System and method for focusing an electronic imaging system
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Mar 14, 2017
Grant Date -
Jul 10, 2014
app pub date -
Feb 2, 2012
filing date -
Feb 2, 2012
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
The present invention relates to the field of image processing and methodologies to passively focus an image automatically, using the electronic sensor signal. The method comprises steps of; receiving a pixel image, generating at least two histograms of the received image using at least two different frequency components, finding widths of acquired histograms and storing them as a focus measure, finding difference between last received frame's highest frequency component histogram width and at least one previously received frame's histogram width corresponding to the same component, determine whether there is a meaningful difference, and determine the focus direction signal by using the difference. The system comprises; an image sensor to acquire an electronic pixel image; an image processing unit configured to receive an image and implement the method using this image and output a focus direction signal found by the method; and a memory unit configured to store image histogram widths.
First Claim
Family
International Classification(s)
- [Classification Symbol]
- [Patents Count]
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully