Method and device for acquiring keywords

摘要

Locating text areas in an image and recognizing text contents in the text areas through optical character recognition, OCR; selecting a first class of pending keywords from the recognized text contents to search for webpages; extracting a second class of pending keywords from the retrieved webpages; and determining one or more keywords corresponding to the image from at least the second class of pending keywords. With the embodiment of the invention, both OCR and webpage searching can be combined so that the webpages can be retrieved based upon the first class of pending keywords recognized and selected through OCR to ensure convergence of the keywords and then the second class of pending keywords can be selected from the retrieved webpages to ensure correctness of the keywords.