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CN-122002674-A - Control method and device for cabin lighting equipment

CN122002674ACN 122002674 ACN122002674 ACN 122002674ACN-122002674-A

Abstract

The disclosure provides a control method and a device for an in-cabin lighting device. A control method for an in-cabin lighting device includes dividing the lighting device into a plurality of visual partitions, obtaining a subject image, dividing the subject image into a plurality of image partitions such that each image partition has an associated spatial correspondence with each visual partition in an occupant field of view, and determining an optical parameter of the lighting device for each visual partition based on image information and the spatial correspondence of each image partition. Based on the spatial correspondence between the visual partitions and the image partitions, the reproduction of the theme image on interior illumination is realized, and the immersive visual experience of passengers is improved.

Inventors

  • SUN HUIQING
  • GONG QIWEI
  • LI CHUANG
  • LU CHENGLONG
  • Andreas Duboze
  • Yang Tinius

Assignees

  • 延锋国际汽车技术有限公司

Dates

Publication Date
20260508
Application Date
20260409

Claims (20)

  1. 1. A control method for an in-cabin lighting device, the method comprising: dividing the lighting device into a plurality of visual partitions; Obtaining a subject image, dividing the subject image into a plurality of image partitions such that each image partition has an associated spatial correspondence with each visual partition in an occupant field of view, and And determining the optical parameters of the lighting equipment of each visual partition based on the image information of each image partition and the spatial corresponding relation.
  2. 2. The method of claim 1, wherein the plurality of visual partitions are distributed along a first direction, and wherein dividing the subject image into a plurality of image partitions comprises: The subject image is divided into a plurality of image partitions along the first direction, and the number of the plurality of image partitions corresponds to the number of the plurality of visual partitions.
  3. 3. The method of claim 2, wherein dividing the subject image into a plurality of image partitions comprises: The size of each image partition along the first direction is adjusted such that the size is proportional to the number of lighting units in the corresponding visual partition.
  4. 4. The method of claim 1, wherein dividing the subject image into a plurality of image partitions comprises: Performing image semantic recognition on the subject image using an image semantic recognition model to obtain a plurality of semantic regions, and The plurality of image partitions is determined based on the plurality of semantic regions.
  5. 5. The method of claim 4, wherein the plurality of visual partitions are distributed along a first direction, and wherein determining the plurality of image partitions based on the plurality of semantic regions comprises: Combining and ordering the plurality of semantic regions according to a preset visual-recognition hierarchy to obtain the plurality of image partitions corresponding to each of the visual-recognition hierarchies, Wherein the number of the plurality of image partitions corresponds to the number of the plurality of visual partitions, and an order of the image partitions along the first direction corresponds to an order of distribution of the visual partitions in the occupant's field of view.
  6. 6. The method of claim 1, wherein determining the optical parameters of the lighting device for each visual zone based on the image information for each image zone and the spatial correspondence comprises: Extracting candidate colors from each image partition, and calculating the color ratio of each candidate color in the image partition; selecting at least two times from the candidate colors to generate a plurality of color combinations, each color combination comprising at least two of the candidate colors; Calculating a combination duty ratio of each color combination in the image partition according to the color duty ratio, and calculating a color difference between the candidate colors within each color combination, thereby determining a target color combination from the plurality of color combinations based on the combination duty ratio and the color difference, and And determining the color of the illumination device of the visual subarea corresponding to the image subarea based on the target color combination.
  7. 7. The method of claim 6, wherein extracting candidate colors from the image partition comprises: Extracting a plurality of colors in the image partition in an HSV color space of the subject image, and Filtering out the colors with the brightness values lower than the brightness threshold value, and taking the residual colors as the candidate colors.
  8. 8. The method of claim 6, wherein determining the optical parameters of the lighting device for each visual zone based on the image information for each image zone and the spatial correspondence further comprises: Obtaining target color combinations of two adjacent visual partitions; Judging whether the color parameter difference value between the two target color combinations exceeds a color parameter difference value threshold value; generating a transition color sequence for fading from one target color combination to another target color combination in the event that the color parameter difference exceeds a color parameter difference threshold, and Based on the transition color sequence, the colors of at least some of the lighting devices in the two adjacent visual zones are determined to smooth the transition of the colors of the two adjacent visual zones.
  9. 9. The method according to claim 1, characterized in that: the subject image is generated based on an input of an occupant using an image generation model, wherein the input includes at least one of voice, a touch signal, and a face capture image.
  10. 10. The method according to claim 1, wherein the method further comprises: Obtaining status data, the status data including at least one of occupant status data, vehicle status data, and environmental status data; Determining a current scene of the occupant based on the status data, wherein the current scene includes one of a driving scene, an entertainment scene, a rest scene, and a warning scene, and And determining optical parameters of the lighting equipment of at least one preset subarea according to the current scene, wherein the preset subarea comprises at least one of an instrument panel area, a door panel area and a ceiling area.
  11. 11. The method according to claim 1, wherein the method further comprises: The illumination apparatus is divided into a plurality of visual zones based on a passenger seat position, a passenger head position, a passenger eye position, a center position of a plurality of passenger positions, or a specified position in the vehicle.
  12. 12. The method according to claim 1, wherein the method further comprises: obtaining subject audio, and And determining optical parameters of the lighting equipment of the preset subareas based on the sound effect information of the theme audio.
  13. 13. The method according to claim 12, wherein: the subject audio is generated by an audio generation model based on an input of an occupant, wherein the input includes at least one of speech, a touch signal, and a face capture image.
  14. 14. The method of any one of claims 1 to 13, further comprising controlling a lighting device based on the determined optical parameter, wherein controlling the lighting device comprises: controlling a first set of the visual zones in the lighting device over a first communication link; Controlling a second set of said visual zones in said lighting device by means of a second communication link, Wherein the first group has a higher visual priority than the second group, and Wherein an independent link is provided by the first communication link for each visual partition in the first group and a shared link is provided by the second communication link for all visual partitions in the second group.
  15. 15. The method according to claim 14, wherein: the first set of visual zones includes a dashboard area; The second set of visual zones including a door panel area and a ceiling area, and The first communication link and the second communication link are communication links of a vehicle-based controller area network.
  16. 16. A vehicle, characterized in that the vehicle comprises: Lighting device in cabin, and A controller configured to perform the method of any one of claims 1 to 15.
  17. 17. A control system for an in-cabin lighting fixture, the system comprising: The external input device comprises at least one of a voice acquisition unit, a touch acquisition unit and an image acquisition unit; A domain controller comprising a communication unit and a multi-modal data processing unit configured to perform the method according to any one of claims 1 to 15, and An execution module comprising a light controller and a lighting device, The communication unit is configured to communicate with a cloud processing module, the external input device and the execution module, wherein the cloud processing module comprises a generation unit.
  18. 18. A computing device, the computing device comprising: one or more processors, and A memory storing computer-executable instructions that, when executed by the one or more processors, cause the one or more processors to perform the method of any of claims 1-15.
  19. 19. A computer-readable storage medium having stored thereon computer-executable instructions, which when executed by a computer, cause the computer to perform the method according to any of claims 1 to 15.
  20. 20. A computer program product, characterized in that it comprises instructions which, when executed by a processor, implement the method according to any one of claims 1 to 15.

