DOCSLIB.ORG

Geometric Calibration and Image Rectification of Inline Computational Imaging

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Geometric Calibration and Image Rectification of Inline Computational Imaging AIT Inline Computational Imaging: Geometric calibration and image rectification B. Blaschitz, S. Štolc and S. Breuss AIT Austrian Institute of Technology GmbH Center for Vision, Automation & Control Vienna, Austria www.ait.ac.at/hpv Blaschitz et al. – Geometric calibration and image rectification of Inline Computational Imaging INLINE COMPUTATIONAL IMAGING: WORKING PRINCIPLE Multi-line scan camera Camera IlluminationConstant illumination Inspected object Inspected object Transport stage Transport stage Scientific Vision Days 2018, 7-8 November | Stuttgart, Germany 2 Blaschitz et al. – Geometric calibration and image rectification of Inline Computational Imaging INLINE COMPUTATIONAL IMAGING: WORKING PRINCIPLE Multi-line scan camera Constant illumination Inspected object Transport stage Scientific Vision Days 2018, 7-8 November | Stuttgart, Germany 3 Blaschitz et al. – Geometric calibration and image rectification of Inline Computational Imaging AIT ICI LIGHT FIELD: MULTIPLE VIEWING & ILLUMINATION ANGLES y Scientific xVision Days 2018, 7-8 November | Stuttgart, Germany pin grid array Blaschitz et al. – Geometric calibration and image rectification of Inline Computational Imaging AIT INLINE COMPUTATIONAL IMAGING: INDUSTRIAL USE CASES Metal parts Electronic parts Product packaging Coins Printed circuit boards Measurement Security print / OVD 1064μm 2381μm 5 Scientific Vision Days 2018, 7-8 November | Stuttgart, Germany Blaschitz et al. – Geometric calibration and image rectification of Inline Computational Imaging ICI SOFTWARE MODULES FOR 2D/3D TASKS Acquisition Stereo matching Coarse refinement . Light field data . High speed . Fast discrete acquisition multi-view / depth . Camera, light field denoising / illumination, stereo regularization and transport matching preserving control discontinuities Refined 2D/3D data ICI Sensor System . Fine depth model . Camera (depth map, point . Rectification Feature extraction Fine refinement Illumination cloud) . Transport stage . Depth measurement . Camera lens . Extraction of . Fast continuous confidence undistortion & robust image depth / . Refined 2D texture rectification features regularization images . Transport . Extraction of . Fusion with (all-in-focus, gloss / misalignment local surface additional depth shadow suppression) correction features cues . Fine 2.5D surface map Scientific Vision Days 2018, 7-8 November | Stuttgart, Germany 6 Blaschitz et al. – Geometric calibration and image rectification of Inline Computational Imaging MODELLING SKEW TRANSPORT Linescan image n (x3,y3) Line 1 Sensor (x2,y2) v Line n u (x1,y1) v u Linescan Lens time image 1 Input Image Stack Corresponding points in different linescan images have different u-coordinate Goal: Rectified Image Stack (for easier matching) where transport appears aligned Transport direction Scientific Vision Days 2018, 7-8 November | Stuttgart, Germany 7 Blaschitz et al. – Geometric calibration and image rectification of Inline Computational Imaging GOAL: RECTIFIED IMAGE STACK (FOR EASIER MATCHING) WHERE TRANSPORT APPEARS ALIGNED Corresponding points in different linescan images should have same u-coordinate Rectification . Camera lens undistortion & uncalibrated calibrated rectification . Transport misalignment correction Scientific Vision Days 2018, 7-8 November | Stuttgart, Germany 8 Blaschitz et al. – Geometric calibration and image rectification of Inline Computational Imaging CALIBRATION PRINCIPAL Transport direction x‘ t=(t1,t2,t3) v u I v u c Focal length f Sensor plane Camera center Scientific Vision Days 2018, 7-8 November | Stuttgart, Germany 9 Blaschitz et al. – Geometric