1,720,970 research outputs found
Jian zhu wu yi jing de san wei zhong jian
No full textTsui Ping Tim = 建築物埸景的三維重建 / 徐秉添.Thesis (M.Phil.)--Chinese University of Hong Kong, 2004.Includes bibliographical references (leaves 82-85).Text in English; abstracts in English and Chinese.Tsui Ping Tim = Jian zhu wu yi jing de san wei zhong jian / Xu Bingtian.Acknowledgement --- p.iiAbstract --- p.iiiTable of Content --- p.vChapter Chapter 1. --- Introduction --- p.1Chapter 1.1. --- A Brief Review on 3D Site Reconstruction --- p.1Chapter 1.2. --- Approach of the Project --- p.3Chapter 1.3. --- Organization of the Thesis --- p.4Chapter 1.3.1 --- The 3D Site Reconstruction --- p.4Chapter 1.3.2 --- The Conformal Point Theory --- p.5Chapter 1.4. --- Notations --- p.6Chapter Chapter 2. --- General System Overview --- p.7Chapter 2.1 --- Introduction --- p.7Chapter 2.2 --- Ground Reconstruction --- p.8Chapter 2.2.1 --- Planar Homography --- p.9Chapter 2.2.2 --- Determination of the Planar Homography --- p.10Chapter 2.3 --- Buildings and Cliff Reconstruction --- p.13Chapter 2.3.1 --- Correspondence Extraction --- p.14Chapter 2.3.2 --- Self-Calibration --- p.17Chapter 2.3.3 --- Extrinsic Parameters Estimation --- p.17Chapter 2.3.4 --- Scene Point Coordinates Computation --- p.18Chapter 2.3.5 --- Bundle Adjustment --- p.19Chapter 2.4 --- Object Assimilation --- p.19Chapter 2.5 --- Summary --- p.21Chapter Chapter 3. --- Camera Calibration --- p.22Chapter 3.1 --- Introduction --- p.22Chapter 3.2 --- Chapter Organization --- p.22Chapter 3.3 --- Brief Review of Camera Calibration --- p.23Chapter 3.4 --- Camera Intrinsic Parameters --- p.23Chapter 3.5 --- Difficulty of the Calibration Problem --- p.25Chapter 3.6 --- Non-automatic Calibration --- p.26Chapter 3.6.1 --- DLT --- p.26Chapter 3.6.2 --- Vanishing Points Approach --- p.26Chapter 3.6.3 --- Homography Approach --- p.28Chapter 3.7 --- Auto-Calibration --- p.29Chapter 3.7.1 --- Square Pixel with Known Principal Points --- p.30Chapter 3.7.2 --- Constant Camera Matrices --- p.31Chapter 3.8 --- Experiment --- p.33Chapter 3.8.1 --- Experimental Measurement --- p.33Chapter 3.8.2 --- Experimental Results --- p.34Chapter 3.9 --- Conclusion --- p.37Chapter Chapter 4. --- Bundle Adjustment --- p.38Chapter 4.1 --- Introduction --- p.38Chapter 4.2 --- Descent Direction and Gradient Method --- p.39Chapter 4.3 --- Problem Implementation --- p.40Chapter 4.4 --- Newton Method --- p.40Chapter 4.5 --- Gauss-Newton and Levenberg-Marquardt Method --- p.41Chapter 4.6 --- Linear Line Search --- p.43Chapter 4.7 --- Golden Section [38] --- p.44Chapter 4.8 --- Experiment --- p.47Chapter 4.9 --- Summary --- p.50Chapter Chapter 5. --- Site Reconstruction Review --- p.51Chapter 5.1. --- Introduction --- p.51Chapter 5.2. --- Chapter Organization --- p.51Chapter 5.3. --- Road Reconstruction --- p.51Chapter 5.4. --- Cliff Reconstruction --- p.54Chapter 5.5. --- Building Reconstruction --- p.56Chapter 5.6. --- Object Assimilation --- p.60Chapter 5.7. --- Gallery --- p.61Chapter 5.8. --- Application --- p.64Chapter Chapter 6. --- Conformal Point Theory --- p.65Chapter 6.1. --- Introduction --- p.65Chapter 6.2. --- Chapter Organization --- p.65Chapter 6.3. --- Hartley Conformal Point Theory --- p.66Chapter 6.3.1 --- Angle Measurement Making Use of the Conformal Point --- p.66Chapter 6.3.2 --- Position of the Conformal Point --- p.66Chapter 6.3.3 --- Proof of the Metric Measurement with the Conformal Point --- p.67Chapter 6.3.4 --- Limitation of Hartley's Theory --- p.69Chapter 6.4. --- The Discovery of Vanishing Line from 2 or More Images --- p.69Chapter 6.4.1 --- Parallax and Plane Stabilization --- p.70Chapter 6.4.2 --- Recovery of Vanishing Point by Ideal Plane Stabilization --- p.71Chapter 6.5 --- Determining the Infinite Homography and Angle Measurement --- p.73Chapter 6.5.1 --- "Four Corresponding Vanishing Points, 3 of which are of Orthogonal Directions" --- p.73Chapter 6.5.2 --- "Three Corresponding Orthogonal Point Pairs, and Known Epipoles" --- p.74Chapter 6.5.3 --- Known camera matrix and Four Distant Points --- p.74Chapter 6.6 --- Applications --- p.77Chapter 6.7 --- Conclusion --- p.77Chapter 6.8 --- Notes on Publication --- p.78Chapter Chapter 7. --- Conclusions --- p.79Chapter 7.1 --- Summary --- p.79Chapter 7.2 --- Conclusion and Future Work --- p.80Appendix A. References --- p.82Appendix B. Experiment Dataset --- p.86Chapter B.1. --- Introduction --- p.86Chapter B.2. --- Synthetic Dataset 1 (S1) --- p.87Chapter B.3. --- Synthetic Dataset 2 (S2) --- p.89Chapter B.4. --- Real Dataset 1 (Rl) --- p.91Chapter B.5. --- Real Dataset 2 (R2) --- p.92Chapter B.6. --- Real Dataset 3 (R3) --- p.93Appendix C. Mathematical Proof of Vanishing Line Detection by Infinite Plane Stabilization --- p.9
The viewpoints of Song poets on landscape ── A study based on “being picturesque” and “being poetic.”
No full text中國詩人與自然的關係向來頗為親近，自然也常成為詩人觀看與描寫的對象，而宋人在描寫所見的風景時，詩中常會流露「詩情畫意」的氣息，這反映宋代詩人是以詩、畫的視角來面對和把握風景的，文學與藝術在宋人筆下跨界交融，與自然風景構成可融攝、類比的關係。本文以宋詩為研究範圍，藉由分析詩作內容，期能了解宋代詩人在「如畫、如詩」的風景視角下，展現的風景、詩歌、繪畫與自我的關係。全文共六章，各章重點簡述如下： 第一章為緒論，說明研究動機、目的、範圍與方法，並梳理關於自然、繪畫與詩歌討論的相關文獻。 第二章為「如畫、如詩」風景視角的形成背景，先回顧宋以前的「如畫、如詩」觀，從中可見「如畫、如詩」的風景視角約在中晚唐成形，為宋代奠定了良好的基礎。接著討論宋代思想和文藝背景對「如畫、如詩」風景視角得以遍行宋代的影響，思想部分以理學為核心，兼論佛道；文藝部分著眼於與風景關係較為密切的山水畫和山水詩，透過一覽山水畫的發展概況及其與山水詩的交融互滲，探討繪畫與詩歌介入宋代詩人觀景視角的情形。 第三、四、五章皆以宋詩為基礎，透過解讀語言文字所提供的訊息，探究宋代詩人如何在詩中表現「如畫、如詩」風景視角的多種面向，由此再進一步分析這個觀看視角下，作者與自然、詩、畫的關係。 第三章和第四章主要從「如畫」的角度切入，分就「觀畫」和「入畫」兩個層次討論宋代詩人如何面對、把握和表現風景。「觀畫」部分在詩中的表現為「風景如畫、天開圖畫、難畫與勘畫」，「入畫」部分則為「畫我與欠我、我入畫中、我在畫中」。由觀到入，透露宋代詩人以全身心感知風景為畫後，渴望進入畫中，成為藝術品，與自然共構具有藝術美的圖繪世界。 第五章從「如詩」的角度切入，討論宋代詩人如何從詩的視角掌握風景，及其與詩人創作間的關連。內容分「山供秀句」和「滿眼新詩」兩部分，風景一方面以詩歌素材的形象展現在詩人眼前，為詩人送來詩材、詩料、詩本，引發詩人的詩興和靈感；一方面也以詩篇的形貌入於詩人之眼，使詩人能在各色自然物象組成的環境中目誦詩歌，感受風景散發的詩意。而視風景為詩句、詩歌也反映宋人具有詩畫一律和感官互通的共識。 第六章為結論，從前述多角度的文本分析裡，歸結宋代詩人面對風景的感受和想法，以及「如畫、如詩」的風景視角在宋代的定位與意義
Bragging On Twitter Is So Annoying: How CEOs’ Social Media Self-Presentation Strategy, Auditor Thinking Style, and Auditor Experience Influence Auditor Judgment
No full textFollowing the SEC formally adopting Twitter and Facebook as disclosure outlets, existing research shows that investors respond positively to CEOs’ use of social media such that CEOs can strategically use social media to influence stakeholder behavior. While such strategies may be intended for investors and customers, auditors could voluntarily or under firm direction, be following clients on social media and thus also be influenced. In an experiment with 359 auditors from a national accounting firm as participants, I examine whether CEOs’ self-presentation strategy of modesty or bragging on social media influences auditors’ inventory obsolescence judgments and whether such effect differs based on an auditors’ disposition towards intuitive or