Questions tagged [facial-recognition]

A facial recognition system is a computer application capable of identifying or verifying a person from a digital image or a video frame from a video source.

Filter by
Sorted by
Tagged with
2 votes
1 answer
28 views

How to tackle the human error made in labeling datasets for classification tasks like facial expression recognition?

I am working on the Facial Expression Recognition Task. One of the most challenging tasks that I faced was human error in labeling the datasets (ex: let's say FER2013). Are there anyways to Handle ...
user avatar
0 votes
0 answers
127 views

Light weight super resolution model for face detection and verification

I am looking for light weight (embedded) model for face super resolution. Despite detecting all faces in images taken from an indoor environment, I have a problem verifying tiny faces (the embedding ...
user avatar
  • 1
0 votes
0 answers
17 views

How many years must pass before an old portrait photo of someone becomes unusable for facial recognition?

Lets say you want to find a certain person in a photo database using facial recognition. You have only one portrait photo in your possession to match the photos in the database against. If the ...
user avatar
  • 123
0 votes
0 answers
31 views

How can I calculate and draw an average AUC?

I am working on a face verification problem, for 100 persons. I need to calculate the verification performance. The input to the Matlab function is the similarity scores and true labels, and the ...
user avatar
  • 105
0 votes
0 answers
41 views

How to improve accuracy of CNN used for facial micro-expression analysis

From the paper (1) Facial expression analysis using CNN, the results using CNN show a 65% and 62% accuracy respectively, for emotion classification and state of mind identification. Proposed Method: ...
user avatar
1 vote
1 answer
79 views

What is the best open source python repo for facial recognition? [closed]

I am looking for best open source python repo for facial recognition. Best if it uses tensorflow backend. I know you can train images to recognize. Yolo can be used if trained on face. To name the ...
user avatar
1 vote
0 answers
21 views

Is it possible to create a simple face-tracking app that can monitor how much time one spends at their desk?

Context: I'm an experienced programmer with a graduate education in AI and previous CUDA programming experience. I'm versed in Machine Learning but am out of the loop -- I've not used any of the ...
user avatar
  • 121
2 votes
2 answers
181 views

What is the minimum video resolution I need to identify anyone with facial recognition?

I am currently working on a small project where I am trying to automate some stuff at home. I am building a model capable of identifying my face with OpenCV. This will be a live feed. I am making the ...
user avatar
1 vote
0 answers
32 views

Under what circumstances is a fully connected layer similar to PCA?

I am reading this paper on image retrieval where the goal is to train a network that produces highly discriminative descriptors (aka embeddings) for input images. If you are familiar with facial ...
user avatar
0 votes
0 answers
30 views

Why is my siamese network learning very well in e.g. 1 out of every 5 runs?

Why is my siamese network learning very well in e.g. 1 out of every 5 runs? The rest of the time it's not learning and maintains an accuracy of 0.5. Any explanations? Is the contrastive loss taken in ...
user avatar
  • 111
3 votes
1 answer
112 views

Why are the landmark retrieval and facial recognition literature so divergent?

Context and detail I've been working on a particular image retrieval problem and I've found two popular threads in the literature: Image retrieval (usually benchmarked with landmark retrieval datasets)...
user avatar
3 votes
2 answers
327 views

Is it possible to do face recognition with just the eyes?

Assuming the input photo is focused on a person's face, if the person is wearing a surgical mask, most face recognition software fail to identify the subject's face. Most facial landmark models are ...
user avatar
  • 31
1 vote
0 answers
32 views

How do gradients are flown back into the Siamese network when branching is done?

I am curious about the working of a Siamese network. So, let us suppose I am using a triplet loss for my network and I have instantiated single CNN 3 times and there are 3 inputs to the network. So, ...
user avatar
  • 233
1 vote
0 answers
50 views

What is the formal terminology for emotion recognition AI?

I'm researching the use of emotion recognition in Intelligent Tutoring Systems and trying to more effectively find and formally reference materials. My question is whether this is the most formal ...
user avatar
  • 111
2 votes
2 answers
1k views

How to identify if 2 faces contain the same person?

I have got numerous frames and I've detected all the faces in all the frames using Retinaface. However I need to track the faces of people over frames. For this purpose, I assumed I could try finding ...
user avatar
  • 121
0 votes
0 answers
32 views

How to determine when the image is steady enough in a video sequence to take photos?

