Textile fabric inspection system

Details Textile fabric inspection system Textile fabric inspection system

1996-09-11

1998-06-30

Britton, Howard

Television

Special applications

Manufacturing

348128, 382111, H04N 718

Patent

active

057741778

ABSTRACT:
A method and apparatus for inspecting textile fabric which automatically detects defects within the field of view of a video camera. A frame of video information is captured and a digital image array is generated. A mask or operator is then used to generate a gradient image from the digital image array. The gradient image is then thresholded, dilated, optionally eroded, and then subjected to a blob analysis. A special operator is utilized in order to generate a gradient image which slow grey level transitions (e.g., oil spots) are identifiable.

REFERENCES:
patent: 4581762 (1986-04-01), Lapidus et al.
patent: 4817184 (1989-03-01), Thomason et al.
patent: 4853970 (1989-08-01), Ott et al.
patent: 4876457 (1989-10-01), Bose
patent: 4974261 (1990-11-01), Nakahara
patent: 5394183 (1995-02-01), Hyslop

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