Technical Blogs
Deep dives into computer vision, geometry, and 3D understanding. Not tutorials, just my notes on things I finally understood.
- Essays
- 6
- Sections
- 27
- Minutes of reading
- 42
- Topics
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2026
- 15 min read
The Visual Cortex as a Computer Vision Architecture: Dorsal and Ventral Streams
How the brain's visual cortex uses two parallel streams, feedback loops, and relative perception to process vision. Everything rewritten for engineers who build vision systems.
- 01 The Split You Did Not Know Was in Your Design
- 02 The Dorsal Stream: Real-Time Spatial Inference
- 03 The Ventral Stream: Hierarchical Object Recognition
- 04 Implications for Computer Vision Engineering
- 6 min read
Temporal and Spatial Attention for 3D Pose Estimation
How temporal and spatial attention mechanisms enable accurate 2D-to-3D human pose estimation, with a deep dive into DSTformer.
- 01 The Ill-Posed Problem: Lifting 2D to 3D
- 02 Temporal Attention: Understanding Motion Over Time
- 03 Spatial Attention: Maintaining Anatomical Consistency
- 04 Fusion of Temporal and Spatial Streams
2024
- 5 min read
Building a Sign Language Recognition System with CNNs and OpenCV
A practical walkthrough of building a real-time ASL alphabet recogniser. Dataset, CNN architecture with the actual math, and live webcam inference using OpenCV.
- 01 Dataset
- 02 Build and Train the Model
- 03 OpenCV
- 5 min read
ROC Curves and AUC: Picking the Right Threshold for Your Model
Why accuracy fails on skewed data, how confusion matrices work, and how to use ROC curves and AUC to evaluate and compare probabilistic classifiers.
- 01 Why Accuracy Is Not Enough
- 02 True Positive, True Negative, False Positive, False Negative
- 03 Confusion Matrix
- 04 ROC Curve
- 05 AUC (Area Under the Curve)
- 6 min read
Vector Database Management Systems: Architecture and Internals
A technical overview of how Vector Database Management Systems work, covering vectorization, indexing, hardware tradeoffs, and the core challenges in building systems that search by meaning rather than exact match.
- 01 What is a Vector Database?
- 02 Why Not a Regular Database?
- 03 General Architecture of a VDBMS
- 04 Use Cases
- 05 Challenges and Limitations
2023
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