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raghavkhanna

87 karma · joined September 8, 2013

robotics, computer vision and software engineering
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raghavkhanna··on Show HN: I built Haystack – your own google for scattered workplace knowledge
Does the index contain only info I have access to? How is authentication for all the knowledge sources handled?
raghavkhanna··on Tesla AI Day Live Stream [video]
That was my question too. It seems they have a deal with Samsung, atleast for the FSD computer chips[1].

[1] https://electrek.co/2021/05/03/how-tesla-pivoted-avoid-globa....

raghavkhanna··on Cognicull: Knowledge base for mathematics, natural science and engineering
Well designed interface. There might be something here if one can use this to render one's own notes? Or is this meant to render user provided content like Wikipedia?
raghavkhanna··on Show HN: My personal website is a shell
really like the shell ergonomics, how about adding tab completion?
raghavkhanna··on Show HN: PyWebIO – Write interactive web app in script way
perhaps this link might help https://pywebio.readthedocs.io/en/latest/guide.html#server-m...
raghavkhanna··on Show HN: PyWebIO – Write interactive web app in script way
I really like the concept, thanks for sharing!
raghavkhanna··on Sensible macOS Defaults
Perhaps something to the tune of "How to customize macOS defaults" would be more appropriate then?
raghavkhanna··on Show HN: Marple – Visualising millions of datapoints for engineers
Tried it out, looks nice :) Is there a quick screenshot feature? That would be really helpful for sharing analysis and storing important views.
raghavkhanna··on Show HN: Mmap.it – personal search without context switching
I love how focused it is! Would this work on linux in case I build it from source? Just tried it out on my mac and seems to be a little buggy at the moment. The editor doesn't seem to reliably respond to keystrokes and the search window went blank a couple of times. I guess it needs some polish, but I like the UI a lot.
raghavkhanna··on 42 is found to be the sum of three cubes
Here's a great video by numberphile on the subject https://www.youtube.com/watch?v=ASoz_NuIvP0
raghavkhanna··on YC Interviews in India
Great initiative! This should encourage more Indian/ SE Asian founders to apply, since they no longer have to think about the time spent on the arduous US visa application process - and can instead keep the focus on building their company. Kudos to YC!
raghavkhanna··on I wrote this geometry library based on the lectures on projective geometry
Thanks for sharing, probably should make this a Show HN though?
raghavkhanna··on Launch HN: JITX (YC S18) – Automating Circuit Board Design
Great demos! Are you planning to release your design software for users at some point? As a fellow roboticist and tinkerer, I think this would be a great tool to have for simple circuits such as adapters which are way too much of a pain atm.

Would be cool to see the output design integrated with an interactive simulation and inspection tool such as [1].

[1] https://www.falstad.com/circuit/circuitjs.html

raghavkhanna··on VS Code June 2018
Just wanted to thank the VSCode team for this fantastic editor, recently discovered it and has become my daily driver. Keep up the excellent work!
raghavkhanna··on [dead]
Not that it matters much, but just out of curiosity, is the author the real Mark Z.?
raghavkhanna··on [dead]
What makes you say that?
raghavkhanna··on [dead]
Is this appropriate as a Show HN? I assume not everyone who wants to see how this works wants to actually (irrevocably) delete their account.
raghavkhanna··on Shouting in the Datacenter (2008) [video]
tl;dr, Vibration due to shouting causes measurable impact on spinning disk performance, increasing io latency. I guess this wouldn't apply to SSD's though?
raghavkhanna··on 5 Biggest Technologies Which Are in Trend Universally in 2018
gives a 404 error... 404 error: Page not found
raghavkhanna··on P2P encrypted chat with Whatsapp like seamless web experience
Please make this an Ask HN, with a question mark at the end,so as to not confuse other readers. Right now, it seems you're talking about an app that does this.
raghavkhanna··on Sketch.systems
Looks great! Probably even has applications for anybody prototyping a Finite State Machine, which are very common. Also, I'm not aware of any intuitive FSM design tools which one can "get" in a 5 min tutorial.
raghavkhanna··on Microsoft Is Said to Have Agreed to Acquire GitHub
"Please wait while we're updating your repo" ... 30-60 mins ... connection timed out
raghavkhanna··on Steve Jobs at MIT Sloan School of Management (1992) [video]
"We won't see another operating environment for computers, because it's extremely hard to fund a professional sales force to educate users with an ASP of around $500"

It's amazing how well this insight/prediction holds after 26 years, the only other comparable OS/OE today is linux, which didn't rely on the funding. Makes me think if/how another leap in computing software will happen.

raghavkhanna··on ML turns video of a 360° turn into 3D model of a person
Source code seems to be available :)

https://graphics.tu-bs.de/people-snapshot

raghavkhanna··on ML turns video of a 360° turn into 3D model of a person
How is this ML? They use a CNN for foreground segmentation, a minor step in their pipeline. But the major contribution seems to be putting the silhouettes in a common reference frame. I sincerely hope sciencemag isn’t putting ML in the title purely to jump on the bandwagon.
raghavkhanna··on This Game Teaches You How to Build a Quantum Computer
Looks interesting! Too bad it doesn’t seem to be responsive on mobile...or did I miss something?
raghavkhanna··on Apple’s AR is closer to reality than Google’s
I was in no way trying to undercut Apple's efforts, just stating what's written in their documentation [1], i.e they're currently only performing tracking with VIO as compared with Google's [2].

"Almost by default a robust VO system using some kind of sensor fusion does a form of relocalization but rarely loop closure." This is not true, Visual(Inertial) Odometry systems typically estimate "odometry" i.e frame to frame motion tracking hence the name, such as in [3] and [4], whereas SLAM systems, such as [5], store a map of features, and their descriptors to relocalize which isn't necessarily a typical feature of pure VO systems.

[1] https://developer.apple.com/arkit

[2] https://developers.google.com/tango/developer-overview

[3] https://github.com/uzh-rpg/rpg_svo

[4] https://github.com/ethz-asl/rovio

[5] https://github.com/raulmur/ORB_SLAM2

raghavkhanna··on Apple’s AR is closer to reality than Google’s
Apple's offering is currently further reaching, but I won't be surprised, if in the coming years, most high end smartphones start shipping with tango-like hardware, especially if AR's appeals broadens. ARKit should certainly be a contributor to that.
raghavkhanna··on Apple’s AR is closer to reality than Google’s
Good points, just wanted to point out that, according to their documentation[1], Apple ARKit doesn't do SLAM, but Visual Inertial Odometry, which is one of the (important) components of a SLAM system, whereas Tango does the full SLAM pipeline with loop closure and relocalisation, and should therefore enable more, larger scale applications and allow for persistence between device/app reboots etc.

[1] https://developer.apple.com/arkit

raghavkhanna··on Apple’s AR is closer to reality than Google’s
The article seems to point out Apple's advantages, however, using a dedicated global shutter fisheye camera, in the case of tango makes it much more suitable for large scale AR apps, imo, which would make it much more suitable for games etc. Also, ASUS already released phones with tango hardware [1].

[1] https://www.asus.com/Phone/ZenFone-AR-ZS571KL/

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