Patent ID: 8384783

Claim:
An IR camera comprising: a thermal radiation capturing arrangement for capturing thermal radiation of an imaged view in response to an input control unit(s) receiving inputs from a user of the IR camera; a processing unit arranged to process the thermal radiation data (T x,y ) in order for the thermal radiation data (T x,y ) to be displayed by an IR camera display as thermal images; and an IR camera display arranged to display thermal images to a user of the IR camera; wherein the processing unit is further arranged to: determine at least one temperature reference value (T rad,env , T conv,env ) representing the temperature of the surrounding environment of the imaged view; calculate at least one output power value (PD x,y ) indicative of an amount of energy dissipated in a part of the imaged view by using the temperature value of the thermal radiation data (T x,y ) corresponding to said part of the imaged view and the at least one determined temperature reference value (T rad,env , T conv,env ); determine a first subset (T x,y obj ) of the thermal radiation data (T x,y ) as a thermal image object area representing an object in the imaged view for which an output power value (P TOT obj ) is to be determined; and calculate an object output power value (P TOT obj ) indicative of the amount of energy dissipated from the object in the imaged view based upon output power values (PD x,y ) of the determined thermal image object area in the thermal radiation data (T x,y ).