Method, device, and computer program product for managing virtual visual content
Embodiments of the present disclosure relate to a method, a device, and a computer program product for managing virtual visual content. A method for managing virtual visual content is provided, which includes: determining a plurality of content portions from virtual visual content that is to be interacted with a user, the plurality of content portions having different change frequencies in the interaction; and transmitting, based on the change frequencies, the plurality of content portions to a plurality of computing devices having different proximities to the user, respectively. Through the embodiments of the present disclosure, the delay of a user interacting with virtual visual content can be reduced.
1. A method for managing virtual visual content, comprising:
determining content portions from virtual visual content to be interacted with a user, the content portions having different change frequencies; and
transmitting content portions to respective computing devices, at least some of the computing devices having different proximities to the user;
wherein transmitting the content portions is determined based on at least the change frequencies of the virtual visual content and on proximities of the respective computing devices to the user; and
wherein transmitting the content portions to the respective computing devices comprises transmitting a first content portion in the content portions to a first computing device, and transmitting a second content portion in the content portions to a second computing device, the change frequency of the second content portion being higher than the change frequency of the first content portion, and the proximity of the second computing device to the user being relatively closer to the user than the proximity of the first computing device to the user.
2. The method according to claim 1 , wherein determining the content portions from the virtual visual content comprises:
determining a static content portion and a dynamic content portion from the virtual visual content, the change frequency of the dynamic content portion being higher than that of the static content portion.
3. The method according to claim 2 , wherein determining the static content portion and the dynamic content portion from the virtual visual content comprises:
determining the first content portion and the second content portion from the virtual visual content by applying at least one of background subtraction, motion detection, and object detection to the virtual visual content; and
determining the first content portion and the second content portion as the static content portion and the dynamic content portion, respectively.
4. The method according to claim 2 , wherein determining the content portions from the virtual visual content further comprises:
determining a first dynamic content portion and a second dynamic content portion from the dynamic content portion, the change frequency of the second dynamic content portion being higher than that of the first dynamic content portion.
5. The method according to claim 4 , wherein determining the first dynamic content portion and the second dynamic content portion from the dynamic content portion comprises:
determining change frequency statistics on the dynamic content portion; and
dividing the dynamic content portion into the first dynamic content portion and the second dynamic content portion based on the statistics.
6. The method according to claim 4 , wherein determining the first dynamic content portion and the second dynamic content portion from the dynamic content portion comprises:
obtaining a visual focus area of the user, the visual focus area being determined based on motion information of a time when the user interacts with historical visual content, the motion information being obtained from a viewing device worn by the user when viewing the historical visual content; and
determining a content portion corresponding to the visual focus area in the dynamic content portion as the second dynamic content portion.
7. The method according to claim 6 , wherein the motion information comprises at least one of the following: eyeball motion information and head motion information.
8. The method according to claim 1 , wherein the respective computing devices comprise at least one of the following: an augmented reality/virtual reality content viewing device, an edge server, and a cloud computing device.
9. An electronic device, comprising:
at least one processing unit; and
at least one memory coupled to the at least one processing unit and storing instructions configured to be executed by the at least one processing unit, wherein the instructions, when executed by the at least one processing unit, cause the device to perform actions comprising:
determining content portions from virtual visual content to be interacted with a user, the content portions having different change frequencies; and
transmitting the content portions to respective computing devices, at least some of the computing devices having different proximities to the user;
wherein transmitting the content portions is determined based on at least the change frequencies of the virtual visual content and on proximities of the respective computing devices to the user; and
wherein transmitting the content portions to the respective computing devices comprises transmitting a first content portion in the content portions to a first computing device, and transmitting a second content portion in the content portions to a second computing device, the change frequency of the second content portion being higher than the change frequency of the first content portion, and the proximity of the second computing device to the user being relatively closer to the user than the proximity of the first computing device to the user.
10. The device according to claim 9 , wherein determining the content portions from the virtual visual content comprises:
determining a static content portion and a dynamic content portion from the virtual visual content, the change frequency of the dynamic content portion being higher than that of the static content portion.
11. The device according to claim 10 , wherein determining the static content portion and the dynamic content portion from the virtual visual content comprises:
determining the first content portion and the second content portion from the virtual visual content by applying at least one of background subtraction, motion detection, and object detection to the virtual visual content; and
determining the first content portion and the second content portion as the static content portion and the dynamic content portion, respectively.
12. The device according to claim 10 , wherein determining the content portions from the virtual visual content further comprises:
determining a first dynamic content portion and a second dynamic content portion from the dynamic content portion, the change frequency of the second dynamic content portion being higher than that of the first dynamic content portion.
13. The device according to claim 12 , wherein determining the first dynamic content portion and the second dynamic content portion from the dynamic content portion comprises:
determining change frequency statistics on the dynamic content portion; and
dividing the dynamic content portion into the first dynamic content portion and the second dynamic content portion based on the statistics.
14. The device according to claim 12 , wherein determining the first dynamic content portion and the second dynamic content portion from the dynamic content portion comprises:
obtaining a visual focus area of the user, the visual focus area being determined based on motion information of a time when the user interacts with historical visual content, the motion information being obtained from a viewing device worn by the user when viewing the historical visual content; and
determining a content portion corresponding to the visual focus area in the dynamic content portion as the second dynamic content portion.
15. The device according to claim 14 , wherein the motion information comprises at least one of the following: eyeball motion information and head motion information.
16. The device according to claim 9 , wherein the respective computing devices comprise at least one of the following: an augmented reality/virtual reality content viewing device, an edge server, and a cloud computing device.
17. A computer program product tangibly stored in a non-transitory computer storage medium and comprising machine-executable instructions, wherein the machine-executable instructions, when executed by a device, cause the device to execute a method for managing virtual visual content, the method comprising:
determining content portions from virtual visual content to be interacted with a user, the content portions having different change frequencies; and
transmitting the content portions to respective computing devices, at least some of the computing devices having different proximities to the user;
wherein transmitting the content portions is determined based on at least the change frequencies of the virtual visual content and on proximities of the respective computing devices to the user; and
wherein transmitting the content portions to the respective computing devices comprises transmitting a first content portion in the content portions to a first computing device, and transmitting a second content portion in the content portions to a second computing device, the change frequency of the second content portion being higher than the change frequency of the first content portion, and the proximity of the second computing device to the user being relatively closer to the user than the proximity of the first computing device to the user.
18. The computer program product according to claim 17 , wherein determining the content portions from the virtual visual content comprises:
determining a static content portion and a dynamic content portion from the virtual visual content, the change frequency of the dynamic content portion being higher than that of the static content portion.
19. The computer program product according to claim 18 , wherein determining the static content portion and the dynamic content portion from the virtual visual content comprises:
determining the first content portion and the second content portion from the virtual visual content by applying at least one of background subtraction, motion detection, and object detection to the virtual visual content; and
determining the first content portion and the second content portion as the static content portion and the dynamic content portion, respectively.
20. The computer program product according to claim 18 , wherein determining the content portions from the virtual visual content further comprises:
determining a first dynamic content portion and a second dynamic content portion from the dynamic content portion, the change frequency of the second dynamic content portion being higher than that of the first dynamic content portion.