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Stereo Capture and Display At
Creation of a Complete Stereoscopic 3D Workflow for SoFA Allison Hettinger and Ian Krassner 1. Introduction 1.1 3D Trend Stereoscopic 3D motion pictures have recently risen to popularity once again following the success of films such as James Cameron’s Avatar. More and more films are being converted to 3D but few films are being shot in 3D. Current available technology and knowledge of that technology (along with cost) is preventing most films from being shot in 3D. Shooting in 3D is an advantage because two slightly different images are produced that mimic the two images the eyes see in normal vision. Many take the cheaper route of shooting in 2D and converting to 3D. This results in a 3D image, but usually nowhere near the quality as if the film was originally shot in 3D. This is because a computer has to create the second image, which can result in errors. It is also important to note that a 3D image does not necessarily mean a stereo image. 3D can be used to describe images that have an appearance of depth, such as 3D animations. Stereo images refer to images that make use of retinal disparity to create the illusion of objects going out of and into the screen plane. Stereo images are optical illusions that make use of several cues that the brain uses to perceive a scene. Examples of monocular cues are relative size and position, texture gradient, perspective and occlusion. These cues help us determine the relative depth positions of objects in an image. Binocular cues such as retinal disparity and convergence are what give the illusion of depth. -
Virtual Reality and Visual Perception by Jared Bendis
Virtual Reality and Visual Perception by Jared Bendis Introduction Goldstein (2002) defines perception as a “conscious sensory experience” (p. 6) and as scientists investigate how the human perceptual system works they also find themselves investigating how the human perceptual system doesn’t work and how that system can be fooled, exploited, and even circumvented. The pioneers in the ability to control the human perceptual system have been in the field of Virtual Realty. In Simulated and Virtual Realities – Elements of Perception, Carr (1995) defines Virtual Reality as “…the stimulation of human perceptual experience to create an impression of something which is not really there” (p. 5). Heilig (2001) refers to this form of “realism” as “experience” and in his 1955 article about “The Cinema of the Future” where he addresses the need to look carefully at perception and breaks down the precedence of perceptual attention as: Sight 70% Hearing 20% Smell 5% Touch 4% Taste 1% (p. 247) Not surprisingly sight is considered the most important of the senses as Leonardo da Vinci observed: “They eye deludes itself less than any of the other senses, because it sees by none other than the straight lines which compose a pyramid, the base of which is the object, and the lines conduct the object to the eye… But the ear is strongly subject to delusions about the location and distance of its objects because the images [of sound] do not reach it in straight lines, like those of the eye, but by tortuous and reflexive lines. … The sense of smells is even less able to locate the source of an odour. -
Intraocular Lenses and Spectacle Correction
MEDICAL POLICY POLICY TITLE INTRAOCULAR LENSES, SPECTACLE CORRECTION AND IRIS PROSTHESIS POLICY NUMBER MP-6.058 Original Issue Date (Created): 6/2/2020 Most Recent Review Date (Revised): 6/9/2020 Effective Date: 2/1/2021 POLICY PRODUCT VARIATIONS DESCRIPTION/BACKGROUND RATIONALE DEFINITIONS BENEFIT VARIATIONS DISCLAIMER CODING INFORMATION REFERENCES POLICY HISTORY I. POLICY Intraocular Lens Implant (IOL) Initial IOL Implant A standard monofocal intraocular lens (IOL) implant is medically necessary when the eye’s natural lens is absent including the following: Following cataract extraction Trauma to the eye which has damaged the lens Congenital cataract Congenital aphakia Lens subluxation/displacement A standard monofocal intraocular lens (IOL) implant is medically