# Shape2vec: Understanding 3D Shapes With AI | Two Minute Papers #138

## Метаданные

- **Канал:** Two Minute Papers
- **YouTube:** https://www.youtube.com/watch?v=bB54Wz4kq0E
- **Дата:** 22.03.2017
- **Длительность:** 3:18
- **Просмотры:** 12,206

## Описание

The paper "Shape2Vec: semantic-based descriptors for 3D shapes, sketches and images" is available here:
http://www.cl.cam.ac.uk/research/rainbow/projects/shape2vec/

Code (coming soon according to the authors): https://github.com/ftasse/Shape2Vec

WE WOULD LIKE TO THANK OUR GENEROUS PATREON SUPPORTERS WHO MAKE TWO MINUTE PAPERS POSSIBLE:
Andrew Melnychuk, Claudio Fernandes, Daniel John Benton, Dave Rushton-Smith, Sunil Kim, VR Wizard.
https://www.patreon.com/TwoMinutePapers

Subscribe if you would like to see more of these! - http://www.youtube.com/subscription_center?add_user=keeroyz

Music: Antarctica by Audionautix is licensed under a Creative Commons Attribution license (https://creativecommons.org/licenses/by/4.0/)
Artist: http://audionautix.com/ 

Thumbnail background image credit: https://pixabay.com/photo-1828007/
Splash screen/thumbnail design: Felícia Fehér - http://felicia.hu

Károly Zsolnai-Fehér's links:
Facebook → https://www.facebook.com/TwoMinutePapers/
Twitter → https://twitter.com/karoly_zsolnai
Web → https://cg.tuwien.ac.at/~zsolnai/

## Содержание

### [0:00](https://www.youtube.com/watch?v=bB54Wz4kq0E) Segment 1 (00:00 - 03:00)

dear fellow Scholars this is two minute papers with Caro this one is going to be absolutely amazing this piece of work is aimed to help a machine build a better understanding of images and 3D geometry imagine that we have a large database with these geometries and images and we can search and compare them with arbitrary inputs and outputs what does this mean exactly for instance it can handle a text input such as school bus and automatically retrieve 3D models sketches and images that depict these kinds of objects this is great but we said that it supports arbitrary inputs and outputs which means that we can use the 3D geometry of a chair as an input and obtain other similar looking chairs from the database this technique is so crazy it can even take a sketch as an input and provide excellent quality outputs we can even give it a heat map of the input and expect quite reasonable results typically these images and 3D geometries contain a lot of information and to be able to compare which is similar to which we have to compress this information into a more concise description this description offers a common ground for comparisons we like to call these embedding techniques here you can see an example of a 2d visualization of such an embedding of word classes the retrieval from the database happens by compressing the user provided input and putting it into this space and fetching the results that are the closest to it in this embedding before the emergence of powerful learning algorithms these embeddings were typically done by hand but now we have these deep neural networks that are able to automatically create solutions for us that are in some sense optimal meaning that according to a set of rules it will always do better than we would by hand we get better results by going to sleep and leaving the computer on or overnight then we would have working all night using the finest algorithms from 10 years ago isn't this incredible the interesting thing is that here we are able to do this for several different representations for instance a piece of 3D geometry or 2D color image is being embedded into the very same Vector space opening up the possibility of doing these amazing comparisons between completely different representations the results speak for themselves this is another great Testament to the power of convolutional neural networks and as you can see the rate of progress in Ai and machine learning research is absolutely stunning also big thumbs up for the observant fellow Scholars out there who noticed the new outro music and some other minor changes in the series if you are among those people you can consider yourself a hardcore two-minute paper scholar high five thanks for watching and for your generous support now see you next time

---
*Источник: https://ekstraktznaniy.ru/video/14690*