HP MFP Sending Software 4.9X manual I.S. OCR engine, 3DSS-enabled devices Technical Detail

Table 2-3DSS-enabled devices – Technical Detail

Technical detail

List of supported devices:	See Supported devices – Legacy device support on page 5
Minimum firmware version:	See Table 3-3	DSS 4.91 supported device firmware revisions
	on page 25
Feature matrix:	See Table 1-1	Feature comparison on page 7.

I.R.I.S. OCR engine

DSS uses I.R.I.S. OCR engine version 12 to provide Optical Character Recognition (OCR) and High Compression PDF functionality. The engine features Intelligent High Quality Compression (iHQC) technology™.

Figure 2-4 OCR engine

The figure above shows how the process flow OCR processing in DSS. When DSS receives a job where OCR processing is required it invokes the I.R.I.S. OCR engine using COM (Component Object Model). The image data/document is transferred together with control parameters, such as the required output file type. Once OCR processing is completed the searchable document is passed back to DSS which delivers the document to the destination.

DSS is a multi-threaded application and will launch multiple instances of the OCR engine when there are multiple jobs in the queue that require OCR processing. We refer to this as ‘parallel processing of OCR jobs’. This makes the OCR feature scalable, which means that average job processing times will be improved if the server's resources are improved. For instance, adding additional CPUs and more memory to the server will improve the average processing time of each OCR job when the server is processing multiple jobs simultaneously. This is a significant improvement over previous versions of DSS, where OCR processing was serial.

Table 2-4I.R.I.S. OCR engine – Technical Detail

Technical detail

OCR engine: I.R.I.S. OCR engine version 12

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