Stochastic dynamic atmosphere

• US 8,788,098 B2
• Filed: 05/08/2009
• Issued: 07/22/2014
• Est. Priority Date: 05/13/2008
• Status: Expired due to Fees

• Current Assignee: Signify Holding B.V. (Signify N.V.)
• Original Assignee: Koninklijke Philips N.V.
• Inventors: Sekulovski, Dragan, Clout, Ramon Antoine Wiro, Kater, Bram, Overbeek, Therese Jacoba Maria
• Primary Examiner(s): KASENGE, CHARLES R
• Application Number:
  US12/991,728
• Publication Number:
  US 20110057582A1
• Time in Patent Office: 1,901 Days
• Field of Search: 700/19, 700/275, 315/312, 315/363, 345/72, 345/83, 345/88, 706/52
• US Class Current: 700/275
• CPC Class Codes: G06F 18/23 Clustering techniques
• CPC Class Codes: H05B 45/20 Controlling the colour of the light
• CPC Class Codes: H05B 47/105 in response to determined parameters
• CPC Class Codes: H05B 47/155 Coordinated control of two or more light sources

Abstract

The invention concerns a lighting device for creating dynamic atmospheres, the lighting device comprising: a light source adapted to operate in a plurality of color states, the light source emitting differing colors for each color state; a controller for controlling the color state of the light source; the controller comprising a random generator to provide a transition between a previous and a subsequent state, wherein the controller is adapted to provide the transition based on probabilistic output provided by the random generator implementing a stochastic model, the probabilistic output depending on the previous color state. In addition, a method is provided for generating the stochastic model; and a method for creating dynamic atmospheres based on probabilistic output provided by the stochastic model.

Claims

1. A lighting device for creating dynamic atmospheres, said lighting device comprising:

a light source adapted to operate in a plurality of color states, the light source emitting differing colors for each color state;

a random generator;

a controller for controlling the color state of the light source, the controller adapted to provide a transition between a previous and a subsequent color state based on a output provided by the random generator;

a stochastic model defining transitions between subsequent states is implemented in the controller;

wherein the controller is adapted to provide the transition between a previous and a subsequent color state such that, based on the outcome of the random generator and starting from a present color state, the controller is arranged to decide and control by the stochastic model which subsequent color state is realized based on the present color state;

a multimedial output device driven by multimedial sources;

a clustering circuit for clustering the multimedial output according to a predefined aspect;

a computational circuit for computing a statistic on subsequent transitions between the clusters of the multimedial sources;

a processing circuit for generating probability parameters associated with the computed statistic; and

an output circuit for outputting the probability parameters to the random generator so as to implement the stochastic model.

2. The lighting device according to claim 1, wherein the transition regards a temporal color transition between previous and subsequent color states.

3. The lighting device according to claim 1, further comprising a presetting circuit, arranged to define a transition dynamic between a previous and a subsequent color state so that state transitions proceed according to the transition dynamic in a predefined manner.

4. The lighting device according to claim 1 further comprising a terminal for exchanging stochastic model parameters;

transition dynamic parameters and/or color state parameters.

5. The lighting device according to claim 1, wherein the multimedial output devices are operable in response to a color state transition.

6. The system comprising a geometric arrangement of a plurality of coupled lighting devices according to claim 1.

7. A method for creating dynamic atmospheres, the method comprising:

operating a light source in a plurality of color states,

each color state of the light source associated with a perceptually differing atmosphere;

providing, by a controller controlling the light source, a transition between a previous and subsequent color state, based on output provided by a random generator to the controller,

implementing by the random generator a stochastic model,

the stochastic model implemented by the random generator defining transitions between subsequent states implemented in the controller

wherein the controller is adapted to provide the transition between a previous and a subsequent color state such that, based on the outcome of the random generator, and starting from a present color state, the controller is arranged to decide and control by the stochastic model which of the subsequent color state is realized based on the present color state;

receiving multimedial input;

clustering the multimedial input according to a predefined aspect;

computing a statistic on subsequent transitions between the clusters of the multimedial inputs; and

generating probability parameters associated with the computed statistic so as to implement the stochastic model.

8. The method according to claim 7, wherein the parameters of the stochastic model are extracted from a temporal color distribution of a video source sequence.

9. The method according to claim 7, wherein the parameters of the stochastic model are extracted from a spatial color distribution of an image.

10. A lighting device for creating dynamic atmospheres, said lighting device comprising:

a light source adapted to operate in a plurality of color states, the light source emitting differing colors for each color state;

a random generator;

a controller for controlling the color state of the light source, the controller adapted to provide a transition between a previous and a subsequent color state based on a output provided by the random generator;

a stochastic model defining transitions between subsequent states is implemented in the controller;

wherein the controller is adapted to provide the transition between a previous and a subsequent color state such that, based on the outcome of the random generator and starting from a present color state, the controller is arranged to decide and control by the stochastic model which subsequent color state is realized based on the present color state;

an input for receiving multimedial input;

the controller operable to

cluster the multimedial input according to a predefined aspect;

compute a statistic on subsequent transitions between the clusters;

generate probability parameters associated with the computed statistic; and

output the probability parameters so as to implement the stochastic model.