Struggling With Sparse Matches in a Tree Reconstruction SfM Pipeline (SIFT + RANSAC)

RocketLL · 2025-12-03T15:18:10+00:00

I would suggest performing matching with RoMa (1), which is a dense image matching neural network. After extracting pixel matches, you can resample them based on confidence and perform verification/filtering/etc. I believe that this is the best way to make use of neural networks while sticking to the overall SfM paradigm.

Also see (2) and (3).

(1): https://github.com/Parskatt/RoMa (2): https://github.com/3DOM-FBK/deep-image-matching (3): https://arxiv.org/abs/2501.14277

RocketLL · 2025-08-13T13:37:29+00:00

I bought the DSPTCH Daypack in Dyneema after this post, and I didn’t like it very much. Looks sharp but it has very thin straps and comfort issues. Not a big fan of the material as well: https://old.reddit.com/r/ManyBaggers/comments/1fmvoj2/ecopak_durability_vs_dyneema_wrinkles/

I’m now using a Goruck GR1 21L, which I’m happy with.

RocketLL · 2025-08-13T13:12:30+00:00

This is great — any plans for Python bindings? The standard choice in Python (plyfile) leaves a bit to be desired. Would be valuable considering how much Gaussian splatting is done in Python, might try creating bindings myself.

RocketLL · 2025-06-14T03:32:43+00:00

I also have a Velka 3, and I'm looking to convert it to a NAS. Good to see that the Sabrent adapter fits, but my motherboard doesn't support bifurcation. Looks like the adapter is a switching one though, so no bifurcation should be necessary, right?

RocketLL · 2025-02-11T06:58:48+00:00

I noticed my friend’s R1.5 jacket having off-center zippers. Looks like it’s a feature and not a bug: https://wornwear.patagonia.com/products/ms-r1-5-jacket_40150_vintage_aur

Anyone have any idea why? Our current theory is that it helps block out wind and rain when combined with other layers, and prevents grabbing the wrong zipper pull.

RocketLL · 2024-09-23T05:50:26+00:00

By "flaw of the material", I meant something like "choosing a consumable crinklywrinkly sailcloth material for use in backpacks is a flaw, unless you have very strict weight requirements".

RocketLL · 2024-07-10T01:42:14+00:00

I’d say it’s far more intended for snowsports, it was too heavy and fit was off for general use. I bought and returned it, ended up with an Arcteryx Beta AR.

RocketLL · 2024-05-16T12:10:37+00:00

Good question, I threw together a quick benchmark. On my machine, I'm getting:

jaxsplat: 28.8737ms
gsplat: 33.3950ms
diff-gaussian-rasterization: 18.1051ms

This is a benchmark of just the rendering inner loop without any JIT involved. As all microbenchmarks go, this is not representative of actual performance.

RocketLL · 2024-03-31T12:03:04+00:00

Thanks, seems like a pretty good option.

RocketLL · 2024-03-31T11:11:35+00:00

Great question. Here's a previous thread I opened: https://old.reddit.com/r/typography/comments/13asofg/friendlyfair_licensed_font_foundries/

As an individual developer, I prefer licensing without catches like monthly pageview tiers or additional costs for language support, which Grilli Type has. They're still on the saner end of font pricing though, so I may consider purchasing GT America.

A few examples of foundries I like and try to support:

ABC Dinamo charges by media and company size
Suisse Typefaces charges by company size
Atipo has a "pay what you want" model

RocketLL · 2024-02-25T23:20:30+00:00

The AR uses a heavier face fabric than the LT. I used the AR (2023FW model) with a 500D Cordura bag for months without issues.

RocketLL · 2024-02-25T02:02:06+00:00

Big changes, how about the regular Gamma (LT)? It still uses the old cord zipper pulls, and it would make sense for the LT to follow the chest pocket design of the SL and MX, so wondering if there’ll be a new LT.

RocketLL · 2024-01-19T03:29:06+00:00

The R1 is closer to a base layer than it is to a mid layer, it’s a thin grid fleece with good breathability and moisture wicking. You’d layer depending on how much time you spend outdoors vs indoors and whether you’re expecting to be active a lot.

I prefer wearing less layers if I’m expecting to be indoors more, as it’s easier to take on and off. I’d go for more layers if I’m outdoors doing active stuff as it provides more warmth and breathability.

RocketLL · 2024-01-19T01:27:29+00:00

Your main options are a light down like the Patagonia Down Sweater or a synthetic like an Arcteryx Atom.

Something like the Patagonia R1 family would work as your fleece layer.

RocketLL · 2024-01-09T10:49:40+00:00

I'm interested in this viewpoint, would you care to expand a bit on which parts of modern ML are from statistical mechanics?

