Image calibration

• US 9,672,623 B2
• Filed: 03/09/2013
• Issued: 06/06/2017
• Est. Priority Date: 10/09/2012
• Status: Active Grant

• Current Assignee: Pixameter Corp.
• Original Assignee: Pixameter Corp.
• Inventors: Ghazizadeh, Mansoor
• Primary Examiner(s): JOHNSON, SONJI N
• Application Number:
  US13/791,987
• Publication Number:
  US 20140098243A1
• Time in Patent Office: 1,550 Days
• Field of Search: 4554561, 455 6711, 4555501, 455423, 455 6714, 4552261, 455418, 455425, 4554562, 4554563, 4554565
• CPC Class Codes: B82Y 15/00 Nanotechnology for interacting, sensing or actuating, e.g. quantum dots as markers in protein assays or molecular motors
• CPC Class Codes: C12N 15/1065 Preparation or screening of tagged libraries, e.g. tagged microorganisms by STM-mutagenesis, tagged polynucleotides, gene tags
• CPC Class Codes: G01B 11/02 for measuring length, width or thickness G01B11/08 takes precedence
• CPC Class Codes: G01B 21/042 Calibration or calibration artifacts G01B3/30, G01B9/02072 take precedence
• CPC Class Codes: G01D 18/00 Testing or calibrating apparatus or arrangements provided for in groups G01D1/00 - G01D15/00
• CPC Class Codes: G01N 2001/002 Devices for supplying or distributing samples to an analysing apparatus
• CPC Class Codes: G01N 2015/0011 in liquids, e.g. bubbles
• CPC Class Codes: G01N 21/6428 Measuring fluorescence of fluorescent products of reactions or of fluorochrome labelled reactive substances, e.g. measuring quenching effects, using measuring "optrodes" in vivo A61B5/00; immunoassay G01N33/53
• CPC Class Codes: G01N 33/53 Immunoassay; Biospecific binding assay; Materials therefor
• CPC Class Codes: G01N 33/5308 for analytes not provided for elsewhere, e.g. nucleic acids, uric acid, worms, mites
• CPC Class Codes: G01N 33/533 with fluorescent label
• CPC Class Codes: G01N 33/54313 the carrier being characterised by its particulate form
• CPC Class Codes: G01N 33/54373 involving physiochemical end-point determination, e.g. wave-guides, FETS, gratings
• CPC Class Codes: G01N 33/582 with fluorescent label
• CPC Class Codes: G01N 33/588 with semiconductor nanocrystal label, e.g. quantum dots
• CPC Class Codes: G01N 35/1095 for supplying the samples to flow-through analysers for a specific analyser see relevant groups, e.g. under G01N15/00, G01N21/00, G01N27/00, G01N30/00, H01J49/00
• CPC Class Codes: G06K 19/06046 Constructional details
• CPC Class Codes: G06T 2207/20208 High dynamic range [HDR] image processing
• CPC Class Codes: G06T 2207/30204 Marker
• CPC Class Codes: G06T 7/50 Depth or shape recovery
• CPC Class Codes: G06T 7/80 : Analysis of captured images to determine intrinsic or extrinsic camera parameters, i.e. camera calibration

Abstract

A digital image is captured. The captured digital image includes a calibration pattern. The calibration pattern includes displayed information about the calibration pattern. The displayed information is read to obtain calibration information about the captured digital image. A new image is generated. The calibration information is stored with the new image.

Claims

1. A method comprising:

(a) capturing a digital image that includes both a physical object and a calibration pattern, said calibration pattern including displayed information about said calibration pattern, where said calibration pattern and said physical object are non-overlapping with one another in said digital image;

(b) reading, from said captured digital image that includes both said physical object and said calibration pattern, said displayed information about said calibration pattern to determine calibration information pertaining to said physical object;

(c) generating a new image of said physical object, said new image not including said calibration pattern;

(d) adding said calibration information to said new image;

(e) wherein said calibration information is said added to said new image by including said calibration information as metadata for said new image within an image file containing said new image;

(f) wherein said calibration information includes resolution scaling information;

(g) capturing another digital image that includes both another physical object and another calibration pattern, said another calibration pattern including another displayed information about said another calibration pattern, where said another calibration pattern and said another physical object are non-overlapping with one another in said another digital image;

(h) reading, from said another captured digital image that includes both said another physical object and said another calibration pattern, said another displayed information about said another calibration pattern to determine another calibration information pertaining to said another physical object;

(i) generating another new image of said another physical object, said another new image not including said another calibration pattern;

(j) adding said another calibration information to said another new image.

2. The method of claim 1 wherein said another calibration information is said added to said another new image by including said another calibration information as metadata for said another new image within another image file containing said another new image.

3. The method of claim 2 wherein said another calibration information includes another resolution scaling information.

4. The method of claim 3 further comprising:

(a) displaying said new image on a display based upon said resolution scaling information said added to said new image;

(b) simultaneously displaying said another new image on said display based upon said another resolution scaling information said added to said another new image;

(c) where said resolution scaling information is different than said another resolution scaling information.