Description

Control method and device for cabin lighting equipment Technical Field The present disclosure relates to the field of vehicles, and more particularly, to a control method for an in-cabin lighting device, a vehicle, a control system for an in-cabin lighting device, a computing device, a computer-readable storage medium having computer-executable instructions stored thereon, and a computer program product. Background With the continuous development of the automobile industry, vehicles are no longer considered as a vehicle, but gradually evolve into a personalized mobile space integrating travel, rest and entertainment. In order to create a more comfortable, pleasant and stylish driving environment, lighting devices for cabins are increasingly being used in modern automobiles. Such lighting devices typically include LED light strips (also known as "mood lights") embedded in door trim, center consoles, foot spaces, or instrument consoles, and the like, as well as display screens such as center screens, which are capable of emitting light of multiple colors and brightnesses. Through the fine control of the light rays, the visual layering sense and the design aesthetic feeling in the vehicle can be effectively improved, and the travel experience with more quality and quality is brought to drivers and passengers. Disclosure of Invention It is an object of the present disclosure to provide a control method for an in-cabin lighting device for more refined, personalized control of the lighting device. According to a first aspect of the present disclosure, there is provided a control method for an in-cabin lighting device, including dividing the lighting device into a plurality of visual partitions, obtaining a subject image, dividing the subject image into a plurality of image partitions such that each image partition has an associated spatial correspondence with each visual partition in an occupant's field of view, and determining an optical parameter of the lighting device for each visual partition based on image information of each image partition and the spatial correspondence. In some embodiments, the plurality of visual partitions are distributed along a first direction and dividing the subject image into a plurality of image partitions includes dividing the subject image into a plurality of image partitions along the first direction and the number of the plurality of image partitions corresponds to the number of the plurality of visual partitions. In some embodiments, dividing the subject image into a plurality of image partitions includes adjusting a size of each image partition along the first direction such that the size is proportional to a number of lighting units in a corresponding visual partition. In some embodiments, partitioning the subject image into a plurality of image partitions includes performing image semantic recognition on the subject image using an image semantic recognition model to obtain a plurality of semantic regions, and determining the plurality of image partitions based on the plurality of semantic regions. In some embodiments, the plurality of visual partitions are distributed along a first direction, and determining the plurality of image partitions based on the plurality of semantic regions includes merging and ordering the plurality of semantic regions according to a preset visual-recognition hierarchy to obtain the plurality of image partitions corresponding to each of the visual-recognition hierarchies, wherein a number of the plurality of image partitions corresponds to a number of the plurality of visual partitions, and an order of each image partition along the first direction corresponds to an order of distribution of each visual partition in an occupant field of view. In some embodiments, determining the optical parameters of the lighting device of each visual zone based on the image information of each image zone and the spatial correspondence comprises extracting candidate colors from each image zone, calculating a color ratio of each candidate color in the image zone, selecting at least twice from the candidate colors to generate a plurality of color combinations, each color combination comprising at least two of the candidate colors, calculating a combined ratio of each color combination in the image zone according to the color ratios, and calculating a color phase difference between the candidate colors within each color combination, thereby determining a target color combination from the plurality of color combinations based on the combined ratio and the color phase difference, and determining the color of the lighting device of the visual zone corresponding to the image zone based on the target color combination. In some embodiments, extracting candidate colors from the image partition includes extracting a plurality of colors in the image partition in an HSV color space of the subject image and filtering out colors having luminance values below a luminance thresho