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Image Processing & Correction

Field of View (FOV)

The acquisition tile — and why per-FOV vs cross-FOV behavior is a real distinction in StrataQuest

Definition
A Field of View is one acquisition frame — the spatial region the camera images at a single stage position. The dimensions are determined by the camera sensor, the objective magnification, and the optical path. For whole-slide imaging, an entire slide is acquired as a grid of FOVs (sometimes hundreds, sometimes thousands), tiled at adjacent positions and combinedLoading... into a single composite. StrataQuest engines come in two flavors with respect to FOVs: per-FOV (local) engines run independently on each tile and concatenate results — fast, parallelizable, but objects spanning tile boundaries get split into separate detections; cross-FOV (global) engines treat the stitched image as a single field — slower, less parallelizable, but objects spanning boundaries are detected as one. The engine's documentation will name which it is.
Supporting
H&EDSPTCH
Video · Supporting
User Interface - Image Viewer + Toolbar
Video · Supporting
One FOV ≠ one slide
Whole-slide imaging tiles many FOVs together
Per-FOV (local) engines run on each tile
Fast and parallel, with a boundary caveat
Cross-FOV (global) engines treat the slide as one image
Slower, but objects spanning boundaries stay whole
Boundary artifacts where tiles meet
FOV edges leave fingerprints
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