necessary for anisometropia of 3 diopters or greater, and uncorrectable vision with the use of glasses or contact lenses. Premium intraocular lens implants including but not limited to the following are not medically necessary for any indication, including aphakia, because each is intended to reduce the need for reading glasses. Presbyopia correcting IOL (e.g., Array® Model SA40, ReZoom™, AcrySof® ReStor®, TECNIS® Multifocal IOL, Tecnis Symfony and Tecnis SymfonyToric, TRULIGN, Toric IO, Crystalens Aspheric Optic™) Astigmatism correcting IOL (e.g., AcrySof IQ Toric IOL (Alcon) and Tecnis Toric Aspheric IOL) Phakic IOL (e.g., ARTISAN®, STAAR Visian ICL™) Replacement IOLs MEDICAL POLICY POLICY TITLE INTRAOCULAR LENSES, SPECTACLE CORRECTION AND IRIS PROSTHESIS POLICY NUMBER -
Stereo 3D (Depth) from 2D
Stereo 3D (Depth) from 2D • 3D information is lost by Viewing Stereo projection. Stereograms • How do we recover 3D Autostereograms information? Depth from Stereo Image 3D Model Depth Cues Shadows: Occlusions: Shading: Size Constancy Perspective Illusions (perspective): Height in Plane: Texture Gradient: 3D from 2D + Accommodation • Accommodation (Focus) • Change in lens curvature • Eye Vengeance according to object depth. • Effective depth: 20-300 cm. • Motion. • Stereo Accommodation Eye Vergence • Change in lens curvature • Change in lens curvature according to object depth. according to object depth. • Effective depth: 20-300 cm. • Effective depth: up to 6 m. Motion: Motion: Stereo Vision • In a system with 2 cameras (eyes), 2 different images are captured. • The "disparity" between the images is larger for closer objects: 1 disp ∝ depth • "Fusion" of these 2 images gives disparities depth information. Left Right Right Eye Left Eye Right Eye Left Eye Image Separation for Stereo • Special Glasses • Red/green images with red/green glasses. • Orthogonal Polarization • Alternating Shuttering Optic System Optic System Parlor Stereo Viewer 1850 Viewmaster 1939 ViduTech 2011 Active Shutter System Red/Green Filters Anaglyphs Anaglyphs How they Work Orthogonal Polarization Orthogonal Polarization Linear Polarizers: 2 polarized projectors are used (or alternating polarization) Orthogonal Polarization Orthogonal Polarization Circular Polarizers: Circular Polarizers: Left handed Right handed Orthogonal Polarization TV and Computer Screens Polarized Glasses Circular Polarizer Glasses: Same as polarizers – but reverse light direction Left handed Right handed Glasses Free TV and Glasses Free TV and Computer Screens Computer Screens Parallax Stereogram Parallax Stereogram Parallax Barrier display Uses Vertical Slits Blocks part of screen from each eye Glasses Free TV and Glasses Free TV and Computer Screens Computer Screens Lenticular lens method Lenticular lens method Uses lens arrays to send different Image to each eye. -
Fielmann Ag Company Report
MASTER IN FINANCE FIELMANN AG COMPANY REPORT EUROPEAN EYEWEAR RETAIL 4 JANUARY 2021 STUDENT: JAN-PHILIP JANSEN [email protected] Fashionable Glasses for Everyone Recommendation: BUY Fielmann Strengthens its Position in the Industry Price Target FY21: 79.01 € Price (as of 3-Jan-21) 66.45 € Our recommendation is to BUY Fielmann AG considering a Bloomberg: FIE target price of €79.01 as of 31.12.2021 reflected in an upside potential of 20.69% (thereof €1.19 expected dividend) to the current 52-week range (€) 41.90-76.25 Market Cap (€m) 5,581 share price of €66.45. Outstanding Shares (m) 84,000 Source: Thomson Reuters EIKON Market trends like an ever aging population, digitalization and industry consolidation set a solid foundation for further sustainable growth. We think Fielmann will be able to re-accelerate top-line growth back to 5%, achieved by a consistent realization of Fielmann’s corporate strategy “Vision 2025”. High Liquidity and strong Free Cash Flows provide sufficient funding for the renovation and internationalization Source: Yahoo Finance strategy. (Values in € millions) 2019 2020E 2021F The COVID-19 pandemic is currently the biggest threat for Revenues 1,524 1,385 1,556 the eyewear industry but at the same time a huge opportunity for EBITDA 410 328 382 EBIT 281 178 244 Fielmann due to its strong financial position. In contrast to other Capex 185 155 215 analysts, we expect Fielmann to be one of the post-crisis winners. FCF 126 118 68 Source: Annual Report 2019, Analyst Estimation We believe that the broad market might underestimate future profitabilty arising from further market consolidation. -
