US 2015/0178593 A1 · METHOD, APPARATUS, AND DEVICE FOR DETECTING CONVEX POLYGON IMAGE BLOCK

Abstract

The present invention discloses a method and an apparatus for detecting a convex polygon image block, and a device. The method includes: acquiring an image collected by an image sensor; acquiring a corner set, where the corner set includes a corner in the image, and the corner is an intersection point at which any two straight line sides that are not parallel to each other in the image intersect; and detecting a convex polygon image block in the image according to the corner set, where a shape of the convex polygon image block is a preset shape and a similarity between the convex polygon image block and a preset image block exceeds a preset first threshold. The apparatus includes: a first acquiring module, a second acquiring module, and a detecting module. In the present invention, the convex polygon image block can be detected from the image.

Claims14

Dependent claims

A method for detecting a convex polygon image block, wherein the method comprises:

acquiring an image collected by an image sensor;
acquiring a corner set, wherein the corner set comprises a corner in the image, and the corner is an intersection point at which any two straight line sides that are not parallel to each other in the image intersect;
and
detecting a convex polygon image block from the image according to the corner set, wherein a shape of the convex polygon image block is a preset shape and a similarity between the convex polygon image block and a preset image block exceeds a preset first threshold.

1 more element

An apparatus for detecting a convex polygon image block, wherein the apparatus comprises a memory and a processor, the processor is configured to perform a program which is stored in the memory, wherein the program comprises:

a first acquiring module, configured to acquire an image collected by an image sensor;
a second acquiring module, configured to acquire a corner set, wherein the corner set comprises a corner in the image, and the corner is an intersection point at which any two straight line sides that are not parallel to each other in the image intersect;
and
a detecting module, configured to detect a convex polygon image block from the image according to the corner set, wherein a shape of the convex polygon image block is a preset shape and a similarity between the convex polygon image block and a preset image block exceeds a preset first threshold.

1 more element

Dependencies are inferred from the claim text.

Facts

Application

14/572,210Filed 16 Dec 2014

Priority

CN 201310723030.024 Dec 2013

Published

25 Jun 2015

Term ends

Not estimatedThe source records don’t support an estimate.

Classification7 codes

G06V 10/44
Extraction of image or video features: local feature extraction by analysis of parts of the pattern, e.g. by detecting edges, contours, loops,…
G06F 18/21
Analysing: design or setup of recognition systems or techniques; Extraction of features in feature space; Blind source separation
G06T 7/70
Image analysis: determining position or orientation of objects or cameras
G06V 10/751
Organisation of the matching processes, e.g. simultaneous or sequential comparisons of image or video features; Coarse-fine approaches, e.g.…:…

Method, apparatus, and device for detecting convex polygon image block

Life of this patent

Method, apparatus, and device for detecting convex polygon image block

Life of this patent

Abstract

Claims14