markisus

8 ms·

61.
by markisus 1y ago
Yes, the normal case uses 2D input, but it can take hours to create the scene. Using the depth channel allows me to create the scene in 33 milliseconds, from scratch, every frame. You could conceptualize this as a compromise between raw poi
62.
by markisus 1y ago
Gaussian Splatting allows you to create a photorealistic representation of an environment from just a collection of images. Philosophically, this is a form of geometric scene understanding from raw pixels, which has been a holy grail of com
63.
by markisus 1y ago
Thanks so much! Even when I was putting together the demo video I was getting a little self-critical about the visual glitches. But I agree the tech will get better over time. I imagine we will be able to have virtual front row seats at any
64.
by markisus 1y ago
Yes realtime capture and display. Locality is not required. You can send the source RGBD video streams over IP and in fact I have that component working in the larger codebase that this was split off from. For that use case, you need to do
65.
Show HN: Real-Time Gaussian Splatting
144 points by markisus 1y ago|53 comments
66.
by markisus 1y ago
The paper does not give that many details about the evolution part. Normally, evolutionary algorithms contain some cross-over component where solutions can breed with each other. Otherwise it's better classified as hill climbing /
67.
by markisus 1y ago
During the transition to industrialization it’s conceivable that many people became worse off because they could not find a place in the new economy. Even if society is eventually better off, the our generation or the next may have to sacri
68.
by markisus 1y ago
I think this has also existed in the form of force sensors and more recently image-like pressure sensors.
69.
by markisus 1y ago
Can someone explain what “the framebuffer” is? I’m familiar with OpenGL programming where the OS can provide a framebuffer for an application but I’m confused about whether there is a global framebuffer for the entire desktop. Is this a Lin
70.
by markisus 1y ago
So the mathematicians have found an algorithm for producing the roots of quintic and higher order polynomials in terms of power series? Normally one would find these roots using an iterative algorithm so this seems like a big deal.
71.
by markisus 1y ago
You can stipulate conditions to make the solution work out in either direction. Suppose the bucket is the size of lake, and the leak is so miniscule that it takes many centuries to detect any loss. And also I need to keep the bucket full fo
72.
by markisus 1y ago
I have done a recent proof of concept to generate Gaussian splats from depth cameras in real-time. The intended application is for robotics and teleoperation. I made a post on reddit [1] a while back if you're interested. I believe the
73.
by markisus 1y ago
Maybe it will help to have a fluid analogy. You have a leaky bucket. What wastes more water, letting all the water leak out and then refilling it from scratch, or keeping it topped up? The answer depends on how bad the leak is vs how long y
74.
by markisus 1y ago
Does this mean that all C programs invoke undefined behavior?
75.
by markisus 1y ago
Is this a joke? It talks about how to help children smoke cigarettes. > With this in mind, smoking should be commenced at as young an age as is reasonably possible. Children who have not yet developed a pincer grasp might require modifie
76.
by markisus 1y ago
I wonder what Meta’s attitude towards copyright in general is. Last I heard their lawyers were trying to say that it’s all good to pirate copyrighted works to make machine learning models.
77.
by markisus 2y ago
Indeed. Maybe the learned circuit does something like the following. For each token's feature vector, compute a representation of positions where it appears in the sentence. This could be made possible by the positional embeddings. Tok
78.
by markisus 2y ago
Does it make sense to talk about the index of a token? The model never sees such an index does it? I thought the tokens are converted to learned embeddings at the first layer.
79.
by markisus 2y ago
Not sure but I decided on CBOR for my own project because I found a nice open source C library called TinyCBOR which can serialize and deserialize without any memory allocations. It works using an iterator that you manually move up and down
80.
by markisus 2y ago
You’re talking about WebRTC which may or may not make use of a TURN server. And I assume there are other uses of TURN which are completely unrelated to WebRTC. Use of a TURN server does not imply hiding of negotiation details. The TURN RFC
81.
by markisus 2y ago
You aren’t completely wrong apparently. > TURN is considered an extension to the STUN. So, a typical TURN server would include a STUN server implementation by default. https://www.100ms.live/blog/webrtc-turn-server
82.
by markisus 2y ago
Won’t the firewall know to let return traffic through if my computer explicitly sends a request first?
83.
by markisus 2y ago
I’m not sure what you mean by fingerprinting and supported protocols. None of that would be present inherently in a UDP stream unless the application included it. As for hiding IP address, that is a valid use case for a TURN server but I’m
84.
by markisus 2y ago
Very interesting. I even found some protocols that exactly implement the functionality I was thinking of! https://en.wikipedia.org/wiki/Internet_Gateway_Device_Protoc... https://en.wikipedia.org/wiki&#x
85.
by markisus 2y ago
Oh I thought TURN was mainly about the NAT traversal. Can you elaborate on the other points? Especially security and privacy?
86.
by markisus 2y ago
I don’t know much about IPv6 but it seems like even if we are stuck with IPv4 we could still make some sort of protocol where my computer could manipulate the NAT table entries allocated to it. Maybe something like DHCP but it deals with po
87.
by markisus 2y ago
This has got me reading about TURN and it just seems like a huge ugly hack. Two computers want to send UDP to each other. They are electrically connected by sets of physical cables. They could even be down the street from each other. But th
88.
by markisus 2y ago
I started reading it. It’s very interesting that the author thought computer vision would be the hardest part about robotics. > Without vision, robots could not move around or manipulate objects. All of the other hardware was there. Legs
89.
by markisus 2y ago
This sounds right to me. A while ago on HN someone posed a thought experiment. “What would happen if literally every investor bought only index funds?” This made me realize that you need active investors. Trouble is that no one knows who
90.
by markisus 2y ago
I thought it was the opposite of what you’re saying. Index funds buy more of stocks that are higher. And why would a 95 percent NVIDIA be against the law? It just wouldn’t be an index fund.

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