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RSVQA: Visual Question Answering for Remote Sensing Data
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DOI：10.1109/TGRS.2020.2988782.png)
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摘要
En 中文
This article introduces the task of visual question answering for remote sensing data (RSVQA). Remote sensing images contain a wealth of information, which can be useful for a wide range of tasks, including land cover classification, object counting, or detection. However, most of the available methodologies are task-specific, thus inhibiting generic and easy access to the information contained in remote sensing data. As a consequence, accurate remote sensing product generation still requires expert knowledge. With RSVQA, we propose a system to extract information from remote sensing data that is accessible to every user: we use questions formulated in natural language and use them to interact with the images. With the system, images can be queried to obtain high-level information specific to the image content or relational dependencies between objects visible in the images. Using an automatic method introduced in this article, we built two data sets (using low- and high-resolution data) of image/question/answer triplets. The information required to build the questions and answers is queried from OpenStreetMap (OSM). The data sets can be used to train (when using supervised methods) and evaluate models to solve the RSVQA task. We report the results obtained by applying a model based on convolutional neural networks (CNNs) for the visual part and a recurrent neural network (RNN) for the natural language part of this task. The model is trained on the two data sets, yielding promising results in both cases.
Keyword:
Remote sensing
Task analysis
Visualization
Data models
Feature extraction
Knowledge discovery
Recurrent neural networks
Convolution neural networks (CNNs)
data set
deep learning
natural language
OpenStreetMap (OSM)
recurrent neural networks (RNNs)
very high resolution (HR)
visual question answering (VQA)
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期刊
IF:
8.6
论文数:
2.1W
被引数:
10.7W
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