Retrieving image from HikVision device

[sumanta]

Hello,

I am using the following HikVision device DS-K1T320EWX.
I am trying to retrieve the images that is stored on the device.

When I run POST /ISAPI/Intelligent/FDLib/FDSearch?format=json and it retruns the

I get the following output.

Is modelData the actual image that is stored inside?
If it is not the actual image, how do we retrieve the image corresponding to the modelData ?
My understanding is modelData is the feature vector for doing matching.

{
"statusCode": 1,
"statusString": "OK",
"subStatusCode": "ok",
"responseStatusStrg": "OK",
"numOfMatches": 1,
"totalMatches": 1,
"MatchList": [{
"FPID": "2",
"modelData": "RlI1MDIzMDYBAAAAAAAAAMTxKw0jzZ/8CDX/jRP/uaS+QabJw/osNOPdyy/yIsgfEAzyVPjt1iIUTgDUGQQg3LsbBw08Et8QBkEath6vAgfJLPkFzAv7Btrz5iBB8+1AAdMhzuLeJxrp3A31oSXfph365fjyMTG98QsYCtrh4gFCCxrqXV0Z/vctEFPYD++oC7DxFvMG9wX81xXZ0DjYK8UAAsw2OCg730dNHQQ42u9r2qsJyxL83ckaCZ7xDjHWnC9Y2C/08h3G1VU4Dl0R6SXuBK3dB0kIxR8WMSD6GPzzPx/sJtYbEak9i9Mv5dPLCFTDtBrq7P8H78Tq4+yzH98sE+ApE84M/Le2zxj698Y="
}]
}

I have tried the following APIs and failed.
1. GET /ISAPI/Intelligent/FDLib/1/faceData?format=json
2. GET /ISAPI/Intelligent/FDLib/1/picture/2