An image rendering apparatus includes a light source unit, an optical scanner, a scanner control unit configured to control a frequency for the optical scanner to scan the laser light in the main scanning direction, and a light source driving unit. The scanner control unit multiplies the frequency by n and the light source driving unit changes time intervals at which pixels are rendered on scanning lines in the main scanning direction to 1/nth and controls the light source unit in such a way that the light source unit renders a plurality of pixels corresponding to one scanning line at least once during n scans in the main scanning direction and in such a way that the light source unit will not render pixels on scanning line(s) other than the scanning lines on which the pixels have been rendered.

Dual and multi-modulator projector display systems and techniques are disclosed. In one embodiment, a projector display system comprises a light source; a controller, a first modulator, receiving light from the light source and rendering a halftone image of said the input image; a blurring optical system that blurs said halftone image with a Point Spread

Function (PSF); and a second modulator receiving the blurred halftone image and rendering a pulse width modulated image which may be projected to form the desired screen image. Systems and techniques for forming a binary halftone image from input image, correcting for misalignment between the first and second modulators and calibrating the projector system—e.g. over time—for continuous image improvement are also disclosed.

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.

Provided is an image display apparatus that projects an image with high contrast by use of a phase modulation technology. An image display apparatus includes a trained neural network model that estimates a phase modulation distribution corresponding to an output target image, a phase modulation section that performs phase modulation on incident light in reference to the phase modulation distribution estimated by the trained neural network model, a luminance modulation section that performs luminance modulation on phase modulated light output from the phase modulation section, and a control section that outputs, to a predetermined position, the incident light subjected to the phase modulation and the luminance modulation.

Systems and methods of rendering DCI-compliant image data on Enhanced Dynamic Range (EDR) display systems are disclosed. One embodiment of an EDR projector system comprises a first modulator and a second modulator. One method for rendering DCI-compliant image data on an EDR projector system comprises: receiving input image data, said image data comprising a plurality of image formats; determining whether the input image data comprises DCI image data; if the input image data comprises DCI image data, then performing dynamic range (DR) processing on the DCI image data; and rendering the dynamic range processed DCI image data on the EDR projector system. One DR processing method is to set the first modulator to a desired luminance level—e.g., fully ON or a ratio of DCI max luminance to the EDR max luminance. In addition, a desired minimum level of luminance may be set for the EDR projector.

A projection device includes a projection module and a first camera module. The projection device has a first optical axis and configured to form a projection area, wherein a projection of the first optical axis on an X-Z plane of the projection device is perpendicular to an X-Y plane on which the projection area is formed. The first camera module is disposed on a side of the projection module and includes a second optical axis, wherein the first camera module is configured to form a first shooting area, the second optical axis forms a first angle Δθ1 with respect to the first optical axis, the projection area at least partially overlaps the first shooting area to form an overlapping area, and the first angle Δθ1 is a function of a distance between the projection module and the first camera module.

A method for maintaining a light source at an ideal lux helps maintain a lux that is generated by at least one light source at a level that is equal or greater than an ideal lux. The light source may include a digital projector. The ideal lux is necessary to view an image under optimal conditions. The method enables a calculated and incremental increase of the lux generated by the light source to achieve the ideal lux. This incremental increase is correlated to an anticipated loss of lux by the light source. By incrementally increasing the amount of lux generated, a maximum lux capacity of the light source is not used; thereby increasing the lifespan of the light source and providing the viewer with a consistent, ideal brightness image for long periods without requiring excessive replacement of bulbs or maintenance on the light source.

A new projector design combines one spatial light modulator that affects only the phase of the illumination, and one spatial light modulator that only affects its amplitude (intensity). The phase-only modulator curves the wavefront of light and acts as a pre-modulator for a conventional amplitude modulator. This approach works with both white light and laser illumination, generating a coarse image representation efficiently, thus enabling, within a single image frame, significantly elevated highlights as well as darker black levels while reducing the overall light source power requirements.

Described are improved approaches to implement color sequential displays that can mitigate problems with conventional display technologies. Color-breakup is mitigated by modifying the original color channels and adding one or more additional color channels derived from the original ones.

Provided is a video generating device or the like capable of controlling a light source used to output an output image, said control being synchronized with the output image, without the addition of a control interface. A video generating device 200B according to one mode of embodiment of the present invention is provided with: a converting unit 213 which converts a control signal, which is generated on the basis of an output image and which controls a light source used to output the output image, into a control image, which is an image representing said control signal; a synthesizing unit 214 which synthesizes a synthesized image in which the control image is incorporated into a second region of an image including a first region, which is an image region including the output image, where said second region is different from said first region; a video signal generating unit 201 which converts the synthesized image into a video signal; and a transmitting unit 202 which transmits the video signal to a video output device 100 provided with: a control signal extracting unit 103 which, in response to receiving the video signal, extracts, as the control image, the second region of the synthesized image represented by the received video signal, and converts the extracted control image into a control signal; and an output unit 110 which outputs, as the output image, the first region of the image represented by the received video signal, while controlling the light source in accordance with the converted control signal.