Unity Technologies Sf

Millie Maier

Peter M Hillman

Dejan Momcilovic

Kimball Darr Thurston, Iii

Kenneth Gimpelson

Luca Fascione

Joseph W Marks

Keith F Miller

Jonathan S Swartz

Carter Bart Sullivan

Lena Petrovic

The disclosed system modifies luminance of a display associated with a selective screen. The display provides a camera with an image having resolution higher than the resolution of the display by presenting multiple images while the selective screen enables light from different portions of the multiple images to reach the camera. The resulting luminance of the recorded image is lower than a combination of luminance values of the multiple images. The processor obtains a criterion indicating a property of the input image where image detail is unnecessary. The processor detects a region of the input image satisfying the criterion, and determines a region of the selective screen corresponding to the region of the input image. The processor increases the luminance of the display by disabling the region of the selective screen corresponding to the region of the input image.

Increasing resolution and luminance of a display

The processor obtains a third pixel value and a second pixel value of the display. The processor determines a desired pixel value range that exceeds the second pixel value of the display. The processor obtains a threshold between the third pixel value of the display and the second pixel value of the display. The processor obtains a function mapping the desired pixel value range to a range between the threshold and the second pixel value. The processor applies the first function to an input image prior to displaying the input image on the display. The display presents the image. Upon recording the presented image, the processor determines a region within the recorded image having a pixel value between the threshold and the second pixel value. The processor increases dynamic range of the recorded image by applying an inverse of the function to the pixel value of the region.

Increasing dynamic range of a virtual production display

The disclosed system and method can increase resolution of a display in postprocessing. The processor can obtain multiple images presented on a display, where the display is configured to present the multiple images at a first frame rate higher than a frame rate needed to form a perception of motion. The processor can obtain a mask corresponding to one or more images among the multiple images, where the mask indicates a portion of the one or more images among the multiple images to include in an output image. The processor can increase resolution of the display in proportion to the number of multiple images presented to the display by combining, based on the mask, the one or more images among the multiple images to obtain the output image.

A processor performing postprocessing obtains an input image containing both bright and dark regions. The processor obtains a threshold between a first pixel value of the virtual production display and a second pixel value of the virtual production display. The processor modifies the region according to predetermined steps producing a pattern unlikely to occur within the input image, where the pattern corresponds to a difference between the original pixel value and the threshold. The processor can replace the region of the input image with the pattern to obtain a modified image. The virtual production display can present the modified image. A processor performing postprocessing detects the pattern within the modified image displayed on the virtual production display. The processor calculates the original pixel value of the region by reversing the predetermined steps. The processor replaces the pattern in the modified image with the original pixel value.

A processor calibrates the camera by presenting an input image on the display to obtain a presented image. The camera, arbitrarily positioned relative to the display, records the presented image. The processor obtains the input image via a channel different from the display. The processor obtains an indication of a display region associated with the display. The processor determines an input image region corresponding to the display region, and a recorded image region corresponding to the display region. The processor obtains a first pixel value associated with the input image region and a second pixel value associated with the recorded image region. The processor determines a mapping between the first pixel value and the second pixel value, where applying the mapping to the second pixel value substantially produces the first pixel value. The processor stores an identifier associated with the recorded image region and the mapping.

A processor obtains an input image containing both bright and dark regions. The processor obtains a threshold between a first pixel value and a second pixel value of the display. Upon detecting a region of the input image having an original pixel value above the threshold, the processor can create a data structure including a location of the region in the input image and an original pixel value of the region. The data structure occupies less memory than the input image. The display presents the input image including the region of the image having the original pixel value above the threshold. The processor sends the data structure to a camera, which records the presented image. The processor performing postprocessing obtains the data structure and the recorded image and increases dynamic range of the recorded image by modifying the recorded image based on the data structure.

Disclosed here are various techniques to increase dynamic range of an image recorded from a display. A processor performing preprocessing splits an input image containing both bright and dark regions into two images, image A containing bright regions, and image B containing dark regions. The display presents image A and image B in alternating fashion. Camera is synchronized with the display to record image A and image B independently. In postprocessing, a processor obtains the recorded images A and B. The processor increases the pixel value of the recorded image A to obtain image A with increased pixel value. Finally, the processor increases pixel value of the image recorded from the display by combining the first recorded image with increased pixel value and the second recorded image.

The disclosed system increases resolution of a display. The display operates at a predetermined frequency by displaying a first image at a first time and a second image at a second time. A selective screen disposed between the display and the camera includes multiple light transmitting elements. A light transmitting element A redirects a first portion of light transmitted by the display. A light transmitting element B allows a second portion of light transmitted by the display to reach the camera. The selective screen increases the resolution of the display by operating at the predetermined frequency and causing a first portion of the first image to be shown at the first time, and a second portion of the second image to be shown at the second time. The camera forms an image from the first portion of the first image, and the second portion of the second image.

The processor obtains a first pixel value and a second pixel value of the display. The processor determines a desired pixel value range that exceeds the second pixel value of the display. The processor obtains a threshold between the first pixel value of the display and the second pixel value of the display. The processor obtains a function mapping the desired pixel value range to a range between the threshold and the second pixel value. The processor applies the first function to an input image prior to displaying the input image on the display. The display presents the image. Upon recording the presented image, the processor determines a region within the recorded image having a pixel value between the threshold and the second pixel value. The processor increases dynamic range of the recorded image by applying an inverse of the function to the pixel value of the region.

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Wellington, New Zealand

Millie Maier