Targets, fixtures, and workflows for calibrating an endoscopic camera

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 11252395
APP PUB NO 20200228783A1
SERIAL NO

16826890

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

A calibration target comprises a target pattern plane having a planar surface and a plurality of markers disposed on the planar surface. An optical axis of the imaging system is at a first angle with respect to the planar surface of the target pattern plane when the calibration target is being used to calibrate the imaging system. The plurality of markers is pre-warped in size and aspect ratio using a set of trigonometric functions that use the first angle and a distance from the imaging system to the marker, so that each of the plurality of markers appears a substantially same size as all others of the plurality of markers when viewed by the imaging system at the first angle. The plurality of markers includes a plurality of localizer features that have known relative positions on the target pattern plane and are used to determine an orientation for each marker.

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

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

  • INTUITIVE SURGICAL OPERATIONS, INC.

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Scott, David D Oakland, US 59 1245
Zhao, Tao Sunnyvale, US 385 10835
Zhao, Wenyi Weston, US 116 7614

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 Aug 15, 2025
7.5 Year Payment $3600.00 $1800.00 $900.00 Aug 15, 2029
11.5 Year Payment $7400.00 $3700.00 $1850.00 Aug 15, 2033
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