本文選題：固態(tài)體積式真三維 + 人類視覺特性�。� 參考：《合肥工業(yè)大學(xué)》2017年博士論文

【摘要】：體顯示是目前實(shí)現(xiàn)真三維顯示的主流技術(shù)路徑之一,而靜態(tài)體積式顯示無任何移動部件,具有非常高的發(fā)展?jié)摿�。本文闡述了真三維顯示的視覺機(jī)理和顯示特性,研究并實(shí)現(xiàn)了海量顯示數(shù)據(jù)的高速實(shí)時(shí)處理方法;研究了深度抗鋸齒、灰度級修正、閃爍評價(jià)及優(yōu)化等真三維成像質(zhì)量的提升與優(yōu)化方法;完成了真三維顯示原型樣機(jī)的研制。本文的主要研究內(nèi)容包括:1)真三維顯示的視覺機(jī)理與成像分析。討論了視覺暫留、似動現(xiàn)象及人眼的空間與時(shí)間分辨率,這些視覺特性是形成真三維顯示的基礎(chǔ)。闡述了體素、顯示空間及真三維成像的原理和特點(diǎn),提出了“體柱”的概念。利用全光函數(shù)分析研究了真三維顯示的數(shù)據(jù)流量。相關(guān)視覺機(jī)理和成像基礎(chǔ)的研究,為真三維顯示系統(tǒng)的研究與設(shè)計(jì)提供了理論依據(jù)。2)海量顯示數(shù)據(jù)的高速實(shí)時(shí)處理方法研究與實(shí)現(xiàn)。分析了真三維顯示數(shù)據(jù)的處理流程,提出了體數(shù)據(jù)的生成和編碼傳輸方法。闡述了圖像預(yù)處理方法、圖像引擎的設(shè)計(jì)目標(biāo)和功能描述。深入研究了圖像引擎數(shù)據(jù)處理過程中的數(shù)據(jù)格式變換及地址映射方法,建立了相關(guān)的數(shù)學(xué)模型。在理論研究的基礎(chǔ)上提出了真三維圖像引擎的FPGA實(shí)現(xiàn)方法,實(shí)現(xiàn)了海量顯示數(shù)據(jù)的高速實(shí)時(shí)處理。3)真三維成像質(zhì)量提升和優(yōu)化方法研究。針對真三維顯示中由于顯示體結(jié)構(gòu)和光電特性等引起的各種顯示缺陷,在理論研究和實(shí)驗(yàn)驗(yàn)證的基礎(chǔ)上提出了一系列顯示質(zhì)量改善方法。針對深度不連續(xù)問題,提出了一種基于分類映射的深度抗鋸齒算法。提出了層間梯度的概念,分析了不同映射類型對于深度連續(xù)性的影響,給出了體素映射類型的判定算法。針對灰度級失真問題,在分析顯示體光電特性的基礎(chǔ)上推導(dǎo)出成像亮度變化函數(shù)及灰度級偏差。通過調(diào)整顯示體驅(qū)動時(shí)序及重新分配子幀,結(jié)合反伽馬校正,實(shí)現(xiàn)了灰度級的修正。針對真三維顯示的閃爍優(yōu)化問題,提出了一種時(shí)間對比敏感度函數(shù)加權(quán)幅值譜對比度的閃爍程度評價(jià)模型及一種層間交織掃描的顯示體刷新方法,完成了兩組視覺感知實(shí)驗(yàn),并通過統(tǒng)計(jì)分析驗(yàn)證了評估模型的準(zhǔn)確性和刷新方法的有效性。4)真三維顯示系統(tǒng)原型樣機(jī)的研制與實(shí)現(xiàn)。提出了真三維顯示系統(tǒng)的整體架構(gòu)方案,詳細(xì)論述了顯示數(shù)據(jù)處理電路、投影光路、顯示體及驅(qū)動等子系統(tǒng)的設(shè)計(jì)與裝配。重點(diǎn)闡述了DLP控制電路的數(shù)據(jù)接收和數(shù)字微鏡器件的復(fù)位時(shí)序設(shè)計(jì)、光路結(jié)構(gòu)和光源設(shè)計(jì)、顯示體光電特性和驅(qū)動方法設(shè)計(jì)。對系統(tǒng)的主要性能參數(shù)進(jìn)行了測試和評價(jià),并進(jìn)行了三維成像實(shí)驗(yàn)。結(jié)果表明,本文所研制的真三維顯示原型樣機(jī)整體性能達(dá)到國際先進(jìn)水平。本文所研制的真三維顯示原型樣機(jī)性能達(dá)到預(yù)期設(shè)計(jì)目標(biāo),同時(shí)在研制過程中掌握了具有自主知識產(chǎn)權(quán)的核心關(guān)鍵技術(shù),為體積式真三維顯示技術(shù)的理論研究和工程實(shí)踐積累了經(jīng)驗(yàn)并提供了重要的實(shí)物驗(yàn)證平臺。
[Abstract]:Display is currently one of the mainstream technology to achieve path true 3D display, while the static volume display without any moving parts, with very high development potential. This paper expounds the visual mechanism of true 3D display and display characteristics, research and implementation of a massive display of real-time data processing method of high speed; the depth of anti aliasing, the gray level correction, flicker evaluation and optimization of true 3D imaging quality improvement and optimization method; complete the true 3D display development prototype. The main research contents of this paper include: 1) and visual imaging machine analysis of true 3D display. Discuss the persistence of vision, like space and time resolution phenomenon and the human eye and these visual characteristics is the basis of true 3D display. It expounds the principle and characteristics of voxel, display space and real 3D imaging, puts forward the concept of "columns". By means of the optical function Analysis of data flow for true 3D display. Research on vision mechanism and imaging based on the true 3D display provides a theoretical basis for the research and design of.2 system) research and implementation of high speed real-time