origin-data-lab

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 #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 #12: Why your calibration board disappears at 60 cm: measured ChArUco detection limits on a wide-angle egocentric camera

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 #10: Can you trust the clocks? Frame, stereo and IMU timing of a stereo+IMU egocentric rig, measured

Origin Data Lab Technical Field Note #11: Is the factory calibration good enough? Independent validation of a fisheye stereo camera over 237,000 corner observations

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

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

Origin Data Lab Technical Field Note #17: Where does a head-mounted camera point during real work? View direction, hands and self-occlusion over 2 h 25 min

Origin Data Lab Technical Field Note #16: Does the data hold up over a real shift? Recording integrity and calibration over 2 h 25 min of head-mounted 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 #14: IMU noise and bias of a stereo+IMU egocentric rig, measured from static recordings

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?