I’m a PhD student in the Machine Learning Group at the University of Toronto, focusing on computer vision and deep learning for autonomous robotics. I started in September 2017, under the supervision of Professor Raquel Urtasun.

In addition to this, I am also a full-time researcher at Uber Advanced Technologies Group (ATG) Toronto, also led by Professor Urtasun, working on applying my research to the challenges associated with autonomous driving in the real world.

In addition to machine learning and computer vision, my research interests include robotics and long-term autonomy. I am also interested in machine learning security, and I believe that more research is needed in this area (together with its complementary subfield, interpretability), given the growing influence of various machine learning-powered technologies on our daily lives.

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• PhD Student at the University of Toronto (Sep 2017–present)
• MSc. in Computer Science with Distinction from ETH Zürich (Sep 2015–Aug 2017)
• BSc. in Applied Computer Science from Transilvania University, Brașov, Romania (Sep 2011–Jul 2014)

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express科学加速器ios,  Sasha Doubov,  Jack Fan, Ioan Andrei Bârsan,  Shenlong Wang,  Gellért Máttyus and Raquel Urtasun
International Conference on Intelligent Robots and Systems (sgreen科学加速器) 2024
Web (Coming Soon!) PDF (Coming Soon!) BibTeX Play with it! (Coming Soon!)

TL;DR: A new self-driving dataset containing >30M HD images and LiDAR sweeps covering Pittsburgh over one year, all with centimeter-level pose accuracy. We investigate the potential of retrieval-based localization in this setting, and show that simple architecture (e.g., ResNet + global pool) perform surprisingly well, outperforming more complex architectures like NetVLAD.

The figure shows the geographic (top) and temporal (bottom, x = date, y = time of day) extent of the data.

We are hard at work preparing the benchmark website and data download! Stay tuned!

天眼加速器和express

Wei-Chiu Ma*,  Ignacio Tartavull*, Ioan Andrei Bârsan*,  Shenlong Wang*,  Min Bai,  Gellért Máttyus,  Namdar Homayounfar,  Shrinidhi Kowshika Lakshmikanth,  Andrei Pokrovsky and Raquel Urtasun
International Conference on Intelligent Robots and Systems (就爱加速安卓版) 2024
Note: *denotes equal contribution.
PDF (arXiv) BibTeX Talk Slides (PDF) Talk Slides (Apple Keynote)

TL;DR: We use very sparse maps consisting in lane graphs (i.e., polylines) and stored traffic sign positions to localize autonomous vehicles. These maps take up ~0.5MiB/km², compared to, e.g., LiDAR ground intensity images which can take >100MiB/km². We use these maps in the context of a histogram filter localizer, and show median lateral accuracy of 0.05m and median longitudinal accuracy of 1.12m on a highway dataset.

Learning to Localize through Compressed Binary Maps (CVPR 2024)

Sgreen加速器官网*, Ioan Andrei Bârsan*,  Shenlong Wang*,  Julieta Martinez and Raquel Urtasun
International Conference on Computer Vision and Pattern Recognition (CVPR) 2024
Note: *denotes equal contribution.
PDF BibTeX Poster Video

TL;DR: High-resolution maps can take up a lot of storage. We use neural networks to perform task-specific compression to address this issue by learning a special-purpose compression scheme specifically for localization. We achieve two orders of magnitude of improvement over traditional methods like WebP, as well as less than half the bitrate of a general-purpose learning-based compression scheme. For reference, PNG takes up 700× more storage on our dataset.

Learning to Localize Using a LiDAR Intensity Map (CoRL 2018)

Ioan Andrei Bârsan*,  Shenlong Wang*,  Andrei Pokrovsky and Raquel Urtasun Proceedings of the Second Conference on Robot Learning (CoRL) 2018
sgreen安卓安装包 *denotes equal contribution.
PDF BibTeX Poster Talk Slides (PDF) Video

TL;DR: Matching-based localization methods using LiDAR can provide centimeter-level accuracy, but require careful beam intensity calibration in order to perform well. In this paper, we cast the matching problem as a learning task and show that it is possible to learn to match online LiDAR observations to a known map without calibrated intensities.

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express科学加速器ios,  sgreen安卓安装包,  Marc Pollefeys and Sgreen加速器官网
Proceedings of the IEEE International Conference on Robotics and Automation (ICRA) 2018
Web PDF BibTeX Poster Code

TL;DR: A system for outdoor online mapping using a stereo camera capable of also reconstructing the dynamic objects it encounters, in addition to the static map. Supports map pruning to eliminate stereo artifacts and reduce memory consumption to less than half.