calibration and image rectification of Inline Computational Imaging VIRTUAL IMAGE PLANE I‘ x‘ x‘‘ t=(t1,t2,t3) v u H Coordinate system of new image plane I’ I‘ v‘ u‘ c‘ Parallel to transport direction f Minimal rotation Same distance to camera center Scientific Vision Days 2018, 7-8 November | Stuttgart, Germany 10 Blaschitz et al. – Geometric calibration and image rectification of Inline Computational Imaging VIRTUAL IMAGE PLANE Project sensor lines x‘ x‘‘ t=(t1,t2,t3) v v‘ u u‘ H I‘ Homography from I to I’ v‘ u‘ c‘ f Scientific Vision Days 2018, 7-8 November | Stuttgart, Germany 11 Blaschitz et al. – Geometric calibration and image rectification of Inline Computational Imaging VIRTUAL IMAGE PLANE Resample in I’ x‘‘ x‘‘‘ Equal u’-coordinates H R x‘‘‘ x‘‘ v‘ Equidistant spacing u‘ Scientific Vision Days 2018, 7-8 November | Stuttgart, Germany 12 Blaschitz et al. – Geometric calibration and image rectification of Inline Computational Imaging VIRTUAL IMAGE PLANE Pull back to I x‘‘‘ x‘‘‘‘ x‘ t=(t1,t2,t3) v u H R H-1 I v I‘ v‘ u u‘ c c‘ f f Scientific Vision Days 2018, 7-8 November | Stuttgart, Germany 13 Blaschitz et al. – Geometric calibration and image rectification of Inline Computational Imaging VIRTUAL IMAGE PLANE Interpolate color values x‘‘‘ x‘‘‘‘ x‘ v u H R H-1 M(u,v) is the color value at position (u,v) (u-1,v) (x‘‘‘‘,v) x=(u,v) 1 - s s v u Scientific Vision Days 2018, 7-8 November | Stuttgart, Germany 14 Blaschitz et al. – Geometric calibration and image rectification of Inline Computational Imaging CALIBRATION IMPROVES STEREO MATCHING Acquisition Stereo matching Coarse refinement . Light field data . High speed . Fast discrete acquisition multi-view / depth . Camera, light field denoising / illumination, stereo regularization and transport matching preserving control discontinuities Refined 2D/3D data ICI Sensor System . Fine depth model . Camera (depth map, point . Rectification Feature extraction Fine refinement Illumination cloud) . Transport stage . Depth measurement . Camera lens . Extraction of . Fast continuous confidence undistortion & robust image depth / . Refined 2D texture rectification features regularization images . Transport . Extraction of . Fusion with (all-in-focus, gloss / misalignment local surface additional depth shadow suppression) correction features cues . Fine 2.5D surface map Scientific Vision Days 2018, 7-8 November | Stuttgart, Germany 15 Blaschitz et al. – Geometric calibration and image rectification of Inline Computational Imaging IMPROVED CORRESPONDENCE ANALYSIS Stereo matching . High speed multi-view / light field stereo matching … Refined 2D/3D data . Fine depth model Rectification Feature extraction (depth map, point cloud) . Depth measurement . Camera lens . Extraction of confidence undistortion & robust image . Refined 2D texture rectification features images . Transport . Extraction of (all-in-focus, gloss / misalignment local surface shadow suppression) correction features . Fine 2.5D surface map Scientific Vision Days 2018, 7-8 November | Stuttgart, Germany 16 Blaschitz Blaschitz et al. Scientific Vision Days 2018, 7 SCENE – Geometriccalibration and image rectification of Inline Computational Imaging COMPARISON - 8 November | Stuttgart, Germany Reconstructed z value after depth denoising Maximal pixel intensity Uncalibrated – IMAGE GRADIENT Reconstructed z value after depth denoising Maximal pixel intensity Calibrated 17 Blaschitz et al. – Geometric calibration and image rectification of Inline Computational Imaging SCENE COMPARISON – 3D RECONSTRUCTION Uncalibrated Calibrated 18 Scientific Vision Days 2018, 7-8 November | Stuttgart, Germany Blaschitz et al. – Geometric calibration and image rectification of Inline Computational Imaging EXAMPLE: STAIRCASE – INPUT LIGHTFIELD STACK CAD model of the 3d printed model staircase (print tolerance approx. 