Enhanced vision system (EVS) processing window tied to flight path

A method of providing a processed imaging sensor image on a head-up display (HUD) system for an aircraft, the method comprising:

• receiving, by a computer, aircraft sensor information comprising information representative of the flight path of the aircraft;
• receiving, by the computer, imaging sensor image information from an aircraft mounted imaging sensor, the imaging sensor having a pointing direction and a field of view, the computer defining a region of special processing within and smaller than the field of view and corresponding to a subset of the image information, wherein a second region defines a remainder of the field of view and corresponding to a remainder of the image information;
• generating an offset for the region of special processing by a program running on the computer, the offset being based on the flight path of the aircraft and the imaging sensor pointing direction;
• using the offset to cause the region of special processing to be moved within the field of view so that the region of special processing corresponds to a different subset of the image information;
• and
• conducting a processing activity on the imaging sensor information of the moved region of special processing and displaying the processed region corresponding to the different subset of the image information, wherein the processing activity applied to the region of special processing is not applied to the second region.

A head-up display (HUD) system for an aircraft, comprising:

• a means for receiving aircraft sensor information comprising information representative of the flight path of the aircraft;
• a means for receiving imaging sensor image information from an aircraft mounted imaging sensor, the imaging sensor having a pointing direction and a field of view;
• a means for generating an offset for a region of special processing by a program running on a computer, the computer defining the region of special processing within the field of view and corresponding to a subset of the image information and a second region defining a remainder of the field of view and corresponding to a remainder of the image information, the offset being based on the flight path of the aircraft and the imaging sensor pointing direction;
• a means for using the offset to cause the region of special processing to be moved within the field of view so that the region of special processing corresponds to a different subset of the image information;
• wherein the means for generating conducts a processing activity on the imaging sensor information of the moved region corresponding to the different subset of the image information and generates an image for display based on the processing, wherein the second region is not processed using the same processing activity applied to the region of special processing.

A display system for an aircraft, comprising:

• a computer receiving information representative of an aircraft flight path;
• a display unit, displaying information to a flight crew member;
• an imaging sensor coupled to the computer, the imaging sensor having a pointing direction and a field of view;
• a region of special processing defined within the imaging sensor field of view and corresponding to a subset of the image information, a second region defined by the remainder of the imaging sensor field of view and corresponding to a remainder of the image information;
• and
• a program running on the computer, the program determining an offset for the region of special processing, the offset based on the aircraft flight path and the imaging sensor pointing direction, the offset used in the computer to cause the region of special processing to be moved so that the region of special processing corresponds to a different subset of the image information based on the direction of the aircraft flight path, the computer conducting a processing activity on the imaging sensor information of the moved region of special processing corresponding to the different subset of the image information to generate an image for display on the display unit;
• wherein the second region is not subjected to the same processing activity as the region of special processing.