Correction of ghost artifacts in extended reality systems

A computer system that corrects a ghost artifact of a hologram that is displayed by the computer system, where the ghost artifact of the hologram occurs as a result of display light for the hologram back-reflecting off of one or more optical elements of the computer system, resulting in generation of the ghost artifact, and where the ghost artifact has a faded luminance relative to a luminance of the hologram, said computer system comprising:

• a processor system;
• and
• a storage system that stores instructions that are executable by the processor system to cause the computer system to:
• obtain an image of a scene in which the computer system is operating, wherein a region of the image portrays at least some of a field of view (FOV) of a display of the computer system;
• determine a location, within the display's FOV, where the ghost artifact is displayed or is likely to be displayed;
• determine a contrast between the ghost artifact and an overlapping region of the image where the ghost artifact would overlap the image based on an alignment between (i) the image and (ii) the location in the display's FOV where the ghost artifact is displayed or is likely to be displayed;
• determine that the contrast exceeds a ghost visibility threshold;
• and
• reduce the luminance of the hologram, resulting in the contrast between the ghost artifact and the overlapping region of the image falling below the ghost visibility threshold and further resulting in the ghost artifact substantially visually merging with the scene.

An extended reality (ER) system that corrects a ghost artifact of a hologram that is displayed by the ER system, where the ghost artifact of the hologram occurs as a result of display light for the hologram back-reflecting off of one or more optical elements of the ER system, resulting in generation of the ghost artifact, and where the ghost artifact has a faded luminance relative to a luminance of the hologram, said ER system comprising:

• a processor system;
• and
• a storage system that stores instructions that are executable by the processor system to cause the ER system to:
• obtain an image of a scene in which the ER system is operating, wherein a region of the image portrays at least some of a field of view (FOV) of a display of the ER system;
• determine a location, within the display's FOV, where the ghost artifact is displayed or is likely to be displayed;
• determine a contrast between the ghost artifact and an overlapping region of the image where the ghost artifact would overlap the image based on an alignment between (i) the image and (ii) the location in the display's FOV where the ghost artifact is displayed or is likely to be displayed;
• determine that the contrast exceeds a ghost visibility threshold;
• and
• reduce the luminance of the hologram, resulting in the contrast between the ghost artifact and the overlapping region of the image falling below the ghost visibility threshold and further resulting in the ghost artifact substantially visually merging with the scene.