Using computer vision for the automatic inspection and alignment of television displays

The ability to automatically measure the image quality of a television display is a valuable resource in display manufacturing, competitive analysis and engineering review. In the past two decades, the advent of microcomputers has made automatic inspection feasible through the use of computer vision. Most of the approaches developed to date can be divided into two groups: fixtured systems, with fixed or movable cameras, and position independent systems, with one or more cameras. This paper describes the motivation for using computer vision in television manufacturing, gives a history of its use, classifies the common methods used, and describes an experimental implementation built by the authors.