processing method of massive data display. Analysis of the true 3D display of data processing, the data generation and encoding transmission method are expounded. The method of image preprocessing, image engine design goal and function description. Further study of the image data processing engine in the process of data format conversion and address mapping method, the related mathematical model is established. On the basis of the theory proposed FPGA true 3D graphics engine, realized the mass showed high speed real-time processing of.3 data) really 3D imaging quality improvement and optimization method. According to the true 3D display as display body structure and photoelectric properties etc.. The various display defects, based on theoretical study and experimental verification of the proposed a series of methods to improve the display quality. Aiming at the depth discontinuities, an anti aliasing algorithm based on the depth of classification mapping is proposed. Put forward the concept of inter layer gradient, analyzes the different map types to influence depth continuity, are given the algorithm of determining the voxel mapping type. In order to solve the problem of gray level distortion, deduces the image brightness change function and gray level bias in the analysis based on the characteristics of photoelectric display. By adjusting the display driving timing and redistributing the sub frame, combined with the inverse gamma correction, the correction of gray level. Aiming at the optimization problem really flicker the three-dimensional display, a display time of contrast sensitivity function weighted amplitude spectrum evaluation flashness contrast model and a layer of interlaced scanning body refresh method, complete Two groups of visual perception experiment, and through statistical analysis verify the effectiveness of the.4 accuracy evaluation model and refresh method) for true 3D display development and implementation of the prototype system was put forward. The true 3D display scheme of the overall architecture of the system, discusses the display data processing circuit, optical projection, display design and assembly and drive subsystems. Focuses on the design of reset timing control circuit of the DLP data receiving and digital micromirror device, optical structure and light source design, display and driving method of photoelectric characteristics design. Testing and evaluation of the main performance parameters of the system, and the 3D imaging experiment. The results showed that the the true 3D display prototype overall performance reached the international advanced level. The development of true 3D display prototype performance to achieve the desired design goals, at the same time in the development of In the process, we have mastered the core technology with independent intellectual property rights, and accumulated experience for the theoretical research and engineering practice of volumetric true 3D display technology, and provided an important physical verification platform.

【學(xué)位授予單位】：合肥工業(yè)大學(xué)
【學(xué)位級別】：博士
【學(xué)位授予年份】：2017
【分類號】：TN27

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