718c41634f
1.项目后端整体迁移至PaddleOCR-NCNN算法，已通过基本的兼容性测试 2.工程改为使用CMake组织，后续为了更好地兼容第三方库，不再提供QMake工程 3.重整权利声明文件，重整代码工程，确保最小化侵权风险 Log: 切换后端至PaddleOCR-NCNN，切换工程为CMake Change-Id: I4d5d2c5d37505a4a24b389b1a4c5d12f17bfa38c
119 lines
3.2 KiB
Markdown
119 lines
3.2 KiB
Markdown
caffe-android-lib https://github.com/sh1r0/caffe-android-lib
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mini-caffe https://github.com/luoyetx/mini-caffe
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openblas-0.2.20 https://github.com/xianyi/OpenBLAS
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ncnn https://github.com/Tencent/ncnn
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squeezenet_v1.1 https://github.com/DeepScale/SqueezeNet/tree/master/SqueezeNet_v1.1
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mobilenet_v1 https://github.com/shicai/MobileNet-Caffe
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vgg16 https://gist.github.com/ksimonyan/211839e770f7b538e2d8
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Host platform and compiler configuration:
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fedora 27, android-ndk-r15c, target arch = arm64-v8a
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we manually update openblas package to version 0.2.20 in caffe-android-lib for better performance
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Device: Nexus 6p
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OS: LineageOS 15.1(Android 8.1.0), ROM newly flashed without any third-party APP installed
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CPU: Snapdragon 810 (Cortex-A57 2.0GHz x 4 + Cortex-A53 1.55GHz x 4)
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RAM: 3G
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Benchmark method:
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Run squeezenet, mobilenet inference 23 times in a loop, discard the first three warmup records, and then calculate the average inference time
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Run vgg169 times in a loop, discard the first warmup record, and then calculate the average inference time
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Since the system may force SOC lowering its frequency when temperature goes high, sleep over 1 minute before each benchmark to prevent this issue.
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fps performance: fps = 1000 / avgtime(ms)
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cpu usage: take the CPU value in top utility output
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memory usage: take the RES value in top utility output
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the overall power consumption and performance per watt:
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Disable usb charging: adb shell echo 0 > /sys/class/power_supply/battery/charging_enabled
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current(μA) = adb shell cat /sys/class/power_supply/battery/current_now (multiply -1 for 810 chip)
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voltage(μV) = adb shell cat /sys/class/power_supply/battery/voltage_now
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power consumption(mW) = current / 1000 * voltage / 1000 / 1000
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performance per watt(1000fps/W) = fps / power consumption * 1000
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***
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The binary size after debug stripping
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***
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squeezenet
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mobilnet
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vgg16
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