Vision inspection systems and methods using light sources of different wavelengths

A method for inspecting welds and/or surface features using a first vision sensing assembly including a first light source and a first sensor and a second vision sensing assembly including a second light source and a second sensor, the method comprising:

• illuminating a workpiece including one or more welds and/or surface features with light emitted from the first light source having a first wavelength;
• illuminating the workpiece with light emitted from the second light source having a second wavelength different than the first wavelength;
• generating a first image with the first sensor based on the light having the first wavelength;
• generating a second image with the second sensor based on the light having the second wavelength;
• and
• combining the first image generated by the first sensor and the second image generated by the second sensor based on a relative velocity between the workpiece and the first vision sensing assembly and the second vision sensing assembly, and a distance between the first light source and the second light source.

A vision inspection system for welds and/or surface features, the vision inspection system comprising:

• a scanning station to support a workpiece including one or more welds and/or surface features;
• a first vision sensing assembly configured to illuminate the workpiece and generate an image of the one or more welds and/or surface features of the workpiece, the first vision sensing assembly including a first light source configured to emit light having a first wavelength towards the workpiece and a first sensor configured to detect the light having the first wavelength reflected by the workpiece;
• a second vision sensing assembly configured to illuminate the workpiece and generate an image of the one or more welds and/or surface features of the workpiece, the second vision sensing assembly including a second light source configured to emit light having a second wavelength towards the workpiece and a second sensor configured to detect the light having the second wavelength reflected by the workpiece;
• and
• a control module in communication with the first vision sensing assembly and the second vision sensing assembly, the control module configured to combine image data from the first sensor and image data from the second sensor based on a relative velocity between the workpiece and the first vision sensing assembly and the second vision sensing assembly, and a distance between the first light source and the second light source
• wherein the second wavelength is different than the first wavelength.