Method and equipment for realizing full-text retrieval of character picture and image type scanning copy

The invention relates to the field of document processing, and discloses a method and equipment for realizing full-text retrieval on a character picture and an image type scanning copy, a full-text retrieval system for the character picture and the image type scanning copy is loaded on a local GPU (Graphic Processing Unit) server, and a user uploads the character picture to be subjected to full-text retrieval or a long-text image type PDF format scanning copy document, the system adopts an OCR (Optical Character Recognition) subsystem based on a depth learning technology and a visual information analysis algorithm, then a user inputs a keyword to be retrieved, finally, the keyword is highlighted and displayed on a character picture and a long text image type PDF scanning copy, and the system supports that a retrieval result is checked at a previous place and a next place. By means of the method, full-text retrieval can be accurately and rapidly conducted on the character image or long text image type PDF scan