PATENT CLAIM ANALYSIS

Application Number: 16363024
Application Type: Utility
Filing Date: 2019-03
Publication Date: 2019-07
Patent Classification: ["375", "240030"]

Abstract:
Techniques are provided to encode and decode image data comprising a tone mapped (TM) image with HDR reconstruction data in the form of luminance ratios and color residual values. In an example embodiment, luminance ratio values and residual values in color channels of a color space are generated on an individual pixel basis based on a high dynamic range (HDR) image and a derivative tone-mapped (TM) image that comprises one or more color alterations that would not be recoverable from the TM image with a luminance ratio image. The TM image with HDR reconstruction data derived from the luminance ratio values and the color-channel residual values may be outputted in an image file to a downstream device, for example, for decoding, rendering, and/or storing. The image file may be decoded to generate a restored HDR image free of the color alterations.

Claim (Index 8):
A system for decoding high-dynamic range images, the system comprising:\n a parser, wherein the parser:\n receives a coded bitstream comprising a high-dynamic range image encoded according to the image structure in  claim 1 ; and \n parses the coded bitstream to extract the compressed tone-mapped base image and the HDR reconstruction data; \n an image decoder, wherein the image decoder generates a decoded base image based on the compressed tone-mapped base image; and an HDR image decoder, wherein the HDR image decoder:\n extracts the luma de-quantization parameters from the HDR reconstruction data; \n extracts the luma ratio image; \n generates a dequantized luma ratio image based on the luma ratio image and the luma de-quantization parameters; \n extracts the chroma de-quantization parameters; \n extracts the one or more sets of quantized residual chroma values; \n generates one or more sets of dequantized residual chroma values based on the chroma de-quantization parameters and the one or more sets of quantized residual chroma values; \n linearizes the dequantized luma ratio image to generate a linearized luma ratio image; and \n generates an output HDR image based on the one or more sets of dequantized residual chroma values, the linearized luma ratio image, and the decoded base image.

Metadata:
- Claim Count in Document: 32.0
- Percentile: 99.0
- Lexical Diversity: 2.05263
- Patent Class: 375.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['16011543', '15482689', '14997950', '14677906', '13938795']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.5259418338726213
- 35 USC 102 Novelty (BERT): 0.5766199364570316
- Combined Prediction Score: 0.5310096441310623
- Mean Citation Score: 425.60157
- Max Citation Score: 452.84738
- Similarity Product: 446.9125024033677

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