A Comparative Analysis between Active and Passive Techniques for Underwater 3D Reconstruction of Close-Range Objects

The theory and characteristics of the multi-baseline digital close-range photogrametry were discussed to be used in cultural relics preservation. Take the 3D reconstruction project of the Yu Shan the 5th mural tomb in Ji-an as an example, two methods were put forward to measure the control points of the image without any harm to the object. Also, Tricolor cool tone electron energy conservation lamp was used to meet the strict color control of the mural images. Engineering tests show that the methods put forward could greatly reduce the field work and labor intensity with the characteristics of high accuracy, automation and efficiency. Production efficiency is improved as well. The precision of mapping and image texture satisfies the requirements of cultural relics preservation. In addition, how to manage and index such data through database technology needs further study.

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Automatic Keyline Recognition and 3D Reconstruction For Quasi-Planar Façades in Close-range Images

The Photogrammetric Record ◽

10.1111/phor.12141 ◽

2016 ◽

Vol 31 (153) ◽

pp. 29-50 ◽

Cited By ~ 2

Author(s):

Chang Li ◽

Yongjun Zhang ◽

Zuxun Zhang

Keyword(s):

3D Reconstruction ◽

Range Images ◽

Close Range

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MONITORING AND ASSESSMENT OF ROAD CRACKS AND POTHOLES USING DIGITAL CLOSE RANGE PHOTOGRAMMETRY 3D RECONSTRUCTION TECHNIQUE

INTERNATIONAL JOURNAL OF CIVIL ENGINEERING AND TECHNOLOGY (IJCIET) ◽

10.34218/ijciet.11.1.2020.013 ◽

2020 ◽

Vol 11 (1) ◽

Author(s):

Hossam El-Din Fawzy ◽

Essam Sharaf El Din

Keyword(s):

3D Reconstruction ◽

Reconstruction Technique ◽

Close Range Photogrammetry ◽

Close Range

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SYNCHRONIZATION OF PICAM CAMERAS FOR THREE-DIMENSIONAL STUDY OF DYNAMIC MULTI-DOMAINS NATURAL SCENES

ISPRS Annals of Photogrammetry Remote Sensing and Spatial Information Sciences ◽

10.5194/isprs-annals-v-1-2020-277-2020 ◽

2020 ◽

Vol V-1-2020 ◽

pp. 277-284

Author(s):

L. Avanthey ◽

L. Beaudoin ◽

C. Villard ◽

S. Mellouk ◽

R. Treglia

Keyword(s):

Remote Sensing ◽

3D Reconstruction ◽

Low Cost ◽

Three Dimensional ◽

Main Issue ◽

Natural Scenes ◽

Dynamic Scenes ◽

Final Model ◽

Close Range

Abstract. In this article, we study the interest of PiCam and its possibilities offered for the realization of a light payload (small and inexpensive) in order to perform the 3D reconstruction of dynamic scenes (underwater or aerial) in close-range remote sensing. We see that on these observation scales, movements of the scenes due to flora and fauna cannot be ignored if we want these objects to be part of the final model. We review the sensors used in the literature for 3D reconstruction and then present the arguments in favor of PiCam with regard to the constraints posed by the use of light and agile vectors. The main issue is the synchronization of these low cost sensors, which is not native: we explain the different steps to obtain a satisfactory synchronization rate with regard to the dynamism of the studied scenes and present the results obtained.

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