研究生: |
王致平 Chih-Ping Wang |
---|---|
論文名稱: |
基於環境光之影片內容變化系統 A Luminance-based Video Content Adjustment System |
指導教授: |
楊傳凱
Chuan-Kai Yang |
口試委員: |
林伯慎
Bor-Shen Lin 孫沛立 Pei-Li Sun |
學位類別: |
碩士 Master |
系所名稱: |
管理學院 - 資訊管理系 Department of Information Management |
論文出版年: | 2017 |
畢業學年度: | 105 |
語文別: | 中文 |
論文頁數: | 22 |
中文關鍵詞: | Saliency 、Visual Saliency 、Denoise 、SSIM |
外文關鍵詞: | Saliency, Visual Saliency, Denoise, SSIM |
相關次數: | 點閱:177 下載:0 |
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隨著資訊科技的改變,多媒體檔案儲存、串流影音朝向雲端化發展;行動裝置的普及,人們都可透過手機觀看影片。然而,不論是雲端伺服器每月的數據使用量,或行動上網(3G、4G)的數據使用量,都有用量計價(Pay as You Go)的機制,或是頻寬限制,因而造成了許多不必要的成本及支出。
為此,本論文為解決上述問題,透過仔細的分析研究後,開發了一套「可以透過行動裝置偵測環境光,調整影像、影音串流的品質,進而達到節省用戶端、伺服器端的數據使用量」的系統。
最後,將本論文提出的方法,實作成伺服器應用程式與用戶端行動裝置應用程式,收集使用者的回饋,產生出對應該使用者當下環境光的品質的影片,讓使用者無法辨識出畫質的好壞,進而實現本論文的目的。
Technology advances have changed many things like multimedia storage and streaming video from local servers to cloud servers. After smart phones have become popular, people can use their phones to watch videoes. However, the network transfer service from the cloud is not unlimited, as it depends on how much you pay (Pay as You Go). Also, the mobile network transfer and speed are also limited. All of these make client users and service providers spend money to increase network transfer efficiency.
Thus, to solve the aforementioned problems, we did some study, and we proposed a system that can change video quality depending on luminance and decrease the network transfer usage accordingly.
Finally, we developed a system with the server application and the client application based on our proposed method. We collected user's feedback based on their current luminance, and generated a video with their feedback and the luminance. The users couldn't tell the difference between the original video and the adjusted one easily. As a result, we proved our methods, can help to reduce the amount of data transfer.
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