US 2018/0324343 A1Published application

Adaptive light source

AssigneeLumileds Holding B.V.

InventorsArjen Van Der Sijde, Nicola Pfeffer, Quint Van Voorst-Vader, Yourii Martynov

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Abstract

A method according to embodiments of the invention includes creating a three-dimensional profile of a scene, calculating a relative amount of light for each portion of the scene based on the three-dimensional profile, and activating a light source to provide a first amount of light to a first portion of the scene, and a second amount of light to a second portion of the scene. The first amount and the second amount are different. The first amount and the second amount are determined by calculating a relative amount of light for each portion of the scene.

Claims15

Dependent claims

A method comprising:

capturing a first image of a scene;
illuminating the scene with a first amount of light from a light source after capturing the first image, the light source comprising an array of light emitting diodes (LEDs);
capturing a second image of the scene while illuminating the scene with the first amount of light,
creating a three-dimensional profile of the scene;
calculating a relative amount of light for each portion of the scene based on the three-dimensional profile, the first image and the second image,
wherein said calculating a relative amount of light for each portion of the scene determines that a first portion of the scene and a second portion of the scene receive different amounts of light;
activating the light source for illuminating the calculated relative amount of light,
wherein said activating the light source comprises providing a first amount of current to a first LED, the first LED illuminating the first portion of the scene, and providing a second amount of current to a second LED, the second LED illuminating the second portion of the scene;
and
capturing a final image of the scene after activating the light source for illuminating the calculated relative amount of light.

7 more elements

Dependencies are inferred from the claim text.

Facts

Application: 15/773,356Filed 2 Nov 2016
Priority: EP 16158004.81 Mar 2016
Published: 8 Nov 2018
Term ends: Not estimatedThe source records don’t support an estimate.

Classification18 codes

G03B 15/05
Combinations of cameras with lighting apparatus; Flash units: combinations of cameras with electronic flash apparatus; Electronic flash units
G06T 7/586
From multiple images: from multiple light sources, e.g. photometric stereo
G06V 10/141
Optical characteristics of the device performing the acquisition or on the illumination arrangements: control of illumination
G06V 10/147
Optical characteristics of the device performing the acquisition or on the illumination arrangements: details of sensors, e.g. sensor lenses

Family

Application62/253,580Us provisional application · filed 10 Nov 2015
US 10,602,074 B2Related patent
US 2018/0324343 A1This patent

From the US filing history. Foreign family members aren’t listed.

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