Application Example : Photo OCR
1. Photo OCR
1.1 Problem Description and Pipeline
Photo OCR pipeline
1.2 Sliding Windows
Pedestrian detection框的宽高比类似
Supervised Learning for pedestrain detection
Sliding window detection. 每次需要resize到输入的固定大小
Text detection. Expansion
Character segmentation
1.3 Getting Lots of Data and Artificial Data
人工合成数据
通过变形原样本扩大数据集
加入噪声
一般图像加入噪声不能改进效果
获取更多的数据
1.4 Ceiling Analysis : What part of the Pipeline to Work on Next (上限分析)
Ceiling Analysis
Another Ceiling Analysis example
Question.1
2. Summary
Main topics
