Method of displaying an image on a see-through display

An imaging system for displaying an image on a see-through display, the imaging system comprising means for:

• obtaining a first matrix of electromagnetic radiation of an object, the first matrix comprising first matrix elements representing radiation intensity values of corresponding locations of the object;
• dividing the first matrix into a second matrix representing a first subset of the radiation intensity values below or equal to a predefined threshold, and a third matrix representing a second subset of the radiation intensity values above the predefined threshold;
• generating a first grayscale image with an enhanced contrast representing the first subset of the radiation intensity values from the second matrix;
• colouring the first grayscale image with a first colourmap to obtain a first colour image;
• generating a second grayscale image representing the second subset of the radiation intensity values;
• colouring the second grayscale image with a second colourmap, which is different from the first colourmap, to obtain a second colour image;
• combining the first colour image and the second colour image to obtain a combined colour image of the same size and shape as the first colour image or the second colour image;
• and
• displaying the combined colour image on the see-through display.

A system for obtaining and displaying an image, comprising:

• a protective helmet configured to be worn by a user;
• a thermal sensor installed on a front part of the protective helmet and configured to capture a first matrix of radiation intensity values;
• a see-through display mounted to the protective helmet and arranged in a field of view of the user;
• a data processing unit configured to:
• divide the first matrix into a second matrix representing a first subset of the radiation intensity values below or equal to a predefined threshold, and a third matrix representing a second subset of the radiation intensity values above the predefined threshold,
• generate a first grayscale image with an enhanced contrast representing the first subset of the radiation intensity values from the second matrix,
• colour the first grayscale image with a first colourmap to obtain a first colour image,
• generate a second grayscale image representing the second subset of the radiation intensity values,
• colour the second grayscale image with a second colourmap, which is different from the first colourmap, to obtain a second colour image,
• combine the first colour image and the second colour image to obtain a combined colour image of the same size and shape as the first colour image or the second colour image, and
• display the combined colour image on the see-through display.