IP Library › Granted Patent US 10,368,044
Granted Patent B2
US 10,368,044 · App. 15/025,536 · Granted Jul 30, 2019

Displaying DCI and other content on an enhanced dynamic range projector

Inventors: Martin J. Richards (Redwood City, CA); Douglas J. Gorny (Pacifica, CA)
Assignee: Dolby Laboratories Licensing Corporation
H04N9/3182H04N9/3126H04N9/67
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Quick Facts
Patent No.
US 10,368,044
App. No.
15/025,536
Granted
Jul 30, 2019
Kind
B2
Abstract

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.

Claims (28)

1. A multi-modulation projector display system, said display system comprising:

a light source;

a controller;

a first modulator, said first modulator being illuminated by said light source and said first modulator comprising a plurality of analog mirrors to modulate light from the light source;

a second modulator, said second modulator being illuminated by light from said first modulator and capable of modulating light from said first modulator, and said second modulator comprising a plurality of mirrors; said controller further comprising:

a processor;

a memory, said memory associated with said processor and said memory further comprising processor-readable instructions, such that when said processor reads the processor-readable instructions, causes the processor to perform the following instructions:

receiving input image data, said image data comprising at least one highlight feature;

determining whether the input image data comprises DCI image data;

processing the input image data as EDR image data upon detecting EDR image data;

setting the luminance of the first modulator as a function of a ratio of DCI max luminance to max luminance of the EDR projector system upon detecting DCI image data;

performing dynamic range processing on the DCI image data by creating a blurred halftone image on the first modulator; and

rendering the dynamic range processed DCI image data from the first modulator on the second modulator.

2. The display system of claim 1 wherein determining whether the input image data comprises DCI image data further comprises one of a group, said group comprising: detecting metadata associated with said input image data, said metadata indicating that said image data is DCI-compliant and assaying input image data to detect a plurality of image data parameters, said parameters indicating that the image data is DCI-compliant.

3. The display system of claim 1 wherein performing dynamic range processing on the DCI image data further comprises:

setting the first modulator to a desired luminance level; and

sending signals to the second modulator to modulate light from the first modulator to form the desired image from said input image data.

4. The display system of claim 3 wherein setting the first modulator to a desired luminance level further comprises:

setting the first modulator to transmit the full luminosity of the projector system.

5. The display system of claim 3 wherein setting the first modulator to a desired luminance level further comprises:

setting the first modulator to substantially transmit the ratio of DCI maximum luminance to the maximum luminance of the EDR projector.

6. The display system of claim 3 wherein sending signals to the second modulator to form the desired image further comprises:

rendering the desired image with a desired minimum level of the full luminance output of the EDR projector system.

7. The display system of claim 6 wherein the desired minimum level is substantially 1/1800 of the peak luminance of the EDR projector system.

8. The display system of claim 1 wherein the instructions further comprises:

gamut mapping DCI image data to a desired color gamut.

9. The display system of claim 8 wherein gamut mapping DCI image data to a desired color gamut further comprises:

expanding the DCI image data to the full color gamut of the EDR projector system.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 18, 2016
From: RICHARDS, MARTIN J.; GORNY, DOUGLAS J.
To: DOLBY LABORATORIES LICENSING CORPORATION
Reel/Frame 038304/0160 →
Continuity (2)
Provisional Application 61889322 · Oct 10, 2013
Related Publication 20160241828A1 · Aug 18, 2016
Cited By (1)
US 12,483,679