高速邮政信封自动视觉识别处理系统
◎Processing Speed performance
– Camera speed: 26fps (40ms)
– Image processing & characters segmentation: < 30ms
– Gabor Feature extraction: ~ 200us
– Classification with multi-prototype: ~1.2ms pc
< 60ms for a typical envelop with about 50 chars
– Data compression: ~15ms
– Data storage: ~5ms
– Whole processing time: <150ms per envelop (Pentium 1.8G CPU, 512M memory)
◎Image Resolution:
– 130M pixels (1280×1024)
◎Font supported:
– Song, Fang-Song, He, Kai, Time & New Noman
◎Character set
– GB 6763 simple Chinese + English + symbols
– GB 6763 traditional Chinese + English + symbols
◎Classification performance
– Segmentation: ~ 99%
– Recognition rate: >98%