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How to Improve IR LED Population Counter Accuracy for Groups or Children Detection?

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Best answers LABEL_AI_GENERATED

How can I improve an infrared LED people counter so it counts children, groups, and people walking side by side more accurately?

A simple two-column infrared counter will not reliably separate a mother carrying a baby, people walking side by side, or other close-together bodies, so for a final-year project the practical option is often to accept those limitations, document them, and explain how they could be addressed in a more advanced system [#21663303] A more sophisticated solution would use a CCTV camera with computer image analysis, but that would require complex hardware and software [#21663303] Another idea is to add diagonal beams, for example at about 45 degrees, alongside the orthogonal beams so the system gets more information about the size and shape of whatever passes through [#21663312] It may also help to add a row of beams in the same plane and then test the beam-breaking patterns with real foot traffic to see which combinations distinguish single people from groups [#21663312] If you can gather statistics on how often the tricky cases occur, you could also apply a rough correction factor, but that is only a fudge factor rather than a true fix [#21663308]
AI summary based on the discussion. May contain errors.
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  • Need multi-beam sensing to count groups accurately

    #1 21663302
    George James
    Anonymous  
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  • Suggesting project scope limits for crowd-counting errors

    #2 21663303
    Frank Bushnell
    Anonymous  
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  • #3 21663304
    George James
    Anonymous  
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  • Suggesting IR image strength to flag suspect readings

    #4 21663305
    Peter Owens
    Anonymous  
  • #5 21663306
    Frank Bushnell
    Anonymous  
  • #6 21663307
    Steve Lawson
    Anonymous  
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  • #7 21663308
    Bob Loy
    Anonymous  
  • #8 21663309
    George James
    Anonymous  
  • #9 21663310
    Steve Lawson
    Anonymous  
  • #10 21663311
    George James
    Anonymous  
  • Suggesting angled beams and pattern learning

    #11 21663312
    Steve Lawson
    Anonymous  

Topic summary

LABEL_AI_GENERATED
The discussion addresses improving the accuracy of an IR LED-based population counter designed to detect people entering or exiting by monitoring the sequence of beam interruptions. A key challenge is accurately counting groups or individuals carrying infants, as the current setup registers them as a single person. Suggestions include acknowledging the limitations of simple IR beam systems for complex scenarios like side-by-side walkers or people carrying children, and documenting these constraints in the project report. More advanced solutions involve integrating CCTV cameras with image processing software, though this adds significant complexity. Alternative hardware enhancements proposed include adding diagonal IR beams at angles (e.g., 45 degrees) alongside orthogonal beams to better differentiate between single individuals and groups or objects like strollers. Measuring IR signal strength to detect anomalies or suspect readings and incorporating mechanical elements like turnstiles to aid separation were also discussed. Statistical adjustments (fudge factors) based on the frequency of special cases were suggested to improve count accuracy. Overall, the consensus is to balance project complexity with achievable goals, possibly using multi-angle IR beam arrays and acknowledging inherent limitations in the final design.
AI summary based on the discussion. May contain errors.
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