Image processing device and image processing method

The image processing apparatus enhances stereo camera systems by employing parallelization and disparity estimation to accurately measure distances around the baseline extension line, addressing inaccuracies in three-dimensional point cloud estimation.

WO2026120874A1 Publication Date: 2026-06-11ASTEMO LTD
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Patent Information

Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
ASTEMO LTD
Filing Date
2025-09-01
Publication Date
2026-06-11

AI Technical Summary

⚠Technical Problem

Existing stereo camera systems struggle to accurately estimate a three-dimensional point cloud around the baseline extension line, leading to inaccuracies in distance measurement due to issues with parallelization and projection methods.

⚗Method used

An image processing apparatus and method that includes parallelization processing units, disparity estimation, magnification calculation, and distance determination units to efficiently measure distances around the baseline extension line by generating parallelized images, determining disparity and magnification ratios, and calculating distances using these values.

🎯Benefits of technology

Enables accurate estimation of three-dimensional point clouds and distances even around the baseline extension line, improving the precision of stereo camera systems in autonomous driving and advanced safety systems.

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Abstract

An image processing device 10 comprises: a parallelization processing unit 601 that generates a plurality of parallelized images through parallelization processing of a plurality of images captured by cameras 1, 2, which are a plurality of imaging units; a parallax estimation unit 603 that obtains parallax of the plurality of parallelized images; a magnification calculation unit 604 that obtains, on the basis of the parallax, the magnification ratio between a first target region in one of the parallelized images and a second target region corresponding to the first target region in another one of the parallelized images; and a distance determination unit 605 that determines the distance to an object on the basis of the parallax and the magnification ratio.
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