SynthCal: A Synthetic Benchmarking Pipeline to Compare Camera Calibration Algorithms

• URL: http://arxiv.org/abs/2307.01013v1
• Date: Mon, 3 Jul 2023 13:44:36 GMT
• Title: SynthCal: A Synthetic Benchmarking Pipeline to Compare Camera Calibration Algorithms
• Authors: Lala Shakti Swarup Ray, Bo Zhou, Lars Krupp, Sungho Suh, Paul Lukowicz
• Abstract summary: We present a SynthCal-generated calibration dataset with four common patterns, two camera types, and two environments with varying view, distortion, lighting, and noise levels. The dataset evaluates single-view calibration algorithms by measuring reprojection and root-mean-square errors for identical patterns and camera settings.
• Score: 7.421780713537146
• License: http://creativecommons.org/licenses/by-nc-nd/4.0/
• Abstract: Accurate camera calibration is crucial for various computer vision applications. However, measuring camera parameters in the real world is challenging and arduous, and there needs to be a dataset with ground truth to evaluate calibration algorithms' accuracy. In this paper, we present SynthCal, a synthetic camera calibration benchmarking pipeline that generates images of calibration patterns to measure and enable accurate quantification of calibration algorithm performance in camera parameter estimation. We present a SynthCal-generated calibration dataset with four common patterns, two camera types, and two environments with varying view, distortion, lighting, and noise levels. The dataset evaluates single-view calibration algorithms by measuring reprojection and root-mean-square errors for identical patterns and camera settings. Additionally, we analyze the significance of different patterns using Zhang's method, which estimates intrinsic and extrinsic camera parameters with known correspondences between 3D points and their 2D projections in different configurations and environments. The experimental results demonstrate the effectiveness of SynthCal in evaluating various calibration algorithms and patterns.

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