0.0615mm) Scientific Vision Days 2018, 7-8 November | Stuttgart, Germany 19 Blaschitz et al. – Geometric calibration and image rectification of Inline Computational Imaging EXAMPLE: STAIRCASE – 3D RECONSTRUCTION Distance from camera center Height difference of two steps Scientific Vision Days 2018, 7-8 November | Stuttgart, Germany 20 Blaschitz et al. – Geometric calibration and image rectification of Inline Computational Imaging EXAMPLE: EURO CENT COINS – IMAGE STACK 10 Euro Cent coin 2 Euro Cent coin Diameter 19.75mm Diameter 18.75mm Thickness 1,93mm Thickness 1,67mm Scientific Vision Days 2018, 7-8 November | Stuttgart, Germany 21 Blaschitz et al. – Geometric calibration and image rectification of Inline Computational Imaging EXAMPLE: EURO CENT COINS - UNCALIBRATED Scientific Vision Days 2018, 7-8 November | Stuttgart, Germany 22 Blaschitz et al. – Geometric calibration and image rectification of Inline Computational Imaging EXAMPLE: EURO CENT COINS - CALIBRATED Scientific Vision Days 2018, 7-8 November | Stuttgart, Germany 23 Blaschitz et al. – Geometric calibration and image rectification of Inline Computational Imaging EXAMPLE: EURO CENT COINS – ERROR MEASURE Scientific Vision Days 2018, 7-8 November | Stuttgart, Germany 24 Blaschitz et al. – Geometric calibration and image rectification of Inline Computational Imaging TAKE-HOME MESSAGE New calibration method turns AIT‘s Inline Computational Imaging system, which uses a single multi-line scan camera to generate 3d light field stacks into • a measurement device in µm-scale • at industrial inline production speed For industrial applications, scientific work and our patents visit www.ait.ac.at/hpv High speed transport Scientific Vision Days 2018, 7-8 November | Stuttgart, Germany 25 Blaschitz et al. – Geometric calibration and image rectification of Inline Computational Imaging THANK YOU FOR YOUR ATTENTION! Bernhard Blaschitz [email protected] 26.
Load more

Recommended publications
  • Ertising in Science in School · Choose Between Advertising in the Quarterly Print Journal Or on Our Website
    How many schools Spring 2011 Issue 18 and teachers do you reach – worldwide? In this issue: Biomimetics: clingy as an octopus or slick as a lotus leaf? Also: News from the EIROs: Mars, snakes, robots and DNA Advertising in Science in School · Choose between advertising in the quarterly print journal or on our website. · Website: reach over 30 000 science educators worldwide – every month. · In print: target up to 15 000 European science educators every quarter, including 3000 named subscribers. · Distribute your flyers, brochures, CD-ROMs or other materials either to 3000 named subscribers or to all recipients of the print copies. For more details, see www.scienceinschool.org/advertising Published by EIROforum: I S S N : 1 Initially supported by 8 1 Subscribe (free in Europe): www.scienceinschool.org 8 the European Union: - Highlighting the best in science teaching and research 0 3 5 3 sis_18_RZ_.qxq:Layout 1 15.03.2011 18:08 Uhr Seite B About Science in School Science in School promotes inspiring science teaching by encouraging communication between Editorial teachers, scientists and everyone else involved in European science education. The journal addresses science teaching both across Europe and across disciplines: highlighting the best in teaching and cutting-edge research. It covers not only biology, physics and chemistry, but also earth sciences, engineering and medicine, Happy birthday, focusing on interdisciplinary work. The contents include teaching materials; cutting-edge science; interviews with young scientists and inspiring Science in School! teachers; reviews of books and other resources; and European events for teachers and schools. Science in School is published quarterly, both online his issue of Science in School is rather special: it’s now and in print.
