PATENT CLAIM ANALYSIS

Application Number: 16206525
Application Type: Utility
Filing Date: 2018-11
Publication Date: 2019-03
Patent Classification: ["382", "166000"]

Abstract:
To enable better encoding of the currently starting to appear high dynamic range images for use in full high dynamic range technical systems (containing an HDR display, and e.g. in an HDR grading application), we invented a method of constructing a code allocation function for allocating pixel colors having pixel luminances to codes encoding such pixel luminances, in which the step of determining the code allocation function to be applied to at least one color coordinate of the pixel to obtain a code value, comprises constructing that function out of at least two partial functions, and similar methods at a receiving side, and apparatuses, and signals for communicating between the two sites. This method allows—in line with applicant's technical approach that HDR images should actually be communicated as a spectrum of differently regraded different dynamic range images of the same scene, e.g. a master HDR image and another image of the same HDR scene encoded with a different dynamic range and peak brightness than the master HDR image, and one of these images should be communicated to receivers together with luminance mapping functions co-communicated in metadata allowing the calculation at the receiving side of the non-transmitted different dynamic range image—a better application of dynamically per scene optimizable luminance mapping functions.

Claim (Index 2):
An apparatus for determining a code mapping function for mapping from luma codes to pixel linear luminances, the apparatus comprising:\n a first determiner for determining at least two partial functions for the code mapping function; and a second determiner for determining the code mapping function based on the at least two partial functions applied in consecutive order; wherein the code mapping function provides a non-linear mapping of luma codes to pixel linear luminances which is defined from the following two partial functions to be applied in consecutive order: a first partial function of the at least two partial functions defining a non-linear invertible mapping of an entire luma range of an input luma code to an entire luma range of a luma output value; and a second partial function of the at least two partial functions defines a non-linear invertible mapping of an entire luma range of a luma input value being the luma output value to an entire luminance range of a pixel linear luminance value.

Metadata:
- Claim Count in Document: 5.0
- Percentile: 98.0
- Lexical Diversity: 2.01786
- Patent Class: 382.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['14903294', '14903630', '15542768', '15306873', '14112281']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.3909794781600768
- 35 USC 102 Novelty (BERT): 0.5694739249213737
- Combined Prediction Score: 0.4088289228362065
- Mean Citation Score: 346.30067599999984
- Max Citation Score: 449.34927000000016
- Similarity Product: 426.9958712334503

Labels:
- Claim Label 101: 1
- Claim Label 102: 1
- Claim Label 103: 1
- Claim Label 112: 1
- Combined Label: 1
- Label 101 Adjusted: 1

Dataset: test