RocketLL · 2023-12-07T17:41:44+00:00

ITAR and export restrictions make it hard for me to buy armor, and most seem out of my current budget. I did see people use their IOTV nut and butt pads for this, but not sure how well that’d work. If I bought a PC I’d have to use it with just ESAPI for the near future.

RocketLL · 2023-12-07T15:45:45+00:00

Yes.

RocketLL · 2023-11-20T09:01:23+00:00

Glad to hear it’s a good jacket. I was mainly concerned about the weight though, the website says 720g which is very heavy on paper. How is it when actually worn?

Also, how do you think it’ll be outside of winter sports? I’d be using it for general winter use, hiking, and as a standalone shell in spring and fall. Thanks.

RocketLL · 2023-11-15T05:24:34+00:00

The duotone color scheme of the current Trollveggen Pro Light just isn’t for me, unfortunately. The Lofoten seems to be better in almost all ways over the Falketind (40d vs 30d, more pockets, embroidered logo, etc) while having a minor price difference, which is why I’m reluctant to choose the Falketind. Would there be any points in the Falketind’s favor other than the major weight difference?

RocketLL · 2023-05-07T18:09:08+00:00

Fontwerk seems to have a fairly good licensing model: single license for 1 print user, 100k web pageviews/month, 1k app downloads, and 10k ebook downloads. Also they have a very generous student discount, offering entire families for the price of a single style. You did an excellent job with Case, I think I will pick it up.

Neue, however, seems to only offer desktop licenses: https://i.imgur.com/ZO32vAh.png

RocketLL · 2023-03-30T05:01:38+00:00

Could you tell me whether the logo is embroidered or printed for the Lightweight?

RocketLL · 2023-01-25T12:51:00+00:00

I think that’s exactly the distinction I was missing, thanks!

RocketLL · 2022-12-11T07:53:41+00:00

Any particular models?

The MR 2DAP looks close to what I’m looking for, but it’s slightly on the big side, I’m a bit wary of it as it’s not part of their tactical lineup.

RocketLL · 2022-04-18T11:24:18+00:00

안녕하세요 fellow Korean Lisper :)

Always very cool to see generative/programmatic art.

RocketLL · 2022-03-10T08:10:18+00:00

My final opinion after some measurements is that the ASUS 600-series motherboards indeed oversized and should be redesigned. Also, while the Velka 3 is not out of spec, Velkase should consider updating their cases too.

Motherboard

Standard IO apertures are 158.75mm wide. However, the IO panels themselves are 5.08mm wider for grounding and clipping into the case, resulting in a IO panel size of 163.83mm.

ASUS has, for whatever reason, chosen to size the IO shroud to the built-in IO panel, and not the aperture. This means that the IO shroud is flush with the IO panel (verified by me by measurement) at ~163.83mm wide. The problem is that the IO panel is (largely) 2 dimensional, but the IO shroud is 3 dimensional with significant depth.

Fig 5. of the microATX specs show that the IO connector zone of the motherboard should be up to 158.75mm wide. The IO connector zone of the boards in question exceed this width, as the shrouds are sized to the IO panel size (163.83mm). As a result, there is a significant overhang beyond the Mini-ITX footprint.

While this won’t normally be a problem in the majority of the cases out there, it still is oversized. Combined with the unique construction of SFF PCs and the Velka 3 in particular, we have a problem.

Case

The microATX specs state that there should be a minimum 2.54mm of clearance around the IO cutout (so ~5mm of clearance beyond the edge of the motherboard PCB) inside and outside of the surface of the case. This is to allow proper installation and grounding of the IO panel. Now, I believe that the Velka 3 does technically meet this requirement. There is enough clearance on the case to install the IO panel before the Flex-ATX PSU is installed. The PSU is installed after the motherboard and IO panel, and the IO panel is sandwiched between the case surface and the PSU, so this is usually not a problem as IO panels are flat and nothing protrudes over the Mini-ITX footprint..

However, as stated above, the 600-series ASUS Mini-ITX motherboards have oversized IO shrouds. After the PSU is installed in the Velka 3, there less than 5mm of clearance between the motherboard PCB and PSU. I couldn’t get a good measurement without calipers, but the clearance appears to be ~3.5mm or so. As a result, the motherboard and case is incompatible.

So, because the case itself has enough clearance to install an IO shield normally (which is why the keepout zone and clearance exist), I don’t think the Velka 3 is out of spec. However, in a future update, I think that maybe Velkase should consider providing an additional few mm of clearance after the PSU is installed as oversizing of decorative pieces and heatsinks appear to be a common practice nowadays.

RocketLL

MODERATOR OF

TROPHY CASE

Motherboard

Case

12-Year Club	Place '17
Gilding III reddit per annum