Abstract: Described examples include an integrated circuit having depth fusion engine circuitry configured to receive stereoscopic image data and, in response to the received stereoscopic image data, generate at least: first and second focal perspective images for viewing by a first eye at multiple focal distances; and third and fourth focal perspective images for viewing by a second eye at multiple focal distances. The integrated circuit further includes display driver circuitry coupled to the depth fusion engine circuitry and configured to drive a display device for displaying at least the first, second, third and fourth focal perspective images.

Abstract: In described examples, structured light elements are projected for display on a projection screen surface. The projected light elements are captured for determining a three-dimensional characterization of the projection screen surface. A three-dimensional characterization of the projection screen surface is generated in response to the displayed structured light elements. An observer perspective characterization of the projection screen surface is generated in response to an observer position and the three-dimensional characterization. A depth for at least one point of the observer perspective characterization is determined in response to depth information of respective neighboring points of the at least one point of the observer perspective characterization. A compensated image can be projected on the projection screen surface in response to the observer perspective characterization and depth information of respective neighboring points of the at least one point of the observer perspective characterization.

Abstract: Described examples include an integrated circuit having depth fusion engine circuitry configured to receive stereoscopic image data and, in response to the received stereoscopic image data, generate at least: first and second focal perspective images for viewing by a first eye at multiple focal distances; and third and fourth focal perspective images for viewing by a second eye at multiple focal distances. The integrated circuit further includes display driver circuitry coupled to the depth fusion engine circuitry and configured to drive a display device for displaying at least the first, second, third and fourth focal perspective images.

Abstract: In described examples, structured light elements are projected for display on a projection screen surface. The projected light elements are captured for determining a three-dimensional characterization of the projection screen surface. A three-dimensional characterization of the projection screen surface is generated in response to the displayed structured light elements. An observer perspective characterization of the projection screen surface is generated in response to an observer position and the three-dimensional characterization. A depth for at least one point of the observer perspective characterization is determined in response to depth information of respective neighboring points of the at least one point of the observer perspective characterization. A compensated image can be projected on the projection screen surface in response to the observer perspective characterization and depth information of respective neighboring points of the at least one point of the observer perspective characterization.

Abstract: In described examples, a geometric progression of structured light elements is iteratively projected for display on a projection screen surface. The displayed progression is for determining a three-dimensional characterization of the projection screen surface. Points of the three-dimensional characterization of a projection screen surface are respaced in accordance with a spacing grid and an indication of an observer position. A compensated depth for each of the respaced points is determined in response to the three-dimensional characterization of the projection screen surface. A compensated image can be projected on the projection screen surface in response to the respaced points and respective compensated depths.

Abstract: In described examples, structured light elements are projected for display on a projection screen surface. The projected light elements are captured for determining a three-dimensional characterization of the projection screen surface. A three-dimensional characterization of the projection screen surface is generated in response to the displayed structured light elements. An observer perspective characterization of the projection screen surface is generated in response to an observer position and the three-dimensional characterization. A depth for at least one point of the observer perspective characterization is determined in response to depth information of respective neighboring points of the at least one point of the observer perspective characterization. A compensated image can be projected on the projection screen surface in response to the observer perspective characterization and depth information of respective neighboring points of the at least one point of the observer perspective characterization.

Abstract: In described examples, structured light elements are projected for display on a projection screen surface. The projected light elements are captured for determining a three-dimensional characterization of the projection screen surface. A three-dimensional characterization of the projection screen surface is generated in response to the displayed structured light elements. An observer perspective characterization of the projection screen surface is generated in response to an observer position and the three-dimensional characterization. A depth for at least one point of the observer perspective characterization is determined in response to depth information of respective neighboring points of the at least one point of the observer perspective characterization. A compensated image can be projected on the projection screen surface in response to the observer perspective characterization and depth information of respective neighboring points of the at least one point of the observer perspective characterization.

