Wiki » History » Version 32
Anderson PHILLIP, 10/18/2025 02:32 AM
| 1 | 22 | Anderson PHILLIP | h1(#Top). Multi-Projector System — Project Wiki |
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| 3 | 1 | Igor Goncharenko Admin | |
| 4 | 19 | Anderson PHILLIP | h2. Overview |
| 5 | 29 | Anderson PHILLIP | |
| 6 | 25 | Anderson PHILLIP | Our goal is to build a two‑projector system that displays seamless still images on a flat screen, where the projected areas overlap and must be blended. Implementation is in Python (OpenCV). Prior to implementation, we document the problem and a viable solution approach. |
| 7 | 1 | Igor Goncharenko Admin | |
| 8 | 29 | Anderson PHILLIP | Problem background (why blending matters) |
| 9 | 28 | Anderson PHILLIP | Overlapped regions become over‑illuminated; alpha‑blending with proper masks evens illumination across seams. (“What is [[Alpha‑blending]]?”) |
| 10 | 19 | Anderson PHILLIP | |
| 11 | 32 | Anderson PHILLIP | h2(#scope). Scope & assumptions |
| 12 | 19 | Anderson PHILLIP | * Start from a *planar* screen with **two** projectors; optical axes *perpendicular* to the screen. |
| 13 | * Work with **still images** first (not video). |
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| 14 | * Expected overlapped area is approximately rectangular; target a *linear* drop of mask intensity from 1→0 across the overlap. |
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| 15 | * Use Python + OpenCV; iterate from simple to refined. |
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| 16 | (From project brief and simplified requirements.) |
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| 18 | 32 | Anderson PHILLIP | h2(#objectives). Objectives |
| 19 | 19 | Anderson PHILLIP | * Describe the problem and identify a potential solution before coding. |
| 20 | * Apply geometric reasoning (lines/planes in 3D; ray‑plane/ray‑cylinder intersections) as needed. |
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| 21 | * Prototype masking that yields smooth, artifact‑free blending. |
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| 22 | (From “Objective”, “Skills required”, and problem formulation.) |
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| 24 | h2(#Key-Concepts). Key concepts & references |
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| 25 | * [[Alpha‑blending]] — concept and examples. |
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| 26 | * Forward (screen→projector) and inverse (projector→screen) ray tracing for overlap detection and mask generation. |
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| 27 | * “Smooth” masks prevent scratches along mask boundaries. |
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| 30 | 20 | Anderson PHILLIP | h2(#Team). Team & roles |
| 31 | 24 | Anderson PHILLIP | |_. Roles |_. Members | |
| 32 | 23 | Anderson PHILLIP | | Advisor | [[Members/Great-Gilbert-Soco|Great Gilbert Soco]] | |
| 33 | 27 | Anderson PHILLIP | | PL, Project Leader | [[Members/Koki-Hamamura|Koki Hamamura]] | |
| 34 | | PM, Project Manager | [[Members/Noah-Larson|Noah Larson]] | |
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| 35 | | Redmine – supporter of PM | [[Members/Nonoka-Ohama|Nonoka Ohama]] | |
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| 36 | | Developers | [[Members/Jiajun-Deng|Deng]], [[Members/Great-Gilbert-Soco|Great Gilbert Soco]] | |
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| 37 | | Doxygen Leader | [[Members/Amirul-Haziq-Bin-Airol-Hairrie|Haziq Bin Airol Hairrie Amirul]] | |
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| 38 | | Doxygen, commenters | [[Members/Jordan-Keiwein-Lay|Jordan Keiwein Lay]], [[Members/Hnin-Ei-Shwe-Yee|Hnin Ei Shwe Yee]] | |
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| 39 | | Wiki Leader | [[Members/Phillip-Anderson|Phillip Anderson]] | |
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| 40 | | Wiki Developers | [[Members/Wing Sum Tang|Wing Sum Tang]], [[Members/Sota-Yatsugi|Sota Yatsugi]] | |
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| 41 | 30 | Anderson PHILLIP | | Jira Research Team | [[Members/Zhi-Jie-Yew|Zhi Jie Yew]], [[Members/Phillip-Anderson|Phillip Anderson]] | |
| 42 | 19 | Anderson PHILLIP | |
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| 45 | 1 | Igor Goncharenko Admin | h2(#Links). Project links |
| 46 | 32 | Anderson PHILLIP | * Requirements & assumptions: this page, sections [[#scope|Scope & Assumptions]] and [[#objectives|Objectives]]. |
| 47 | 29 | Anderson PHILLIP | * Design notes & diagrams: |
| 48 | * Experiments log & photos: |
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| 49 | 26 | Anderson PHILLIP | * Code repo / file list: |
| 50 | 21 | Anderson PHILLIP | |
| 51 | p=. _Back to top:_ [[#Top|↑]] |