JPH026208U

JPH026208U -

Info

Publication number: JPH026208U
Application number: JP8403888U
Authority: JP
Priority date: 1988-06-24
Filing date: 1988-06-24
Publication date: 1990-01-16

Description

[Brief explanation of drawings]

第１図は本考案の構成を例示する構成図、第２
図は本考案の一実施例の説明図、第３図はその縞
模様投影装置４及び撮像管６等を示す部分図、第
４図はその制御装置７および画像処理装置８の構
成を示すブロツク図、第５図ないし第７図はその
処理を説明する流れ図、第８図及び第９図はその
各処理において形成される画像の説明図である。Ｍ１，２……被検査物（車体）、Ｍ２，４……
明暗模様投影手段（縞模様投影装置）、Ｍ３，６
……撮像手段（撮像管）、Ｍ４……画像記憶手段
、Ｍ５……縞方向検出手段、Ｍ６……参照画像形
成手段、Ｍ７……重ね合わせ手段、Ｍ８……表面
平滑度判定手段、７……制御装置、８……画像処
理装置。 Figure 1 is a configuration diagram illustrating the configuration of the present invention;
The figure is an explanatory diagram of one embodiment of the present invention, FIG. 3 is a partial diagram showing the striped pattern projection device 4, image pickup tube 6, etc., and FIG. 4 is a block diagram showing the configuration of the control device 7 and image processing device 8. 5 to 7 are flowcharts for explaining the processing, and FIGS. 8 and 9 are explanatory diagrams of images formed in each of the processing. M1, 2...Object to be inspected (vehicle body), M2, 4...
Bright and dark pattern projection means (striped pattern projection device), M3,6
...imaging means (image pickup tube), M4...image storage means, M5...stripe direction detection means, M6...reference image forming means, M7...superposition means, M8...surface smoothness determination means, 7... ...control device, 8...image processing device.

Claims

[Scope of Claim for Utility Model Registration] Bright and dark pattern projection means for irradiating a predetermined bright and dark striped pattern onto the object to be inspected; an imaging means for capturing an image as an intensity level signal of the light, and a light and dark striped pattern imaged by comparing the intensity level signal of the light outputted by the imaging means with a predetermined reference value, and a light and dark striped pattern of a binary signal; an image storage means for storing an image of the light and dark striped pattern of the binary signal; a stripe direction detection means for detecting the stripe direction of the light and dark striped pattern of the stored image stored in the image storage means; a reference image forming means for forming a reference image by moving a predetermined distance in the striped direction detected by the direction detecting means; and superimposing the stored image and the reference image;
A superimposing means for calculating a superimposed image that is an exclusive OR of the bright and dark striped patterns of both images, and a surface smoothness determining means for determining the surface smoothness of the object to be inspected from the bright and dark striped pattern of the superimposed image. An automatic surface smoothness inspection device characterized by: