A garment having a ventilated garment closure system including a vented zipper is provided. In the inelastic layer bonded to the elastic layer is formed with thermoplastic synthetic fiber, at least 80% by weight of stretchable fibers includes thermoplastic synthetic fiber containing lubricant of 0. These data signals and the STROBSTROB# signals are edge-aligned and transmitted through the same transmission architecture. The calculation unit is configured to compare the first image with one or more second images which are one or more images taken at a time point previous to the first time point, to calculate, as a second time point, a time point when the attention object appears in the continuous plurality of images.