ios - Vision Kit - 提取字典中的图像数据 - iOS

Question

我已经使用 Vision Kit 框架扫描了图像，并且能够提取字符串中的数据，但我希望它在键值对中，例如字典（ [String: Any] ）。

private var ocrRequest = VNRecognizeTextRequest(completionHandler: nil)

ocrRequest = VNRecognizeTextRequest { (request, error) in
guard let observations = request.results as? [VNRecognizedTextObservation] else { return }

var ocrText = ""

for observation in observations {
    
    guard let topCandidate = observation.topCandidates(1).first else { return }
    ocrText += topCandidate.string + "\n"
}


DispatchQueue.main.async {
    self.ocrTextView.text = ocrText
    self.scanButton.isEnabled = true
}
}

观察字符串的输出：

East Repair Inc.
Invoice #
US-001
Invoice Date
11/02/2019
P.O.#
2312/2019
Due Date
26/02/2019

我需要一个像这样的输出：

{
  "marchantName": "East Repair Inc.",
  "invoiceNumber": "US-001",
  "invoiceDate": "11/02/2019"
   .
   .
   .
}