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Measurements of Green Space Ratio in Google Earth using Convolutional Neural Network

합성곱 신경망을 이용한 구글 어스에서의 녹지 비율 측정

  • Youn, Yeo-Su (Department of Computer Engineering, Cheongju University) ;
  • Kim, Kwang-Baek (Division of Computer Software Engineering, Silla University) ;
  • Park, Hyun-Jun (Division of Software Convergence, Cheongju University)
  • Received : 2019.10.31
  • Accepted : 2019.11.18
  • Published : 2020.03.31

Abstract

The preliminary investigation to expand the green space requires a lot of cost and time. In this paper, we solve the problem by measuring the ratio of green space in a specific region through a convolutional neural network based the green space classification using Google Earth images. First, the proposed method collects various region images in Google Earth and learns them by using the convolutional neural network. The proposed method divides the image recursively to measure the green space ratio of the specific region, and it determines whether the divided image is green space using a trained convolutional neural network model, and then the green space ratio is calculated using the regions determined as the green space. Experimental results show that the proposed method shows high performance in measuring green space ratios in various regions.

녹지 영역의 확충을 위한 사전 조사에는 많은 비용과 시간이 필요하다는 문제가 발생한다. 본 논문에서는 구글 어스를 이용한 합성곱 신경망 기반의 녹지 분류를 통해 특정 지역의 녹지 비율을 측정함으로써 문제를 해결한다. 먼저 제안하는 방법은 구글 어스에서 여러 지역 영상을 수집하고 합성곱 신경망을 이용하여 학습한다. 제안하는 방법은 특정 지역의 녹지 비율을 측정하기 위해서 영상을 재귀적으로 분할하고 학습된 모델을 이용하여 녹지 여부를 판단한 뒤, 녹지로 판단된 영역 면적을 이용하여 녹지 비율을 계산한다. 실험 결과 제안하는 방법은 다양한 지역의 녹지 비율 측정에 높은 성능을 보여주는 것을 확인할 수 있었다.

Keywords

References

  1. Korean Legislation. Enforcement Decree of the City Parks and Green Spaces, etc. [Internet]. Available : http://law.go.kr/.
  2. W. M. Lee, S. Y. Seo, and K. H. Lee, "The Influence of Urban Environment on the Happiness Level of the Residents: Focused on 25 Boroughs(gu) in Seoul," Journal of the Korea Academia-Industrialcooperation Society, vol. 17, no. 2, pp. 351-360, 2016. https://doi.org/10.5762/KAIS.2016.17.2.351
  3. J. G. Cha, E. H. Jung, J. W. Ryu, and D. W. Kim, "Constructing a Green Network and Wind Corridor to Alleviate the Urban Heat-Island," Journal of the Korean Association of Geographic Information Studies, vol. 10, no. 1, pp. 102-112, 2007.
  4. Google Earth [Internet]. Available : https://www.google.com/intl/ko/earth/.
  5. W. H. Jo, Y. H. Lim, and K. H. Park, "Deep learning based Land Cover Classification Using Convolutional Neural Network: a case study of Korea," Journal of the Korean Geographical Society, vol. 54, no. 1, pp. 1-16, 2019.
  6. Y. S. Youn, H. Y. Song, and H. J. Park, "Measurements of Green Space Ratio in Google Earth using Convolution Neural Network," Journal of the Korea Institute of Information and Communication Engineering, vol. 23, no. 2, pp. 347-350, 2019.
  7. C. Szegedy, S. Ioffe, V. Vanhoucke, and A. A. Alemi, "Inception-v4, inception-resnet and the impact of residual connections on learning," in Thirty-First AAAI Conference on Artificial Intelligence, San Francisco, pp. 4278-4284, 2017.
  8. J. H. Park, K. B. Hwang, H. M. Park, and Y. K. Choi, "Application of CNN for Fish Species Classification," Journal of the Korea Institute of Information and Communication Engineering, vol. 23, no. 1, pp. 39-46, 2019. https://doi.org/10.6109/JKIICE.2019.23.1.39
  9. R. Gomez, "Understanding Categorical Cross-Entropy Loss, Binary Cross-Entropy Loss, Softmax Loss, Logistic Loss, Focal Loss and all those confusing names," 2018. [Internet]. Available : https://gombru.github.io/2018/05/23/cross_entropy_loss.
  10. T. Tieleman, and G. Hinton, "RMSprop gradient optimization," 2014. [Internet]. Available : http://www.cs.toronto.edu/tijmen/csc321/slides/lecture_slid es_lec6.pdf.
  11. D. J. Kim, and P. L. Manjusha, "Building Detection in High Resolution Remotely Sensed Images based on Automatic Histogram-Based Fuzzy C-Means Algorithm," Asia-pacific Journal of Convergent Research Interchange, vol. 3, no. 1, pp. 57-62, Mar. 2017. https://doi.org/10.21742/apjcri.2017.12.11
  12. P. Helber, B. Bischke, A. Dengel, and D. Borth, "Eurosat: A novel dataset and deep learning benchmark for land use and land cover classification," IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, vol. 12, no. 7, pp. 2217-2226, 2019. https://doi.org/10.1109/JSTARS.2019.2918242