A Kalman Filter Is a Memory System
Three problems that look unrelated: A vibration sensor on a motor gives you a jittery reading every second. You want to know the actual wear on the be…
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Testing Face Embedding Nearest Neighbor Search with OpenCV SFace
Testing Face Embedding Nearest Neighbor Search with OpenCV SFace Hello, everyone. Face recognition can sound like a big topic, but technically it can …
Vision Language Models — When AI Learns to See and Talk (Part 3 of 3)
Originally published on my blog . Cross-posted here with a canonical link. This is Part 3 of a 3-part series on the transformer revolution in vision a…
What Ball Tracking Misses in Tennis Video Analysis
Most tennis video analysis starts with the ball. Where did it land? How fast did it move? Was the shot in or out? What was the trajectory? Those are u…
Engineering a Cross-Platform Face Recognition Pipeline with Anti-Spoofing
I recently went down a rabbit hole after hearing how a major bank’s ATM face scanners were defeated by a literal piece of printer paper. It’s a classi…
Don't Buy It, Build It: Crafting an Open-Source, Edge-Computing AI Dashcam
Preface Every day, thousands of creative ideas sit completely dormant on workshop shelves around the world. A high-performance microprocessor sits in …
Engineering a Cross-Platform Face Recognition Pipeline with Anti-Spoofing
Check out my article on this blog spot, it talks about building a face recognition system that actually works in production — not a demo, not a toy, s…
Building a Zero-Dependency Barcode Scanner with the Web Barcode Detection API
I spent three years scanning barcodes with $2,000 Zebra industrial imagers on an Amazon dock. When I left that job and started consulting, my first qu…
Classifier-free guidance above 7.5 oversaturated our product renders
TL;DR: Classifier-free guidance above a scale of ~7.5 pushed our SDXL product renders into oversaturation and clipped highlights. Adding CFG rescale a…
Channels-last memory format cut our conv backbone latency 22%
TL;DR: Switching our convolutional segmentation backbone to PyTorch's channels-last memory format cut inference latency by about 22% on A100s, with no…
I entered a competition to track objects in light you can't see
Builder Journal · Hyperspectral Object Tracking Challenge 2026 In the movie, the Predator does not see the jungle the way you do. It reads heat, then …
The SDXL VAE overflow that decoded black images in fp16
TL;DR: The SDXL VAE decoder pushes activations past 65504, the max value fp16 can hold, so the last decode step overflows to inf and you get a fully b…
Winograd convolutions cost us 2 mAP and we didn't notice for a month
TL;DR: We turned on Winograd convolution to shave latency off a pedestrian detector running on a Cortex-A53, got a clean 18% speedup, and silently los…
How I Built Production-Grade AI Systems While Still a Student
🚀 Hello, DEV Community! I'm Nader Al Shawki , a final-year AI Engineering student at Al-Razi University, Yemen. This is my first post here, and I'm ex…
Image Reconstruction Using Deep Learning: A Complete Guide
A comprehensive guide covering history, techniques, datasets, algorithms, tools, real-world applications, and final year project ideas for image recon…
An AI Module Smaller Than a Smartphone Photo. Are We Underestimating the Computer We Carry Every Day?
The Idea and the Main Engineering Challenges Recently, I released a new offline AI feature for my Android application as a separate module. The entire…
Basic Stereo Algorithms (Evolution)
Stereo matching is a fundamental problem in computer vision and understanding how different approaches relate to one another can provide valuable insi…
Real-time object detection on iPhone with YOLO26
What is YOLO26 The latest object detection model, released by Ultralytics in January 2026. Compared to the previous-generation YOLO11, CPU inference i…
Our event-camera detector lost 6 mAP to a badly chosen accumulation window
TL;DR: We spent three weeks chasing a 6 mAP regression in an event-camera object detector. The model was fine. The bug was the accumulation window we …
June 9 - Visual AI in Healthcare: Ground Truth in the Foundation-Model Era
Join us on June 9 for a virtual workshop to learn how to handle expert label disagreement and build high performing fine-tuned medical foundation mode…
QAT vs PTQ on our edge vision model: 6 months of A/B data
TL;DR: We ran post-training quantisation (PTQ) and quantisation-aware training (QAT) side by side on the same defect-classification model deployed on …
Identity Verification Just Became Infrastructure — And Your Evidence Better Survive It
the shift toward audit-first identity verification ( https://go.caracomp.com/n/0527261218?src=devto ) Identity Verification Just Became Infrastructure…
The bf16 grad accumulator that killed our SDXL LoRA training
TL;DR: Our SDXL LoRA fine-tune for a Photoroom product photography model trained for six days while silently corrupting its adapter weights. The cause…
Stop retraining YOLO: a developer’s guide to zero-shot object detection with generative VLMs
If you have ever maintained a computer vision pipeline in a factory, warehouse, or construction site, you already know the drill. You spend weeks coll…
How We Automated Catalog Image Extraction using Computer Vision & FastAPI
For businesses in the stone, marble, and interior design industries, managing digital catalog assets is a massive headache. When a new product catalog…
How We Built a Contactless Digital Signature App inside the Browser (No Servers, 100% Private)
Traditional digital signature platforms have two major issues: privacy and cost . To sign a document, you have to upload sensitive agreements to a thi…
How I Built a Drone-Based Crack Detection Pipeline on AWS
I needed to build a pipeline that takes drone footage of infrastructure (bridges, facades, roads), detects surface defects like cracks and corrosion, …
Why your diffusion model is slow at batch size 1 (and what actually helps)
TL;DR: Single-image diffusion inference is bottlenecked by kernel launch overhead and attention memory traffic, not raw FLOPs. torch.compile with mode…
Beyond the Basics: Offline Models, Custom Signs, and Production Scaling (Part 4)
Over the last three articles, we’ve walked through the creation of a real-time sign language translation system—from extracting body keypoints to trai…
Delhi Court Guts Tharoor Deepfake in Hours — and Rewrites the Rules for Every Investigator
How forensic-grade analysis is beating the 3-hour deepfake window The Delhi High Court recently issued a landmark order requiring social media platfor…