Dr. Juan Carlos Jácome Fernández
Title CAPTURING OF 3D CONTENT USING A SINGLE APERTURE CAMERA Name: Dr. Juan Carlos Jácome Fernández This is a digitised version of a dissertation submitted to the University of Bedfordshire. It is available to view only. This item is subject to copyright. CAPTURING OF 3D CONTENT USING A SINGLE APERTURE CAMERA By Juan Carlos Jácome Fernández A thesis submitted to the University of Bedfordshire in partial fulfilment of the requirements for the degree of Doctor of Philosophy October 2017 Abstract Integral imaging has recently re-emerged as an alternative to current 3D capturing systems, providing post-production refocusing capabilities and reducing the complexity of 3D capturing systems. One of the main drawbacks of conventional plenoptic 1 integral imaging systems is the implementation of a single custom made microlens array which has a fixed focal length and a high cost/low scalability associated with. This thesis demonstrates a variable focal length microlens arrays system, which can flexibly operate within a range of various focal lengths, increase the cost-effectiveness of the integral imaging system and offers the opportunity to manipulate the main camera optical parameters without modifying the objective lens settings. To validate the proposed concept, a custom-made integral imaging camera system was designed and built (IMPERX 4K system). Based on the results obtained from two initial optical simulations, software simulation and mathematical model; the suitable microlens arrays were acquired, and several experiments were performed to establish the feasibility of a variable focal length microlens arrays system. The results obtained show the proposed system performed as expected. The variable focal length system represents an ideal method to control microlens focal length, as it offers a higher microlens count, without a dedicated electronic system, whose performance is not susceptible to temperature-pressure changes and can operate in real-time as it does not require downtimes to re-adjust. -
Luxottica (Borsa Italiana: LUX)
Luxottica (Borsa Italiana: LUX) NOTE: ADRs also trade under “LUX” on the NYSE priced in U.S. Dollars Gross EBITDA EBIT 71% 71% 71% 70% 70% 69% 70% 68% 68% 68% 68% 66% 66% 66% 65% 66% 65% 65% 24% 23% 24% 21% 22% 21% 20% 20% 20% 20% 19% 19% 18% 18% 19% 18% 17% 17% 16% 17% 17% 16% 16% 16% 16% 15% 15% 15% 15% 14% 14% 14% 13% 13% TABLE OF CONTENTS DURABILITY 2 SINGULAR DILIGENCE MOAT 4 Geoff Gannon, Writer Quan Hoang, Analyst QUALITY 6 Tobias Carlisle, Publisher CAPITAL ALLOCATION 8 VALUE 11 Luxottica (Borsa Italiana: LUX) is a Global Maker and GROWTH 13 Seller of Sunglasses and Eyeglasses MISJUDGMENT 15 FUTURE 17 APPRAISAL 20 OVERVIEW NOTES 22 Luxottica is a vertically integrated eyewear company. Although founded in Italy, it now gets much of its sales and profits from the United States. And although founded as a part maker for prescription eyeglass frames (optical glasses) it now gets much of its sales and profits from sunglasses. The company can’t really be referred to as either a producer or a retailer. Luxottica is truly vertically integrated. Last year, 59% of the company’s sales came from its own stores. And much of the products sold in its own stores is produced by Luxottica itself. The two constants in Luxottica’s history have been the focus on eyewear and the leadership of Leonardo Del Vecchio. Luxottica gets 59% of its revenue from sales made in its own stores. Del Vecchio moved to Agordo, Italy in by distributing its own frames. -
Review of Stereoscopic 3D Glasses for Gaming
