PL450182A1 - Method of automatic geometric calibration and shaping of luminance distribution and system for using this method - Google Patents

Method of automatic geometric calibration and shaping of luminance distribution and system for using this method

Info

Publication number
PL450182A1
PL450182A1 PL450182A PL45018224A PL450182A1 PL 450182 A1 PL450182 A1 PL 450182A1 PL 450182 A PL450182 A PL 450182A PL 45018224 A PL45018224 A PL 45018224A PL 450182 A1 PL450182 A1 PL 450182A1
Authority
PL
Poland
Prior art keywords
luminance distribution
luminance
real object
recording
voxels
Prior art date
Application number
PL450182A
Other languages
Polish (pl)
Inventor
Rafał Krupiński
Original Assignee
Politechnika Warszawska
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Politechnika Warszawska filed Critical Politechnika Warszawska
Priority to PL450182A priority Critical patent/PL450182A1/en
Publication of PL450182A1 publication Critical patent/PL450182A1/en

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
    • H05B47/10—Controlling the light source
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V14/00—Controlling the distribution of the light emitted by adjustment of elements
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T19/00—Manipulating 3D models or images for computer graphics

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Computer Graphics (AREA)
  • Computer Hardware Design (AREA)
  • Software Systems (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Image Processing (AREA)

Abstract

Przedmiotem zgłoszenia jest sposób automatycznej geometrycznej kalibracji i kształtowania rozkładu luminancji oraz układ do stosowania tego sposobu. Sposób polega na tym, że kamera skanująco-rejestrująca (C) wykonuje trójwymiarowy skan rzeczywistego obiektu (RO) w postaci trójwymiarowej chmury wokseli (3DW), następnie określa się pożądany rozkład luminancji, który realizuje się na rzeczywistym obiekcie (RO) przy użyciu plików brył fotometrycznych (PBF) opraw oświetleniowych, przy czym pliki brył fotometrycznych (PBF) zawierające dane fotometryczne (DF) wczytuje się do układu w położeniu X, Y, Z i ukierunkowaniu R względem trójwymiarowej chmury wokseli (3DW) reprezentującej geometrycznie rzeczywisty obiekt (RO), następnie oblicza się luminancję wokseli stanowiących rozkład luminancji na całym obiekcie trójwymiarowym, a tak powstały przestrzenny rozkład luminancji wokseli (L3DW) przekształca się w postać płaską rozkładu luminancji skorygowanego geometrycznie (LSG) dla położenia i kierunku świecenia projektora multimedialnego (P), który za pomocą projektora multimedialnego (P) wyświetlany jest na rzeczywistym obiekcie (RO), z kolei wyświetlany rozkład luminancji (L) poprzez kamerę skanująco-rejestrującą (C) poddawany jest analizie położenia każdego piksela obrazu z położeniem wokseli wchodzących w skład przestrzennego rozkładu luminancji wokseli (L3DW) widzianego z kierunku świecenia projektora multimedialnego (P). Układ, zawierający jednostkę rejestrująco—przetwarzającą z oprogramowaniem przystosowanym do przetwarzania danych fotometrycznych opraw oświetleniowych w odpowiadające im rozkłady luminancji na chmurze wokseli, połączoną z projektorem multimedialnym, wyświetlającym obraz rozkładu luminancji na rzeczywistym obiekcie, charakteryzuje się tym, że jednostka rejestrująco-przetwarzająca (JRP) jest połączona z kamerą skanująco-rejestrującą (C).The subject of the application is a method for automatic geometric calibration and shaping of luminance distribution and a system for using this method. The method consists in that the scanning and recording camera (C) performs a three-dimensional scan of a real object (RO) in the form of a three-dimensional voxel cloud (3DW), then the desired luminance distribution is determined, which is implemented on the real object (RO) using photometric solid files (PBF) of lighting fixtures, wherein the photometric solid files (PBF) containing photometric data (DF) are loaded into the system in the X, Y, Z position and orientation R relative to the three-dimensional voxel cloud (3DW) geometrically representing the real object (RO), then the luminance of the voxels constituting the luminance distribution on the entire three-dimensional object is calculated, and the spatial luminance distribution of the voxels (L3DW) thus obtained is transformed into a flat form of the geometrically corrected luminance distribution (LSG) for the position and direction of lighting of the multimedia projector (P), which is displayed on the real object (RO) by means of the multimedia projector (P), and in turn the luminance distribution (L) is displayed by the camera scanning and recording unit (C) is subjected to analysis of the position of each pixel of the image with the position of the voxels included in the spatial distribution of luminance of the voxels (L3DW) seen from the direction of light of the multimedia projector (P). The system, comprising a recording and processing unit with software adapted to process photometric data of lighting fixtures into corresponding luminance distributions on a voxel cloud, connected to a multimedia projector displaying an image of the luminance distribution on a real object, is characterized in that the recording and processing unit (JRP) is connected to the scanning and recording camera (C).

PL450182A 2024-10-31 2024-10-31 Method of automatic geometric calibration and shaping of luminance distribution and system for using this method PL450182A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL450182A PL450182A1 (en) 2024-10-31 2024-10-31 Method of automatic geometric calibration and shaping of luminance distribution and system for using this method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL450182A PL450182A1 (en) 2024-10-31 2024-10-31 Method of automatic geometric calibration and shaping of luminance distribution and system for using this method

Publications (1)

Publication Number Publication Date
PL450182A1 true PL450182A1 (en) 2025-05-26

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Family Applications (1)

Application Number Title Priority Date Filing Date
PL450182A PL450182A1 (en) 2024-10-31 2024-10-31 Method of automatic geometric calibration and shaping of luminance distribution and system for using this method

Country Status (1)

Country Link
PL (1) PL450182A1 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120268947A1 (en) * 2004-07-06 2012-10-25 Tseng-Lu Chien Projection device for variety of light device
US8734163B1 (en) * 2009-04-28 2014-05-27 Musco Corporation Apparatus, method, and system for on-site evaluation of illumination scheme using a mobile lighting evaluation system
US20200257831A1 (en) * 2019-02-13 2020-08-13 Eaton Intelligent Power Limited Led lighting simulation system
US11147134B2 (en) * 2015-11-17 2021-10-12 Telelumen, LLC Illumination content translation

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120268947A1 (en) * 2004-07-06 2012-10-25 Tseng-Lu Chien Projection device for variety of light device
US8734163B1 (en) * 2009-04-28 2014-05-27 Musco Corporation Apparatus, method, and system for on-site evaluation of illumination scheme using a mobile lighting evaluation system
US11147134B2 (en) * 2015-11-17 2021-10-12 Telelumen, LLC Illumination content translation
US20200257831A1 (en) * 2019-02-13 2020-08-13 Eaton Intelligent Power Limited Led lighting simulation system

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