PATENT CLAIM ANALYSIS

Application Number: 15938621
Application Type: Utility
Filing Date: 2018-03
Publication Date: 2018-08
Patent Classification: ["375", "240030"]

Abstract:
An image encoding and decoding apparatus and method, the image encoding and decoding apparatus includes: an encoding unit adjusting at least one weight value adaptively to the number of bits expressing each pixel of a current image, predicting a pixel value of a block of interest by performing an operation on a pixel value of at least one block having a pixel value similar to the pixel value of the block of interest among blocks included in a previous image and the at least one adjusted weight value, and encoding the pixel value of the block of interest using the predicted pixel value of the block of interest; and a decoding unit adjusting the at least one weight value adaptively to the number of bits, restoring the predicted pixel value of the block of interest by performing an operation on the pixel value of the at least one block having the pixel value similar to the pixel value of the block of interest among blocks included in the restored previous image and the at least one adjusted weight value, and decoding the pixel value of the block of interest using the restored pixel value, wherein the previous image refers to an image displayed prior to a current image, and the block of interest is a target block of interest among blocks belonging to the current image.

Claim (Index 3):
An image encoding method comprising:\n obtaining variables for weighted prediction, including at least one multiplied value (W) and at least one additive value (O), wherein the additive value is adjusted according to a bit depth of a pixel, when the weighted prediction is applied to the block; obtaining a predicted pixel value of the block using the weighted prediction based on the variables; and encoding a residue of the block using the predicted pixel value of the block, wherein the additive value is obtained based on a value of 2 (N-M) , where N represents the bit depth of the pixel and M represents a constant.

Metadata:
- Claim Count in Document: 12.0
- Percentile: 90.0
- Lexical Diversity: 4.14035
- Patent Class: 375.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['14537427', '14671648', '14674804', '15609595', '10893253']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.5027694517238954
- 35 USC 102 Novelty (BERT): 0.5547014437339075
- Combined Prediction Score: 0.5079626509248967
- Mean Citation Score: 394.231372
- Max Citation Score: 406.9509
- Similarity Product: 396.54519976387024

Labels:
- Claim Label 101: 1
- Claim Label 102: 1
- Claim Label 103: 1
- Claim Label 112: 1
- Combined Label: 1
- Label 101 Adjusted: 0

Dataset: test