Breaking New Ground in Monocular Depth Estimation with Dynamic Iterative Refinement and Scale Consistency

Monocular depth estimation (MDE) is a critical task in computer vision with applications in autonomous driving, robotics, and augmented reality. However, predicting depth from a single image poses significant challenges, especially in dynamic scenes where moving objects introduce scale ambiguity and...

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Main Authors: Akmalbek Abdusalomov, Sabina Umirzakova, Makhkamov Bakhtiyor Shukhratovich, Azamat Kakhorov, Young-Im Cho
Format: Article
Language:English
Published: MDPI AG 2025-01-01
Series:Applied Sciences
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Online Access:https://www.mdpi.com/2076-3417/15/2/674
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author Akmalbek Abdusalomov
Sabina Umirzakova
Makhkamov Bakhtiyor Shukhratovich
Azamat Kakhorov
Young-Im Cho
author_facet Akmalbek Abdusalomov
Sabina Umirzakova
Makhkamov Bakhtiyor Shukhratovich
Azamat Kakhorov
Young-Im Cho
author_sort Akmalbek Abdusalomov
collection DOAJ
description Monocular depth estimation (MDE) is a critical task in computer vision with applications in autonomous driving, robotics, and augmented reality. However, predicting depth from a single image poses significant challenges, especially in dynamic scenes where moving objects introduce scale ambiguity and inaccuracies. In this paper, we propose the Dynamic Iterative Monocular Depth Estimation (DI-MDE) framework, which integrates an iterative refinement process with a novel scale-alignment module to address these issues. Our approach combines elastic depth bins that adjust dynamically based on uncertainty estimates with a scale-alignment mechanism to ensure consistency between static and dynamic regions. Leveraging self-supervised learning, DI-MDE does not require ground truth depth labels, making it scalable and applicable to real-world environments. Experimental results on standard datasets such as SUN RGB-D and KITTI demonstrate that our method achieves state-of-the-art performance, significantly improving depth prediction accuracy in dynamic scenes. This work contributes a robust and efficient solution to the challenges of monocular depth estimation, offering advancements in both depth refinement and scale consistency.
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institution Kabale University
issn 2076-3417
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publishDate 2025-01-01
publisher MDPI AG
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series Applied Sciences
spelling doaj-art-a9b38a258961454c809baa6ef96175352025-01-24T13:20:24ZengMDPI AGApplied Sciences2076-34172025-01-0115267410.3390/app15020674Breaking New Ground in Monocular Depth Estimation with Dynamic Iterative Refinement and Scale ConsistencyAkmalbek Abdusalomov0Sabina Umirzakova1Makhkamov Bakhtiyor Shukhratovich2Azamat Kakhorov3Young-Im Cho4Department of Computer Engineering, Gachon University, Sujeong-gu, Seongnam-si 461-701, Gyeonggi-do, Republic of KoreaDepartment of Computer Engineering, Gachon University, Sujeong-gu, Seongnam-si 461-701, Gyeonggi-do, Republic of KoreaDepartment of Computer Systems, Tashkent University of Information Technologies Named After Muhammad Al-Khwarizmi, Tashkent 100200, UzbekistanDepartment of Artificial Intelligence, Tashkent State University of Economics, Tashkent 100066, UzbekistanDepartment of Computer Engineering, Gachon University, Sujeong-gu, Seongnam-si 461-701, Gyeonggi-do, Republic of KoreaMonocular depth estimation (MDE) is a critical task in computer vision with applications in autonomous driving, robotics, and augmented reality. However, predicting depth from a single image poses significant challenges, especially in dynamic scenes where moving objects introduce scale ambiguity and inaccuracies. In this paper, we propose the Dynamic Iterative Monocular Depth Estimation (DI-MDE) framework, which integrates an iterative refinement process with a novel scale-alignment module to address these issues. Our approach combines elastic depth bins that adjust dynamically based on uncertainty estimates with a scale-alignment mechanism to ensure consistency between static and dynamic regions. Leveraging self-supervised learning, DI-MDE does not require ground truth depth labels, making it scalable and applicable to real-world environments. Experimental results on standard datasets such as SUN RGB-D and KITTI demonstrate that our method achieves state-of-the-art performance, significantly improving depth prediction accuracy in dynamic scenes. This work contributes a robust and efficient solution to the challenges of monocular depth estimation, offering advancements in both depth refinement and scale consistency.https://www.mdpi.com/2076-3417/15/2/674monocular depth estimation (MDE)dynamic scenesscale ambiguityself-supervised learning
spellingShingle Akmalbek Abdusalomov
Sabina Umirzakova
Makhkamov Bakhtiyor Shukhratovich
Azamat Kakhorov
Young-Im Cho
Breaking New Ground in Monocular Depth Estimation with Dynamic Iterative Refinement and Scale Consistency
Applied Sciences
monocular depth estimation (MDE)
dynamic scenes
scale ambiguity
self-supervised learning
title Breaking New Ground in Monocular Depth Estimation with Dynamic Iterative Refinement and Scale Consistency
title_full Breaking New Ground in Monocular Depth Estimation with Dynamic Iterative Refinement and Scale Consistency
title_fullStr Breaking New Ground in Monocular Depth Estimation with Dynamic Iterative Refinement and Scale Consistency
title_full_unstemmed Breaking New Ground in Monocular Depth Estimation with Dynamic Iterative Refinement and Scale Consistency
title_short Breaking New Ground in Monocular Depth Estimation with Dynamic Iterative Refinement and Scale Consistency
title_sort breaking new ground in monocular depth estimation with dynamic iterative refinement and scale consistency
topic monocular depth estimation (MDE)
dynamic scenes
scale ambiguity
self-supervised learning
url https://www.mdpi.com/2076-3417/15/2/674
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