PATENT CLAIM ANALYSIS

Application Number: 15871912
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2018-05
Patent Classification: ["235", "469000"]

Abstract:
A method includes: dividing a received QR code image into a multi-row image of rows of pixels whose number is the same as a threshold of the number of rows; calculating an average grayscale value of each column of pixels to form row data, and binarizing the row data; extracting a rectangle image in the binarized row data whose similarity to a preset proportion is smaller than a threshold; binarizing the rectangle image and a region formed by extending the rectangle image by the width threshold upwardly and downwardly respectively; searching for column line segments meeting the preset proportion on a middle column of the rectangle image; translating a diagonal line of a square image in upward and downward directions respectively; searching for and recording black-white demarcation points on the edge of the square image on the translated diagonal line and forming a position detection pattern of the QR code.

Claim (Index 10):
A quick response (QR) code feature detection system, characterized by comprising:\n a dividing module which is configured for dividing a received QR code image into a multi-row image of rows of pixels whose number is the same as the threshold of the number of rows; a calculation module which is configured for calculating an average grayscale value of each column of pixels in the multi-row image so as to form row data; a first binarization module which is configured for binarizing the row data; a counting module which is configured for counting the number of consecutive \u201c1\u201d and the number of consecutive \u201c0\u201d in the binarized row data so as to form row proportions; an extraction module which is configured for extracting a rectangle image corresponding to a row proportion whose similarity to a preset proportion is smaller than the row proportion threshold from the row proportions; a second binarization module which is configured for binarizing the rectangle image and a region formed by extending the rectangle image by the width threshold upwardly and downwardly respectively; a first searching module which is configured for searching for column line segments meeting the preset proportion on a middle column of the rectangle image; a translating module which is configured for translating a diagonal line of a square image containing the rectangle image and the column line segments in upward and downward directions respectively; a second searching module which is configured for searching for black-white demarcation points on the edge of the square image on the translated diagonal line; a recording module which is configured for recording the black-white demarcation points on the edge of the square image on the translated diagonal line; and a forming module which is configured for connecting the black-white demarcation points to form a position detection pattern of the QR code.

Metadata:
- Claim Count in Document: 15.0
- Percentile: 86.0
- Lexical Diversity: 2.03846
- Patent Class: 235.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['14103881', '15871188', '14102799', '13149842', '14446020']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.5737250215948886
- 35 USC 102 Novelty (BERT): 0.4665732792216243
- Combined Prediction Score: 0.5630098473575622
- Mean Citation Score: 190.268194
- Max Citation Score: 205.25246
- Similarity Product: 158.59753835965398

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