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Machine vision and edge AI notes — optics, lighting, algorithms, edge inference

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  • Optics
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  • Edge AI (12)
  • Lighting Design (9)
  • Optics (22)
  • Vision Algorithm (23)

Recent posts

  • AOI Only Says “Defective” — How Vision Language Models Fill the Gap in Judgment Rationale 2026-09-17
  • There Are Defects That Vanish in Visible Light — Inspection Design Beyond the 1 μm Barrier in SWIR Imaging 2026-09-16
  • Catching 20 μm Sink Marks in High-Gloss Injection-Molded Parts with Phase Measuring Deflectometry (PMD) — The Last Gap Polarization Fusion Fills 2026-09-15
  • Where the μm Step Disappears: Measuring Both-Side Thickness Simultaneously with a Two-Channel Chromatic Confocal Controller 2026-09-10
  • Camera Interface Bandwidth Determines Resolution — From GigE Vision to CoaXPress 2.0 2026-09-09
  • 저노출·고노출·HDR 블렌딩 결과 세 프레임을 비교해 정반사 커넥터와 무광 레지스트의 디테일이 각각 보존되는 과정을 보여주는 개념도
    Optics,  Vision Algorithm

    When Specular and Matte Meet in One Frame: Reviving Contrast with HDR Multi-Exposure Fusion

    Noctvision / 2026-09-03 / 0 Comments

    When a specular connector and a matte resist surface share one FOV, a single exposure can't capture both. Here is how HDR multi-exposure fusion recovers contrast on mixed-reflectivity surfaces, and when cross-polarization is…

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  • 조명이 어두운 지하주차장 내부 — 화재감지 카메라가 대응해야 하는 저조도 환경 예시
    Edge AI

    Detection Time Cut 65%, False Alarms Down 80%: How to Read the Two Numbers Behind Edge Fire-Detection AI

    Noctvision / 2026-09-02 / 0 Comments

    A machine-vision read on an early-detection model for underground-garage EV fires running in real time on an edge device. Of the two headline figures, the one that matters more in the field is…

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  • 편광 필터 적용 전후 비교 — 오른쪽은 편광 필터로 반사가 제거된 모습
    Lighting Design,  Optics

    Specular Reflection Erases Defects: How Cross-Polarization Catches Missed Detections on Highly Reflective Surfaces

    Noctvision / 2026-09-02 / 0 Comments

    When a plated connector and a matte housing share a FOV, specular reflection saturates the highlight and buries defects. Here is how cross-polarization filtering physically blocks specular reflection, and when it is favorable…

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  • 텔레센트릭 렌즈 단면 예시 (Bi-telecentric lens) - 사진: Laserlicht, CC BY-SA 4.0, Wikimedia Commons
    Optics,  Vision Algorithm

    The Tug-of-War Between Distortion Correction and Depth of Field: How Telecentric Lenses Catch Micro-Defects Without Losing Them

    Noctvision / 2026-09-01 / 0 Comments

    Raise lens magnification to resolve a micro-defect and depth of field narrows; layer distortion on top and dimensional measurements start to drift. A look at how magnification, DOF, distortion, and reflectivity interact in…

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  • 머신비전 검사 셋업용 다채널 LED 링 라이트
    Lighting Design,  Vision Algorithm

    Software-Defined Lighting: One Head, Switching Between Dark-Field and Coaxial Illumination

    Noctvision / 2026-08-31 / 0 Comments

    When a single target mixes matte and high-gloss regions, a fixed lighting setup forces a compromise. Here is how a multi-channel Software-Defined Lighting head, backed by GigE Vision 3.0 and edge inference, switches…

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  • 다크필드 조명의 저각 입사·산란광 수집 원리를 보여주는 광학 경로 다이어그램
    Lighting Design,  Vision Algorithm

    Dark-Field Illumination and Edge AI Defect Classification: A New Baseline for Specular-Surface Inspection

    Noctvision / 2026-08-28 / 0 Comments

    The smoother a surface looks, the harder it can be to inspect: specular reflection either saturates the sensor or buries shallow defects in near-zero contrast. Here is how dark-field illumination and unsupervised edge…

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  • 클래식 자동차의 크롬 도금 와이어 스포크 휠과 타이어를 근접 촬영한 사진, 금속 차체의 정반사와 스포크의 세밀한 디테일이 보이는 모습
    Edge AI,  Lighting Design

    Automotive Part Appearance Inspection: Lighting Design Comes First

    Noctvision / 2026-08-27 / 0 Comments

    Automotive parts mix painted, chrome-plated, and molded surfaces with very different reflectivity on one line. Why lighting design matched to each material has to be settled before the AI algorithm can do its…

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  • 8포트 PoE 스위치 근접 사진, RJ45 포트와 SFP 업링크 슬롯이 보이는 산업용 랜카드 장비
    Optics

    Why the PoE Network Card Sets the Limit on Your Optical Setup in a Multi-Camera Inspection Line

    Noctvision / 2026-08-27 / 0 Comments

    Scale a PCB line from one camera to four or eight and the first bottleneck is cabling, not the lens. How a PoE network card's power and bandwidth budget has to be designed…

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  • 산업용 로봇 팔이 고속 생산라인에서 제품을 팔레타이징하는 공장 자동화 현장 사진
    Optics,  Vision Algorithm

    What Optical Design Needs to Not Miss Defects on a High-Speed Line

    Noctvision / 2026-08-27 / 0 Comments

    At dozens of parts per second, motion blur erases contrast before a slow shutter can catch a defect. Strobe illumination, trigger synchronization, and a WD-aware lens spec are what actually hold up under…

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  • PCB 위에서 핀셋으로 SMD 부품을 납땜하는 근접 사진, 초록색 회로기판과 정밀 인두 팁이 보이는 모습
    Vision Algorithm

    PCB and Semiconductor Surface Inspection: The 15–40µm Boundary the Human Eye Misses

    Noctvision / 2026-08-27 / 0 Comments

    Rising demand for machine vision is, at bottom, a sign that quality standards for defects the human eye can no longer catch are accelerating. How FOV, resolution, lighting, and WD all define each…

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Categories

  • Edge AI (12)
  • Lighting Design (9)
  • Optics (22)
  • Vision Algorithm (23)

Recent posts

  • AOI Only Says “Defective” — How Vision Language Models Fill the Gap in Judgment Rationale 2026-09-17
  • There Are Defects That Vanish in Visible Light — Inspection Design Beyond the 1 μm Barrier in SWIR Imaging 2026-09-16
  • Catching 20 μm Sink Marks in High-Gloss Injection-Molded Parts with Phase Measuring Deflectometry (PMD) — The Last Gap Polarization Fusion Fills 2026-09-15
  • Where the μm Step Disappears: Measuring Both-Side Thickness Simultaneously with a Two-Channel Chromatic Confocal Controller 2026-09-10
  • Camera Interface Bandwidth Determines Resolution — From GigE Vision to CoaXPress 2.0 2026-09-09
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