Barcode Scanner Notification System for Image Processing Feedback
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Solution Overview
Problem
Imager-based barcode scanning devices in mobile computers often take significant time to process images, leading to user uncertainty about system functionality due to delayed display of processed images.
Innovation Solution
A data capture device with an imager that captures barcodes and associated images, featuring a notification system to inform users that images are being processed, including display in low resolution, LED, or audible signals, while decoding and enhancing images, which includes removing skew, improving contrast, and balancing illumination.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the processor processes the image sequentially after decoding the barcode, then the image processing quality is improved, but the user perceives system unresponsiveness due to delayed feedback
Solution Approach 1:
The notification system provides feedback to the user in advance, before the image processing is actually complete. This preliminary action of notifying the user that processing is underway reduces the perceived waiting time and system unresponsiveness, while the actual sequential processing continues to ensure high image quality.
2Loss of information
If the system displays the processed image to the user, then the user can see the result, but the processing time increases causing user uncertainty
Solution Approach 1:
The notification system provides intermediate feedback to the user during the image processing phase, indicating that processing is in progress. This feedback mechanism maintains user awareness and reduces uncertainty about system functionality, allowing the full processing time to be utilized without causing user anxiety or perceived delays.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enhances user feedback during image processing, reducing perceived system downtime by providing timely notifications and improving image quality through sequential processing and barcode position information.
Implementation Method 1
The notification system can include a display, a light emitting diode (LED), and/or a loudspeaker.
Data Source
AI summary
A data capture device is described. The data capture device includes an imager simultaneously capturing a barcode and an image associated with the barcode. A memory is coupled to the imager for storing the barcode and the image. A processor is coupled to the memory for decoding the barcode and processing the image. A notification system notifies a user that the image is being processed prior to the processor completing the processing of the image.