百度人脸识别及 OCR 集成

1. 人脸离线采集集成

1.1 开发文档

开发文档地址: 人脸离线采集集成

1.2 遇到的问题

1.2.1 按文档操作到步骤 2.3

错误信息如下:

错误信息：dyld: Library not loaded: @rpath/IDLFaceSDK.framework/IDLFaceSDK
Referenced from: /private/var/containers/Bundle/Application/5B25B8BA-34B3-4AC8-8DFA-E6EC3ED6913C/沈阳智慧医保.app/沈阳智慧医保
Reason: image not found
dyld: launch, loading dependent libraries
DYLD_LIBRARY_PATH=/usr/lib/system/introspection
DYLD_INSERT_LIBRARIES=/Developer/usr/lib/libBacktraceRecording.dylib:/Developer/usr/lib/libMainThreadChecker.dylib:/Developer/Library/PrivateFrameworks/GPUTools.framework/libglInterpose.dylib:/usr/lib/libMTLCapture.dylib:/Developer/Library/PrivateFrameworks/DTDDISupport.framework/libViewDebuggerSupport.dylib
Message from debugger: Terminated due to signal 6

报错原因是：IDLFaceSDK 未被 load

解决办法：

step 1: Build Phases 中 + New Copy Files Phase

step 2: Copy Files 中，Destination 选择 Frameworks, + IDLFaceSDK.framework 即可。

1.2.2 按文档操作到步骤 3.4

百度提供的 demo 中，人脸采集后的数据位于 BDFaceLivenessViewController 的 - (void)faceProcesss:(UIImage *)image 中。 在活体动作设置时，numberOfLiveness 与 liveActionArray 的数量应该是一致的。

注意：并不是我理解的动作全部开启，numberOfLiveness 设置为 1，就会每次运行时，随机选择一种动作进行活体验证。

项目中实现如下，每次随机显示一种动作来进行活体验证

// 设置活体检测动作
NSArray *livenesswithList = @[
    @(FaceLivenessActionTypeLiveEye),
    @(FaceLivenessActionTypeLiveMouth),
    @(FaceLivenessActionTypeLiveYawRight),
    @(FaceLivenessActionTypeLiveYawLeft),
    @(FaceLivenessActionTypeLivePitchUp),
    @(FaceLivenessActionTypeLivePitchDown),
    ];
    
int x = arc4random() % 6;
    
[BDFaceLivingConfigModel.sharedInstance.liveActionArray addObject:livenesswithList[x]];
BDFaceLivingConfigModel.sharedInstance.isByOrder = NO;
BDFaceLivingConfigModel.sharedInstance.numOfLiveness = 1;

2. OCR 集成

2.1 遇到的问题

2.1.1 集成 sdk 后保错，无法运行

保错信息如下：

/aip-ocr-ios-sdk-3/AipOcrDemo/AipOcrDemo.xcodeproj Building for iOS Simulator, but the linked and embedded framework 'IdcardQuality.framework' was built for iOS.
或
build for ios but the linked and embedded framework was built for ios + ios simulator

解决办法参考 博客

移除x86_64, i386 ，用真机调试就好了，没必要纠结模拟器，相关命令如下：

cd lib
# 使用lipo -info 可以查看包含的架构
lipo -info AipBase.framework/AipBase # Architectures in the fat file: AipBase are: i386 x86_64 armv7 armv7s arm64
# 移除x86_64, i386
lipo -remove x86_64 AipBase.framework/AipBase -o AipBase.framework/AipBase
lipo -remove i386 AipBase.framework/AipBase -o AipBase.framework/AipBase
lipo -remove x86_64 AipOcrSdk.framework/AipOcrSdk -o AipOcrSdk.framework/AipOcrSdk
lipo -remove i386 AipOcrSdk.framework/AipOcrSdk -o AipOcrSdk.framework/AipOcrSdk
# 再次查看
lipo -info AipBase.framework/AipBase # Architectures in the fat file: AipBase are: armv7 armv7s arm64