Photogrammetry explained

Transcript

1. PHOTO GRAM METRY Presented by Joel V Zachariah PYCON INDIA 2019 | LIGHTNING TALKS
2. DISCLAIMER!!! I am an absolute noob in this field I am sharing my curiosity driven pursuit with you Please educate me if you know better PyCon India 2019 | Joel Vilanilam Zachariah
3. SUMMARY OF CONTENTS OUR MAIN TOPICS (ALL IN 5 MINUTES!) What? PyCon India 2019 | Joel Vilanilam Zachariah How? Paper Explorations Getting started Why? Math Involved
4. WHAT IS IT? BASIS: PRINCIPLES OF PERSPECTIVE AND PROJECTIVE GEOMETRY PyCon India 2019 | Joel Vilanilam Zachariah P H O T O + G R A M + M E T R Y
5. Perspective is seeing of an object behind a sheet of glass... HOW: FROM BACK THEN... LEONARDO DA VINCI, 1480 PyCon India 2019 | Joel Vilanilam Zachariah
6. ...LEADING UNTIL NOW Specialized software algorithms Depth Sensors in cameras (RGB + D) Imrpovements in Stereo-imaging techniques PyCon India 2019 | Joel Vilanilam Zachariah
7. MATH INVOLVED TRIANGULATION TRANSFORMATIONS PLANAR RECTIFICATION CAMERA ROTATION PERSPECTIVE FINAL ORIENTATION PyCon India 2019 | Joel Vilanilam Zachariah
8. Randomized Correspondence Algorithm for Structural Image Editing Based on nearest neighbor field. PatchMatch Algorithm Weak Surface Support Dense Mutiview Stereo Let There be Light! PAPER EXPLORATIONS PyCon India 2019 | Joel Vilanilam Zachariah Exploiting visibility information in surface reconstruction to preserve weakly supported surfaces. Occluder reveals itself in occlusion High accuracy and visibility-consistent dense multi-view stereo. Overcomes limitations of uncontrolled imaging conditions Large scale texturing of 3D reconstruction Capturing true texture despite challenges such as blur, exposure varience etc.
9. WHY IS IT RELEVANT? POSSIBLE APPLICATIONS 3D Objects from 2D Images Surveys, VR, and much more! Item 1 Item 2 Item 3 Item 4 40 30 20 10 0 Measure App in iOS devices PyCon India 2019 | Joel Vilanilam Zachariah
10. COMPUTATIONAL PHOTOGRAPHY Principals involved in image processing PHOTOGRAMMETRY SOFTWARES Use existing solutions like Meshroom EXPLORE SKETCHFAB See whats out there - and be inspired! GETTING STARTED PyCon India 2019 | Joel Vilanilam Zachariah OPENCV TUTORIALS Get full control of your system
11. PyCon India 2019 | Joel Vilanilam Zachariah Thank you for your 300 seconds! MEDIUM @joelvzach G-MAIL joelvzach@gmail.com TWITTER @joelvzach Full write up at bit.ly/photogram-article