Detectron under Android

Is that possible to embed Detectron into Android application?
I can use object detection model in my Android app like any other model, can’t I??

I think it is not a good idea to embed models like Faster-RCNN and Mask-RCNN into Android. In order to do that you can use quantization techniques to reduce the memory.

what about SSD, Yolo?

For SSD and Yolo you can find many optimized versions easily. If you are aiming to run the model on gpu you can use the optimized model that is available in TensorRT for yolo. If your device contains cpu then try to do optimizations in openvino.