Press Release:  Immediate Release


Subject: “Shape of Color” from Sightech PC Eyebot adds new dimension to inspection automation

San Jose, CA

Sightech Vision Systems, Inc.

Contact us at 408 282 3770 or

Sightech Vision Systems announces their new Coloration mode for color recognition and inspection.

The Coloration inspection mode is based on Sightech’s proprietary “shape of color” capability. This mode provides a neighborhood color analysis which evaluates color in much the same way as we perceive it, emphasizing the relative color rather than the absolute spectral signature.

The “shape of color” mode is especially useful wherever boundries or abrupt changes of color, tint, or hue occur. Instances of these would be a yellow-green fringe on an otherwise green leaf, or holes in a colored surface. The neighborhood of the color provides a characteristic value due to color changes around the specific pixels of interest.

Like many of the PC Eyebot’s features, the “shape of color” is a derivative value from analysis of a larger number of pixels. It is the result of a hierarchy analyzed for most accurate resultant with both spatial and qualitative considerations. Similar functions are used with feature analysis for edge operators, texture, and area based analysis in black and white. This mode of hierarchial data analysis is patented by Sightech, and unrivaled in the marketplace for inspection automation.

Once features are established under this Coloration analysis mode, the patterns and values are stored in “neural ram” on the PC Eyebot, during the “learn” process. The PC Eyebot is trained to remember “good” features, and identify “bad” or unlearned features. These “bad” or unlearned features show up as a “score”. The user determines what value of “bad” features will trigger a reject, by setting a threshold value under “sensitivity”.

A user may also direct the PC Eyebot to “forget” the “bad” items, in much the same way as he allowed it to “learn” the “good” items. This can eliminate or neutralize background, clutter, or similar items without desired features. In Coloration mode, standard feature modes, or texture mode, the User is always the one who decides what is accepted, and what is rejected. And you can change the sensitivity with each batch.

The PC Eyebot continues to solve applications previously unfeasible with previous generations of inspection processors. To see some applications, and get more on how to setup and train the PC Eyebot, visit and select Applications. For a discussion of your application, or perhaps a no charge feasibility test, contact us at 408 282 3770 or