Original Date: 05/08/1995
Revision Date: 01/18/2007
Information : Digital Photographic Visual Aid
McDonnell Douglas Aerospace (MDA)-St. Louis uses a Digital Photographic Visual Aid (DPVA) to add annotated photographic quality images to work instructions. DPVA improves work instructions by providing realistic visual images that are easier to interpret than line drawings, and it can quickly produce either hard-copy or electronic images.
The DPVA process consists of videotaping a part or assembly and digitizing the image using a PC and related software. Annotations depicting part numbers, notes, or instructions can be added to the image using imaging editing software. A DPVA station consists of a VHS camcorder, VCR, color monitor, laserjet printer, access to a shared data server, and a PC with color monitor (Figure 2-8). Additional hardware and software are used to extract, annotate, and format individual visual aids.
The DPVA system, though currently working in color, is restricted to grayscale hard copy. MDA-St. Louis will enhance the system by providing color hard copy, and by electronically transmitting both still and moving images to the workstation where they can be displayed in color. MDA-St. Louis is expecting to significantly reduce the time to take, capture, and process a visual from the currently-required 20 minutes by increasing the power of the system. Other improvements include producing sharper and higher-contrast images. To accomplish this, MDA-St. Louis has been experimenting with digital still cameras.
Figure 2-8. Digital Photographic Visual & System Process
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