Results 41 to 50 of about 97,482 (247)

STUDI APLIKASI MULTIBEAM ECHOSOUNDER DAN SIDE SCAN SONAR UNTUK MENDETEKSI FREE SPAN PADA SALURAN PIPA BAWAH LAUT

Geoid, 2015
Saluran pipa bawah laut sebagai salah satu sistem distribusi dalam industri minyak dan gas harus selalu diperhatikan kondisinya agar terhindar dari risiko kerugian material maupun dampak terhadap lingkungan.
I Made Dwifa Satya Nugraha, Yuwono Yuwono   +1 more
doaj   +1 more source

Model for Estimation of Bounds in Digital Coding of Seabed Images [PDF]

, 2015
This paper proposes the novel model for estimation of bounds in digital coding of images. Entropy coding of images is exploited to measure the useful information content of the data.
Samcovic, A.
core   +2 more sources

Detection of Small Objects in Side-Scan Sonar Images Using an Enhanced YOLOv7-Based Approach

Journal of Marine Science and Engineering, 2023
Deep learning-based object detection methods have demonstrated remarkable effectiveness across various domains. Recently, there has been growing interest in applying these techniques to underwater environments.
Feihu Zhang, Wei Zhang, Chensheng Cheng, Xujia Hou, Chun Cao   +4 more
semanticscholar   +1 more source

Using Side-Scan Sonar instrument to Characterize and map of seabed identification target in punggur sea of the Riau Islands, Indonesia.

JGEET: Journal of Geoscience, Engineering, Environment and Technology, 2017
Punggur sea has many habitats, object, and structured of seabed with hight tide and wave. Side scan sonar is an underwater acoustic instrument for identification of seabed.
Muhammad Zainuddin Lubis, Wenang Anurogo, Hanah Khoirunnisa, Sudra Irawan, Oktavianto Gustin, Arif Roziqin   +5 more
doaj   +1 more source

A Texture Feature Removal Network for Sonar Image Classification and Detection

Remote Sensing, 2023
Deep neural network (DNN) was applied in sonar image target recognition tasks, but it is very difficult to obtain enough sonar images that contain a target; as a result, the direct use of a small amount of data to train a DNN will cause overfitting and ...
Chuanlong Li, Xiufen Ye, Jier Xi, Yunpeng Jia   +3 more
doaj   +1 more source

An Image Enhancement Method for Side-Scan Sonar Images Based on Multi-Stage Repairing Image Fusion

Electronics, 2023
The noise interference of side-scan sonar images is stronger than that of optical images, and the gray level is uneven. To solve this problem, we propose a side-scan sonar image enhancement method based on multi-stage repairing image fusion.
Ziwei Lu, Tongwei Zhu, Huiyu Zhou, Lanyong Zhang, Chun Jia   +4 more
semanticscholar   +1 more source

Multi-Modal Multi-Stage Underwater Side-Scan Sonar Target Recognition Based on Synthetic Images

Remote Sensing, 2023
Due to the small sample size of underwater acoustic data and the strong noise interference caused by seabed reverberation, recognizing underwater targets in Side-Scan Sonar (SSS) images is challenging.
Jian Wang, Haisen S. Li, Guanying Huo, Chao Li, Yuhang Wei   +4 more
semanticscholar   +1 more source

Mapping bentbic habitats using side scan sonar [PDF]

, 2001
Appeldoorn, R.S., Prada, M.C., Rivera, J.A.   +2 more
core   +2 more sources

Small Target Detection Method Based on Low-Rank Sparse Matrix Factorization for Side-Scan Sonar Images

Remote Sensing, 2023
Target detection in side-scan sonar images plays a significant role in ocean engineering. However, the target images are usually severely interfered by the complex background and strong environmental noise, which makes it difficult to extract robust ...
Ju He, Jianfeng Chen, Hu Xu, Muhammad Saad Ayub   +3 more
semanticscholar   +1 more source

Using Remote Sensing Techniques to Document and Identify the Largest Underwater Object of the Baltic Sea: Case Study of the Only German Aircraft Carrier, Graf Zeppelin

Remote Sensing, 2020
New shipwrecks are usually found during other work at sea. In 2006, the research vessel St. Barbara discovered probably the most massive wreck that lies on the bottom of the Baltic Sea.
Artur Grządziel
doaj   +1 more source