# US 2019/0174603 A1 · Method for automatically mapping light elements in an assembly of light structures

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- Number: US 2019/0174603 A1
- Document ID: US20190174603A1
- Status: Published application
- Kind: A1
- Application number: 16/267,341
- Filed: 2019-02-04
- Published: 2019-06-06
- Earliest claimed: 2016-02-29
- Assignees: Symmetric Labs, Inc.
- Applicants: Symmetric Labs, Inc.
- Inventors: Alexander Green; Kyle Fleming
- Web page: https://patentgrep.com/patent/US20190174603A1

## CPC

- H05B 47/155: Coordinated control of two or more light sources
- G06T 7/74: {involving reference images or patches}
- H04N 7/18: Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
- H05B 45/22: using optical feedback
- H05B 47/125: by using cameras
- G06T 2207/10016: Video; Image sequence
- G06T 2207/20224: Image subtraction
- Y02B 20/40: Control techniques providing energy savings, e.g. smart controller or presence detection
- H05B: ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- G06T: IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION
- Y02B: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS

## Abstract

One variation of a method for automatically mapping light elements in light structures arranged in an assembly includes: defining a sequence of test frames—each specifying activation of a unique subset of light elements in the assembly—executable by the set of light structures; serving the sequence of test frames to the assembly for execution; receiving photographic test images of the assembly, each photographic test image recorded during execution of one test frame by the assembly; for each photographic test image, identifying a location of a particular light element based on a local change in light level represented in the photographic test image, the particular light element activated by the set of light structures according to a test frame during recordation of the photographic test image; and aggregating locations of light elements identified in photographic test images into a virtual map representing positions of light elements within the assembly.

## Claims

### Claim 1

A method for automatically mapping light elements in a set of light structures arranged in an assembly, the method comprising:
serving a sequence of test frames to the assembly for execution by the set of light structures, each test frame in the sequence of frames executable by the set of light structures and specifying activation of a subset of light elements within the set of light structures;
receiving a set of optical test images of the assembly, each optical test image in the set of optical test images recorded by an imaging system during execution of one test frame, in the sequence of test frames, by the set of light structures;
for each optical test image in the set of optical test images, detecting a location of a particular light element within a field of view of the imaging system based on a local change in light level represented in the optical test image, the particular light element activated within the set of light structures according to a test frame in the sequence of test frames executed by the assembly during recordation of the optical test image; and
aggregating locations of light elements detected in the set of optical test images into a virtual map representing positions of light elements within the assembly.