零基础入门CV赛事- 街景字符编码识别 赛事报名页面
数据下载链接
来自SVHN数据集
| file | size | link |
|---|---|---|
| mchar_train.zip | 345.91MB | http://tianchi-competition.oss-cn-hangzhou.aliyuncs.com/531795/mchar_train.zip |
| mchar_train.json | 3.16MB | http://tianchi-competition.oss-cn-hangzhou.aliyuncs.com/531795/mchar_train.json |
| mchar_val.zip | 200.16MB | http://tianchi-competition.oss-cn-hangzhou.aliyuncs.com/531795/mchar_val.zip |
| mchar_val.json | 1.03MB | http://tianchi-competition.oss-cn-hangzhou.aliyuncs.com/531795/mchar_val.json |
| mchar_test_a.zip | 370.6MB | http://tianchi-competition.oss-cn-hangzhou.aliyuncs.com/531795/mchar_test_a.zip |
| mchar_sample_submit_A.csv | 507.83KB | http://tianchi-competition.oss-cn-hangzhou.aliyuncs.com/531795/mchar_sample_submit_A.csv |
数据标签含义
| Field | Description |
|---|---|
| top | 左上角坐标X |
| height | 字符高度 |
| left | 左上角最表Y |
| width | 字符宽度 |
| label | 字符编码 |
字符框坐标含义
评测标准
三种解题思路
- 简单入门思路：定长字符识别
- 专业字符识别思路：不定长字符识别
- 专业分类思路：检测再识别
注意事项：
- 仅能使用所提供的数据
- 一张图可能有多个字符，随之有多个数字框
- 多个字符的图片，任何一个字符错误都算错
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