How do I calculate the points in a video sequence where the images are steady enough for a photo. For example, I want to take maybe 20 photos for a facial recognition dataset. Instead of asking the ...
user avatar
3 votes
1 answer
54 views

Does anyone know of a model for comparing the eyes of people in two images to see if they match?

There’s a lot of talk of undercover cops intentionally starting violence in otherwise peaceful protests. The evidence, primarily, are images like this. https://images.app.goo.gl/4n3o2EXwFzMQfsKq6 ...
user avatar
2 votes
0 answers
27 views

Is there any published research on the information-carrying capacity of the human face?

Is there any published research on the information-carrying capacity of the human face? Here I mean "how much information can be conveyed via facial expressions & micro-expressions". This is a ...
user avatar
  • 6,067
0 votes
1 answer
87 views

What is 3D face recognition? and how we can check liveness of a face image?

Actually what is mean by 3D face recognition? In normal cases we are extracting face encoding s from a 2D image,right? Is 3D face recognition is used for liveness detection? how its possible?
user avatar
1 vote
0 answers
31 views

Face recognition model loss not decreasing

I wrote a script to do train a Siamese Network style model for face recognition on LFW dataset but the training loss doesnt decrease at all. Probably there's a bug in my implementation. Could you ...
user avatar
1 vote
0 answers
33 views

State of the art in voice recognition

In the media there's lot of talk about face recognition, mainly with respect to identifying faces (= assigning to persons). Less attention is paid to the recognition of facially expressed emotions but ...
user avatar
1 vote
0 answers
34 views

Finding unique faces in a video

I am trying to find unique (distinct) faces in multiple videos files. What is the best way to do that?
user avatar
  • 11
1 vote
1 answer
165 views

Lego minifigure facial recognition: where to start? [closed]

I'm interested in starting a project that will identify the face of a Lego mini figure from a digital photo. My goal is to eventually map the expression of a person's face to the Lego mini figure. I ...
user avatar
2 votes
1 answer
269 views

Which AI methods are most appropriate for login face recognition?

I want to make a face authentication application. I need to approve the face during the login based on whether the registered face and the login face match. Which are the possible appropriate AI ...
user avatar
1 vote
0 answers
68 views

How to extract face details from a image

I am trying to make a face login application that authenticates the user when matching the registered face and the given face. currently, the issue is I cant extract the face descriptions from the ...
user avatar
1 vote
1 answer
2k views

How Euclidean distance algorithm calculate two different face images are match or not match in face recognition? [closed]

I am trying to make a face login application. face comparison algorithm is using Euclidean distance to calculate two different face images that are the same or not the same. can anyone help me with ...
user avatar
1 vote
1 answer
155 views

How is the percentage or the probablity calculated using Loss function in Facenet Model?

This question is related to What is the formula used to calculate the accuracy in the FaceNet model? . I know how loss is calculated in the FaceNet model , but how the loss function is used to ...
user avatar
2 votes
1 answer
923 views

Detailed explaination of Facenet Model for face recogniton?

Can some one explain how Facenet model works in detail and simple words .
user avatar
6 votes
1 answer
272 views

What is the formula used to calculate the loss in the FaceNet model?

The FaceNet model returns the loss of the predictions and ground-truth classes. How is this loss calculated?
user avatar
1 vote
1 answer
110 views

What is the current state of the art in animal facial recognition?

As far as I can tell, most work on facial recognition has been done in relation to human faces. Has any significant work been done for dogs, and are there any special challenges that would make it ...
user avatar
  • 111
1 vote
0 answers
391 views

Threshold selection for Siamese network hyper-parameter tuning

I'm interested in modeling a Siamese network for facial verification. I've already written a simple working model that inputs feature vectors generated from two CNNs with shared weights then outputs a ...
user avatar
  • 11
2 votes
0 answers
35 views

How to implement fisherface algorithm and how much time will it take?

I found on the web that fisherface is the best algorithm for face detection. Before investing deeply into it, I just want to know how hard is it to implement it and how much time will it take. I am ...
user avatar
10 votes
0 answers
286 views

Extending FaceNet’s triplet loss to object recognition

FaceNet uses a novel loss metric (triplet loss) to train a model to output embeddings (128-D from the paper), such that any two faces of the same identity will have a small Euclidean distance, and ...
user avatar
1 vote
0 answers
21 views

Are there some formulae in facial recognition that are indicators of close kinship?