analytical thinking and their experience level. I provide evidence that CEOs who present themselves as modest (brag) elicit positive (negative) feelings from auditors. I show that analytical thinking auditors, more so than intuitive thinkers use those positive (negative) feelings as information in their judgments. However, this impact of emotions on analytical thinking only results in less efficient and lower quality judgments for more experienced auditors. This is because intuitive effectiveness relies on domain relevant knowledge which less experienced auditors lack and thus, their judgments are more influenced by CEOs social media behavior. My results contribute to the emerging auditing literature examining the effects of clients’ social media activity and impact of thinking styles on auditor judgment. My findings have important implications for audit firms and regulators as they consider policies regarding auditors’ use of social media and professional skepticism.Embargo status: Restricted until 06/2027. To request the author grant access, click on the PDF link to the left
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Blurred lines: How firm-level messaging impacts awareness of cultural differences during review of component auditors’ work
No full textAcademic research and regulatory inspection findings indicate issues with multinational audits, specifically related to lead auditors’ review and critical evaluation of the work of foreign component auditors. One factor that may be exacerbating this problem is the lead auditors’ lack of consideration of the vast difference in national culture of component auditors located outside of the U.S., which influences the subjective application of accounting firms’ global audit methodology, even within the same network. Cross-cultural differences between lead and component auditors in different countries potentially create challenges for firms aiming to achieve consistency in service and quality provided by global network firms. Recent communications by accounting firm leadership and regulators emphasize standardization of firm-level audit methodology/approaches to enhance consistency across the globe. This type of messaging approach could result in lead auditors overrelying on their firm’s in-network affiliate, causing them to be less aware of cultural differences and in turn produce an insufficient review of the work of the component auditor, especially when evidence exists that the subsidiary client’s reporting may include aggressive assumptions. Based on preliminary data collected, I find that firm-level messaging that places greater emphasis on distinction of network affiliates and less emphasis on global consistency lead auditors to make professional judgments that were more consistent with critical review of the component auditors’ work. Results from preliminary data collection suggest that awareness of cultural differences was not a significant mediator of the interactive effect of firm-level messaging and subsidiary reporting. This was potentially due to participants overlooking the description of culture in the experimental design, which will be more salient in future data collections
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Dispelling the Myths Behind First-author Citation Counts
Full text linkWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
- …
