Light field vision testing device, adjusted pixel rendering method therefor, and vision testing system and method using same
AssigneeEvolution Optiks Limited
InventorsDaniel Gotsch, Guillaume Lussier, Yaiza Garcia, Matej Goc, Raul Mihali
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Abstract
Described are various embodiments of a light field vision testing device, adjusted pixel rendering method and computer-readable medium therefor, and vision testing system and method using same. In one embodiment, a device or computer-implemented method is provided to dynamically adjust user perception of an input image to be rendered via a set of digital display pixels and a corresponding array of light field shaping elements until an optimal visual acuity level is identified.
Claims30
A device operable to dynamically adjust user perception of an input image, the device comprising:
- an array of digital display pixels;
- a corresponding array of light field shaping elements (LFSEs) shaping a light field emanating from said pixels;
- and
- a hardware processor operable on pixel data for the input image to output adjusted image pixel data to be rendered via said LFSEs to dynamically adjust user perception of the input image as rendered therethrough by:
- digitally mapping the input image on an adjusted image plane corresponding to a designated vision correction parameter associated with a given visual acuity level;
- for each given pixel, digitally:
- projecting an adjusted image ray trace between said given pixel and a user pupil location to intersect said adjusted image plane at a given adjusted image location given a direction of a light field emanated by said given pixel based on a given LFESE intersected thereby;
- and
- associating an adjusted image pixel value designated for said given adjusted image location with said given pixel based on said mapping;
- rendering each said given pixel according to said adjusted pixel value, thereby rendering a perceptively adjusted version of the input image that at least partially accommodates said given visual acuity level;
- and
- adjusting said designated vision correction parameter to accommodate for a distinct visual acuity level until an optimal visual acuity level is identified.
A subjective eye test device comprising:
- an array of digital display pixels;
- a corresponding array of light field shaping elements (LFSEs) shaping a light field emanating from said pixels;
- and
- a hardware processor operable on pixel data for a defined optotype to output adjusted image pixel data to be rendered via said LFSEs to dynamically adjust user perception of said defined optotype as rendered therethrough by:
- digitally mapping said defined optotype on an adjusted image plane corresponding to a designated vision correction parameter associated with a given visual acuity level;
- for each given pixel, digitally:
- projecting an adjusted image ray trace between said given pixel and a user pupil location to intersect said adjusted image plane at a given adjusted image location given a direction of a light field emanated by said given pixel based on a given LFESE intersected thereby;
- and
- associating an adjusted image pixel value designated for said given adjusted image location with said given pixel based on said mapping;
- and
- rendering each said given pixel according to said adjusted pixel value, thereby rendering a perceptively adjusted version of said defined optotype that at least partially accommodates said given visual acuity level;
- and
- adjusting said designated vision correction parameter to accommodate for a distinct visual acuity level until an optimal visual acuity level is identified.
A computer-implemented method, automatically implemented by one or more digital processors, to dynamically adjust user perception of an input image to be rendered by an array of digital display pixels via a corresponding array of light field shaping elements (LFSE), the method comprising:
- digitally mapping the input image on an adjusted image plane corresponding to a designated vision correction parameter associated with a given visual acuity level;
- for each given pixel, digitally:
- projecting an adjusted image ray trace between said given pixel and a user pupil location to intersect said adjusted image plane at a given adjusted image location given a direction of a light field emanated by said given pixel based on a given LFESE intersected thereby;
- and
- associating an adjusted image pixel value designated for said given adjusted image location with said given pixel based on said mapping;
- rendering each said given pixel according to said adjusted pixel value, thereby rendering a perceptively adjusted version of the input image that at least partially accommodates said given visual acuity level;
- and
- adjusting said designated vision correction parameter to accommodate for a distinct visual acuity level until an optimal visual acuity level is identified.
A non-transitory computer-readable medium comprising digital instructions to be implemented by one or more digital processors to dynamically adjust user perception of an input image to be rendered by an array of digital display pixels via a corresponding array of light field shaping elements (LFSE), by:
- digitally mapping the input image on an adjusted image plane corresponding to a designated vision correction parameter associated with a given visual acuity level;
- for each given pixel, digitally:
- projecting an adjusted image ray trace between said given pixel and a user pupil location to intersect said adjusted image plane at a given adjusted image location given a direction of a light field emanated by said given pixel based on a given LFESE intersected thereby;
- and
- associating an adjusted image pixel value designated for said given adjusted image location with said given pixel based on said mapping;
- rendering each said given pixel according to said adjusted pixel value, thereby rendering a perceptively adjusted version of the input image that at least partially accommodates said given visual acuity level;
- and
- adjusting said designated vision correction parameter to accommodate for a distinct visual acuity level until an optimal visual acuity level is identified.
Dependencies are inferred from the claim text.