請用此 Handle URI 來引用此文件：
http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/69069完整後設資料紀錄
| DC 欄位 | 值 | 語言 |
|---|---|---|
| dc.contributor.advisor | 莊永裕(Yung-Yu Chuang) | |
| dc.contributor.author | Shih-Chieh Kuo | en |
| dc.contributor.author | 郭士傑 | zh_TW |
| dc.date.accessioned | 2021-06-17T02:50:13Z | - |
| dc.date.available | 2017-08-24 | |
| dc.date.copyright | 2017-08-24 | |
| dc.date.issued | 2017 | |
| dc.date.submitted | 2017-08-15 | |
| dc.identifier.citation | [1] C. Brown. Bringing pixels front and center in vr video, March 2017.https://www.blog.google/products/google-vr/bringing-pixels-front-and-centervr-video/.
[2] C.-W. Fu, L. Wan, T.-T. Wong, and C.-S. Leung. The rhombic dodecahedron map: An efficient scheme for encoding panoramic video. IEEE Transactions on Multimedia,11(4):634–644, 2009. [3] E. Kuzyakov and D. Pio. Next-generation video encoding techniques for 360 video and vr, January 2016. https://code.facebook.com/posts/1126354007399553/nextgeneration-video-encoding-techniques-for-360-video-and-vr/. [4] J. Lee, B. Kim, K. Kim, Y. Kim, and J. Noh. Rich360: Optimized spherical representation from structured panoramic camera arrays. ACM Trans. Graph., 35(4):63:1–63:11, July 2016. [5] L. Wan, T.-T. Wong, and C.-S. Leung. Isocube: Exploiting the cubemap hardware.IEEE Transactions on Visualization and Computer Graphics, 13(4):720–731, 2007. | |
| dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/69069 | - |
| dc.description.abstract | 本論文探討的問題是 360度影像投影方法的比較與分析，探討了理想的360度影像的投影需要什麼條件，以及五種投影方式的比較，有最常見的投影：equirectangular projection 以及 cubemap projection、Youtube提出的equi-angular cubemap projection、Facebook提出的pyramid projection 以及由CW Fu於2009提出的 rhombic dodecahedron projection，比較 360度影像經過五種投影之後，在與原圖的相似度、解碼時間上的表現以及在什麼情況下要選擇哪種投影方式。 | zh_TW |
| dc.description.abstract | This thesis evaluates the projection methods of the 360-degree image. We discuss what criteria should the ideal 360-degree image projection have and discuss five different projection methods, including the most common ways, equirectangular projection and cubemap projection, equi-angular cubemap projection proposed by Youtube, pyramid projection proposed by Facebook and the rhombic dodecahedron projection proposed by CW Fu. Comparing the decoded image performance on the decoding time and the similarity with input images and which projection method should be chosen in what circumstances so the viewer can get the best viewing quality. | en |
| dc.description.provenance | Made available in DSpace on 2021-06-17T02:50:13Z (GMT). No. of bitstreams: 1 ntu-106-R04922097-1.pdf: 34681797 bytes, checksum: 573f8426a41f223d68d32ff0fd7794fb (MD5) Previous issue date: 2017 | en |
| dc.description.tableofcontents | 誌謝 ii
摘要 iii Abstract iv 1 Introduction 1 2 Related Work 5 3 Projection Method 9 3.1 Ideal 360-degree projection 9 3.2 Equirectangular projection 10 3.3 Cubemap projection 11 3.4 Equi-angular cubemap projection 12 3.5 Pyramid projection 14 3.6 Rhombic dodecahedron projection 16 4 Experiment 18 4.1 Projection process 18 4.2 Experiment: Fixed storage 20 4.3 Experiment: Fixed decoding time 27 5 Conclusion 30 Bibliography 31 | |
| dc.language.iso | en | |
| dc.title | 360影像投影方法的比較 | zh_TW |
| dc.title | Evaluation of 360 Image Projection Methods | en |
| dc.type | Thesis | |
| dc.date.schoolyear | 105-2 | |
| dc.description.degree | 碩士 | |
| dc.contributor.oralexamcommittee | 吳賦哲(Fu-Che Wu),葉正聖(Jeng-Sheng Yeh) | |
| dc.subject.keyword | 360度影像,影像投影,效能分析,虛擬實境, | zh_TW |
| dc.subject.keyword | 360-degree image,image projection,performance analysis,virtual reality, | en |
| dc.relation.page | 31 | |
| dc.identifier.doi | 10.6342/NTU201703191 | |
| dc.rights.note | 有償授權 | |
| dc.date.accepted | 2017-08-15 | |
| 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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| 檔案 | 大小 | 格式 | |
|---|---|---|---|
| ntu-106-1.pdf 目前未授權公開取用 | 33.87 MB | Adobe PDF |
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