PATENT CLAIM ANALYSIS

Application Number: 15885874
Application Type: Utility
Filing Date: 2018-02
Publication Date: 2019-05
Patent Classification: ["348", "148000"]

Abstract:
The present invention provides a method for fast, robust and efficient BA pipeline (SfM) for wide area motion imagery (WAMI). The invention can, without applying direct outliers filtering (e.g. RANSAC) or re-estimation of the camera parameters (e.g. essential matrix estimation) efficiently refine noisy camera parameters in very short amounts of time. The method is highly robust owing to its adaptivity with the persistency factor of each track. The present invention highly suitable for sequential aerial imagery, particularly for WAMI, where camera parameters are available from onboard sensors.

Claim (Index 4):
The system of  claim 3 , wherein said error function is computed according to min Ri , ti , Xj \ue89e \u2211 i = 1 Nc \ue89e \ue89e \u2211 j = 1 N 3 \ue89e D \ue89e \ue89e ( \u03b3 j \u03bc + \u03c3 ) 2 \ue89e \ue89e log \ue8a0 ( 1 + ( \u03bc + \u03c3 \u03b3 j ) 2 \ue89e \uf605 x ji - g \ue8a0 ( X j , R i , t i , K i ) \uf606 2 ) where\n R i  is a rotation matrix of an ith camera; \n t i  is a translation vector of an ith camera; \n K i  is a calibration matrix of an ith camera; \n X j  is a 3D point from said image; \n x ji  is an image coordinate in an ith camera \n g(X j , R i , t i , K i ) is a projection model mapping of X j  onto an image plane of an ith camera; \n \u03c3 is the standard deviation of the lengths of all said feature tracks; and \n Nc is a number of cameras.

Metadata:
- Claim Count in Document: 9.0
- Percentile: 88.0
- Lexical Diversity: 1.52174
- Patent Class: 348.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: False
- Related Applications: ['14982030', '15038325', '14690104', '13858040', '14184766']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.5741984304080152
- 35 USC 102 Novelty (BERT): 0.6214817326655011
- Combined Prediction Score: 0.5789267606337638
- Mean Citation Score: 265.166734
- Max Citation Score: 558.53046
- Similarity Product: 509.3974906034695

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