CALIBRATION RULER, CALIBRATION METHOD AND APPARATUS, AND DETECTION METHOD AND APPARATUS

The present application provides a calibration scale, a calibration method and apparatus, an image splicing method and apparatus, a detection method and apparatus, and a computer-readable storage medium. The calibration scale includes a scale body and at least two calibration pattern subsets arranged on the scale body along a first direction. The at least two calibration pattern subsets include a plurality of first calibration blocks arranged at spacings along the first direction and staggered along a second direction. Projections of a plurality of first calibration blocks in a calibration pattern subset along the first direction have a first overlapping area. Projections of at least two first overlapping areas along the first direction have a second overlapping area.