Research Of Image Recognition Technology In Paperless Mark Of Blank Question Identify

Digital image recognition as an independent discipline, in recent year s h as play a more and mo re important role in t he field of computer vision research.Image reco gnition techn ology is the us e of comp uter vision gathering phys ical obj ect s, on the basis of image data, let the mach ine to i mi tate huma n visual, automatically complete s o me information processing ca p abilities,imitating human visual image recog n ition ab ility, i n stead of human large quantities of imag e recognition an d classif ication tasks.Combined project experience, this pap er main ly studies usi ng digital imag e recognition technology to complete the paperless identification marking of subject ive questions blank.Th e paperless mark ing can be extended to the field of China’s l arge ex ams.Large-scale test of the tes t structure generall y divided into s ubjective and objective questi ons.Now f o r objective qu estions in pap erless marking, automatic grading the technology has been very matur e,but for paperless automatic mar king of subjective questio ns review technology research: not y et.Bla nk examina tion paper the picture titled zer o question s, if yo u can use the compu ter image recognition technolog y, directly to the blan k test by computer automatic r eview assign ed a zero, will greatly impr o ve readi ng efficiency, reduce t he financial burden on teachers evaluation.Recognition accurac y and high real time capabi lity is the key to this paper b lank problem iden tificatio n criteria.Simul ated based on thes ubjective topic image recognition, accordi ng to t he par ticu lar ity of tes t imag es usi ng the gray histogram as the main charact e ristics of identificat ion.An d in order to i mprove the effect o f recog n ition and impr o ve recognition time, u sing the gray hist ogram to complete id enti fication model based on regional crea te and complete the blank i mage r ecognition.This paper expounds the image r ecognition techn o logy research and dev elopment status of image recogni tion in practical application system is intro d uced in this paper the performance evaluation index, summarizes the key technologies used in the curr ent digital image recog nition and image recognition system of key processes, analysi s of digital image identification technology in the appli cat ion of paper less ma rking system fo r each process.With opencv and finally id enti fy the MFC simul atio n process, the extractio n of image featur es as a blank paper mod el to s earch in the images of the test pap er blank paper.