Stereo matching technique for large-scale ship block using Guided Mask in Keypoint-based ROIKeypoint 기반 ROI에서의 Guided Mask를 이용한 대규모 선체블록의 스테레오 매칭 기법

Cited 0 time in webofscience Cited 0 time in scopus
  • Hit : 114
  • Download : 0
The 3D precision measurement technology plays a crucial role in the quality control of products in the shipbuilding and manufacturing industries. In practical applications, Time-of-Flight optical measurement systems are commonly used for precise measurement of large ship blocks, but they are cumbersome and time-consuming. To address this challenge, research has been conducted on the 3D reconstruction of ship blocks using stereo cameras. Calibration is performed to determine camera parameters, and 3D shapes are reconstructed. However, the large size of ship blocks leads to significant perspective differences between images, making it difficult to apply conventional stereo matching techniques. Consequently, manual selection of measurement points in each image becomes necessary. In this study, we propose a novel stereo matching technique to address this issue and improve the identification of measurement points on captured ship blocks. Initially, a dataset of stereo images of ship blocks is constructed through various experiments. Subsequently, a feature matching network-based clustering process is applied to stereo images and the coordinates of query points. This process identifies keypoint clusters around query points and their centroids. Using these centroids as reference points, regions of interest (ROI) are obtained and preprocessed through co-visible region segmentation. A transformer-based algorithm predicts corresponding points on the target image, and their coordinates are obtained. Finally, these coordinates undergo a refinement process based on epipolar geometry. By utilizing this stereo matching technique, 3D coordinates for arbitrary points on the images can be obtained. This innovative approach is expected to overcome the inefficiencies of conventional measurement point identification, representing a groundbreaking technology in the field of stereo matching under wide baseline conditions.
Advisors
박용화researcher
Description
한국과학기술원 :기계공학과,
Publisher
한국과학기술원
Issue Date
2024
Identifier
325007
Language
eng
Description

학위논문(석사) - 한국과학기술원 : 기계공학과, 2024.2,[iii, 25p :]

Keywords

카메라▼a비전▼a계측▼a이미지 상관관계▼a스테레오 매칭▼a에피폴라 기하학; Camera▼aVision▼aMeasurement▼aImage correlation▼aStereo matching▼aEpipolar geometry

URI
http://hdl.handle.net/10203/321335
Link
http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=1096003&flag=dissertation
Appears in Collection
ME-Theses_Master(석사논문)
Files in This Item
There are no files associated with this item.

qr_code

  • mendeley

    citeulike


rss_1.0 rss_2.0 atom_1.0