    [Show full text]
  • The Road to the Euro
    One currency for one Europe The road to the euro Ecomomic and Financial Aff airs One currency for one Europe The road to the euro One currency for one Europe The road to the euro CONTENTS: What is economic and monetary union? ....................................................................... 1 The path to economic and monetary union: 1957 to 1999 ............... 2 The euro is launched: 1999 to 2002 ........................................................................................ 8 Managing economic and monetary union .................................................................. 9 Looking forward to euro area enlargement ............................................................ 11 Achievements so far ................................................................................................................................... 13 The euro in numbers ................................................................................................................................ 17 The euro in pictures .................................................................................................................................... 18 Glossary ........................................................................................................................................................................ 20 2 Idreamstock © One currency for one Europe The road to the euro What is economic and monetary union? Generally, economic and monetary union (EMU) is part of the process of economic integration. Independent
    [Show full text]
  • Poland Without the Euro a Cost Benefit Analysis 2 Polityka Insight Poland Without the Euro Index
    Poland without the euro A cost benefit analysis 2 Polityka Insight Poland without the euro Index EXECUTIVE SUMMARY 2 1. POLAND’S INTEGRATION WITHIN THE EURO AREA – THE CONTEXT 6 How to adopt the common currency? 8 Survey of social opinions and political positions on euro adoption 14 Analysis of probability of euro being introduced in Poland by 2030 15 2. COSTS OF DELAYING EURO ADOPTION 16 Measurable costs 17 Potential costs 21 Non-measurable costs 25 3. BENEFITS OF DELAYING EURO ADOPTION 28 Measurable benefits 29 Potential benefits 30 Non-measurable benefits 37 4. BALANCE OF COSTS AND BENEFITS OF DELAYING EURO ADOPTION 40 Balance of measurable effects 41 Balance of potential costs and benefits 42 Balance of non-measurable costs and benefits 45 SUMMARY 47 REFERENCES 49 A cost benefit analysis Polityka Insight 1 Executive summary This report deals with the question of adopting the euro in Poland. It differs from previous such works in two respects. First, our ques- tion is not “should Poland adopt the euro?” as the EU Treaties oblige all Member States who joined the EU after the Maastricht Treaty came into force to join the eurozone. Hence, we focus on the implications of Poland's decision to delay its adoption of the common currency. Second, in contrast to previous studies we distinguish between different types of costs and benefits – we identify those which are measurable, those which are po- tential and those which are non-measurable, i.e. are of socio-political nature. In our view such a distinction is required to assess the effects of adopting the euro on the Polish economy in a way which incorporates the possible differenc- es in the preferences of decision-makers and public opinion.
    [Show full text]
  • Information Guide Economic and Monetary Union
    Information Guide Economic and Monetary Union A guide to the European Union’s Economic and Monetary Union (EMU), with hyperlinks to sources of information within European Sources Online and on external websites Contents Introduction .......................................................................................................... 2 Background .......................................................................................................... 2 Legal basis ........................................................................................................... 2 Historical development of EMU ................................................................................ 4 EMU - Stage One ................................................................................................... 6 EMU - Stage Two ................................................................................................... 6 EMU - Stage Three: The euro .................................................................................. 6 Enlargement and future prospects ........................................................................... 9 Practical preparations ............................................................................................11 Global economic crisis ...........................................................................................12 Information sources in the ESO database ................................................................19 Further information sources on the internet .............................................................19
    [Show full text]
  • VANISHING ACT: the Eurogroup's Accountability
    VANISHING ACT: The Eurogroup’s accountability Benjamin Braun and Marina Hübner Editor: Leo Hoffmann-Axthelm Transparency International EU is part of the global anti-corruption movement, Transparency International, which includes over 100 chapters around the world. Since 2008, Transparency International EU has functioned as a regional liaison office for the global movement and as such it works closely with the Transparency International Secretariat in Berlin, Germany. Transparency International EU leads the movement’s EU advocacy, in close cooperation with national chapters worldwide, but particularly with the 24 national chapters in EU Member States. Transparency International EU’s mission is to prevent corruption and promote integrity, transparency and accountability in EU institutions, policies and legislation. www.transparency.eu Title: VANISHING ACT: the Eurogroup’s accountability Authors: Benjamin Braun and Marina Hübner, Max Planck Institute for the Study of Societies, Cologne Editor: Leo Hoffmann-Axthelm, Transparency International EU, Brussels Cover photo: © European Union / beëlzepub Page 39: © aesthetics of crisis Page 6: © European Union Page 41: © The Council of the European Union Page 11: © The Council of the European Union Page 43: © The Council of the European Union Page 16: © Didier Weemaels Page 45: © NASA Page 22: © European Union Page 47: © Governo Italiano Page 24: © Maryna Yazbeck Page 49: © The Council of the European Union Page 25: © aesthetics of crisis Page 52: © European Union Page 26: © The Council of the European Union Page 54: © The Council of the European Union Page 28: © Leo Hoffmann-Axthelm Page 57: © European Parliament Page 35: © Marylou Hamm Page 58: © Jordan Whitfield Page 38: © jeffowenphotos Page 61: © Alice Pasqual Design: www.beelzePub.com Every effort has been made to verify the accuracy of the information contained in this report.
