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Risorsa bibliografica obbligatoria
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Scheda Riassuntiva
Anno Accademico 2019/2020
Scuola Scuola del Design
Insegnamento 096777 - REVERSE MODELING
Docente Guidi Gabriele
Cfu 6.00 Tipo insegnamento Monodisciplinare

Corso di Studi Codice Piano di Studio preventivamente approvato Da (compreso) A (escluso) Nome Sezione Insegnamento
Des (Mag.)(ord. 270) - BV (1091) DESIGN & ENGINEERING - PROGETTO E INGEGNERIZZAZIONE DEL PRODOTTO INDUSTRIALE***AZZZZ096777 - REVERSE MODELING
Des (Mag.)(ord. 270) - BV (1092) DESIGN DEGLI INTERNI - INTERIOR DESIGN***AZZZZ096777 - REVERSE MODELING
Des (Mag.)(ord. 270) - BV (1097) DESIGN FOR THE FASHION SYSTEM - DESIGN PER IL SISTEMA MODA***AZZZZ096777 - REVERSE MODELING
Des (Mag.)(ord. 270) - BV (1159) PRODUCT SERVICE SYSTEM DESIGN - DESIGN PER IL SISTEMA PRODOTTO SERVIZIO***AZZZZ096777 - REVERSE MODELING
Des (Mag.)(ord. 270) - BV (1160) DESIGN DEL PRODOTTO PER L'INNOVAZIONE***AZZZZ096777 - REVERSE MODELING
Des (Mag.)(ord. 270) - BV (1161) INTERIOR DESIGN***AZZZZ096777 - REVERSE MODELING
Des (Mag.)(ord. 270) - BV (1162) DESIGN DELLA COMUNICAZIONE***AZZZZ096777 - REVERSE MODELING
Des (Mag.)(ord. 270) - BV (1163) DESIGN PER IL SISTEMA MODA***AZZZZ096777 - REVERSE MODELING
Des (Mag.)(ord. 270) - BV (1164) PRODUCT SERVICE SYSTEM DESIGN***AZZZZ096777 - REVERSE MODELING
Des (Mag.)(ord. 270) - BV (1165) DESIGN & ENGINEERING***AZZZZ096777 - REVERSE MODELING
Des (Mag.)(ord. 270) - BV (1260) INTERIOR AND SPATIAL DESIGN***AZZZZ096777 - REVERSE MODELING
Des (Mag.)(ord. 270) - BV (1261) INTEGRATED PRODUCT DESIGN***AZZZZ096777 - REVERSE MODELING
Des (Mag.)(ord. 270) - BV (1262) DIGITAL AND INTERACTION DESIGN***AZZZZ096777 - REVERSE MODELING

Obiettivi dell'insegnamento

The objective of the course is to present the main technologies and methods for generating a digital 3D model acquiring a real scene. This possibility can be used in different applications in the Design field, for example digitalising a physical model that represents a “concept” developed manually; render a real digitalized object in a synthetic 3D scene and viceversa; produce the reverse modelling of an old industrial product to restyle it, etc. At the end of the course, students will be able to select the most suitable technology for the different project purposes, use it considering the inevitable size artefacts, and carry out the creation and post-production of a polygon model starting from a cloud of measured 3D points.


Risultati di apprendimento attesi

Students:
- applying knowledge and understanding: know the 3D modelling and reverse modelling software for creating digital prototypes;
- making judgements: can use the software studied, making suitable technological choices;
- communication skills: can build digital prototypes using 3D modelling and reverse modelling, useful for project representation and visualisation.


Argomenti trattati

Theoretical introduction

General information on 3D measurement methods, with and without contact.

Nature of light.

Light-matter interaction.

Taxonomy of non-contact systems based on different forms of radiant energy.

Passive and active 3D sensing techniques.

Active 3D sensors

3D measurement for triangulation:

Laser scanner with single spot, single light plane, multiple light plane.

Full-field measurement based on fringe projection.

Active systems based on measurement of distances:

3D flight time measurement (TOF); direct estimation of flight time (PW); indirect estimation of flight time (CW); indirect estimate of flight time (FM-CW).

Principles of 3D metrology

Characterization of the errors of a range device.

Study of the possible artefacts generated by an active sensor.

Construction of polygonal models from acquired data

Topological concepts.

Working pipeline: draft project; acquisition, meshing; alignment; (Iterative Closest Point algorithm); merge; optimization; editing.

Passive 3D sensors.

Principles of photogrammetry.

Camera calibration.

Structure from motion, image matching, generation of dense 3D clouds.

Creating models from images.

Standard software packages for the realization of the entire Reverse Modeling process with active and passive techniques.


Prerequisiti

There are no pre-requisites for attendance.


Modalità di valutazione

The overall evaluation will be based on:

 1 multiple choice theoretical test, based on the contents illustrated in class and the bibliography texts (personal evaluation);

 1 exercise with active acquisition techniques (group assessment);

 1 exercise with passive acquisition techniques (group assessment);

 a critical presentation of the work carried out at the end of the course.


Bibliografia
Risorsa bibliografica obbligatoria https://beep.metid.polimi.it
Note:

2018-19 Course slides

Risorsa bibliografica obbligatoriaGabriele Guidi and Fabio Remondino, 3D Modelling from Real Data, Editore: Intech, Editore: Catalin Alexandru, Anno edizione: 2012, ISBN: 978-953-51-0012-6 ttp://www.intechopen.com/books/modeling-and-simulation-in-engineering/3d-modeling-from-real-data.
Risorsa bibliografica obbligatoriaLuhmann, Thomas; Robson, Stuart; Kyle, Stephen; Boehm, Jan, Close-Range Photogrammetry and 3D Imaging, Editore: De Gruyter, Anno edizione: 2014, ISBN: 978-3-11-030278-3
Risorsa bibliografica obbligatoriaGabriele Guidi, Michele Russo, Jean-Angelo Beraldin, Acquisizione 3D e modellazione poligonale, Editore: McGraw-Hill,, Anno edizione: 2010, ISBN: 9788838665318

Forme didattiche
Tipo Forma Didattica Ore di attività svolte in aula
(hh:mm)
Ore di studio autonome
(hh:mm)
Lezione
38:00
76:00
Esercitazione
0:00
0:00
Laboratorio Informatico
12:00
24:00
Laboratorio Sperimentale
0:00
0:00
Laboratorio Di Progetto
0:00
0:00
Totale 50:00 100:00

Informazioni in lingua inglese a supporto dell'internazionalizzazione
Insegnamento erogato in lingua Inglese

Note Docente
schedaincarico v. 1.6.5 / 1.6.5
Area Servizi ICT
19/09/2020