Methods and systems for augmented reality

Patent metadata

Field	Value
Publication number	US-10698364-B2
Application number	US-201414916835-A
Country	US
Kind code	B2
Filing date	Sep 3, 2014
Priority date	Sep 4, 2013
Publication date	Jun 30, 2020
Grant date	Jun 30, 2020

Abstract

Methods and systems (terminals, devices) for the generation, the retrieval and the display of computer-generated holographic images through a head-mounted display. The holographic images may be used as virtual retrievable tags for display in augmented reality.

First claim

The invention claimed is:

1. A computer-implemented method for the processing of computer-generated holographic coded image data including computer-generated holographic phase-coded image data, comprising:
(a) a step of detecting, by at least one communication terminal, the presence of a wearer provided with a head-mounted computer-generated holographic image displaying device;
(b) responsive to the presence detected at step (a), a step of transmitting computer-generated decoded holographic image data from the at least one communication terminal to the device, and
(c) a step of emitting, by at least one light source, a light beam arranged for displaying the holographic image by illumination of the device, wherein the at least one light source is provided on the at least one communication terminal which is a remote lighting terminal,
wherein step (a) is performed by a sensor of the at leak one communication terminal, which sensor is a haptic command, and
wherein transmitting in step (b) the decoded computer-generated holographic image data from the at least one light source to the device is done before illuminating the device in step (c).

2. The computer-implemented method of claim 1 , wherein
step (b) comprises transmitting said decoded computer-generated holographic image data through optical communication.

3. The computer-implemented method of claim 1 , wherein the at least one communication terminal is connected to a server via a network.

4. The computer-implemented method according to claim 1 , wherein
step (b) comprises sequentially transmitting decoded computer-generated holographic image data from a plurality of distant communication terminals to the device, wherein each of the at least one communication terminal is connected to a communication server via a communication network and wherein the sequential transmission reflects the successive detection steps of the presence of the wearer from the vicinity of the at least one communication terminal to the vicinity of another communication terminal, defining a movement of the wearer as a function of time.

5. The computer-implemented method according to claim 1 further comprising:
(a1) a step of determining the location of the wearer, and wherein
the computer-generated holographic image data of step (h) is defined according to the location determined at step (a1).

6. The computer-implemented method according to claim 1 , further comprising:
(d) a step of detecting a movement of the wearer, and
(e) as a function of the recognition of the movement in step (d), a step of generating a control signal for the selection of further computer-generated holographic image data to be transmitted from the at least one communication terminal to the device.

7. The computer-implemented method according to claim 1 , wherein said method further comprises:
(al) a preliminary step of pre-registering, in a database, an association between an identifier and the wearer, and wherein
the data of step (b) is defined according to the identifier.

8. The computer-implemented method according to claim 7 , wherein
the data of step (b) is defined according to the identifier in accordance with access rights.

9. A system for displaying a computer-generated holographic image for a wearer of a head-mounted computer-generated holographic image displaying device, the system comprising:
said head-mounted computer-generated holographic image displaying device; and
at least one remote lighting terminal communicating with the head-mounted computer-generated holographic image displaying device and comprising:
a light source;
a sensor which is arranged for detecting the presence of a wearer provided with the device in the vicinity of the at least one remote lighting terminal and which is a haptic command; and
a communication interface configured to transmit, to said at least one remote lighting terminal, decoded computer-generated phase-coded image data, upon detecting by the sensor of the presence of the wearer in the vicinity of the at least one remote lighting terminal,
wherein said light source is arranged, responsive to the presence detected by said sensor, for transmitting decoded computer-generated holographic image data from said light source to said device and afterwards for emitting a light beam to illuminate said device so as to display the holographic image.

10. The system according to claim 9 , further comprising:
a communication interface arranged for transmitting the decoded computer-generated holographic image data to the device upon detecting by a sensor of the presence of the wearer in the vicinity of the at least one remote lighting terminal; and
a phase spatial light modulator.

11. The system according to claim 10 , wherein
the phase spatial light modulator is made of LCoS (liquid crystal on silicon) or Glass transmissive Active Matrix Liquid Crystal.

12. The system according to claim 9 , wherein
the operation of the light source is synchronized with the display of the holographic image by the head-mounted computer-generated holographic image displaying device.

Assignees

• Essilor Int

Inventors

• Archambeau Samuel
• Ballet Jerôme
• Bouchier Aude
• Cano Jean-Paul
• Escaich David
• Perrot Stephane

Classifications

• G03H1/02 Primary

  Details {of features involved during the holographic process; Replication of holograms without interference recording} · CPC title

• G03H2001/0228

  Electro-optic or electronic components relating to digital holography (G03H2001/0224 takes precedence; corresponding details, see subgroups of G03H2226/00) · CPC title

• G02C7/14

  Mirrors; Prisms · CPC title

• G02C2202/20

  Diffractive and Fresnel lenses or lens portions · CPC title

• G02C7/086

  Auxiliary lenses located directly on a main spectacle lens or in the immediate vicinity of main spectacles · CPC title