FR3116882B1 - Procédé de pilotage d’une source lumineuse pixélisée par interpolation de consignes - Google Patents

Procédé de pilotage d’une source lumineuse pixélisée par interpolation de consignes Download PDF

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Publication number
FR3116882B1
FR3116882B1 FR2012298A FR2012298A FR3116882B1 FR 3116882 B1 FR3116882 B1 FR 3116882B1 FR 2012298 A FR2012298 A FR 2012298A FR 2012298 A FR2012298 A FR 2012298A FR 3116882 B1 FR3116882 B1 FR 3116882B1
Authority
FR
France
Prior art keywords
interpolation
controlling
light source
instructions
pixelated light
Prior art date
Legal status (The legal status 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 status listed.)
Active
Application number
FR2012298A
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English (en)
Other versions
FR3116882A1 (fr
Inventor
Constantin Prat
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Valeo Vision SAS
Original Assignee
Valeo Vision SAS
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 Valeo Vision SAS filed Critical Valeo Vision SAS
Priority to FR2012298A priority Critical patent/FR3116882B1/fr
Publication of FR3116882A1 publication Critical patent/FR3116882A1/fr
Application granted granted Critical
Publication of FR3116882B1 publication Critical patent/FR3116882B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
    • B60Q1/02—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments
    • B60Q1/04—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights
    • B60Q1/14—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights having dimming means
    • B60Q1/1415—Dimming circuits
    • B60Q1/1423—Automatic dimming circuits, i.e. switching between high beam and low beam due to change of ambient light or light level in road traffic
    • B60Q1/143—Automatic dimming circuits, i.e. switching between high beam and low beam due to change of ambient light or light level in road traffic combined with another condition, e.g. using vehicle recognition from camera images or activation of wipers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/50—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
    • H04N19/59—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving spatial sub-sampling or interpolation, e.g. alteration of picture size or resolution
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/60—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution
    • F21S41/65—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on light sources
    • F21S41/663—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on light sources by switching light sources
    • 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
    • H05B47/175—Controlling the light source by remote control
    • H05B47/18—Controlling the light source by remote control via data-bus transmission

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)
  • Image Generation (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)

Abstract

L’invention propose un procédé de pilotage d’une source lumineuse pixélisée pour un véhicule automobile, capable d’utiliser des représentations éparses ou compressées de consignes lumineuses comprises dans un flux de données reçues. Le procédé de décompression ou d’interpolation en accord avec des modes de réalisation de l’invention permet de calculer une bonne approximation des valeurs de consignes originales, non-compressées, en utilisant des interpolations polynomiales, et de préférence une interpolation par fonction de Bézier cubique. (Fig. 1))
FR2012298A 2020-11-27 2020-11-27 Procédé de pilotage d’une source lumineuse pixélisée par interpolation de consignes Active FR3116882B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR2012298A FR3116882B1 (fr) 2020-11-27 2020-11-27 Procédé de pilotage d’une source lumineuse pixélisée par interpolation de consignes

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR2012298A FR3116882B1 (fr) 2020-11-27 2020-11-27 Procédé de pilotage d’une source lumineuse pixélisée par interpolation de consignes
FR2012298 2020-11-27

Publications (2)

Publication Number Publication Date
FR3116882A1 FR3116882A1 (fr) 2022-06-03
FR3116882B1 true FR3116882B1 (fr) 2022-12-30

Family

ID=74758952

Family Applications (1)

Application Number Title Priority Date Filing Date
FR2012298A Active FR3116882B1 (fr) 2020-11-27 2020-11-27 Procédé de pilotage d’une source lumineuse pixélisée par interpolation de consignes

Country Status (1)

Country Link
FR (1) FR3116882B1 (fr)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07307941A (ja) * 1994-05-13 1995-11-21 Kokusai Electric Co Ltd 画像データ補間方法及び画像処理装置及びその処理方法
US6061475A (en) * 1998-03-20 2000-05-09 Axcess, Inc. Video compression apparatus and method
US11083055B2 (en) * 2018-09-10 2021-08-03 Lumileds Llc High speed image refresh system
FR3096433B1 (fr) * 2019-05-20 2021-05-21 Valeo Vision Procédé de contrôle d’un dispositif lumineux pour l'émission d’un faisceau lumineux pixelisé

Also Published As

Publication number Publication date
FR3116882A1 (fr) 2022-06-03

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