Kufutshane ne-infrared I-Vein Acking isetyenziselwa ukuzama ukwandisa amandla ababoneleli bezempilo ukubona imithambo. Isebenzisa ukukhanya okukhanyayo okukufutshane ukudala imephu yemithambo. Umfanekiso ofunyenweyo emva koko uboniswe kwiscreen okanye eqikelelwe kulusu lomguli.