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MediaPipe在Android端的接入手跟踪hand tra

MediaPipe在Android端的接入手跟踪hand tra

作者: hjm1fb | 来源:发表于2021-01-27 15:09 被阅读0次

    完整Demo下载地址

    In order to use MediaPipe on earlier Android versions, MediaPipe needs to switch
    to a lower Android API level. You can achieve this by specifying `api_level =
    $YOUR_INTENDED_API_LEVEL` in android_ndk_repository() and/or
    android_sdk_repository() in the
    [`WORKSPACE`](https://github.com/google/mediapipe/blob/master/WORKSPACE) file.
    
    Note: To reduce the binary size, consider appending `--linkopt="-s"` to the
        command below to strip symbols.
    

    用的版本是V0.8.2, 之前的版本内存管理不完善,在低端机上使用一段时间容易Crash.

    • 主要步骤:
    1. 进入目录
      cd /Users/xxx/StudioProjects/others/mediapipe-0.8.2
    2. 编译
    bazel build -c opt --fat_apk_cpu=arm64-v8a,armeabi-v7a mediapipe/examples/android/src/java/com/google/mediapipe/apps/aar_example:mp_multi_hand_tracking_082.aar --linkopt="-s"
    
    1. 拷贝aar
    cp bazel-bin/mediapipe/examples/android/src/java/com/google/mediapipe/apps/aar_example/mp_multi_hand_tracking_082.aar.aar /Users/xxx/StudioProjects/others/mediapipe-0.8.2/mediapipe/examples/android/src/java/com/google/mediapipe/apps/aar_example/mp_multi_hand_tracking_082.aar.aar 
    
    1. 生成binarypb文件
      bazel build -c opt //mediapipe/graphs/hand_tracking:hand_tracking_mobile_gpu_binary_graph
    2. 拷贝binarypb文件
    cp bazel-bin/mediapipe/graphs/hand_tracking/hand_tracking_mobile_gpu.binarypb /Users/xxx/Desktop/hand_tracking_mobile_gpu.binarypb
    
    1. 拷贝其他文件
      参考
      mediapipe-0.8.2/mediapipe/examples/android/src/java/com/google/mediapipe/apps/handtrackinggpu/BUILD
      里的assets清单,拷贝
    "//mediapipe/graphs/hand_tracking:hand_tracking_mobile_gpu.binarypb",
    "//mediapipe/modules/hand_landmark:handedness.txt",
    "//mediapipe/modules/hand_landmark:hand_landmark.tflite",
    "//mediapipe/modules/palm_detection:palm_detection.tflite",
    

    到asset文件夹

    1. 配置Manifest
           <meta-data android:name="cameraFacingFront" android:value="true"/>
           <meta-data android:name="binaryGraphName" android:value="hand_tracking_mobile_gpu.binarypb"/>
           <meta-data android:name="inputVideoStreamName" android:value="input_video"/>
           <meta-data android:name="outputVideoStreamName" android:value="output_video"/>
           <meta-data android:name="flipFramesVertically" android:value="true"/>
    
    1. 完整Demo下载地址
      我在索尼手机上测试此Demo,发现启动会黑屏,但点击home键后返回就好了。

    Tip:
    在线看模型的网址:https://netron.app/

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