PATENT CLAIM ANALYSIS

Application Number: 15921302
Application Type: Utility
Filing Date: 2018-03
Publication Date: 2018-09
Patent Classification: ["375", "240030"]

Abstract:
A method of determining a maximum permissible key frame distance for use in encoding image frames in a video sequence comprising encoding a plurality of video test sequences, each video test sequence having a respective noise level, where each video test sequence is encoded using a respective quantization parameter and a plurality of key frame distances is disclosed. For each video test sequence, an output bitrate is determined for each key frame distance. For each combination of noise level, quantization parameter, and key frame distance, the determined output bitrate is stored and a maximum key frame distance at which output bitrate decreases in response to an increase in key frame distance is identified as maximum permissible key frame distance. A method of encoding image frames in a video sequence is also disclosed, as well as a system, a camera and a computer program product for performing the methods.

Claim (Index 8):
The method according to  claim 7 , wherein the GOP length with which the image frames are encoded is determined by:\n calculating a group value for each group of neighboring pixels of a current image frame based on information representative of the pixels in the current image frame; accumulating group values of corresponding groups of neighboring pixels in a first sequence of image frames comprising the current image frame and a first number of preceding image frames to form a first accumulation of accumulated group values; accumulating group values of corresponding groups of neighboring pixels in a second sequence of image frames comprising the current image frame and a second number of preceding image frames to form a second accumulation of accumulated group values, wherein the second sequence of image frames includes image frames captured over a longer period of time than the image frames of the first sequence; comparing accumulated group values of said first accumulation with accumulated group values of corresponding groups of neighboring pixels of said second accumulation; calculating a global change value based on the comparison of the first and second accumulations of group values; and determining the GOP length based on the global change value.

Metadata:
- Claim Count in Document: 20.0
- Percentile: 90.0
- Lexical Diversity: 2.53968
- Patent Class: 375.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['12601267', '10459104', '14939590', '14887964', '12013655']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.5015870124136983
- 35 USC 102 Novelty (BERT): 0.5026546897024451
- Combined Prediction Score: 0.5016937801425729
- Mean Citation Score: 263.996562
- Max Citation Score: 295.4681
- Similarity Product: 253.4672436202228

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