Abstract: A curved narrowband illuminant display is provided. A head mounted display is provided that includes a first lens having a first curvature. The first lens is focused on the curved display, and the display has a curvature such that the field curvature of the lens is corrected by the curvature of the display. In addition, a coherent fiber optic bundle sheet may be mounted on the display, wherein the coherent fiber optic bundle sheet has a curvature such that the field curvature of the lens is corrected by the curvature of the coherent fiber optic bundle sheet. According to another aspect, when a planar image is received, distortion for red, green, and blue images that comprise the planar image may be generated, undistorted red, green, and blue images may be generated, and the undistorted red, green, and blue images may be displayed.

Abstract: A system that comprises a receiver port to receive lens system design specifications; and a processor to: select a lens system type that includes one or more preliminary lenses, the selecting based, at least in part, on the lens system design specifications; from a lens database, select one or more catalog lenses to add to or replace the one or more preliminary lenses of the lens system type to construct a lens system; vary distances between or among the one or more catalog lenses and/or the one or more preliminary lenses of the lens system; and as the distances vary, determine optical behavior of the lens system.

Abstract: Techniques for fabricating a semiconductor die having a curved surface can include placing a substantially flat semiconductor die in a recess surface of a concave mold such that corners or edges of the semiconductor die are unconstrained or are the only portions of the semiconductor die in physical contact with the concave mold. The semiconductor die can include through-die cut lines that can lead to substantially less tension in the semiconductor die as compared to the case where the semiconductor die does not include through-die cut lines. Accordingly, such through-die cut lines can allow for achieving relatively large curvatures.

Abstract: The subject disclosure is directed towards a curved image sensor that is rotated in one or more rotational directions to compensate for camera movement, e.g., camera shake. In one aspect, sensors such as gyroscopes output camera movement data, which a controller uses to rotate the curved (e.g., hemispherical) image sensor about its center of curvature, e.g., via signals to electrical and/or magnetic movement mechanisms. Image processing may be used by the controller to rotate the image sensor.

Abstract: A method and system for foveated image rendering are provided herein. The method includes tracking a gaze point of a user on a display device and generating a specified number of eccentricity layers based on the gaze point of the user. The method also includes antialiasing the eccentricity layers to remove artifacts, rendering a foveated image based on the eccentricity layers, and displaying the foveated image to the user via the display device.

Abstract: The subject disclosure is directed towards a curved image sensor that is rotated in one or more rotational directions to compensate for camera movement, e.g., camera shake. In one aspect, sensors such as gyroscopes output camera movement data, which a controller uses to rotate the curved (e.g., hemispherical) image sensor about its center of curvature, e.g., via signals to electrical and/or magnetic movement mechanisms. Image processing may be used by the controller to rotate the image sensor.

Abstract: In some examples, techniques and architectures for operating a device that may be wearable, such as a head-mounted device, may be used for virtual reality applications. A processor of the device may operate by dynamically tracking the cornea, and thus the gaze direction, of a user's eyes. By tracking the gaze direction, retinal velocity of a display image projected onto the retina, measured in the retina coordinate frame may be computed. Display times of image frames viewable by the user may be modified based on the retinal velocity.

Abstract: Techniques and architectures may involve operating a wearable device, such as a head-mounted device, which may be used for virtual reality applications. A processor of the wearable device may operate by dynamically tracking the precise geometric relationship between the wearable device and a user's eyes. Dynamic tracking of eye gaze may be performed by calculating corneal and eye centers based, at least in part, on relative positions of points of light reflecting from the cornea of the eyes.

Abstract: A system that comprises a receiver port to receive lens system design specifications; and a processor to: select a lens system type that includes one or more preliminary lenses, the selecting based, at least in part, on the lens system design specifications; from a lens database, select one or more catalog lenses to add to or replace the one or more preliminary lenses of the lens system type to construct a lens system; vary distances between or among the one or more catalog lenses and/or the one or more preliminary lenses of the lens system; and as the distances vary, determine optical behavior of the lens system.

