A temporal alignment system and method for example for detecting temporal misalignment in video frames when the frames are divided for transport using a signal divider for dividing a single signal S into portions S.sub.1 . . . S.sub.N and using average picture level in determining whether data sets within a particular frame are misaligned.

Image display apparatus and methods may use a single imaging element such as a digital mirror device (DMD) to spatially modulate plural color channels. A color channel may include a light steering element such as a phase modulator. Steered light from a light steering element may be combined with or replaced by additional light to better display bright images. These technologies may be provided together or applied individually.

A temporal alignment system and method for example for detecting temporal misalignment in video frames when the frames are divided for transport using a signal divider for dividing a single signal S into N signal portions S.sub.1 . . . S.sub.N and using average picture level in determining whether data sets within a particular frame are misaligned.

Embodiments of the invention describe apparatuses, systems and methods for dynamic projector calibration. Embodiments of the invention execute operations for capturing, via an image sensor included in a projector device, image data of an area around the projector device. Said image sensor captures 3D distance information as well as image pixel information of the surrounding area. A projection area is selected based (in part) on surface properties of the projection area determined from the image data. The projector may be calibrated (e.g., projection brightness, color balance, angle, etc.) based on the captured image data. A user I/O interface is projected onto the selected projection area, and the projector may be further (i.e., dynamically) calibrated based on captured image data of the projected user I/O interface.

A first derived matrix of transport coefficients and a second derived matrix of transport coefficients are derived from a primary matrix of transport coefficients. Each of the transport coefficients describes transport of a respective image forming element from a first position onto one or more image forming elements at a second position. An approximate inverse of the first derived matrix is ascertained. A modified version of a projection image is determined from the projection image, the approximated inverse of the first derived matrix, and the second derived matrix. The modified version of the projection image is rendered from the first position onto a physical medium at the second position.

A method of displaying an image using at least a first projector and a second projector includes projecting a calibration pattern using the first projector, the calibration pattern being embedded in a first portion of an image projected by the first projector. The method determines a contribution of the second projector to projecting a second portion of the image to an overlap area, the overlap area having a contribution from the first and second projectors, wherein the contribution is an intensity of a color channel. The determined contribution of the second projector to the overlap area is modified to allow the calibration pattern of the first projector to be detectable to a capture device, the modification having a pattern corresponding to the calibration pattern. The image is then displayed using the first projector and the modified contribution of the second projector.

Technologies for projecting a noncontinuous image onto at least a portion of a projection region using a projector of a projection device. The projection device is configured to determine one or more cut-out areas of the projection region. Each cut-out area defines an area within the projection region on which a corresponding portion of the image is not to be projected by the projector of the projection device. The projection device is further configured to update the projection region based on the cut-out area(s) and project, via the projector, the image onto the updated projection region, wherein no portion of the image is projected on cut-out area(s). Other embodiments are described and claimed.

An image display apparatus betters adjustment precision in the multi-projection in which two projection images are combined so that the images partially overlap each other. A display apparatus configuring an image projection system configured to project an image by combining on a screen a plurality of projection images so that the images partially overlap each other, includes a transformation unit configured to perform a geometrical transformation on a projection image, and a setting unit configured to set a parameter of the transformation by the transformation unit based on a relation between a position of an overlap region in a projection image obtained before the transformation by the transformation unit is performed, and a position of the overlap region in the projection image obtained after the transformation is performed, wherein an amount or value of the transformation is changed according to the position of a vertex of the overlap region.