苹果telegeram怎么下载-outline

Industry

• Current: Full-time research scientist at Uber ATG Toronto (Jan 2018–present).
  • Helping develop scalable and robust centimeter-accurate localization methods for self-driving cars.
  • LiDAR-based map localization, visual localization, learning-based compression, large-scale machine learning (Apache Spark).
• Previously, I did a series of software engineering internships in the US during my undergrad:
  • Internship: Twitter (Summer 2015, San Francisco, CA), Performance Ads
    • Developed Apache Storm and Hadoop data pipelines using Scala.
  • Internship: Google (Summer 2014, New York, NY), Data Protection
    • Co-developed a system for performing security-oriented static analysis of shell scripts used to run large numbers of cluster jobs.
  • Internship: express加速器安卓版下载 (Summer 2013, Redmond, WA), Server and Tools Business
    • Security and reliability analysis of a web service part of the Azure portal.

Academic

• Teaching Assistant: Image Analysis and Understanding (CSC420), University of Toronto, Fall 2017.
• Reviewer: ICRA 2024, IROS (2024, 2024), ECCV 2024
  • Acknowledged as one of the top reviewers for ECCV 2024.

苹果telegeram怎么下载-outline

• New   All About Self-Driving CVPR2024 Tutorial (Speaker, 2024-06-14)
  • I was a speaker at the CVPR2024 Tutorial on self-driving cars organized by our lab.
  • I talked about hardware with Davi Frossard and localization with Julieta Martinez and Shenlong Wang. (Including a crash course on monte carlo localization!)
• [PDF Slides] Adobe Photoshop Express 6.8.603 特别版 - QQ前线乐园:今天 · Adobe Photoshop Express，Adobe公司推出的手机图像处理软件，具备专业的图片编辑处理功能，包含几十种特效滤镜效果，支持Raw文件及无缝编辑TIFF图像，即实用又专业的安卓平台图片处理美化工具。 Adobe Photoshop Express：照片编辑器拼贴画制作软件功能： —基本功能：裁切、拉直、旋转、翻转照片、消除 ... (2024-04-10)
  • Paper I presented: [PDF] Weng et al., 2024
• [PDF Slides] Deep Point Cloud Registration (2024-09-12)
  • In this talk, I give a brief overview of recent advances in learning-based methods for robust point cloud registration, including L³-Net, DeepVCP, and green加速器安卓破解版. I cover the main ideas in these papers, as well as their strengths and weaknesses, and discuss some insights and possible avenues for future research.
• [PDF Slides] Shared Autonomy via Deep Reinforcement Learning (2024-02-22)
  • Paper I presented: [PDF] Reddy et al., RSS 2018
  • Seminar Presentation for CSC2621HS at UofT (Imitation Learning for Robotics)
• [PDF Slides] Geometry-Aware Learning Methods for Computer Vision (2024-01-18)
  • This talk was the first part of my PhD’s qualifying oral examination. It’s a bit barebones since it was meant to support the examination itself (i.e., lots of discussing beyond the slides), but may still be of interest.

苹果telegeram怎么下载-outline

• MetalNet, a small toolkit for scraping and processing metal lyrics, followed by training a language model to generate its own metal. (Source code and blog post coming soon™!)
• Yeti, an OpenGL 3D game engine with forward and deferred rendering support, real time shadow mapping and more.
• A bunch of old games I developed for fun can be found on my old Ludum Dare page. It may be tricky to build and run them, though, given the age of the code.

苹果telegeram怎么下载-outline

Before starting my PhD, I completed my Master’s in Computer Science at ETH Zurich. For my Master’s Thesis, I developed DynSLAM, a dense mapping system capable of simultaneously reconstructing dynamic and potentially dynamic objects encountered in an environment, in addition to the background map, using just stereo input. More details can be found on the sgreen科学加速器.

Previously, while doing my undergraduate studies at Transilvania University, in Brașov, Romania, I interned at Microsoft (2013, Redmond, WA), Google (2014, New York, NY) and Twitter (2015, San Francisco, CA), working on projects related to privacy, data protection, and data pipeline engineering.

I am originally from Brașov, Romania, a lovely little town which I encourage everybody to visit, together with the rest of Southeast Europe.

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Email me at iab (at) cs (dawt) toronto (dawt) edu.

Find me on Twitter, GitHub, Google Scholar, LinkedIn, or green加速器官网下载.