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Record W4413887432 · doi:10.1109/les.2025.3604285

Low-Power Face Recognition Using Joint Optical and Electronic Deep Neural Networks

2025· article· en· W4413887432 on OpenAlex

Why this work is in the frame

A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.

affAt least one author lists a Canadian institution in the pinned OpenAlex snapshot.
fundA Canadian funder is recorded on the work.

Bibliographic record

VenueIEEE Embedded Systems Letters · 2025
Typearticle
Languageen
FieldComputer Science
TopicFace and Expression Recognition
Canadian institutionsMcGill University
FundersNatural Sciences and Engineering Research Council of Canada
KeywordsComputer scienceJoint (building)Facial recognition systemArtificial intelligenceFace (sociological concept)Artificial neural networkPower (physics)Pattern recognition (psychology)Speech recognitionComputer vision

Abstract

fetched live from OpenAlex

Power and energy constraints limit the implementation of deep face recognition algorithms on edge devices. To address this issue, we propose an electro-optic hybrid system, with an always-on optical neural network that continuously monitors faces in a given environment and activates deep face recognition when a face is detected. We adapt the system for a scenario similar to a smart door lock application, involving center-aligned, randomly appearing faces. Tested on the Labeled Faces in the Wild dataset, the proposed system achieves 95.8% accuracy with 16 features extracted from face images by principal components analysis and enables a remarkable 33.2% reduction in power usage compared to the same neural network on digital processors.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

Full frame distilled prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Simulation or modeling · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: none
Teacher disagreement score0.749
Threshold uncertainty score0.820

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0000.001
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0000.000

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.016
GPT teacher head0.237
Teacher spread0.222 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it