Tencent Cloud Developer
Mar 6, 2020 · Artificial Intelligence
WeChat "Scan" Object Detection: Mobile AI Model Design, Optimization, and Deployment
The paper presents a lightweight, anchor‑free CenterNet‑based object‑ness detector for WeChat’s Scan feature, built on a ShuffleNetV2 backbone with enlarged 5×5 depth‑wise convolutions, a streamlined detection head, and a Pyramid Interpolation Module, then quantized, ONNX‑converted and NCNN‑deployed to achieve a 436 KB model running in ~15 ms per frame on an iPhone 8 CPU.
CenterNetShuffleNetV2anchor-free
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