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ISPRS International Journal of Geo-Information, Volume 13, Issue 5

May 2024 - 27 articles

Cover Story: Using Grounded SAM as an example, we investigate the capability of an open vocabulary model in the semantic segmentation of images from complex urban street scenes, employing benchmark datasets. Results indicate strong performance in single-category segmentation but highlight difficulties in multi-category scenarios, particularly with categories bearing close textual or visual resemblances. Adjustments in textual prompts significantly improved detection accuracy, though challenges persisted in distinguishing between some visually similar objects. Comparative analysis with state-of-the-art models revealed Grounded SAM’s direct inference capability without further training. This study concludes that while the open vocabulary model marks a significant advancement, further consideration of prompted classes is essential in complex scenarios. View this paper
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Articles (27)

  • Article
  • Open Access
19 Citations
2,879 Views
26 Pages

The Chinese urban regeneration movement underscores a “people-oriented” paradigm, aimed at addressing urban challenges stemming from rapid prior urbanization, while striving for high-quality and sustainable urban development. At the commu...

  • Article
  • Open Access
9 Citations
5,032 Views
14 Pages

Navigation systems are extensively used in everyday life, but the conventional A* algorithm has several limitations in path planning applications within these systems, such as low degrees of freedom in path planning, inadequate consideration of the e...

  • Article
  • Open Access
11 Citations
3,654 Views
21 Pages

A Question and Answering Service of Typhoon Disasters Based on the T5 Large Language Model

  • Yongqi Xia,
  • Yi Huang,
  • Qianqian Qiu,
  • Xueying Zhang,
  • Lizhi Miao and
  • Yixiang Chen

A typhoon disaster is a common meteorological disaster that seriously impacts natural ecology, social economy, and even human sustainable development. It is crucial to access the typhoon disaster information, and the corresponding disaster prevention...

  • Article
  • Open Access
1,759 Views
18 Pages

This research study focuses on determining the spatial transformations taking place in selected areas in the context of administrative changes in the 19th century (in the context of city rights) using the example of three neighboring places in wester...

  • Article
  • Open Access
8 Citations
3,167 Views
20 Pages

A deep learning-based Visual Inertial SLAM technique is proposed in this paper to ensure accurate autonomous localization of mobile robots in environments with dynamic objects. Addressing the limitations of real-time performance in deep learning algo...

  • Article
  • Open Access
2 Citations
2,679 Views
20 Pages

Satellite sea surface temperature (SST) images are valuable for various oceanic applications, including climate monitoring, ocean modeling, and marine ecology. However, cloud cover often obscures SST signals, creating gaps in the data that reduce res...

  • Article
  • Open Access
5 Citations
4,744 Views
24 Pages

Land Subsidence Susceptibility Mapping in Ca Mau Province, Vietnam, Using Boosting Models

  • Anh Van Tran,
  • Maria Antonia Brovelli,
  • Khien Trung Ha,
  • Dong Thanh Khuc,
  • Duong Nhat Tran,
  • Hanh Hong Tran and
  • Nghi Thanh Le

The Ca Mau Peninsula, situated in the Mekong Delta of Vietnam, features low-lying terrain. In addition to the challenges posed by climate change, land subsidence in the area is exacerbated by the overexploitation of groundwater and intensive agricult...

  • Article
  • Open Access
2 Citations
2,578 Views
18 Pages

Towards Quality Management Procedures in 3D Cadastre

  • Nenad Višnjevac,
  • Mladen Šoškić and
  • Rajica Mihajlović

The 3D cadastre presents a modern approach to the development of cadastral information systems, with the role of improving current cadastral systems and overcoming the challenges of a 2D-based approach. Technological advancements, standardization, an...

  • Article
  • Open Access
5 Citations
2,704 Views
21 Pages

Total Least Squares Estimation in Hedonic House Price Models

  • Wenxi Zhan,
  • Yu Hu,
  • Wenxian Zeng,
  • Xing Fang,
  • Xionghua Kang and
  • Dawei Li

In real estate valuation using the Hedonic Price Model (HPM) estimated via Ordinary Least Squares (OLS) regression, subjectivity and measurement errors in the independent variables violate the Gauss–Markov theorem assumption of a non-random coe...

  • Article
  • Open Access
6 Citations
3,936 Views
25 Pages

Oil palm cultivation thrives as a prominent agricultural endeavor within the southern region of Thailand, where the country ranks third globally in production, following Malaysia and Indonesia. The assessment of oil palm bunch ripeness serves various...

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ISPRS Int. J. Geo-Inf. - ISSN 2220-9964Creative Common CC BY license