Localized Dimming at Wearable Optical System
Described herein are systems and methods that provide localized dimming of world light emanating from world light sources. An optical system can include left and right dimmers. The optical system can also include left and right cameras configured to capture a left and right brightness images. The optical system can generate a 3D brightness source map based on the left and right brightness images, and generate left and right 2D brightness maps based on the 3D brightness source map. The optical can compute left and right dimming values for the left and right dimmers based on the left and right 2D brightness maps, and adjust the left and right dimmers to reduce an intensity of the world light.
1 . A method of operating an optical system, the method comprising:
receiving, at the optical system, light associated with a world object;
capturing a left brightness image and a right brightness image using a left camera and a right camera of the optical system, respectively;
generating a 3D brightness source map based on the left brightness image and the right brightness image;
generating a left 2D brightness map and a right 2D brightness map based on the 3D brightness source map;
computing left dimming values and right dimming values based on the left 2D brightness map and the right 2D brightness map, respectively; and
adjusting a left dimmer and a right dimmer of the optical system based on the left dimming values and the right dimming values, respectively, so as to reduce an intensity of the light associated with the world object.
2 . The method of claim 1 , further comprising:
projecting virtual image light onto a left eyepiece and a right eyepiece of the optical system.
3 . The method of claim 2 , wherein the left dimmer and the right dimmer are positioned on a world side of the left eyepiece and the right eyepiece, respectively.
4 . The method of claim 2 , wherein the left dimmer and the right dimmer are positioned on a user side of the left eyepiece and the right eyepiece, respectively.
5 . The method of claim 1 , wherein the left camera and the right camera directly capture multi-channel images that are converted into the left brightness image and a right brightness image, respectively.
6 . The method of claim 1 , wherein the left camera and the right camera directly capture the left brightness image and the right brightness image, respectively.
7 . The method of claim 1 , wherein the left dimming values and the right dimming values indicate portions of a field of view of the optical system that are to be at least partially dimmed by the left dimmer and the right dimmer, respectively.
8 . The method of claim 1 , wherein the 3D brightness source map is further generated based on a predetermined distance between the left camera and the right camera.
9 . The method of claim 1 , wherein generating the left 2D brightness map and the right 2D brightness map based on the 3D brightness source map includes predicting positions of a user's left eye and a user's right eye, respectively, with respect to the 3D brightness source map when the optical system is in use.
10 . A non-transitory computer-readable medium comprising instructions that, when executed by one or more processors, cause the one or more processors to perform operations for operating an optical system, the operations comprising:
capturing a left brightness image and a right brightness image using a left camera and a right camera of the optical system based on receiving light associated with a world object, respectively;
generating a 3D brightness source map based on the left brightness image and the right brightness image;
generating a left 2D brightness map and a right 2D brightness map based on the 3D brightness source map;
computing left dimming values and right dimming values based on the left 2D brightness map and the right 2D brightness map, respectively; and
adjusting a left dimmer and a right dimmer of the optical system based on the left dimming values and the right dimming values, respectively, so as to reduce an intensity of the light associated with the world object.
11 . The non-transitory computer-readable medium of claim 10 , wherein the operations further comprise:
projecting virtual image light onto a left eyepiece and a right eyepiece of the optical system.
12 . The non-transitory computer-readable medium of claim 11 , wherein the left dimmer and the right dimmer are positioned on a world side of the left eyepiece and the right eyepiece, respectively.
13 . The non-transitory computer-readable medium of claim 10 , wherein the left camera and the right camera directly capture multi-channel images that are converted into the left brightness image and a right brightness image, respectively.
14 . The non-transitory computer-readable medium of claim 10 , wherein the left dimming values and the right dimming values indicate portions of a field of view of the optical system that are to be at least partially dimmed by the left dimmer and the right dimmer, respectively.
15 . The non-transitory computer-readable medium of claim 10 , wherein the 3D brightness source map is further generated based on a predetermined distance between the left camera and the right camera.
16 . The non-transitory computer-readable medium of claim 10 , wherein generating the left 2D brightness map and the right 2D brightness map based on the 3D brightness source map includes predicting positions of a user's left eye and a user's right eye, respectively, with respect to the 3D brightness source map when the optical system is in use.
17 . An optical system comprising,
a left camera and a right camera configured to capture a left brightness image and a right brightness image, respectively;
a left dimmer and a right dimmer configured to reduce an intensity of light associated with a world object in accordance with left dimming values and right dimming values, respectively; and
one or more processors communicatively coupled to the left camera, the right camera, the left dimmer, and the right dimmer, wherein the one or more processors are configured to:
generate a 3D brightness source map based on the left brightness image and the right brightness image;
generate a left 2D brightness map and a right 2D brightness map based on the 3D brightness source map;
compute the left dimming values and the right dimming values based on the left 2D brightness map and the right 2D brightness map, respectively; and
adjust the left dimmer and the right dimmer based on the left dimming values and the right dimming values, respectively, so as to reduce the intensity of the light associated with the world object.
18 . The optical system of claim 17 , further comprising:
a left eyepiece and a right eyepiece in alignment with the left dimmer and the right dimmer, respectively.
19 . The optical system of claim 18 , wherein the one or more processors are configured to project virtual image light onto the left eyepiece and the right eyepiece.
20 . The optical system of claim 18 , wherein the left dimmer and the right dimmer are positioned on a world side of the left eyepiece and the right eyepiece, respectively.