Apparatus and method for estimating camera orientation relative to ground surface

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12002235
APP PUB NO 20220051430A1
SERIAL NO

17197069

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

An iterative multi-image camera orientation estimation comprising: capturing an image of a scene before the camera; detecting line segments in the scene; computing a maximum likelihood (ML) camera orientation by maximizing a likelihood objective by rotating the camera's X-Y-Z coordinate system such that it is being optimally aligned with the line segments in at least two of the frontal, the lateral, and the vertical orthogonal directions; estimating a maximum a-posteriori (MAP) camera orientation that maximizes an a-posteriori objective such that the MAP camera orientation is an optimal value in between the priori camera orientation and the ML camera orientation, and is closer to the one with smaller uncertainty; iterating the multi-image camera orientation estimation with the priori camera orientation and its corresponding priori camera orientation uncertainty set to the computed MAP camera orientation and its corresponding uncertainty respectively until the uncertainty is lower than a threshold.

Loading the Abstract Image... loading....

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

  • HONG KONG APPLIED SCIENCE AND TECHNOLOGY RESEARCH INSTITUTE COMPANY LIMITED

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kwan, Man Wai Hong Kong, HK 27 55
Lam, Yiu Man Hong Kong, HK 3 2
Lin, Zhuobin Hong Kong, HK 2 0
Liu, Cheng Hsiung Hong Kong, HK 4 3
Thong, Wang Kit Wilson Hong Kong, HK 3 2
Yan, Jiaxin Hong Kong, HK 4 2
Zhang, Jihui Hong Kong, HK 11 27

Cited Art Landscape

Load Citation

Patent Citation Ranking

Forward Cite Landscape

Load Citation

Maintenance Fees

Fee Large entity fee small entity fee micro entity fee due date
3.5 Year Payment $1600.00 $800.00 $400.00 Dec 4, 2027
7.5 Year Payment $3600.00 $1800.00 $900.00 Dec 4, 2031
11.5 Year Payment $7400.00 $3700.00 $1850.00 Dec 4, 2035
Fee Large entity fee small entity fee micro entity fee
Surcharge - 3.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge - 7.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge - 11.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge after expiration - Late payment is unavoidable $700.00 $350.00 $175.00
Surcharge after expiration - Late payment is unintentional $1,640.00 $820.00 $410.00