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Error Correction Level: Error Correction in QR Codes is based on Reed-Solomon Codes , a specific form of BCH error correction codes [3, 8].
There are four levels (Table 1) of error correction that can be chosen by the user at creation time.
L 7%
M 15%
Q 25%
H 30%
Table 1: Er
查看全文 There are four levels (Table 1) of error correction that can be chosen by the user at creation time.
L 7%
M 15%
Q 25%
H 30%
Table 1: Er
#ECC#
Error correction
(data restoration)
Level L Approx. 7% of codewords can be restored.
Level M Approx. 15% of codewords can be restored.
Level Q Approx. 25% of codewords can be restored.
Level H Approx. 30%of codewords can be restored.
Error correction
(data restoration)
Level L Approx. 7% of codewords can be restored.
Level M Approx. 15% of codewords can be restored.
Level Q Approx. 25% of codewords can be restored.
Level H Approx. 30%of codewords can be restored.
闽商在赣形成行业集群 民营医疗占南昌市场9成份额
江西省福建总商会会长韩世忠介绍，目前商会会员涉及行业上百个，其中一些企业在江西形成了行业集群，具有一定的影响力和市场占有率。如茶叶行业，福建籍茶叶经销商在南昌市场占有60%的市场份额。水暖建材、房地产、路桥建设、酒店服务等行业均占了
查看全文 江西省福建总商会会长韩世忠介绍，目前商会会员涉及行业上百个，其中一些企业在江西形成了行业集群，具有一定的影响力和市场占有率。如茶叶行业，福建籍茶叶经销商在南昌市场占有60%的市场份额。水暖建材、房地产、路桥建设、酒店服务等行业均占了
刘翔宣布与葛天离婚：性格不合 祝愿彼此更好
2015-06-25 http://view.inews.qq.com/w/WXN20150625046694071?refer=nwx&groupid=1435229317&msgid=0&key=af154fdc40fed0030bda4b7ada6f48c0b3ccc3f1448a7d46a9fca43ebe57018dd5c38136181dfc0ae0cb8066feb8e5fc&version=15030111&devicetype=iPhone+
查看全文 2015-06-25 http://view.inews.qq.com/w/WXN20150625046694071?refer=nwx&groupid=1435229317&msgid=0&key=af154fdc40fed0030bda4b7ada6f48c0b3ccc3f1448a7d46a9fca43ebe57018dd5c38136181dfc0ae0cb8066feb8e5fc&version=15030111&devicetype=iPhone+