I noticed what I considered a close resemblance of a woman B to another woman A which led to a close relative A labelled C, who B bore an even stronger resemblance to than she did to A. However I ...
user avatar
  • 111
2 votes
1 answer
424 views

How does ARKit's Facial Tracking work?

iPhone X allows you to look at the TrueDepth camera and reports 52 facial blendshapes like how much your eye is opened, how much your jaw is opened, etc. If I want to do something similar with other ...
user avatar
  • 315
1 vote
2 answers
664 views

How long it takes to train face recognition deep neural network? (rough estimation)

If I use a desktop PC with a GPU, how long it might take to train face recognition deep neural network on let's say dataset of 2.6 million images and 2600 identities? I guess it should depend on ...
user avatar
  • 113
1 vote
1 answer
129 views

How to identify whether images contain driver's licenses or ID cards

Suppose I have a lot of scans of hardcopy documents, in the form of jpegs. Some of them are potentially scans of driver's licenses or identification cards. I wonder what would be a good way to ...
user avatar
  • 121
0 votes
1 answer
73 views

Facial Recognition + Database + Compare & Identify - is it complicated? [closed]

The last week I've been looking for freelancers who are able to do this project for me but they weren't that experienced in it, so I would like to know whether my idea is complicated or is it their ...
user avatar
1 vote
0 answers
76 views

Machine learning approach to facial recognition

First of all I'm very new to the field. Maybe my question is a bit too naive or even trivial... I'm currently trying to understand how can I go about recognizing different faces. Here is what I ...
user avatar
1 vote
1 answer
466 views

How can we use data augmentation for creating data set for face recognition and will the inverted faces on augmented images detected?

I saw when browsing we can use data augmentation for creating a dataset for face recognition. The augmented images may include inverted, tilted or distorted faces. Do the model detect the face from ...
user avatar
  • 51
2 votes
1 answer
53 views

Can I recognize the faces of people around the world?

I created a system where every moment takes photos of the face of who is in the vision of the camera. Initially I took 500 photos of me, to recognize its creator. This takes approximately 20 seconds. ...
user avatar
1 vote
0 answers
63 views

Will commercialisation and widespread use of A.I in security and surveillance and other household products threaten free will or endanger privacy?

Everything from facial recognition to the google home is coming equiped with A.I and it is being widely used , If autonomously connected to the internet , will A.I pose a threat to privacy or will it ...
user avatar
3 votes
2 answers
164 views

Facial recognition and classifying unknowns with neural networks

As far as I understand, neural networks aren't good at classifying 'unknowns', i.e. objects that do not belong to a learned class. But how do face detection/recognition approaches usually determine ...
user avatar
  • 227
1 vote
0 answers
51 views

How to calculate Adaptive gradient?

In the FaceNet paper there mentions an gradient algorithm called 'AdaGrad'(Adaptive Gradient) referenced to this paper which has apparently been used to calculate the gradient of the Triplet Loss ...
user avatar
4 votes
2 answers
482 views

Viola Jones Algorithm

Can Viola Jones algorithm be used to detect the facial emotion. Actually it was used in creating harr-cascade file for object and facial detection, but what confused me is whether it can be used to ...
user avatar
1 vote
2 answers
73 views

Searching an AI to recognize and locate persons in a factory

TLDR : Is there an AI available that can recognize employees in a factory and tell when they entered and left pre-defined areas? I work in a factory where we gather cycle time data from various ...
user avatar
4 votes
1 answer
195 views

How to identify the face of a certain customer in a grocery store?

How would you solve the problem of identifying certain customer in a grocery store? Suppose our client is already signed-up on our website with an unique ID given to him. To come in to the store, ...
user avatar
6 votes
2 answers
172 views

Is algorithmic bias due to the training dataset used?

I recently read about algorithmic bias in facial recognition. Is algorithmic bias due to the training dataset used, or is it due to something else?
user avatar
5 votes
1 answer
211 views

Is it possible to fool a facial recognition algorithm?

Assuming we're dealing with an artificial neural network (e.g. a ConvNet), which was trained by a large dataset of human faces. Are there any known issues or challenges where facial recognition would ...
user avatar
  • 10k