PATENT CLAIM ANALYSIS

Application Number: 15993883
Application Type: Utility
Filing Date: 2018-05
Publication Date: 2018-12
Patent Classification: ["356", "445000"]

Abstract:
A system for classifying different types of sheeting materials of road signs depicted in a videostream compares estimated retroreflectivity values against known minimum retroreflectivity values for each of a plurality of colors. Once a road sign has been identified in the videostream, the frames associated with that road sign are analyzed to determine each of a plurality of colors present on the road sign. An estimated retroreflectivity for each of the plurality of colors present on the road sign is then determined. By comparing the estimated retroreflectivity for each of the plurality of colors against known minimum retroreflectivity values for the corresponding color for different types of sheeting materials, an accurate determination of the classification of the sheeting material of the road sign is established. Preferably, certain conditions of gross failure of the sheeting material are filtered out before classification of the sheeting material is determined.

Claim (Index 18):
A system determining sheeting type of a reflective sheeting material covering a road sign comprising: at least one light source mounted on a vehicle capable of traversing a roadway and suitable for illuminating at least a portion of the road sign; at least one light intensity sensor for receiving light reflected from the road sign and computing the intensity of the received light; a positioning system for determining a location of the vehicle from a stationary frame of reference; a ranging system for determining a distance of the road sign from the light source and an inclination of a surface of the road sign relative to the light source; a control system operably connected to the light source, intensity sensor, positioning system and ranging system such that the intensity sensor, ranging system and positioning system record information associated with an area that includes at least one road sign as the vehicle traverses along the roadway in response to repeated illumination of the area by the light source; and a computer processing system that utilizes the recorded information to determine an as-measured retroreflectivity profile having an as-measured shape and comprising the plurality of as-measured retroreflectivity values for the sheeting type of the road sign and comparing the as-measured shape with a characteristic shape of at least one known retroreflectivity profile in a database of known retroreflectivity profiles for each of a plurality of different sheeting types to classify a sheeting material of the road sign as one of the plurality of different sheeting types.

Metadata:
- Claim Count in Document: 44.0
- Percentile: 93.0
- Lexical Diversity: 2.36923
- Patent Class: 356.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['11056926', '12419843', '15595594', '09928218', '13205337']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8022484994996013
- 35 USC 102 Novelty (BERT): 0.6694793741604362
- Combined Prediction Score: 0.7889715869656848
- Mean Citation Score: 618.87535
- Max Citation Score: 666.6439
- Similarity Product: 654.6276166190744

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

Dataset: test