Method and system for line-by-line one dimensional fabric inspection
OwnerShmuel Coheninventor
Life of this patent
Estimating the term…
Abstract
System and method for on-loom fabric inspection includes an imaging device collecting images of a weaving area of a loom, a frame grabber receiving images of a fell-pick of and sending compact image data packages to an image processor. Irregularities may be detected by comparing a digital string representing the characteristic sequence of warp-risers and warp-sinkers along the fell-pick with a corresponding row (901) of required warp-risers and required warp-sinkers in a reference matrix (900) representing a required weaving pattern. The digital string may be a sequence of Boolean values.
Claims21
A method for inspecting woven fabric, comprising:
- providing an on-loom fabric inspection system (500);
- obtaining a reference matrix (900) representing a required weaving pattern, said reference matrix (900) comprising a two dimensional array of values arranged as a sequence of rows, each row corresponding to a series of required warp-risers (971) and required warp-sinkers (973) along a single pick;
- capturing an image of a fell-pick (805) along a fell line of the weaving area (518);
- identifying in said image a characteristic sequence of warp-risers (801) and warp-sinkers (803) along said fell-pick (805);
- generating a digital string (820) corresponding to said characteristic sequence;
- and
- comparing said digital string (820) with a corresponding row (901) of the reference matrix (900).
An on-loom inspection system (500) comprising:
- at least one imaging device (522) configured to collect images of at least one section of a weaving area (518) of a loom (502);
- at least one image processor (524) configured and operable to detect irregularities in image data;
- and
- at least one frame grabber (532) configured and operable to receive images of at least a fell-pick (805) from said imaging device (522) and to send a compact image data package (521) to said image processor (524);
- wherein said compact image data package (521) comprises a characteristic sequence of warp-risers (801) and warp-sinkers (803) along said fell-pick (805).
Dependencies are inferred from the claim text.