KR960042446A

KR960042446A - Image recognition device

Info

Publication number: KR960042446A
Application number: KR1019950014439A
Authority: KR
Inventors: 송병탁
Original assignee: 배순훈; 대우전자 주식회사
Priority date: 1995-05-31
Filing date: 1995-05-31
Publication date: 1996-12-21

Abstract

본 발명은 화상 인식 장치에 관한 것으로서, 더욱 상세하게는 화상 인식에 필요한 2치화 레벨값을 인식물에 따라서 적절하게 변화시킬 수 있는 화상 인식 장치에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image recognition device, and more particularly, to an image recognition device capable of appropriately changing a binarization level value required for image recognition according to a recognition object.

이를 위하여 본 발명은, 기준 제어 신호에 따라 입력 화상 신호의 2치화 레벨을 변경하여 출력하는 2치화 변환부(10); 2치화 변화부(10)로부터 2치화된 화상 신호중 외부 제어 신호에 대응하는 화상 신호만을 추출하여 출력하는 관심 영역 추출부(20); 관심 영역 추출부(20)로부터 추출된 화상 신호중 외부로부터 제공되는 특징 검출 신호에 대응되는 화상 신호만을 추출하는 특징 추출부(30); 특징 추출부(30)로부터 제공되는 화상 신호의 2치화 레벨에 따라 화상 신호가 화상 인식이 용이한 2차화 레벨을 갖도록 하는 임계값 제서 신호를 상기 2치화 변화부(10)로 피드백하는 임계값 결정부(40); 특징 추출부(30)에서 출력되는 화상 신호에 따라 화상 인식을 행하는 처리부(50)로 구성되어, 2치화 임계값을 결정하기 위한 예비 실험을 할 필요가 없으며 또한, 정밀하게 2치화 할 수 있어 2치화 한 후 수생되는 처리과정에서 정확도가 향상되는 효과가 있다.To this end, the present invention, the binary conversion unit 10 for changing and outputting the binarization level of the input image signal in accordance with the reference control signal; A region of interest extracting unit 20 for extracting and outputting only an image signal corresponding to an external control signal among the binarized image signals from the binarization changing unit 10; A feature extraction unit 30 for extracting only an image signal corresponding to a feature detection signal provided from the outside among the image signals extracted from the region of interest extraction unit 20; Determining a threshold value for feeding back a threshold value suppressor signal to the binarization changer 10 such that the image signal has a secondary level for easy image recognition according to the binarization level of the image signal provided from the feature extraction unit 30. Part 40; It is composed of a processing unit 50 which performs image recognition according to the image signal output from the feature extraction unit 30, and does not need to perform a preliminary experiment for determining the binarization threshold value, and it is possible to precisely binarize 2 There is an effect of improving accuracy in the aquatic process after digitization.

Description

Image recognition device

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

제1도는 화상 인식 장치.1 is an image recognition device.

Claims

An image recognition apparatus comprising: a binarization change unit (10) for changing and outputting a binarization level of an input image signal according to a reference control signal; An area of interest extracting unit 20 for extracting and outputting only an image signal corresponding to an external control signal among the binarized image signals from the binarization changing unit 10; A feature extractor (30) for extracting only an image signal corresponding to a feature detection signal provided from the outside among the image signals extracted from the ROI extractor (20); A threshold for feeding back a threshold control signal to the binarization changer 10 such that the image signal has a binarization level for easy image recognition according to the binarization level of the image signal provided from the feature extraction unit 30. A value determination unit 40; And a processing unit (50) which performs image recognition according to the image signal output from the feature extraction unit (30).

※ Note: The disclosure is based on the initial application.