Title
Retrieval Topic Recurrent Memory Network for Remote Sensing Image Captioning
Abstract
Remote sensing image (RSI) captioning aims to generate sentences to describe the content of RSIs. Generally, five sentences are used to describe the RSI in caption datasets. Every sentence can just focus on part of images’ contents due to the different attention parts of annotation persons. One annotated sentence may be ambiguous compared with other four sentences. However, previous methods, treating five sentences separately, may generate an ambiguous sentence. In order to consider five sentences together, a collection of words, which named topic words contained common information among five sentences, is jointly incorporated into a captioning model to generate a determinate sentence that covers common contents in RSIs. Instead of employing a naive recurrent neural network, a memory network in which topic words can be naturally included as memory cells is introduced to generate sentences. A novel retrieval topic recurrent memory network is proposed to utilize the topic words. First, a topic repository is built to record the topic words in training datasets. Then, the retrieval strategy is exploited to obtain the topic words for a test image from topic repository. Finally, the retrieved topic words are incorporated into a recurrent memory network to guide the sentence generation. In addition to getting topics through retrieval, the topic words of test images can also be edited manually. The proposed method sheds light on controllability of caption generation. Experiments are conducted on two caption datasets to evaluate the proposed method.
Year
DOI
Venue
2020
10.1109/JSTARS.2019.2959208
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Keywords
Field
DocType
Controllable caption,recurrent memory network (MN),remote sensing image (RSI) caption generation,retrieval topic
Closed captioning,Annotation,Remote sensing,Recurrent neural network,Sentence generation,Sentence,Mathematics,Standard test image
Journal
Volume
ISSN
Citations 
13
1939-1404
3
PageRank 
References 
Authors
0.40
0
4
Name
Order
Citations
PageRank
Binqiang Wang15910.46
Xiangtao Zheng240.74
Bo Qu331.07
Xiaoqiang Lu4119174.48