This paper presents an image-based position measurement of underwater objects using a low-cost ma... more This paper presents an image-based position measurement of underwater objects using a low-cost maritime mobile robot with a monocular camera. Visual recognition of distant underwater objects is possible in the water with high transparency, for example, in the coastal sea area of Okinawa prefecture, Japan. In this paper, we apply the proposed method to estimate the position of an old anchor that is at a deep of 30 [m] and is estimated to be hundreds-of-years-old in an archaeological site in Ishigaki Island. We explain the measurement principle of the proposed method and the developed system. Moreover, we describe the experiment conducted off the coast of Ishigaki Island and show the experimental results of the proposed method.
The Journal of Island and Coastal Archaeology, May 1, 2011
This article presents an analysis of fish bones and prehistoric fishing on Fais in the western Ca... more This article presents an analysis of fish bones and prehistoric fishing on Fais in the western Caroline Islands, Micronesia. In total 18 marine fish families (26 taxa) were identified including two families of sharks (Carcharhinidae and Lamnidae). Our analysis with use of vertebrae for identification reveals that the total MNI (Minimum Number of Individuals) of inshore and offshore (outer-reef to
New evidence from the rockshelter site of Aru Manara, on the island of Morotai, in the northern M... more New evidence from the rockshelter site of Aru Manara, on the island of Morotai, in the northern Moluccas, East Indonesia, suggests an earlier than previously assumed date for extensive interactions between this area of Southeast Asia and the wider Pacific. Shared mortuary customs and associated ceramic grave goods, along with other practices such as megalithic traditions, appear to start in the Late Neolithic, but become more widespread and consolidated in the Early Metal Age. Excavations at Aru Manara show that the northern Moluccas may have figured prominently in the newly established network of interaction evidenced at this time, making it an important location in the spread and dispersal of people and culture throughout Island Southeast Asia and into Oceania.
Terra Australis reports the results of archaeological and related research within the south and e... more Terra Australis reports the results of archaeological and related research within the south and east of Asia, though mainly Australia, New Guinea and island Melanesia-lands that remained terra australis incognita to generations of prehistorians. Its subject is the settlement of the diverse environments in this isolated quarter of the globe by peoples who have maintained their discrete and traditional ways of life into the recent recorded or remembered past and at times into the observable present.
High-resolution multibeam bathymetric survey for development of the shallow sea geomorphology and... more High-resolution multibeam bathymetric survey for development of the shallow sea geomorphology and applications to the related sciences 菅 浩伸(岡山大)・長尾正之(産総研 地質情報)・堀 信行(奈良大)・渡久地 健(琉球大)・浦田健作
International Journal of Nautical Archaeology, Jun 12, 2018
The USS Emmons, a 106m US Navy Gleaves-class destroyer minesweeper that sank in 40m of water off ... more The USS Emmons, a 106m US Navy Gleaves-class destroyer minesweeper that sank in 40m of water off Okinawa Island, Japan after kamikaze attack in 1945, is used as a case study for examining the history, multivocal significance, and heritage management of a World War II naval battle site. A baseline record of the site was made using an innovative method incorporating precise control points obtained from high-resolution multibeam echosounding bathymetry to generate 3D models using structure-from-motion photogrammetry. The 3D models produced can be used for sharing information about this underwater cultural heritage and for future in situ monitoring of the archaeological remains.
This paper presents an image-based position measurement of underwater objects using a low-cost ma... more This paper presents an image-based position measurement of underwater objects using a low-cost maritime mobile robot with a monocular camera. Visual recognition of distant underwater objects is possible in the water with high transparency, for example, in the coastal sea area of Okinawa prefecture, Japan. In this paper, we apply the proposed method to estimate the position of an old anchor that is at a deep of 30 [m] and is estimated to be hundreds-of-years-old in an archaeological site in Ishigaki Island. We explain the measurement principle of the proposed method and the developed system. Moreover, we describe the experiment conducted off the coast of Ishigaki Island and show the experimental results of the proposed method.
The Journal of Island and Coastal Archaeology, May 1, 2011
This article presents an analysis of fish bones and prehistoric fishing on Fais in the western Ca... more This article presents an analysis of fish bones and prehistoric fishing on Fais in the western Caroline Islands, Micronesia. In total 18 marine fish families (26 taxa) were identified including two families of sharks (Carcharhinidae and Lamnidae). Our analysis with use of vertebrae for identification reveals that the total MNI (Minimum Number of Individuals) of inshore and offshore (outer-reef to
New evidence from the rockshelter site of Aru Manara, on the island of Morotai, in the northern M... more New evidence from the rockshelter site of Aru Manara, on the island of Morotai, in the northern Moluccas, East Indonesia, suggests an earlier than previously assumed date for extensive interactions between this area of Southeast Asia and the wider Pacific. Shared mortuary customs and associated ceramic grave goods, along with other practices such as megalithic traditions, appear to start in the Late Neolithic, but become more widespread and consolidated in the Early Metal Age. Excavations at Aru Manara show that the northern Moluccas may have figured prominently in the newly established network of interaction evidenced at this time, making it an important location in the spread and dispersal of people and culture throughout Island Southeast Asia and into Oceania.
Terra Australis reports the results of archaeological and related research within the south and e... more Terra Australis reports the results of archaeological and related research within the south and east of Asia, though mainly Australia, New Guinea and island Melanesia-lands that remained terra australis incognita to generations of prehistorians. Its subject is the settlement of the diverse environments in this isolated quarter of the globe by peoples who have maintained their discrete and traditional ways of life into the recent recorded or remembered past and at times into the observable present.
High-resolution multibeam bathymetric survey for development of the shallow sea geomorphology and... more High-resolution multibeam bathymetric survey for development of the shallow sea geomorphology and applications to the related sciences 菅 浩伸(岡山大)・長尾正之(産総研 地質情報)・堀 信行(奈良大)・渡久地 健(琉球大)・浦田健作
International Journal of Nautical Archaeology, Jun 12, 2018
The USS Emmons, a 106m US Navy Gleaves-class destroyer minesweeper that sank in 40m of water off ... more The USS Emmons, a 106m US Navy Gleaves-class destroyer minesweeper that sank in 40m of water off Okinawa Island, Japan after kamikaze attack in 1945, is used as a case study for examining the history, multivocal significance, and heritage management of a World War II naval battle site. A baseline record of the site was made using an innovative method incorporating precise control points obtained from high-resolution multibeam echosounding bathymetry to generate 3D models using structure-from-motion photogrammetry. The 3D models produced can be used for sharing information about this underwater cultural heritage and for future in situ monitoring of the archaeological remains.
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Papers by Rintaro Ono