ISSN: 2278 – 1323 International Journal of Advanced Research in Computer Engineering & Technology (IJARCET) Volume 5, Issue 6, June 2016 Review of Stereoscopic 3D Glasses for Gaming Yogesh Bhimsen Joshi, Avinash Gautam Waywal sound cards and CD-ROMs had the multimedia Abstract— Only a decade ago, watching in 3-D capability. meant seeing through a pair of red and blue glasses. Early 3D games such as Alpha Waves, Starglider 2 It was really great at first sight, but 3-D technology began with flat-shaded graphics and then has been moving on. Scientists have been aware of progressed with simple forms of texture mapping how human vision works and current generation of such as in Wolfenstein 3D. computers are more powerful than ever before. In the early 1990s, the most popular method of Therefore, most of the computer users are familiar with 3-D games. Back in the '90s, most of the publishing games for smaller developers was enthusiasts were amazed by the game Castle shareware distribution, including then-fledgling Wolfenstein 3D, which took place in a maze-like companies such as Apogee which is now branded as castle, which was existed in three dimensions. 3D Realms, Epic MegaGames (now known as Epic Nowadays, gamers can enjoy even more complicated Games), and id Software. It enabled consumers the graphics with the available peripherals. This paper opportunity to try a trial portion of the game, which gives an overview of this 3-D Gaming technology and was restricted to complete first section or an episode various gaming peripherals. This paper will also of full version of the game, before purchasing it. -
Bharat Sevak Samaj
1 BHARAT SEVAK SAMAJ NATIONAL DEVELOPMENT AGENCY, PROMOTED BY GOVERNMENT OF INDIA CENTRAL BOARD OF EXAMINATIONS BSS NATIONAL VOCATIONAL EDUCATION MISSION AHE016-BSS DIPLOMA IN OPTOMETRY TWO YEARS (FIRST YEAR) EXAMINATION APRIL-2016 AHE016-01 COMMUNICATIVE ENGLISH AND COMPUTER FUNDAMENTALS TIME: 3 Hours Marks: 100 INSTRUCTIONS * 43 questions are there in total * Write answers to each question in proportion to the mark allotted * During the first 15 minutes read the questions carefully I. FILL IN THE BLANKS - ANSWER FOR ANY 10 QUESTIONS 1 x 10 = 10 1) Vowels are ...... in number 2) ..... Lotus is lovely flowers 3) I ....... seen the Tajmahal. 4) Basic working platform of the computer is the .............. 5) Function keys are ................. 6) The letters in computer application is called ............... 7) The expanded form of MS Word is......................... 8) -----------------is example for network operating system.(windows nt) 9) Basic working platform of the computer is ......... 10) ................. key is also used to select spelling command 11) In Ms Excel individual file is known as ............ 12) She is ............... B.sc graduate 13) The letters in computer application is called ............... 14) Who is the father of computer----------------- 15) I_______ eaten food. 2 II. DEFINE THE FOLLOWING - ANSWER FOR ANY 10 QUESTIONS 2 x 10 = 20 1) Define types of sentences? 2) Define collective noun? 3) Define kinds of adjectives? 4) Font 5) What is the difference between Notepad and Wordpad 6) computer 7) Briefly explain the table menu in MS Excel 8) Explain any five options for the format 'menu' 9) Word screen 10) Subordinate clause 11) Walking areas of computer? 12) What is URL? 13) Define Control unit? 14) What are Question tags? 15) Desk top III. -
Q1 2021 TRADING UPDATE Safilo's Q1 2021 Business Grows Compared to 2020 and 2019
Press release Q1 2021 Trading Update Q1 2021 TRADING UPDATE Safilo’s Q1 2021 business grows compared to 2020 and 2019: Net sales: +20.0% vs Q1 2020, +6.0% vs Q1 2019 (at constant exchange rates) Adjusted1 EBITDA: Euro 25.8 million, margin 10.3% (2.6% in Q1 2020, 8.1% in Q1 2019) Strong recovery of own and licensed brands, with the new brands in the portfolio effectively compensating the licenses terminated at the end of 2020 Strong growth of the online business, at 13% of the Group’s net sales Significant improvement in profitability driven by sales rebound and now leaner overheads and cost structure Padua, May 11, 2021 – The Board of Directors of Safilo Group S.p.A. has today reviewed and approved Q1 2021 economic and financial key performance indicators. Safilo’s