PATENT CLAIM ANALYSIS

Application Number: 16069244
Application Type: Utility
Filing Date: 2018-07
Publication Date: 2019-01
Patent Classification: ["348", "047000"]

Abstract:
There are disclosed various methods and apparatuses for calibration of a multi-camera system. In some embodiments of the method a first image captured by a first camera unit of a multi-camera system and a second image captured by a second camera unit of the multi-camera system are obtained. A two-dimensional optical flow between the first camera unit and the second camera unit is determined by using the first image and the second image. The two-dimensional optical flow is converted into a three-dimensional rotation. A parallax component of the three-dimensional rotation is removed by using extrinsic parameters of the first camera unit and the second camera unit. The modified three-dimensional rotations are used to obtain a first error estimate for the first camera unit and a second error estimate for the second camera unit. In some embodiments the apparatus comprises means for implementing the method.

Claim (Index 22):
An apparatus comprising at least one processor; and at least one memory including computer program code the at least one memory and the computer program code configured to, with the at least one processor, cause the apparatus to perform at least the following:\n obtain a first image captured by a first camera unit of a multi-camera system; obtain a second image captured by a second camera unit of the multi-camera system; determine a two-dimensional optical flow between the first camera unit and the second camera unit by using the first image and the second image; convert the two-dimensional optical flow into a three-dimensional rotation; remove a parallax component of the three-dimensional rotation by using extrinsic parameters of the first camera unit and the second camera unit; use modified three-dimensional rotations to obtain a first error estimate for the first camera unit and a second error estimate for the second camera unit; and use error estimates to adjust extrinsic parameters of at least one of the first camera unit or the second camera unit.

Metadata:
- Claim Count in Document: 29.0
- Percentile: 95.0
- Lexical Diversity: 2.69643
- Patent Class: 348.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['13213303', '15510737', '14878267', '15970965', '14493959']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.5693832356697521
- 35 USC 102 Novelty (BERT): 0.4901502061423517
- Combined Prediction Score: 0.5614599327170121
- Mean Citation Score: 191.136106
- Max Citation Score: 210.5347
- Similarity Product: 157.67554733495712

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