Head-mounted display having an image sensor array
Head-mounted Displays (HMDs) are commonly used for virtual reality, mixed reality, and augmented reality. HMDs are, by definition, worn on the head of a user to provide a display in the line of sight of the user. By viewing the display, the user is able to experience one of the aforementioned types of reality. Oftentimes, HMDs are configured to integrate live video captured from the user's perspective, especially in the case of the HMD providing augmented reality where a virtual environment is combined with video of the real world. The present disclosure provides a configuration for a HMD having an array of image sensors to accurately capture image data to form the live video from the user's perspective.
1. A head-mounted display (HMD), comprising:
an image sensor array, including:
a left portion of the image sensor array comprised of a plurality of left image sensors configured to capture image data to form live video from a perspective of a left eye of a user,
a right portion of the image sensor array comprised of a plurality of right image sensors configured to capture image data to form live video from a perspective of a right eye of the user,
wherein a principal axis of each left image sensor in the left portion of the image sensor array is positioned to intersect a middle of a lens of the left eye of the user, and
wherein a principal axis of each right image sensor in the right portion of the image sensor array is positioned to intersect a middle of a lens of the right eye of the user; and
a display for displaying the live video formed from the perspective of the left eye of the user and the live video formed from the perspective of the right eye of the user.
2. The head-mounted display of claim 1 , wherein the image data captured by each of the left image sensors is combined to form the live video from the perspective of the left eye of the user, and wherein the image data captured by each of the right image sensors is combined to form the live video from the perspective of the right eye of the user.
3. The head-mounted display of claim 1 , wherein the HMD integrates the live video from the perspective of the left eye of the user and the live video from the perspective of the right eye of the user with a virtual environment to provide a modified virtual reality, a mixed reality, or an augmented reality to the user via the display.
4. The head-mounted display of claim 1 , wherein each of the left image sensors and each of the right image sensors is an individual directed light sensor.
5. The head-mounted display of claim 1 , wherein the image sensor array is attached to the HMD at a location in front of the user's eyes.
6. The head-mounted display of claim 1 , wherein every pixel of the display of the HMD is mapped to a separate image sensor in the image sensor array.
7. The head-mounted display of claim 6 , wherein image data captured by each of the left image sensors and each of the right image sensors is used to color the pixel to which the image sensor is mapped.
8. The head-mounted display of claim 1 , wherein only a subset of pixels of the display of the HMD are mapped to a separate image sensor in the image sensor array.
9. The head-mounted display of claim 1 , wherein the HMD is calibrated for the user to determine a mapping between image sensors of the image sensor array and pixels of the display.
10. The head-mounted display of claim 9 , wherein the calibration measures the iris positions of the user, and the mapping is based on the iris positions of the user.
11. A head-mounted display (HMD), comprising:
an image sensor array, including:
a left portion of the image sensor array comprised of a plurality of left image sensors configured to capture image data to form live video from a perspective of a left eye of a user, and
a right portion of the image sensor array comprised of a plurality of right image sensors configured to capture image data to form live video from a perspective of a right eye of the user; and
a display for displaying the live video formed from the perspective of the left eye of the user and the live video formed from the perspective of the right eye of the user;
wherein only a subset of pixels of the display of the HMD are mapped to a separate image sensor in the image sensor array;
wherein image data captured by each of the left image sensors and each of the right image sensors is used to color the pixel to which the image sensor is mapped, and wherein each remaining pixel not mapped to a separate image sensor in the image sensor array is colored based on a color of one or more adjacent pixels to the remaining pixel.