Paper laboratory sheet image preprocessing method and system

Paper laboratory sheet image preprocessing method and system

The invention discloses a paper laboratory sheet image preprocessing method and system. The method comprises the following steps: constructing a laboratory sheet image preprocessing model comprising a background estimation sub-network, a shadow removal sub-network and a crease removal sub-network; c...

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Hauptverfasser: CHEN PING, LI DENGWANG, ZUO YUWEI, WU BING, HAO HUAIBO, HUANG PU
Format: Patent
Sprache:chi ; eng
Schlagworte:
CALCULATING
COMPUTER SYSTEMS BASED ON SPECIFIC COMPUTATIONAL MODELS
COMPUTING
COUNTING
IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
PHYSICS
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creator CHEN PING
LI DENGWANG
ZUO YUWEI
WU BING
HAO HUAIBO
HUANG PU
description The invention discloses a paper laboratory sheet image preprocessing method and system. The method comprises the following steps: constructing a laboratory sheet image preprocessing model comprising a background estimation sub-network, a shadow removal sub-network and a crease removal sub-network; carrying out feature learning on the paper laboratory sheet image by adopting a background estimation sub-network to obtain a global background color and spatial distribution features of background and non-background pixels so as to construct a shadow attention map; training the shadow removal sub-network according to the original paper laboratory sheet image, the global background color and the shadow attention map to obtain a shadow-free image; and constructing a crease attention graph by adopting the background estimation sub-network according to the shadow-free image, and training the crease removal sub-network according to the shadow-free image and the crease attention graph to obtain a shadow-free crease-free
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subjects CALCULATING
COMPUTER SYSTEMS BASED ON SPECIFIC COMPUTATIONAL MODELS
COMPUTING
COUNTING
IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
PHYSICS
title Paper laboratory sheet image preprocessing method and system
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