News for hackers. Stuff that matters.

dr_blueberry

Show HN: I made a computer vision tool for evaluating deadlift form

https://github.com/jeremyipark/vision-demos/tree/main/deadlift

I've shared a few deadlift demos in the past. This new demo includes some new models, accessed through the VLM Run Gateway:- SAM 3.1 to segment the barbell weight plate- ViTPose+ Large to measure the hip hinge angle, which serves as a backup for segmenting the reps. The pose data can definitely be used more later.- Gemma 4 26B through the Gateway's TypeSafe-compatible API to output the...

( Read More... | 1 comment | 3 points | on HN )

Show HN: I made a 3D rock climbing analysis tool using iPhone LiDAR [video]

https://www.youtube.com/watch?v=vjItC11jF0o

Having learned a lot from sharing my previous rock climbing demos, I realized that a lot of rock climbing analysis is well-suited for 3D. Even something as simple as supporting videos where the person filming moves with the climber requires 3D information.To get the depth information, I used my iPhone 15 Pro's LiDAR depth sensor through my local iPhone app. I recorded the video and depth...

( Read More... | 2 comments | 2 points | on HN )
Re:Ask HN: What are you working on? (September 2026) on Monday September 14, 2026 @03:21PM (#49702489)
Working on real-world computer vision demos with a focus on fitness.

So far, they are based on ViTPose+ Large pose estimation in the context of different sports.

My demos include:

- Comparing dancers' sync performing the same choreography and computing a sync score

- Visualizing a runner's ankle path while running, as well as the average knee shape upon foot strike

- Counting chin-ups reps and measuring each rep duration

The code is open-source on GitHub:

https://github.com/jeremyipark/vision-demos

Show HN: Run open-weight OCR, VLM and vision models behind one API

https://www.vlmrun.com/gateway

Hey HN. We built an openai-compatible API for running open-weight VLMs, OCR VLMs and ViT-based vision models.The motivation was mostly frustration when running these models in production and discovering all the details around serving VLMs, especially around visual accuracy.A few footguns we kept running into:- quantized models served under the same name (this one still drives me nuts):...

( Read More... | no comments | 5 points | on HN )
Re:I made a rock climbing tool using computer vision [video] on Tuesday August 25, 2026 @10:56AM (#49435275)
I prompted VLM Run’s visual agent Orion to segment all of the blue bouldering holds, and it did a good job! It is interesting that now we can prompt VLMs to segment all of the holds, rather than creating a new dataset from scratch to train a model.

With holds detection + pose estimation, I can show how each hold gets activated as a hand or foot uses it. Once we touch the final hold with both hands, the route is completed, and I show the overall path of my torso midpoint.

A tool like this could help climbers understand their movement better. I’m still very much a beginner at bouldering, so it would be great to get quantitative feedback.

There are definitely things to improve, but overall I’m encouraged by this first demo.

Models used:

- VLM Run’s Orion for segmentation (https://www.vlm.run/)

- ViTPose+ Huge for pose estimation (via Hugging Face)

- RT-DETR for person detection (via Hugging Face)

Shoutout to Daniel Reiff and his bouldering + computer vision project for the inspiration!

Link to Daniel Reiff's bouldering + computer vision blog: https://blog.roboflow.com/bouldering/

Doing some initial testing of Gemini ER 2 within the Orion 2 visual agent harness. I'll share a few initial results and chat threads here. I'm impressed with how fast Gemini ER2 is.

1. Crop the segment when adding rice to the rice cooker + analyze a frame: https://chat.vlm.run/c/40b5edfb-6d15-47e8-bedd-c77b1ed92496

2. Extract 16 keyframes in a 4x4 grid + detect the water bottle: https://chat.vlm.run/c/a8542517-0021-4013-9663-a9f41f286e4c

3. Extract the frame at 0:03 + segment the lettuce + generate a 3D reconstruction: https://chat.vlm.run/c/494c7c65-4aa1-442f-a78a-bfd1409c784d

(I work at VLM Run).