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 1):
A high dynamic range video encoder comprising an apparatus for determining a code allocation function comprising:\n a calculation unit arranged to determine a first partial function of at least two partial functions which defines a non-linear invertible mapping of an entire luminance range of a linear luminance input value to an entire luma range of a first output luma value; a calculation unit arranged to determine a second partial function to be consecutively applied to the luma value from the first partial function of the at least two partial functions, which second partial function defines a non-linear invertible mapping of an entire luma range of an input luma value being first output luma value to an entire luma range of a second output luma value; and a code allocation function construction unit arranged to construct a code allocation function for allocating pixel colors having pixel luminances to luma codes encoding such pixel luminances from the at least two partial functions.

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): 0.3915561457928601
- 35 USC 102 Novelty (BERT): 0.5682567990737681
- Combined Prediction Score: 0.4092262111209509
- Mean Citation Score: 346.30067599999984
- Max Citation Score: 449.34927000000016
- Similarity Product: 417.7292231477239

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