A mobile computing device for adjusting a perspective of a captured image for display, the mobile computing device comprising: a display orientable towards a user of the mobile device; a camera system comprising a first camera and a second camera, wherein the first camera is a user-facing camera provided on the same side of the mobile computing device as the display and the second camera is an environment-facing camera positioned on an opposite side of the mobile computing device relative to the first camera,_the camera system to capture (i) a first image of the user of the mobile computing device with the first camera and (ii) a second image of a real-world environment of the mobile computing device with the second camera; an eye tracking module to determine a position of an eye of the user relative to the mobile computing device based on the first captured image; an object distance determination module to determine a distance of an object in the real-world environment relative to the mobile computing device based on the second captured image; and an image projection module to generate a back projection image of the real-world environment captured by the second camera to the display based on the determined distance of the object in the real-world environment relative to the mobile computing device, the determined position of the user's eye relative to the mobile computing device, and at least one device parameter of the mobile computing device such that the back projection image includes the same visual content as what is occluded by the mobile computing device viewed from the same perspective as the user, the device being characterised in that to generate the back projection comprises to: determine an angular size of the mobile computing device from a perspective of the user; determine a distance of the object in the real-world environment relative to the user; determine a region of the object occluded by the mobile computing device from the user's perspective; determine a corrected zoom magnitude of the second camera based on the determined region of the object occluded by the mobile computing device and the distance of the object relative to the mobile computing device; and generate a back projection image based on the corrected zoom magnitude for display on the display of the mobile computing device. a display orientable towards a user of the mobile device; a camera system comprising a first camera and a second camera, wherein the first camera is a user-facing camera provided on the same side of the mobile computing device as the display and the second camera is an environment-facing camera positioned on an opposite side of the mobile computing device relative to the first camera,_the camera system to capture (i) a first image of the user of the mobile computing device with the first camera and (ii) a second image of a real-world environment of the mobile computing device with the second camera; an eye tracking module to determine a position of an eye of the user relative to the mobile computing device based on the first captured image; an object distance determination module to determine a distance of an object in the real-world environment relative to the mobile computing device based on the second captured image; and an image projection module to generate a back projection image of the real-world environment captured by the second camera to the display based on the determined distance of the object in the real-world environment relative to the mobile computing device, the determined position of the user's eye relative to the mobile computing device, and at least one device parameter of the mobile computing device such that the back projection image includes the same visual content as what is occluded by the mobile computing device viewed from the same perspective as the user, the device being characterised in that to generate the back projection comprises to: determine an angular size of the mobile computing device from a perspective of the user; determine a distance of the object in the real-world environment relative to the user; determine a region of the object occluded by the mobile computing device from the user's perspective; determine a corrected zoom magnitude of the second camera based on the determined region of the object occluded by the mobile computing device and the distance of the object relative to the mobile computing device; and generate a back projection image based on the corrected zoom magnitude for display on the display of the mobile computing device.