Light projection apparatus and method, and storage medium

Patent metadata

Field	Value
Publication number	US-12307899-B2
Application number	US-202318468295-A
Country	US
Kind code	B2
Filing date	Sep 15, 2023
Priority date	Mar 18, 2021
Publication date	May 20, 2025
Grant date	May 20, 2025

Abstract

A light projection apparatus includes an information obtaining module, a processing module, and a projection module. The information obtaining module is configured to obtain environment information and status information of a first object. The processing module is configured to determine, based on the status information, that the first object is a potentially dangerous object; determine a potentially dangerous area of the first object; determine a to-be-projected area based on the potentially dangerous area and the environment information, where the to-be-projected area is an area in which there is no light projection and light projection is allowed; and determine whether the to-be-projected area is within a projection range of the projection module. In response to a first result determined by the processing module, the projection module performs light projection in the to-be-projected area, to prompt a potential danger caused by the first object.

First claim

What is claimed is:

1. An apparatus comprising:
at least one memory configured to store instructions; and
at least one processor coupled to the at least one memory and configured to execute the instructions to cause the apparatus to:
obtain environment information and status information of a first object, wherein the first object comprises at least one of a vehicle or a pedestrian, and wherein the status information comprises at least one of location information of the first object or motion information of the first object;
determine, based on the status information, that the first object is a potentially dangerous object;
determine a potentially dangerous area of the potentially dangerous object;
determine, based on the potentially dangerous area and the environment information, a to-be-projected area, wherein the to-be-projected area is an area in which there is no light projection and the light projection is allowed;
determine whether the to-be-projected area is within a projection range of the apparatus;
perform, when the to-be-projected area is within the projection range, the light projection in the to-be-projected area to warn a potential danger from the first object; and
send, to another apparatus when the to-be-projected area is not within the projection range, information indicating that the first object is the potentially dangerous object and indicating the to-be-projected area,
wherein the other apparatus performs the light projection on the potential danger caused by the first object when the other apparatus has a projection function, and
wherein the other apparatus performs a relay forwarding of the information indicating that the first object is the potentially dangerous object and indicating the to-be-projected area when the other apparatus has no projection function.

2. The apparatus of claim 1 , wherein the first object comprises a plurality of objects, and wherein the at least one processor is further configured to execute the instructions to cause the apparatus to:
determine, based on a potential danger degree of each of the objects, a projection sequence of the objects; and
perform, according to the projection sequence, a plurality of pieces of the light projection that are in a one-to-one correspondence with the objects.

3. The apparatus according-teof claim 1 , wherein the at least one processor is further configured to execute the instructions to cause the apparatus to:
generate a projection image and light control information, wherein the projection image is based on the environment information and the potential danger, and wherein the light control information is based on the environment information, the projection image, and the to-be-projected area and comprises at least one of an angle of a light a brightness of the light, or a color of the light; and
further perform, based on the projection image and the light control information, the light projection in the to-be-projected area.

4. The apparatus of claim 1 , wherein the at least one processor is further configured to execute the instructions to cause the apparatus to determine a potentially dangerous scenario of the first object.

5. The apparatus of claim 1 , wherein the apparatus is implemented in the vehicle or a road side infrastructure.

6. The apparatus of claim 4 , wherein the at least one processor is further configured to execute the instructions to cause the apparatus to determine, based on the potentially dangerous area or the potentially dangerous scenario, a potential danger degree of the first object.

7. The apparatus of claim 1 , wherein the at least one processor is further configured to execute the instructions to cause the apparatus to:
predict, based on the status information, a motion track of the first object in a preset future duration; and
determine, based on the motion track, that the first object is the potentially dangerous object.

8. The apparatus of claim 7 , wherein the preset future duration comprises a plurality of future moments, wherein the motion track comprises location areas of the first object at the future moments, and wherein the at least one processor is further configured to execute the instructions to cause the apparatus to:
determine, for a second object that is the vehicle in the first object and at a future moment in the preset future duration, whether a first location area of the second object at the future moment overlaps a second location area of a third object; and
determine, when the first location area and the second location area overlap, that the second object and the third object are potentially dangerous objects.

9. A method comprising:
obtaining environment information and status information of a first object, wherein the first object comprises at least one of a vehicle or a pedestrian, and wherein the status information comprises at least one of location information of the first or motion information of the first object;
determining, based on the status information, that the first object is a potentially dangerous object;
determining a potentially dangerous area of the first potentially dangerous object; determining a to-be-projected area based on the potentially dangerous area and the environment information, wherein the to-be-projected area is an area in which there is no light projection and the light projection is allowed;
determining whether the to-be-projected area is within a projection range of a light projection apparatus;
performing, when the to-be-projected area is within the projection range, the light projection in the to-be-projected area to warn a potential danger from the first object; and
sending, to another apparatus when the to-be-projected area is not within the projection range, information indicating that the first object is the potentially dangerous object and indicating the to-be-projected area,
wherein the other apparatus performs the light projection on the potential danger caused by the first object when the other apparatus has a projection function, and
wherein the other apparatus performs a relay forwarding of the information indicating the first object is the potentially dangerous object and indicating the to-be-projected area when the other apparatus has no projection function.

10. The method of claim 9 , wherein the first object comprises a plurality of objects, and wherein the method further comprises:
determining, based on a potential danger degree of each of the objects, a projection sequence of the objects; and
performing, according to the projection sequence, a plurality of pieces of the light projection that are in a one-to-one correspondence with the objects.

11. The method of claim 9 , further comprising:
generating a projection image and light control information, wherein projection image is based on the environment information and the potential danger and wherein the light control information is based on the environment information, the projection image, and the to-be-projected area and comprises at least one of an angle of a light, a brightness of the light, or a color of the light; and
further performing. based on the projection image and the light control information, the light projection in the to-be-projected area.

12. The method of claim 9 , further comprising determining a potentially dangerous scenario of the first object.

13. The method of claim 9 , wherein the light projection apparatus is applied to the vehicle or a road side infrastructure.

14. The method of claim 12 , further comprising determining, based on the potentially dangerous area or the potentially dangerous scenario, a potential danger degree of the f

Assignees

• Shenzhen Yinwang Intelligent Technology Co Ltd

Inventors

• Jiang Haiying
• Xia Yuan
• Liu Nan

Classifications

• B60Q2400/50

  Projected symbol or information, e.g. onto the road or car body · CPC title

• B60Q1/525 Primary

  automatically indicating risk of collision between vehicles in traffic or with pedestrians, e.g. after risk assessment using the vehicle sensor data · CPC title

• H04N9/3179

  Video signal processing therefor · CPC title

• H04N9/3182

  Colour adjustment, e.g. white balance, shading or gamut (white balance per se H04N9/73; control of amplitude of colour signals H04N9/68; colour control circuits for displays in general G09G5/02, G09G3/2003, G09G3/3607) · CPC title

• H04N9/3194

  including sensor feedback · CPC title