Is there an upper limit in face templates registration

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Is there an upper limit in face templates registration

Postby cw-gsdc » Jan 26, 2018 03:59

Hi

I am implementing face identification using HNBiometricEngine.
The NBiometricEngineList API can"t get "ValueCount" greater than 100.
Is Maximum registration number of face templates limited up to 100?

Thanks and regards,
cw-gsdc
 
Posts: 2
Joined: Jun 23, 2017 08:29

Re: Is there an upper limit in face templates registration

Postby MartynasV » Jan 26, 2018 10:37

cw-gsdc wrote:Hi

I am implementing face identification using HNBiometricEngine.
The NBiometricEngineList API can"t get "ValueCount" greater than 100.
Is Maximum registration number of face templates limited up to 100?

Thanks and regards,

Hello,

NBiometricEngineList() function limits the output to 100 by default(there is no limitation on how many subjects can be enrolled to database). If you need to get the list of more enrolled people ids in the NBiometricClient, then this property should be set with required amount:

Code: Select all
NInt yourCountValue = 1000; // Count of how many subjectIds will be returned.
result = NObjectSetPropertyP(hBiometricClient, N_T("MaximalListResults"), N_TYPE_OF(NInt32), naNone, &yourCountValue, sizeof(yourCountValue), 1, NTrue);


During List() function execution the list of NSubjects will be created as output. This will lead to big memory usage. This is the reason why it is limited to 100 by default.
Martynas V
Neurotechnology
MartynasV
Neurotechnology
 
Posts: 370
Joined: Feb 27, 2015 11:24
Location: Vilnius, Lithuania

Re: Is there an upper limit in face templates registration

Postby cw-gsdc » Jan 29, 2018 05:57

Thank you for answering my question.
The problem is solved.

Best regards.
cw-gsdc
 
Posts: 2
Joined: Jun 23, 2017 08:29


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