data-qa

Streamlit + Tkinter tools for large-scale image/metadata QA and delivery workflows

Online dataQA module. (AquaSPICE project)

Autonomous QA & Data Science Ecosystem. Senior QA Engineer & SDET specializing in Applied AI, LangGraph Agentic Workflows, Predictive Software Error Pipelines, and Deep Reinforcement Learning.

QGIS asset production package for AI-ready geospatial QA, labeling, provenance, and review workflows.

Americas football scouting platform featuring event analytics, automated data QA, and scouting report generation.

Origin Data Lab Technical Field Note #25: How much of 2.6 hours of egocentric work video is usable? A per-second QC index: 85% sharp, about half with hands at work

Origin Data Lab Technical Field Note #13: The wrong calibration file: how we caught a stereo calibration made for a different sensor mode

Deterministic evaluator toolkit for QGIS and geospatial AI trainer workflows.

project in process

SQL Data Quality Testing Portfolio using Google BigQuery

Origin Data Lab Technical Field Note #23: Hands are in view 75% of the time; an off-the-shelf detector finds a quarter of them: MediaPipe on head-mounted fisheye work video

Origin Data Lab Technical Field Note #24: 3D hand skeletons from a head-mounted stereo pair during real work: hands 28–42 cm away, palm segments stable to 4–10% per frame

Origin Data Lab Technical Field Note #15: How much does head motion blur egocentric video? Measured over 2 h 25 min of real work

Origin Data Lab Technical Field Note #21: Head pose from stereo alone during real work: rotation checked against the gyroscope, translation against the accelerometer

Origin Data Lab Technical Field Note #18: Don't pair stereo frames by their counters: per-session offsets of up to 3,009 frames, true sync 15 µs

Origin Data Lab Technical Field Note #20: Stable is not the same as correct: the calibration file saved with every recording was for 800×600, the video is 1600×1200

Origin Data Lab Technical Field Note #22: Checking stereo sync from the outside: a flashing monitor puts left and right within 0.15 ms

Keep E2Easy recorded tests in sync with UI changes. Pre-commit plugin for Cursor and Claude Code - MCP sync, stable test attributes, and local Playwright validation.

Automated Quality Assurance (AutoQA) analysis project: mitigating LLM agreement traps via Cohen's Kappa and identifying predictive behavioral signals.

Origin Data Lab Technical Field Note #19: Four days of real work, 8.9 hours, 957,336 stereo frames: does a head-mounted stereo+IMU rig behave the same every day?