Table 1 The assumed camera parameters, out-of-plane translations of the sensor and lens and global coordinates of the test object for the error estimation in stereo-DIC.
From: Modeling of systematic errors in stereo-digital image correlation due to camera self-heating
Inputs | Left camera | Right camera | |||
|---|---|---|---|---|---|
1 | Camera parameters | f1(mm) | 50 | f2(mm) | 50 |
Cx1(pixel) | 1224 | Cx2(pixel) | 1224 | ||
Cy1(pixel) | 1024 | Cy2(pixel) | 1024 | ||
dx1(mm/pixel) | 3.45 × 10−3 | dx2(mm/pixel) | 3.45 × 10−3 | ||
dy1(mm/pixel) | 3.45 × 10−3 | dy2(mm/pixel) | 3.45 × 10−3 | ||
φ1(°) | 76 | φ2(°) | 76 | ||
Baseline distance B = 330 mm | |||||
2 | Translation of sensor | dS1(ti) = kS1 × T(ti), kS1 = 3.1μm/°C | dS2(ti) = kS2 × T(ti), kS2 = 3.1μm/°C | ||
Translation of lens | dL1(ti) = kL1 × T(ti), kL1 = 4.4μm/°C | dL2(ti) = kL2 × T(ti), kL2 = 4.4μm/°C | |||
T(ti) is the temperature change curve taken from a real test | |||||
3 | Global coordinates | Planar surface (XW = 125:1:205, YW = −40:1:40, ZW = 730, units: mm) | |||
