focus distance of 1500 mm with 15 different poses.

3：List of Experimental Equipment and Materials:

A multi-focus light field camera with a prime lens of 75 mm focal length, detector resolution of 7716x5364 pixels, pixel size of

4：12 μm x 12 μm, and a checkerboard of size 120 mm x 90 mm. Experimental Procedures and Operational Workflow:

Data preprocessing to locate microlens centers using white images and Gaussian filtering. Calibration experiments involve capturing images of the checkerboard in various poses, detecting corner points, grouping them, calculating virtual image points, and solving parameter matrices iteratively.

5：Data Analysis Methods:

Reprojection error analysis is performed to validate accuracy, using differences between reprojected and actual virtual corner points coordinates.