Abstract: The subject disclosure is directed towards lenses for curved surfaces, including multi-element lens assemblies. In one or more implementations, an object-side meniscus lens is coupled to an image/curved surface side subassembly including a biconvex lens. The subassembly may comprise a single biconvex lens or a biconvex lens coupled to a negative meniscus lens.

Abstract: Techniques for fabricating an image sensor chip having a curved surface include placing a bending substrate on a first surface of an imaging sensor chip. The first surface of the imaging sensor chip includes light sensors to generate electrical signals in response to receiving light. Fabricating also includes bending the bending substrate so as to impart forces on the image sensor chip to produce a curved imaging sensor chip. A second surface of the curved imaging sensor chip may be adhered to a backside substrate. The second surface is opposite the first surface. The bending substrate may be removed from the first surface of the imaging sensor chip.

Abstract: The description relates to enhancing images. One device includes a lens configured to focus images on an image sensor. The device also includes point spread function (PSF) lens data relating to manufacturing specifications of the lens and a PSF measurement of the lens associated with a test image of a planar calibration pattern at a single depth of field.

Abstract: The described implementations relate to enhancing images. One system includes a lens configured to focus an image on an image sensor. The image sensor is configured to capture the image. The model of the lens can be known to the system. The system can also include an image enhancement component configured to receive the captured image and to utilize a simulated blur kernel of the known model to produce an enhanced image.

Abstract: The subject disclosure is directed towards lenses for curved surfaces, including multi-element lens assemblies. In one or more implementations, an object-side meniscus lens is coupled to an image/curved surface side subassembly including a biconvex lens. The subassembly may comprise a single biconvex lens or a biconvex lens coupled to a negative meniscus lens.

Abstract: The subject disclosure is directed towards a curved image sensor that is rotated in one or more rotational directions to compensate for camera movement, e.g., camera shake. In one aspect, sensors such as gyroscopes output camera movement data, which a controller uses to rotate the curved (e.g., hemispherical) image sensor about its center of curvature, e.g., via signals to electrical and/or magnetic movement mechanisms. Image processing may be used by the controller to rotate the image sensor.

Abstract: A method and system for foveated image rendering are provided herein. The method includes tracking a gaze point of a user on a display device and generating a specified number of eccentricity layers based on the gaze point of the user. The method also includes antialiasing the eccentricity layers to remove artifacts, rendering a foveated image based on the eccentricity layers, and displaying the foveated image to the user via the display device.

Abstract: A control system is described for controlling the operation of a target system, such as a data center. The control system uses a prediction module to predict demand for resources of the target system for future time steps. The control system then uses a transition determination module to determine state transitions within the target system to address the predicted demand. Each state transition describes a number of units to be advanced from a first state, at a first time step, to a second state, at a second time step. The control system then commences those state transitions which begin in the current step, and then repeats the predicting and determining for a next time step. The transition determination module can determine the state transitions by operating on an objective function that includes a demand difference component and a cost component, as subject to a set of conservation equations.

Abstract: The subject disclosure is directed towards a curved image sensor that is rotated in one or more rotational directions to compensate for camera movement, e.g., camera shake. In one aspect, sensors such as gyroscopes output camera movement data, which a controller uses to rotate the curved (e.g., hemispherical) image sensor about its center of curvature, e.g., via signals to electrical and/or magnetic movement mechanisms. Image processing may be used by the controller to rotate the image sensor.

Abstract: The subject disclosure is directed towards an image sensor that is controllable curved to adapt for differences in lens focal lengths. Variable data such as focal length data, measured curvature data and/or image quality data is received at a curve controller that curves the sensor based upon the variable data. In one aspect, a camera is provided with a lens having a variable focal length and a sensor capable of being dynamically curved. A curve controller receives image quality data and iteratively uses the image quality data to adjust the curvature to attempt to increase the image quality of a subsequent image to be captured.

Abstract: The description relates to enhancing images. One device includes a lens configured to focus images on an image sensor. The device also includes point spread function (PSF) lens data relating to manufacturing specifications of the lens and a PSF measurement of the lens associated with a test image of a planar calibration pattern at a single depth of field.