Method and apparatus for encoding and decoding HDR images

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 11727548
APP PUB NO 20200172813A1
SERIAL NO

16784124

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

To encode High Dynamic Range (HDR) images, the HDR images can be converted to Low Dynamic Range (LDR) images through tone mapping operation, and the LDR images can be encoded with an LDR encoder. The present principles formulates a rate distortion minimization problem when designing the tone mapping curve. In particular, the tone mapping curve is formulated as a function of the probability distribution function of the HDR images to be encoded and a Lagrangian multiplier that depends on encoding parameters. At the decoder, based on the parameters indicative of the tone mapping function, an inverse tone mapping function can be derived to reconstruct HDR images from decoded LDR images.

Loading the Abstract Image... loading....

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

Patent OwnerAddress
INTERDIGITAL VC HOLDINGS INC200 BELLEVUE PARKWAY SUITE 300 WILMINGTON DE 19809

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Boitard, Ronan Belz, FR 13 86
Guillemot, Christine Rennes, FR 33 192
Le, Pendu Mikael Rennes, FR 9 87
Thoreau, Dominique Cesson-Sévigné, FR 109 1142

Cited Art Landscape

Load Citation

Patent Citation Ranking

Forward Cite Landscape

Load Citation

Maintenance Fees

Fee Large entity fee small entity fee micro entity fee due date
3.5 Year Payment $1600.00 $800.00 $400.00 Feb 15, 2027
7.5 Year Payment $3600.00 $1800.00 $900.00 Feb 15, 2031
11.5 Year Payment $7400.00 $3700.00 $1850.00 Feb 15, 2035
Fee Large entity fee small entity fee micro entity fee
Surcharge - 3.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge - 7.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge - 11.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge after expiration - Late payment is unavoidable $700.00 $350.00 $175.00
Surcharge after expiration - Late payment is unintentional $1,640.00 $820.00 $410.00