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| DC 欄位 | 值 | 語言 |
|---|---|---|
| dc.contributor.advisor | 歐陽明 | |
| dc.contributor.author | Yu-Ju Tsai | en |
| dc.contributor.author | 蔡侑儒 | zh_TW |
| dc.date.accessioned | 2021-06-17T06:59:24Z | - |
| dc.date.available | 2020-08-05 | |
| dc.date.copyright | 2019-08-05 | |
| dc.date.issued | 2019 | |
| dc.date.submitted | 2019-08-05 | |
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Zhang, and Z. Xiong. Robust depth estimation for light field via spinning parallelogram operator. Comput. Vis. Image Underst., 145(C):148–159, Apr. 2016. 4, 17 [30] Y. Zhang, H. Lv, Y. Liu, H. Wang, X. Wang, Q. Huang, X. Xiang, and Q. Dai. Lightfield depth estimation via epipolar plane image analysis and locally linear embedding.IEEE Transactions on Circuits and Systems for Video Technology, 27(4):739–747, April 2017. 4 [31] H. Zhao, J. Shi, X. Qi, X. Wang, and J. Jia. Pyramid scene parsing network. In 2017 IEEE Conference on Computer Vision and Pattern Recognition (CVPR), pages 6230–6239, July 2017. 8 [32] T. Zhong, X. Jin, L. Li, and Q. Dai. Light field image compression using depth-based cnn in intra prediction. In ICASSP 2019 - 2019 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), pages 8564–8567, May 2019. 5 | |
| dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/72455 | - |
| dc.description.abstract | 在本論文中，我們使用深度學習來預測光場圖像的深度。光場相機可以同時拍攝一個場景的光線特性：包含空間以及角度。藉由拍攝到的這些資訊，我們可以去預估場景的深度。但是光場相機結構上圖像與圖像之間狹窄的baseline造成深度估計上面的困難，現在很多方法都想要解決這個硬體上面的限制，不過仍然需要在執行速度以及估計的準確率上面達到平衡。
因此，本論文考慮了光場圖像在資料上面的結構性以及圖像上的重複性，將這些特性的概念設計到我們的深度學習網路當中。再來我們提出了attention based sub-aperture view selection來讓網路自行學習哪一些圖像對於深度估計的貢獻是更大的，最後我們比較了在benchmark上和其他states of the art方法之間的比較，來顯示我們對於這個題目的改進。 | zh_TW |
| dc.description.abstract | In this paper, we introduce a light field depth estimation method based on a convolutional neural network. Light field camera can capture the spatial and angular properties of light in a scene. By using this property, we can compute depth information from light field images. However, the narrow baseline in light-field cameras makes the depth estimation of light field difficult. Many approaches try to solve these limitations in the depth estimation of the light field, but there is some trade-off between the speed and the accuracy in these methods.
We consider the repetitive structure of the light field and redundant sub-aperture views in light field images. First, to utilize the repetitive structure of the light field, we integrate this property into our network design. Second, by applying attention based sub-aperture views selection, we can let the network learn more useful views by itself. Finally, we compare our experimental result with other states of the art methods to show our improvement in light field depth estimation. | en |
| dc.description.provenance | Made available in DSpace on 2021-06-17T06:59:24Z (GMT). No. of bitstreams: 1 ntu-108-R06922009-1.pdf: 47396740 bytes, checksum: 7c2e046af6fb7865c89276fed2d81e69 (MD5) Previous issue date: 2019 | en |
| dc.description.tableofcontents | 誌謝ii
摘要iii Abstract iv 1 Introduction 1 2 Related Work 4 2.1 Traditional Methods 4 2.2 Deep Learning Methods 5 3 Method 7 3.1 Network Design 7 3.2 Feature Extraction and SPP module 8 3.3 Cost Volume Construction 9 3.4 Attention-based View Selection 9 3.5 3D CNN and Disparity Regression 10 4 Experiment 12 4.1 Training Dataset 12 4.1.1 4D Light Field Dataset 12 4.2 Implementation Detail 14 4.3 Quantitative Evaluation 15 4.4 Comparison to state-of-the-art methods 17 5 Conclusion 34 Bibliography 35 | |
| dc.language.iso | en | |
| dc.subject | 深度學習 | zh_TW |
| dc.subject | 光場 | zh_TW |
| dc.subject | 深度估計 | zh_TW |
| dc.subject | Light Field | en |
| dc.subject | Deep Neural Network | en |
| dc.subject | Disparity | en |
| dc.subject | Depth | en |
| dc.title | 使用深度學習預測光場圖像深度分布 | zh_TW |
| dc.title | Estimate Disparity of Light Field Images by Deep Neural Network | en |
| dc.type | Thesis | |
| dc.date.schoolyear | 107-2 | |
| dc.description.degree | 碩士 | |
| dc.contributor.oralexamcommittee | 莊永裕,葉正聖 | |
| dc.subject.keyword | 光場,深度學習,深度估計, | zh_TW |
| dc.subject.keyword | Light Field,Deep Neural Network,Disparity,Depth, | en |
| dc.relation.page | 39 | |
| dc.identifier.doi | 10.6342/NTU201900934 | |
| dc.rights.note | 有償授權 | |
| dc.date.accepted | 2019-08-05 | |
| dc.contributor.author-college | 電機資訊學院 | zh_TW |
| dc.contributor.author-dept | 資訊工程學研究所 | zh_TW |
| 顯示於系所單位： | 資訊工程學系 | |
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