Jet decomposition in polygons. Top panel: Brγ-filter image of IRAS 20126+4104 obtained with LUCI1 and the AO system SOUL, overlaid with the polygons used for the photometry in the continuum. The adopted designation is labelled. We note that polygon S is composed of S1 and S2, and S1 is further subdivided into S1a and S1b. Bottom panel: pure H₂ line emission image of IRAS 20126+4104 obtained with LUCI1 and the AO system SOUL, overlaid with the polygons used for the jet photometry. The adopted designation is labelled. We note that polygon LLS is composed of LLS1 and LLS2, and LLN2 is subdivided into LLN2a and LLN2b.