In this paper, we study the effects of windshield refraction for autonomous driving
applications. These distortion effects are surprisingly large and can not be explained by …

This paper proposes a near-central camera model and its solution approach.'Near-
central'refers to cases in which the rays do not converge to a point and do not have severely …

The disclosure pertains to an apparatus comprising a circuitry. The circuitry is configured to
obtain a calibration image of a target, to derive a sparse image based on the calibration …

In sports science research, there are many topics that utilize the body motion of athletes
extracted by motion capture system, since motion information is valuable data for improving …

In this paper, we propose a new method for reconstructing 3D objects under light ray
distortion caused by unknown refractive media. The proposed method can reconstruct 3D …

Ryo Kawahara Abstract 3D shape acquisition is an important issue of Computer Vision
research. As a visual system, Catadioptric Vision System utilizes lens refraction and mirror …

Camera calibration that estimates the projective relationship between 3D and 2D image
spaces is one of the most crucial processes for such 3D image processing as 3D …

カメラキャリブレーションとは, カメラによって 3 次元シーンが 2 次元画像として撮像される過程を
モデル化してそのモデルパラメータを推定するプロセスであり, レンズの焦点距離や主点 …

Background In computer vision, there are multiple calibration problems. The most
fundamental one is the camera calibration, which determines the intrinsic and extrinsic …

In semiconductor manufacturing, small and precise tools such as collets are used during the
assembly process to control and improve product quality. Monitoring the quality of the collet …