Numerical control apparatus for automated cutting of a sheet of material or of multiple superimposed sheets , comprising: - a cutting chamber equipped with an inlet and an outlet , said cutting chamber being configured to house at least one portion of the sheet lying on a plane (α); - cutting means active within said cutting chamber to perform the cutting of said sheet according to a predefined pattern; - conveying means adapted to feed the sheet into said cutting chamber in a forward direction (A) along a longitudinal direction (Y); - holding or retaining means (10; 115) active on said sheet in a combined manner with said conveying means to ensure the stability of said sheet during the cutting operation of said cutting means ; - a control unit (U) configured to control said apparatus , wherein the apparatus is configured to process indifferently a hide, a fabric or a synthetic material as a single sheet or as a multilayer of sheets , without modifying said forward direction (A), said apparatus further comprising a crosspiece above said cutting chamber and an artificial vision system intended to acquire an image of the sheet to plan the cutting operations thereon, said apparatus being characterized in that said artificial vision system comprises at least one downstream image acquisition device inserted in said cutting chamber and associated with said crosspiece and at least one upstream image acquisition device , arranged upstream with respect to the crosspiece in a raised portion of the cutting chamber . - a cutting chamber equipped with an inlet and an outlet , said cutting chamber being configured to house at least one portion of the sheet lying on a plane (α); - cutting means active within said cutting chamber to perform the cutting of said sheet according to a predefined pattern; - conveying means adapted to feed the sheet into said cutting chamber in a forward direction (A) along a longitudinal direction (Y); - holding or retaining means (10; 115) active on said sheet in a combined manner with said conveying means to ensure the stability of said sheet during the cutting operation of said cutting means ; - a control unit (U) configured to control said apparatus , wherein the apparatus is configured to process indifferently a hide, a fabric or a synthetic material as a single sheet or as a multilayer of sheets , without modifying said forward direction (A), said apparatus further comprising a crosspiece above said cutting chamber and an artificial vision system intended to acquire an image of the sheet to plan the cutting operations thereon, said apparatus being characterized in that said artificial vision system comprises at least one downstream image acquisition device inserted in said cutting chamber and associated with said crosspiece and at least one upstream image acquisition device , arranged upstream with respect to the crosspiece in a raised portion of the cutting chamber . wherein the apparatus is configured to process indifferently a hide, a fabric or a synthetic material as a single sheet or as a multilayer of sheets , without modifying said forward direction (A), said apparatus further comprising a crosspiece above said cutting chamber and an artificial vision system intended to acquire an image of the sheet to plan the cutting operations thereon, said apparatus being characterized in that said artificial vision system comprises at least one downstream image acquisition device inserted in said cutting chamber and associated with said crosspiece and at least one upstream image acquisition device , arranged upstream with respect to the crosspiece in a raised portion of the cutting chamber . <EOS>