Abstract: In described examples, a geometric progression of structured light elements is iteratively projected for display on a projection screen surface. The displayed progression is for determining a three-dimensional characterization of the projection screen surface. Points of the three-dimensional characterization of a projection screen surface are respaced in accordance with a spacing grid and an indication of an observer position. A compensated depth for each of the respaced points is determined in response to the three-dimensional characterization of the projection screen surface. A compensated image can be projected on the projection screen surface in response to the respaced points and respective compensated depths.

Abstract: A system and method for facilitating keystone correction in a given model of projector having an attached camera is disclosed. System calibration determines intrinsic and extrinsic parameters of the projector and camera; then control points are identified within a three-dimensional space in front of a screen. The three-dimensional space defines a throw range and maximum pitch and yaw offsets for the projector/screen combination. At each control point, the projector projects a group of structured light elements on the screen and the camera captures an image of the projected pattern. These images are used to create three-dimensional look-up tables that identify a relationship between each image and at least one of (i) pitch and yaw offset angles for the respective control point and (ii) a focal length and a principal point for the respective control point. The given model projectors use the tables in effectuating keystone correction.

Abstract: A system and method for facilitating keystone correction in a given model of projector having an attached camera is disclosed. System calibration determines intrinsic and extrinsic parameters of the projector and camera; then control points are identified within a three-dimensional space in front of a screen. The three-dimensional space defines a throw range and maximum pitch and yaw offsets for the projector/screen combination. At each control point, the projector projects a group of structured light elements on the screen and the camera captures an image of the projected pattern. These images are used to create three-dimensional look-up tables that identify a relationship between each image and at least one of (i) pitch and yaw offset angles for the respective control point and (ii) a focal length and a principal point for the respective control point. The given model projectors use the tables in effectuating keystone correction.

Abstract: In described examples, solid field patterns are projected onto screens via at least one projector. The screens include user-defined sub-screens. The projected solid field patterns are image captured as imaged solid patterns via at least one camera. For camera perspective planes of the at least one camera, first corner coordinates of the sub-screens are determined, based on differences in pixel values of the imaged solid patterns. Homography matrices are associated with the camera perspective planes and associated with projector perspective planes of the at least one projector. For the projector perspective planes, the first corner coordinates are transformed to second corner coordinates of the sub-screens, based on the homography matrices. Images are projected based on the second corner coordinates.

Abstract: A system and method for facilitating keystone correction in a given model of projector having an attached camera is disclosed. System calibration determines intrinsic and extrinsic parameters of the projector and camera; then control points are identified within a three-dimensional space in front of a screen. The three-dimensional space defines a throw range and maximum pitch and yaw offsets for the projector/screen combination. At each control point, the projector projects a group of structured light elements on the screen and the camera captures an image of the projected pattern. These images are used to create three-dimensional look-up tables that identify a relationship between each image and at least one of (i) pitch and yaw offset angles for the respective control point and (ii) a focal length and a principal point for the respective control point. The given model projectors use the tables in effectuating keystone correction.

Abstract: A system and method for facilitating keystone correction in a given model of projector having an attached camera is disclosed. System calibration determines intrinsic and extrinsic parameters of the projector and camera; then control points are identified within a three-dimensional space in front of a screen. The three-dimensional space defines a throw range and maximum pitch and yaw offsets for the projector/screen combination. At each control point, the projector projects a group of structured light elements on the screen and the camera captures an image of the projected pattern. These images are used to create three-dimensional look-up tables that identify a relationship between each image and at least one of (i) pitch and yaw offset angles for the respective control point and (ii) a focal length and a principal point for the respective control point. The given model projectors use the tables in effectuating keystone correction.

Abstract: A method of controlling micromirrors of reset groups of a spatial light modulator (SLM) digital micromirror array is disclosed. In a first reset operation, the positions of a first subgroup of micromirrors of a reset group are set based on a first portion of a first bitplane and the positions of a second subgroup of micromirrors of the same reset group are set based on a first portion of a second bitplane. Then, in a second reset operation, the positions of the first subgroup are set based on a second portion of the second bitplane and the positions of the second subgroup are set based on a second portion of a first bitplane. In one example, subsets of alternating rows of micromirrors of the same reset group are successively set according to alternating data corresponding to different ones of first and second bitplanes.