    [Show full text]
  • Lutra Lutra) in the MERCURE-LAO RIVER VALLEY, SOUTH ITALY GIOVANNI N
    Preprints (www.preprints.org) | NOT PEER-REVIEWED | Posted: 3 July 2019 doi:10.20944/preprints201907.0054.v1 Roviello, GN & Roviello, V RECENT RECORDS OF THE EURASIAN OTTER (Lutra lutra) IN THE MERCURE-LAO RIVER VALLEY, SOUTH ITALY GIOVANNI N. ROVIELLO*a and VALENTINA ROVIELLOb aIstituto di Biostrutture e Bioimmagini – Consiglio Nazionale delle Ricerche, Naples, Via Mezzocannone 16, I-80134, Italy bUniversity of Naples Federico II, Analytical Chemistry for the Environment and CeSMA (Centro Servizi Metereologici Avanzati), Corso N. Protopisani, 80146, Naples, Italy *Corresponding author. [email protected] Abstract Here we report recent evidence of the presence of Eurasian otter (Lutra lutra) in the Mercure-Lao River valley, an area of great ecological interest situated in South Italy for which the last otter reports referred to spraints collected in 2002. This work contains information and a selection of photographs of otter footprints and spraints found from October 2005 to January 2019, and photographs of both a cub and an adult otter from the Mercure-Lao River area. Keywords: Eurasian otter; Lutra lutra; Italian population; Mercure-Lao River INTRODUCTION The population of the Eurasian otter (Lutra lutra) in Italy is less than 300 adult individuals (Prigioni et al., 2006) occurring in the Southern part, mainly Basilicata, Calabria, Campania and Puglia regions. Here a larger population exists, while a smaller number is found in the Abruzzo and Molise regions (Balestrieri et al., 2016). Recent records of otters in Northern Italy (Balestrieri et al., 2016) were attributed to individuals probably originating from Austria and Slovenia. This is of great interest from the point of view of a possibile otter recolonisation there.
    [Show full text]
  • IOSF Journal Vol5 2019.Pdf
    ISSN 2520-6850 = OTTER (Broadford) The International Otter Survival Fund (IOSF) was inspired by observing otters in their true natural environment in the Hebrides. Because the otter lives on land and in the water and is at the peak of the food chain it is an ambassador species to a first class environment. IOSF was set up in 1993 to protect and help the 13 species of otter worldwide, through a combination of compassion and science. It supports projects to protect otters, which will also ensure that we have a healthy environment for all species, including our own. OTTER is the annual scientific publication of the IOSF. The publication aims to cover a broad spectrum of papers, reports and short contributions concerning all aspects of otter biology, behaviour, ecology and conservation. It will also contain information on the work of IOSF and reports on our activities. Submission of manuscripts OTTER is a peer-reviewed journal and authors are asked to refer to the Guidelines for Contributors before submitting a paper. These Guidelines may be found at the back of each Journal or can be sent as a pdf upon request. Papers should be submitted through [email protected]. Publication A limited number of copies of the Journal will be printed and these will be available for sale on the Ottershop (www. ottershop.co.uk). It will also be made available on the IOSF website (www.otter.org) Back Issues Issue 1 (Proceedings of the First Otter Toxicology Conference, Published 2002) is now out of print. Issue 2 (Proceedings of the European Otter Conference “Return of the Otter in Europe – Where and How?”, held on the Isle of Skye in 2003, Published 2007) is available on a CD at the Ottershop (www.ottershop.co.uk).
