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Pixel-Level Remote Sensing Image Recognition Based on Bidirectional Word Vectors
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DOI：10.1109/TGRS.2019.2945591.png)
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Abstract
En 中文
In the traditional remote sensing image recognition, the traditional features (e.g., color features and texture features) cannot fully describe complex images, and the relationships between image pixels cannot be captured well. Using a single model or a traditional sequential joint model, it is easy to lose deep features during feature mining. This article proposes a new feature extraction method that uses the word embedding method from natural language processing to generate bidirectional real dense vectors to reflect the contextual relationships between the pixels. A bidirectional independent recurrent neural network (BiIndRNN) is combined with a convolutional neural network (CNN) to improve the sliced recurrent neural network (SRNN) algorithm model, which is then constructed in parallel with graph convolutional networks (GCNs) under an attention mechanism to fully exploit the deep features of images and to capture the semantic information of the context. This model is collectively named an improved SRNN and attention-treated GCN-based parallel (SAGP) model. Experiments conducted on Populus euphratica forests demonstrate that the proposed method outperforms traditional methods in terms of recognition accuracy. The validation done on public data set also proved it.
Keywords:
Feature extraction
Remote sensing
Recurrent neural networks
Image recognition
Semantics
Deep learning
Image color analysis
Attention mechanism
bidirectional independent recurrent neural network (BiIndRNN)
bidirectional word vector
graph convolutional networks (GCNs)
parallel joint algorithm
sliced recurrent neural network (SRNN)
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