Method and system for extracting text from an engineering drawing

A text extraction system to extract text from an engineering drawing for performing Optical Character Recognition (OCR), comprises:

• a processor;
• and
• a memory communicatively coupled to the processor, wherein the memory stores processor-executable instructions, which, on execution, cause the processor to:
• receive an image of an engineering drawing comprising a plurality of components;
• classify each of the plurality of components in the image (206) to be one of a textual component and a non-textual component;
• identify at least one word element for textual components from the plurality of components based on segmentation of the plurality of components, wherein the segmentation comprises:
• draw a plurality of horizontal edge projections of a predefined length for each of the textual components;
• and
• identify the textual components to be associated with the at least one word element when horizontal edge projection of each of the textual components overlaps with adjacent textual component;
• and
• provide the at least one word element as extracted text for performing OCR on the engineering drawing.

A non-transitory computer readable medium including instructions stored thereon that when processed by at least one processor cause a device to perform operations comprising:

• receiving an image of an engineering drawing comprising a plurality of components;
• classifying each of the plurality of components in the image to be one of a textual component and a non-textual component;
• identifying at least one word element for textual components from the plurality of components based on segmentation of the plurality of components, wherein the segmentation comprises:
• drawing a plurality of horizontal edge projections of a predefined length for each of the textual components;
• and
• identifying the textual components to be associated with the at least one word element when horizontal edge projection of each of the textual components overlaps with adjacent textual component;
• and
• providing the at least one word element as extracted text for performing OCR on the engineering drawing.