Intelligence Technology behind WeChat XIAO Bin Pattern Recognition - - PDF document
26/9/2014 Tencent, Inc. Intelligence Technology behind WeChat XIAO Bin Pattern Recognition Center, WeChat Product Department WeChat Intelligence Speech Technology WeChat Intelligence Image Technology 1 26/9/2014 Image Technology
Tencent, Inc.
Pattern Recognition Center, WeChat Product Department
Speech Technology Image Technology
Visual Search Character Recognition Bank card Recognition
Visual Search Available on kinds of rigid plane: book cover, CD cover, poster, etc. Recognition Accuracy Rate: 90% response time: in < 1 seconds Daily Usage amount: 500,000
Extract feature Quantize feature
Feature Indexing and Feature Indexing and Matching Geometric Verify
Database
识别结果展示 Image Image Compression Display Network Feature extraction and Matching Geometric Verify Mobile Visual Search System
developers
Translate the English word caught by camera into Chinese, accuracy rate: over 92% Mixed composing with Chinese and English, common font Simple or complicated scene
Recognize bank card number, bank name, layout, etc. Accurate: accuracy rate is over 99% in a sample of 13000 bank card pictures Quick response: 100ms processing time per frame in major smart phone Huge Support: cover 97%+ embossing card and nearly 100% flat card
WeChat Shake >Music > recognize the song in database through audio fingerprinting > show and play with lyric Daily Usage amount: over 9million Share to WeChat Moments: 10% Recognition Rate: over 99%, Top level in the world 3-5 seconds quick response