// 将CIDetectorAccuracyHigh改为CIDetectorAccuracyLow
let options: [String: Any] = [CIDetectorAccuracy: CIDetectorAccuracyLow]
let detector = CIDetector(ofType: CIDetectorTypeFace, context: nil, options: options)

// 在处理前缩小图像尺寸
func scaleImage(_ image: CIImage, toWidth width: CGFloat) -> CIImage {
    let scale = width / image.extent.width
    return image.transformed(by: CGAffineTransform(scaleX: scale, y: scale))
}

// 使用autoreleasepool包裹检测代码
autoreleasepool {
    let features = detector?.features(in: image)
    // 处理检测结果
}

// 在后台队列执行检测
DispatchQueue.global(qos: .userInitiated).async {
    let features = detector?.features(in: image)
    DispatchQueue.main.async {
        // 更新UI
    }
}

do {
    let detector = try CIDetector(ofType: CIDetectorTypeFace, context: nil, options: options)
    let features = detector.features(in: image)
    // 处理结果
} catch {
    print("CIDetector初始化失败: \(error)")
    // 回退到低精度模式或其他处理方式
}