OpenBR implementation questions -

[Daryl Jones]

I'm working on a project to identify a person in a specimen jpg photo by comparing it to a gallery of about 500,000 images.

My photo collection is in a Microsoft SQL database and I prefer to not keep photos as individual files.

Current Design:

A batch process codes each photo shortly after it is added to the database using this command:

-->    br -algorithm FaceRecognition -enroll /tmp/image.jpg '/tmp/srims_gal.csv'

    

The output of this command is stored in the database record for the given photo.  Typical metadata looks like this:

SSFXX-26-1.jpg,235,325,373,333,145924,false,0,116,190,382,382,373,333,235,325

    

Another batch process builds a CSV gallery.  Is this a valid gallery? It looks like this:

File,Affine_0_X,Affine_0_Y,Affine_1_X,Affine_1_Y,Confidence,FTE,FrameNumber,FrontalFace_X,FrontalFace_Y,FrontalFace_Width,FrontalFace_Height,StasmLeftEye_X,StasmLeftEye_Y,StasmRightEye_X,StasmRightEye_Y

SSFXX-26-1.jpg,235,325,373,333,145924,false,0,116,190,382,382,373,333,235,325

SSFXX-76-1.jpg,107,125,169,144,26569,false,0,54,66,163,163,169,144,107,125

SSFXX-103-2.jpg,555,577,790,585,363609,false,0,352,387,603,603,790,585,555,577

SSFXX-103-3.jpg,343,157,751,212,-3.40282347e+38,false,0,0,0,1024,768,751,212,343,157

I'm attempting to find matches for the specimen photo with the command.

-> br -algorithm FaceRecognition -compare ssfxx_gallery.csv specimen.jpg

This results in errors because the .jpg photos exist only in the database, which br cannot access directly.

Questions and Issues:

1) How can I have OpenBR match a specimen photo to metadata in a CSV gallery file, without needing to direct access to the .jpg file.

2) Is my overall architecture practical?  (I'm working with C# on Mono.)

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