Granted Patent B2

US 11,436,967 · App. 17/703,534 · Granted Sep 6, 2022

Inventors: Gary B. Mandle (Los Altos, CA); James M. DeFilippis (Pacific Palisades, CA)

Assignee: BAYLOR UNIVERSITY

G09G3/2003G02B5/201G02F1/133514G09G3/3413G09G5/02G09G2300/0452G09G2320/0242G09G2340/06

Abstract

Claims (47)

1. A system for encoding and decoding an image signal, comprising:

an encoder, wherein the encoder includes at least one encoder processor, at least one encoder memory, at least one encoder input, a gamma function, and at least one encoder output; and

a decoder, wherein the decoder includes at least one decoder processor, at least one decoder memory, at least one decoder input, and at least one decoder output;

wherein the encoder and the decoder are in communication;

wherein the at least one encoder input is image data related to the image signal;

wherein the encoder is operable to process the at least one encoder input, thereby creating the at least one encoder output;

wherein the at least one encoder output is xyY data, wherein the xyY data includes two colorimetric coordinates (x and y) and a luma (Y′);

wherein the gamma function is not applied to the two colorimetric coordinates (x and y) and wherein the gamma function is applied to a luminance (Y), thereby creating the luma Y′;

wherein the at least one encoder output is transmitted to the decoder, thereby creating the at least one decoder input; and

wherein the decoder is operable to process the at least one decoder input, thereby creating the at least one decoder output.

2. The system of claim 1 , wherein the encoder further includes a watermark engine, and wherein the watermark engine is operable to modify the at least one encoder input to include a digital watermark.

3. The system of claim 1 , wherein the decoder further includes a watermark detection engine and a watermark subtraction engine, wherein the watermark detection engine is operable to detect a digital watermark, and wherein the watermark subtraction engine is operable to remove the digital watermark.

4. The system of claim 1 , wherein the encoder further includes an encoder flash card reader and/or the decoder further includes a decoder flash card reader.

5. The system of claim 1 , wherein the decoder is in communication with at least one viewing device, wherein the at least one decoder output is transmitted to the at least one viewing device, and wherein the at least one viewing device is operable to display one or more of the at least one decoder output.

6. The system of claim 1 , wherein the encoder and/or the decoder are operable to generate, insert, and/or recover metadata related to the image signal.

7. The system of claim 6 , wherein the metadata includes a color space, an image transfer function, a peak white value, and/or a signal format.

8. The system of claim 1 , wherein the encoder further includes an encoder operations programming port and/or the decoder further includes a decoder operations programming port, wherein the encoder operations programming port is operable to provide updates to firmware and/or software on the encoder, and wherein the decoder operations programming port is operable to provide updates to firmware and/or software on the decoder.

9. The system of claim 1 , wherein the encoder further includes an encoder equalizer, at least one encoder serial to parallel converter, at least one Ethernet port, a DeBayer engine, a linear converter, a scaler, at least one custom encoder look-up table, an RGB-to-XYZ converter, an XYZ-to-xyY converter, a sampling selector, and/or at least one encoder parallel to serial converter.

10. The system of claim 1 , wherein the decoder further includes a decoder equalizer, at least one decoder serial to parallel converter, a sampling converter, at least one xyY-to-XYZ converter, a gamma library, an XYZ-to-RGB library, at least one custom decoder look-up table, and/or at least one decoder parallel to serial converter.

11. The system of claim 1 , wherein the encoder further includes at least one encoder formatter, wherein the at least one encoder formatter is operable to provide the at least one encoder output formatted for serial digital interface (SDI), high-definition multimedia interface (HDMI), Ethernet, and/or fiber.

12. The system of claim 1 , wherein the decoder further includes at least one decoder formatter, wherein the at least one decoder formatter is operable to provide the at least one decoder output formatted for serial digital interface (SDI), high-definition multimedia interface (HDMI), Ethernet, and/or fiber.

13. The system of claim 1 , wherein the decoder is in communication with at least two viewing devices, and wherein the decoder is operable to send the at least one decoder output to the at least two viewing devices simultaneously.

14. The system of claim 1 , further including at least one viewing device, wherein the at least one viewing device includes a plurality of pixels and a plurality of subpixels, and wherein the two colorimetric coordinates (x and y) and the luminance or the luma corresponding to a pixel of the plurality of pixels is used to calculate a color and a brightness of one or more of the plurality of subpixels.

15. The system of claim 1 , wherein the xyY data includes a subsample of a set of values in xyY color space.

16. A system for encoding and decoding an image signal, comprising:

an encoder, wherein the encoder includes at least one encoder processor, at least one encoder memory, at least one encoder input, a gamma function, a watermark engine, and at least one encoder output; and

a decoder, wherein the decoder includes at least one decoder processor, at least one decoder memory, at least one decoder input, a watermark detection engine, a watermark subtraction engine, and at least one decoder output;

wherein the encoder and the decoder are in communication;

wherein the at least one encoder input is image data related to the image signal;

wherein the encoder is operable to process the at least one encoder input and the watermark engine is operable to modify the at least one encoder input to include a digital watermark, thereby creating the at least one encoder output;

wherein the at least one encoder output is xyY data, wherein the xyY data includes two colorimetric coordinates (x and y) and a luma (Y′);

wherein the gamma function is not applied to the colorimetric coordinates (x and y) and wherein the gamma function is applied to a luminance (Y), thereby creating the luma (Y′);

wherein the at least one encoder output is transmitted to the decoder, thereby creating the at least one decoder input; and

wherein the decoder is operable to process the at least one decoder input, the watermark detection engine is operable to detect the digital watermark, and the watermark subtraction engine is operable to remove the digital watermark, thereby creating the at least one decoder output.

17. The system of claim 16 , wherein the decoder further includes a gamma to linear converter, and wherein the gamma to linear converter is operable to remove the gamma function.

18. A system for encoding and decoding an image signal, comprising:

an encoder, wherein the encoder includes at least one encoder processor, at least one encoder memory, at least one encoder input, a ½ gamma function, and at least one encoder output; and

a decoder, wherein the decoder includes at least one decoder processor, at least one decoder memory, at least one decoder input, a ½ gamma to linear converter, and at least one decoder output;

wherein the encoder and the decoder are in communication;

wherein the at least one encoder input is image data related to the image signal;

wherein the encoder is operable to process the at least one encoder input using the 1/2 gamma function, thereby creating the at least one encoder output;

wherein the at least one encoder output is xyY data, wherein the xyY data includes two colorimetric coordinates (x and y) and a luma (Y′);

wherein the ½ gamma function is not applied to the two colorimetric coordinates x and y and wherein the ½ gamma function is applied to a luminance (Y), thereby creating the luma (Y′);

wherein the at least one encoder output is transmitted to the decoder, thereby creating the at least one decoder input; and

wherein the decoder is operable to process the at least one decoder input and remove the ½ gamma function using the ½ gamma to linear converter, thereby creating the at least one decoder output.

19. The system of claim 18 , wherein the encoder further includes a watermark engine, and wherein the watermark engine is operable to modify the at least one encoder input to include a digital watermark.

20. The system of claim 18 , wherein the decoder further includes a watermark detection engine and a watermark subtraction engine, wherein the watermark detection engine is operable to detect a digital watermark, and wherein the watermark subtraction engine is operable to remove the digital watermark.

Assignments (2)

Continuity (13)