The computer should also recognize pictures through OCR technology ah. That is, optical character recognition technology. For example, the cloud pulse of document recognition, is through this technology to transform the picture text.

Using OCR, image processing and second full-text search technology, unstructured data into structured data for strategic analysis, as well as document image enhancement processing, fuzzy retrieval, multi-conditional multi-keyword retrieval, automatic classification of documents, access and sharing and big data analysis.