EP 2649788 A1 20131016 - AUTO-FOCUS IMAGE SYSTEM
Title (en)
AUTO-FOCUS IMAGE SYSTEM
Title (de)
BILDSYSTEM MIT AUUTOFOKUS
Title (fr)
SYSTÈME D'IMAGERIE À MISE AU POINT AUTOMATIQUE
Publication
Application
Priority
- IB 2010055641 W 20101207
- IB 2011052529 W 20110609
Abstract (en)
[origin: WO2012076993A1] An auto focus image system that includes a pixel array coupled to a focus signal generator. The pixel array captures an image that has a plurality of edges. The generator generates a focus signal that is a function of a plurality of edge-sharpness measures, each one measured from one of the plurality of edges. The generator may determine to reduce a relative extent to which an edge contributes to the focus signal on basis of detecting that the edge does not have sufficient reflection symmetry, according to a predefined criterion, in a sequence of gradients of an image signal across the edge.
IPC 8 full level
H04N 5/232 (2006.01); G02B 7/36 (2006.01); G03B 13/36 (2006.01)
CPC (source: EP US)
G02B 7/36 (2013.01 - EP); G03B 13/36 (2013.01 - EP); H04N 23/673 (2023.01 - EP US)
Citation (search report)
See references of WO 2012076993A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
WO 2012076993 A1 20120614; AU 2011340208 A1 20130718; CA 2820847 A1 20120614; DE 112011104233 T5 20131212; EP 2649788 A1 20131016; JP 2014513809 A 20140605; JP 6057086 B2 20170111; MX 2013006516 A 20131212; SG 190755 A1 20130731
DOCDB simple family (application)
IB 2011052529 W 20110609; AU 2011340208 A 20110609; CA 2820847 A 20110609; DE 112011104233 T 20110609; EP 11748716 A 20110609; JP 2013542633 A 20110609; MX 2013006516 A 20110609; SG 2013044219 A 20110609