    [Show full text]
  • The Euro: Outcome and Element of the European Identity1
    The Euro: Outcome and Element of the European Identity1 Thierry Vissol2 European Union Fellow Yale Center for International & Area Studies Writing about money is always a challenge. Neither economists nor historians specialized in monetary matters agree on its definition. Money itself is a long and fascinating subject with institutional, political, social, technical, symbolic, and psychological dimensions. This multidimensional aspect of money, which was commonly accepted during the nineteenth century and until World War II, re-emerged clearly during the changeover to the Euro, after economists had reduced its role to its sole macro-economic and financial dimension for more than half a century. By focusing on the various dimensions of money and guiding the reader on a historical monetary tour of Europe, this paper aims to illustrate how, both consciously and unconsciously3, the European nation states drew upon the roots of their common civilization to build a single currency as part of their new common identity. The paper will discuss these bi-univocal links between money and European identity, and will analyze the historical roots of the choice of name and symbol for this new currency, as well as the design of its banknotes and coins. It is necessary, however, to begin with a preliminary discussion of the following two questions: 1 - Is there a European identity? 2 - When was Europe? Why proceed in this fashion? By briefly answering these two questions, we can define two European characteristics, which, from my point of view as one of many participants in this adventure, were of utmost importance to the creation of the European Union and the project of monetary unification.
    [Show full text]
  • Europe: Teachers' Guide
    Europe Teachers’ guide European Union The symbols in the boxes stand for the following: ! Information ? Solution * Recommendations This teachers’ guide and Europe. A journal for young people are available online at: http://europa.eu/teachers-corner/index_en.htm http://bookshop.europa.eu European Commission Directorate-General for Communication Publications 1049 Brussels BELGIUM Manuscript finalised in November 2014 Text: Eckart D. Stratenschulte, European Academy, Berlin The publication ‘Europa. Das Lehrerheft zum Jugendmagazin’ was originally published in Germany by ‘aktion europa’ (federal government, European Parliament, European Commission). It has been revised and updated by the European Commission’s Directorate-General for Communication. The original layout was designed by the Zeitbild Verlag und Agentur für Kommunikation, Berlin/MetaDesign AG, Berlin. The series of pictures featuring the young people Alice, Jeanette, Jello, Motian and Patricia was also created by Zeitbild. Luxembourg: Publications Office of the European Union, 2014 Print: doi:10.2775/36219 ISBN 978-92-79-40263-0 PDF: doi:10.2775/3047 ISBN 978-92-79-40240-1 12 pp. — 21 × 29.7 cm © European Union, 2014 Reproduction is authorised. For any use or reproduction of individual photos, permission must be sought directly from the copyright holders. NA-04-14-842-EN-N 2 | Europe: Teachers’ guide 1. Europe in everyday life The objective of this chapter is to familiarise students with the extent to which the European Union features in their everyday lives. The aim is to generate curiosity about the EU. ! How far away is ‘Brussels’? p. 5 ? Education and study in other EU countries p. 8 The European Commission conducts twice-yearly opinion polls to Your students will doubtless come up with reasons for and against find out what EU citizens think about European matters.
    [Show full text]
  • Official Minting and Circulation of Euro Coins, Date 2002
    Decree No. 58 of 24 April, 2001 R EPUBLIC OF SAN MARIN O Official Minting and Circulation of Euro Coins, Date 2002 UNOFFICIAL TEXT NOTICE It is not an official text, and the Central Bank of the Republic of San Marino assumes no liability for any errors or omissions. The official text of the Laws of the Republic of San Marino can be found in the Bollettino Ufficiale or on the Internet website, www.consigliograndeegenerale.sm. Art. 1 In conformity with the provisions contained in the Monetary Convention mentioned above, the striking of Euro coins having the characteristics referred to in Article 2 is hereby authorised. Art. 2 Such coins, being legal tender in the territory of the Republic of San Marino and in that of the European Community Member States that have adopted the Euro, shall meet the specifications given for Euro coins by the Council of the European Union; the artistic features are defined as follows: 2 Euro coin Obverse: ringed by twelve stars, the Public Building; on the left, the date 2002 and the letter R; on the right, the inscription SAN MARINO and the author’s initials CH. Reverse: on the left, the value 2; on the right, six vertical lines with twelve superimposed stars, each star placed before the ends of each line; in the middle of such lines, a reproduction of the European Union with thinly marked borders between the Member States; in the middle of the right-hand side, the inscription EURO is placed horizontally; below the O letter of EURO, the author’s initials LL, with superimposed letters.
    [Show full text]
  • For Review Only 19 31 European Countries
    See discussions, stats, and author profiles for this publication at: https://www.researchgate.net/publication/318343897 Fair Trade Milk Initiative in Belgium: Bricolage as an Empowering Strategy for Change: Fair trade milk initiative in Belgium Article in Sociologia Ruralis · July 2017 DOI: 10.1111/soru.12174 CITATIONS READS 14 176 3 authors, including: Pierre M Stassart François Mélard University of Liège University of Liège 51 PUBLICATIONS 782 CITATIONS 16 PUBLICATIONS 92 CITATIONS SEE PROFILE SEE PROFILE Some of the authors of this publication are also working on these related projects: LPTransition View project Livestock farming system View project All content following this page was uploaded by Pierre M Stassart on 09 August 2018. The user has requested enhancement of the downloaded file. Sociologia Ruralis Fair trade milk initiative in Belgium: bricolage as an empowering strategy for change Journal:For Sociologia Review Ruralis Only Manuscript ID SORU-16-063.R2 Manuscript Type: Special Issue Paper dairy system, bricolage, ambiguity, lock-in, multi-level perspective, fair Keywords: trade Page 1 of 31 Sociologia Ruralis 1 2 3 4 1 “Fair trade milk initiative in Belgium: bricolage as an empowering strategy for 5 2 change” 6 7 3 8 9 4 Abstract: 10 11 12 5 In a context of multiple crises, dairy farmers struggle to receive a fair remuneration for their 13 14 6 work. This situation led to the creation of fair milk projects in Europe. But fair trade projects 15 16 7 often suffer from ambiguous interpretations that place them simultaneously in and against the 17 18 8 market. This studyFor focuses onReview a Belgian milk label inOnly order to analyse how dairy farmers 19 20 9 developed a particular strategy to create their own fair milk.
    [Show full text]
  • Kawatec-Gmbh-AUG-Abzug-AUG
    AUG-PRO-1.0 WICHTIG – VOR GEBRAUCH LESEN! IMPORTANT – READ BEFORE USE! B E D I E N U N G S A N L E I T U N G O P E R A T O R ´ S M A N U A L 1 DEUTSCH THE MANUAL IN ENGLISH BEGINS ON PAGE 7 ! WARNHINWEIS ! Verwenden Sie die originale Schlageinrichtung ohne jegliche Modifikation mit Fremdteilen. Jede derartige Veränderung des Auslieferungszustandes führt zu einer Herabsetzung der Fallsicherheit und das kann zu einer unbeabsichtigten Schussabgabe führen. Es besteht Gefahr für Leib und Leben! KURZBESCHREIBUNG Der KaWaTec AUG Abzug ist in erster Linie ein Behördenabzug mit deutlichem Vorweg und zuschaltbarem Druckpunkt mittels der 3-Stellungssicherung. Die Mittelstellung ist die Druckpunkt-Stellung, hier ist bei Verwendung in einer Behördenwaffe nur Einzelfeuer möglich. Im Vergleich zum originalen Abzug wird der Abzugswiderstand um etwa 60 Prozent reduziert und das bei unveränderter Fallsicherheit. Die Fallsicherheit wird nicht negativ beeinflusst weil das Gewicht der ausgetauschten bzw. modifizierten Teile etwas unter dem Gewicht der Originalteile liegt. Die Reduktion des Abzugswiderstandes wird mit einer einfachen Hebelübersetzung erreicht. Im Abzugsgehäuse ist ein Züngel gelagert, welches bei Betätigung einen Druckstift an die vordere Anschlagfläche im Schaft drückt und dadurch wird das Abzugsgehäuse samt Abzugsgabel in Richtung Schlageinrichtung gedrückt. AUG-PRO-1.0 TECHNISCHE DATEN Anzahl der Bauteile: 6 (4 & 2 Normteile) Material: Aluminium 7075, Kunststoff POM C & Stahl Gewicht: 50 g / 1,06 oz Durchschnittliche Abzugsgewichtsreduktion: -60% Welche 3 Stellungen hat die Sicherung? „Gesichert“, „mit Druckpunkt“ & „ohne Druckpunkt“ Welche OEM-Bauteile werden modifiziert? Abzugsgabel WARTUNGSHINWEIS Geben Sie regelmäßig ein paar Tropfen Waffenöl auf die Gleitflächen zwischen Druckstift und Abzugsgehäuse, auf den Kontaktbereich zwischen Druckstift und Züngel und auf den Achsbolzen.
    [Show full text]