Q1 2021 net sales reached Euro 251.4 million, up 20.0% at constant exchange rates compared to Q1 2020, the first to be hit by the outbreak of the Covid-19 pandemic. More meaningfully, Q1 2021 net sales also grew compared to the same quarter of 2019, up 6.0% at constant exchange rates, thanks to the strong performance of the Group’s own brands and core licenses, and to the significant contribution of the new brands in the portfolio effectively compensating the licenses terminated at the end of last year. The positive sales performance of the period was again largely driven by the United States and by a better than expected contribution from the newly acquired ecommerce business, which, coupled with the growth of Smith’s direct-to-consumer (D2C) channel, boosted Safilo’s total online business to 13% of its net sales from 5.9% in Q1 2020. -
Universita' Degli Studi Di Padova
UNIVERSITA’ DEGLI STUDI DI PADOVA DIPARTIMENTO DI SCIENZE ECONOMICHE ED AZIENDALI “M.FANNO” CORSO DI LAUREA MAGISTRALE IN BUSINESS ADMINISTRATION TESI DI LAUREA “MERGERS AND ACQUISITIONS AS A WAY TO CREATE VALUE: ANALYSIS OF THE ESSILOR-LUXOTTICA CASE AND HOW THE EYEWEAR INDUSTRY IS CHANGING” RELATORE: CH.MO PROF. ANDREA FURLAN LAUREANDA: FRANCESCA MARTINI MATRICOLA N. 1132489 ANNO ACCADEMICO 2017 – 2018 Il candidato dichiara che il presente lavoro è originale e non è già stato sottoposto, in tutto o in parte, per il conseguimento di un titolo accademico in altre Università italiane o straniere. Il candidato dichiara altresì che tutti i materiali utilizzati durante la preparazione dell’elaborato sono stati indicati nel testo e nella sezione “Riferimenti bibliografici” e che le eventuali citazioni testuali sono individuabili attraverso l’esplicito richiamo alla pubblicazione originale. Firma dello studente ________________ Un ringraziamento speciale va alla mia famiglia, per avermi supportato e permesso di arrivare fin qui, sempre sostenendomi e credendo in me, se oggi sono riuscita a raggiungere questo traguardo è grazie a loro. In particolare ringrazio mia madre per la forza e la determinazione che mi ha trasmesso nei momenti in cui mi stavo perdendo, il suo appoggio è stato fondamentale in questo percorso. Vorrei inoltre ringraziare il Professor Furlan Andrea, relatore di questa tesi, per avermi guidata nel percorso di stesura di questo lavoro, permettendomi di appassionarmi all’argomento giorno dopo giorno. Table of contents INTRODUCTION -
BBG Jan 2014
BlockBuster1213SK:Layout 1 12/18/13 11:08 AM Page 1 VOL. XXXIX NO. 1 JANUARY 2014 Practice Management and Purchasing Services for Independent Eye Care Professionals BBG Bottom Line Block Notes What’s Your Value Proposition? t’s the new year, with all of its hope and prom- hat sets you apart from the competition? Many eye care professionals will say Iise for greater productivity, efficiency and prof- Wthat it’s the quality of their products and professional services. So while you are itability before us. The Block Business Academy not trying to compete on price, it’s still important for you and your staff to under- by the Beach provides an opportunity to help stand how to articulate the value of the services and products you provide. you realize those goals with top-quality educa- Your optical dispensary provides continuity from the start of the process to tion for eye care professionals and staff mem- the end. Unlike a chain, the eye care professional or staff member who helps with bers. The continuing education covers clinical frame selection and measurements will likely be the one who dispenses the final eyewear. It is important to explain to patients that their measurements are cus- education as well as practice management Michael Block hours. In addition, Block Business Group ven- tomized and personalized at a higher level. You back up the product, and in fact, dors will be on hand with tremendous purchasing opportunities— provide free service for the useful life of the eyewear. and members have a chance to share business strategies in a There’s tremendous value in that kind of service—but that value must be made relaxing atmosphere.