以人工智慧模型修復超穎透鏡影像品質之研究

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姓名

黃晨輔(Chen-Fu Huang) 查詢紙本館藏

畢業系所

照明與顯示科技研究所

論文名稱

以人工智慧模型修復超穎透鏡影像品質之研究
(Research of improving metalens image base on artificial intelligence model)

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至系統瀏覽論文 (2025-8-17以後開放)

摘要(中)

在當今世界中，光學透鏡在我們的日常生活中佔據的很重要的地位，其廣泛的被運用在各種科技設備中，包括智慧型手機、自動駕駛傳感器和擴增實境(Augmented Reality, AR)及虛擬實境(Virtual Reality, VR)設備中，這些設備都有朝著更薄、更輕的消費電子產品的趨勢，創造了對光學元件不斷微型化的需求。然而，傳統的折射透鏡，如凸透鏡或凹透鏡材料，因為其體積龐大，嚴重阻礙了光學元件的微型化。而近年來，在次波長尺度上的奈米結構發展取得了顯著進展，對超穎表面的關注日益增加。這些奈米結構超穎表面利用集體共振來在奈米尺度上控制電磁波的特性，這一進展為創建微型光學元件展開了可能性。我們對超穎透鏡進行了光學特性的分析，並利用兩個連續的人工智能模型來解決超穎透鏡拍攝的影像中由於超穎透鏡的材料損耗和結構散射所導致的模糊與色偏問題。在人工智能模型這部分，我們分別使用自動編碼器和CodeFormer來校正色偏和重建影像細節。我們透過自動編碼器模型成功解決了所有面部影像的色偏，而CodeFormer模型則可以有效地重建了標準正面臉部、帶有臉部表情的面部細節和側面臉部影像，透過這樣的連續兩個人工智慧模型提升了超穎透鏡在日常生活的應用潛力。

摘要(英)

In today’s world, optical lenses play a vital role in our daily lives and are widely used in various technological devices, including smartphones, self-driving sensors, and augmented reality (AR) / virtual reality (VR) equipment. These devices are trending towards thinner and lighter consumer electronics, creating a demand for the continuous miniaturization of optical components. However, traditional refractive lenses, such as convex or concave materials, are bulky and severely hinder the miniaturization of optical components.
In recent years, there has been significant progress in the development of nanostructures on sub-wavelength scales, leading to a growing interest in metasurfaces. These nanostructured metasurfaces utilize collective resonances to control the characteristics of electromagnetic waves at the nano-scale, opening up possibilities for the creation of miniature optical components.
We conducted an analysis of the optical properties of the metasurface lens and used two sequential AI models to address the blurriness and color cast issues in images captured by the metasurface lens due to material loss and structural scattering of the metasurface lens. In terms of AI models, we used an Autoencoder and CodeFormer to correct color cast and reconstruct image details, respectively. We successfully addressed color cast in all facial images using the Autoencoder model, while the CodeFormer model effectively reconstructed standard frontal faces, facial expressions, and side profile images. Through these two sequential AI models, we have increased the potential for the application of metasurface lenses in daily life.

關鍵字(中)

★ 人工智慧模型
★ 超穎透鏡
★ 影像修復

關鍵字(英)

論文目次

摘要 i
Abstract ii
致謝 iii
目錄 iv
圖目錄 vi
表目錄 x
第1章緒論 1
1-1 研究背景 1
1-2 超穎透鏡文獻回顧 2
1-3 利用消色差修復影像技術回顧 6
1-4 研究動機 9
第2章基本原理 11
2-1 圖像修復技術綜述 11
2-2 基於人工智慧模型的圖像修復方法 20
2-2-1 自動編碼器深度學習模型簡介 24
2-2-2 CodeFormer深度學習模型簡介 26
2-2-3 不同神經網路的比較分析 27
第3章超穎透鏡影像拍攝與數據集處理 31
3-1 超穎透鏡影像拍攝 31
3-2 影像預處理 32
第4章人工智慧模型架設與訓練 35
4-1 自動編碼器神經網路架構 35
4-2 自動編碼器神經網路訓練策略 38
4-1 CodeFormer神經網路架構 41
第5章實驗成果 46
5-1 影像評估指標 46
5-2 恢復圖像與真實圖像視覺比較 55
第6章結論 57
參考文獻 58

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指導教授

王智明

審核日期

2023-8-21

推文