An electronic device comprising: a processor ; and a memory coupled to the processor and comprising a computer readable storage medium having computer readable program instructions stored therein that are executable by the processor to perform operations comprising: determining a position and/or orientation of a sensor device , wherein the sensor device is arranged to capture data for a subject from the position and/or at the orientation; and based on the position and/or orientation that was determined , controlling creation of a three-dimensional, 3D, representation (150") of the subject from the data captured by the sensor device , wherein the position and/or orientation define a pose , and characterized in that controlling the creation comprises: identifying an accuracy of the pose that was determined ; and based on the accuracy of the pose , transitioning execution of computer readable program code that creates the 3D representation (150") of the subject between active and inactive states, and in that identifying the accuracy of the pose comprises: calculating a pose quality comprising a covariance metric for the pose ; and comparing the pose quality to a predetermined threshold . a processor ; and a memory coupled to the processor and comprising a computer readable storage medium having computer readable program instructions stored therein that are executable by the processor to perform operations comprising: determining a position and/or orientation of a sensor device , wherein the sensor device is arranged to capture data for a subject from the position and/or at the orientation; and based on the position and/or orientation that was determined , controlling creation of a three-dimensional, 3D, representation (150") of the subject from the data captured by the sensor device , wherein the position and/or orientation define a pose , and characterized in that controlling the creation comprises: identifying an accuracy of the pose that was determined ; and based on the accuracy of the pose , transitioning execution of computer readable program code that creates the 3D representation (150") of the subject between active and inactive states, determining a position and/or orientation of a sensor device , wherein the sensor device is arranged to capture data for a subject from the position and/or at the orientation; and based on the position and/or orientation that was determined , controlling creation of a three-dimensional, 3D, representation (150") of the subject from the data captured by the sensor device , wherein the position and/or orientation define a pose , and characterized in that controlling the creation comprises: identifying an accuracy of the pose that was determined ; and based on the accuracy of the pose , transitioning execution of computer readable program code that creates the 3D representation (150") of the subject between active and inactive states, identifying an accuracy of the pose that was determined ; and based on the accuracy of the pose , transitioning execution of computer readable program code that creates the 3D representation (150") of the subject between active and inactive states, calculating a pose quality comprising a covariance metric for the pose ; and comparing the pose quality to a predetermined threshold . <EOS>