High-accuracy Range Image Generation by Fusing Binocular and Motion Stereo Using Fisheye Stereo Camera

Iida, Hirotaka; Ji, Yonghoon; Umeda, Kazunori; Ohashi, Akiyoshi; Fukuda, Daisuke; Kaneko, Shuzo; Murayama, Junya; Uchida, Yoshitaka

doi:10.1109/sii46433.2020.9025910

Cited by 6 publications

(4 citation statements)

References 16 publications

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“…Compared to the previous study [ 5 ], we achieved about twice the measurement range. Compared to the previous study [ 6 ], omnidirectional measurement is now possible with half the number of cameras.…”

Section: Discussionmentioning

confidence: 66%

“…In the study of Hirotaka Iida et al [ 5 ], a fisheye lens was used as a stereo camera for distance measurement, to enable a wider range of measurements that are impossible with ordinary cameras. However, the angle of view of a fisheye lens is generally about 180°, which restricts the measurement range.…”

Section: Introductionmentioning

confidence: 99%

“…In the study by Changhee Won et al [ 6 ], the team addressed the limitation of Iida et al [ 5 ] by utilizing four fisheye cameras and measuring the distance in all directions. Although this method allows for stable measurement in all directions, it requires double the number of cameras compared to the method of Iida et al [ 5 ]…”

Section: Introductionmentioning

confidence: 99%

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Research on Omnidirectional Stereo Measurement Using Convex Mirrors and Vertical Disparity

Ozawa

Kimura

et al. 2023

Sensors

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We propose an omnidirectional measurement method without blind spots by using a convex mirror, which in principle does not cause chromatic aberration, and by using vertical disparity by installing cameras at the top and bottom of the image. In recent years, there has been significant research in the fields of autonomous cars and robots. In these fields, three-dimensional measurements of the surrounding environment have become indispensable. Depth sensing with cameras is one of the most important sensors for recognizing the surrounding environment. Previous studies have attempted to measure a wide range of areas using fisheye and full spherical panoramic cameras. However, these approaches have limitations such as blind spots and the need for multiple cameras to measure all directions. Therefore, this paper describes a stereo camera system that uses a device capable of taking an omnidirectional image with a single shot, enabling omnidirectional measurement with only two cameras. This achievement was challenging to attain with conventional stereo cameras. The results of experiments confirmed an improvement in accuracy of up to 37.4% compared to previous studies. In addition, the system succeeded in generating depth image that can recognize distances in all directions in a single frame, demonstrating the possibility of omnidirectional measurement with two cameras.

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Section: Discussionmentioning

confidence: 66%

Section: Introductionmentioning

confidence: 99%

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Research on Omnidirectional Stereo Measurement Using Convex Mirrors and Vertical Disparity

Ozawa

Kimura

et al. 2023

Sensors

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“…In the field of stereo cameras, many systems that recognize a wide area have been studied. In the paper by Hirotaka Iida and his colleagues (2) , as shown in Fig. 1.4, a fisheye camera is used as a stereo camera for distance measurement, which enables measurement of a wider area than with a normal camera.…”

Section: Existing Methodsmentioning

confidence: 99%

Research on Omni-directional Stereo Measurement for Automatic Driving Assistance

Ozawa

Bao

2022

The Proceedings of the 9th International Conference on Intelligent Systems and Image Processing 2022

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This paper proposes an omnidirectional stereo measurement based on vertical disparity estimation using a Hyper Omni Vision. In the field of stereo cameras, there are studies that attempt to measure a wide area using a fisheye camera or an all-sky sphere type camera, but this stereo camera system using a Hyper Omni Vision that can capture all directions in one shot enables measurement in all directions, which has been difficult to achieve with conventional stereo cameras. Experiments have shown that the system can be used to generate depth images in all directions.

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Fisheye Stereo Camera Using Fisheye Vertical Stereo Method

Chikugo,

Arai,

Pathak

et al. 2024

2024 IEEE International Conference on Image Processing (ICIP)

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High-accuracy Range Image Generation by Fusing Binocular and Motion Stereo Using Fisheye Stereo Camera

Cited by 6 publications

References 16 publications

Research on Omnidirectional Stereo Measurement Using Convex Mirrors and Vertical Disparity

Research on Omnidirectional Stereo Measurement Using Convex Mirrors and Vertical Disparity

Research on Omni-directional Stereo Measurement for Automatic Driving Assistance

Fisheye Stereo Camera Using Fisheye Vertical Stereo Method

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