Materials and methods for simulating focal shifts in viewers using large depth of focus displays
First Claim
1. A method for more accurately conveying depth in an image, comprising the steps of:
- (a) displaying an image to a viewer on a large depth of focus display;
(b) determining an accommodation for an eye of the viewer who is watching the image on the large depth of focus display; and
(c) displaying an image having an apparent focus plane that tracks the accommodation of the viewer, so that as the accommodation of the viewer watching the large depth of focus display changes, the image that is displayed is changed to more accurately convey depth in the image that is displayed.
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Abstract
A large depth of focus (DOF) display provides an image in which the apparent focus plane is adjusted to track an accommodation (focus) of a viewer'"'"'s eye(s) to more effectively convey depth in the image. A device is employed to repeatedly determine accommodation as a viewer'"'"'s gaze within the image changes. In response, an image that includes an apparent focus plane corresponding to the level of accommodation of the viewer is provided on the large DOF display. Objects that are not at the apparent focus plane are made to appear blurred. The images can be rendered in real-time, or can be pre-rendered and stored in an array. The dimensions of the array can each correspond to a different variable. The images can alternatively be provided by a computer controlled, adjustable focus video camera in real-time.
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Citations
41 Claims
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1. A method for more accurately conveying depth in an image, comprising the steps of:
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(a) displaying an image to a viewer on a large depth of focus display;
(b) determining an accommodation for an eye of the viewer who is watching the image on the large depth of focus display; and
(c) displaying an image having an apparent focus plane that tracks the accommodation of the viewer, so that as the accommodation of the viewer watching the large depth of focus display changes, the image that is displayed is changed to more accurately convey depth in the image that is displayed. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A system for more accurately conveying depth in an image, comprising:
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(a) a large depth of focus display;
(b) an image source that cooperates with the large depth of focus display to produce an image that can be viewed;
(c) a device that monitors at least one eye of a viewer to produce a signal indicative of an accommodation of said at least one eye;
(d) a computing device coupled to the image source and to the device, said computing device carrying out a plurality of functions, including;
(i) displaying the image to a viewer on the large depth of focus display;
(ii) determining an accommodation for an eye of a viewer who is watching the image on the large depth of focus display; and
(iii) displaying an image having an apparent focus plane that tracks the accommodation of the viewer, so that as the accommodation of the viewer watching the large depth of focus display changes, the image that is displayed is changed to more accurately convey depth in the image that is displayed. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41)
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Specification