20.500.12556/DKUM-19835 OPTIČNO RAZPOZNAVANJE ZNAKOV Z NEVRONSKIMI MREŽAMI NA GRAFIČNI PROCESNI ENOTI OPTICAL CHARACTER RECOGNITION BY USING NEURAL NETWORKS ON GRAPHICAL PROCESSING UNIT Cilj diplomske naloge je izdelava sistema za optično prepoznavanje znakov z uporabo nevronske mreže. Računsko zahtevne dele sistema smo pohitrili z uporabo grafične procesne enote (GPU). Naš sistem za OCR opišemo v treh glavnih sklopih: razbitje dokumenta na znake (segmentacija), prepoznavanje posamičnih znakov ter paralelizacija izvajanja na GPU. Zatem predstavimo aplikacijo, v katero smo integrirali našo rešitev. Rezultati testiranj so pokazali, da je natančnost prepoznavanja znakov OCR-A in OCR-B okrog 98%, Courier New pa 92%, medtem ko je pohitritev izvajanja kode na GPU bila minimalno petkratna napram izvajanju na CPU. The goal of this diploma work is to develop a system for optical character recognition (OCR) by using neural network. Computationally intensive parts of the system are going to be implemented on the graphics processing unit (GPU). We present our OCR system in three main parts: segmentation of document on characters, recognition of individual characters, and parallelization of execution on the GPU. Afterwards, we present an application with integrated our solution. Results of testing pointed out that the accuracy of OCR-A and OCR-B characters recognition was around 98%, while at Courier New characters this rate was 92%. A code execution on GPU was at least five times faster than on CPU. optično prepoznavanje znakov nevronske mreže grafična procesna enota Optical character recognition neural networks graphical processing unit true true false [M. Furlan] Slovenski jezik Angleški jezik Diplomsko delo/naloga 2011-08-30 20:43:47 2011-09-12 14:05:28 2022-04-13 15:41:47 2023-12-26 03:16:25 2011 0 Maribor 0 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 004.352.242:004.032.26(043.2) 15317014 URN:SI:UM:DK:9PYJHR2T UNI_Furlan_Miha_2011.pdf UNI_Furlan_Miha_2011.pdf 1 8DE1CC37EE24C052E94FD7FAACD68137 da075f0b852e38fe32be58db259a5cd4003357f876431cf43c91e6aa7e524392 79739860-7c05-11eb-bb7a-00155d0001ca 20.500.12556/dkum/53a351eb-eee9-4015-b08d-c44bee884519 https://dk.um.si/Dokument.php?lang=slv&id=24240 Fakulteta za elektrotehniko, računalništvo in informatiko 0 0 0