Absolute pointing device and method and interaction device

By using dynamic vision sensors to perceive the flicker light source in home entertainment equipment, and calculate the intersection coordinates of the camera optical axis and the flicker light source, solving the problems of high cost, large power consumption and poor real-time performance in the prior art, realizing low-cost, low power consumption and high real-time absolute pointing interaction.

CN119729073APending Publication Date: 2025-03-28宁波时识科技有限公司
3 Cites 8 Cited by

Patent Information

Application Number
CN202411863501.2
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-17
Publication Date
2025-03-28

AI Technical Summary

Technical Problem

In the prior art screen devices in the field of home entertainment, there are problems such as high cost, large power consumption and poor real-time performance, and it is difficult to realize a low-cost, low power consumption and high real-time absolute pointing interaction solution.

Method used

Dynamic vision sensor (DVS) is used to sense the flickering light source pointed to on the device, and by filtering and decoding the event stream, identifying the identification and pose parameters of the flickering light source, and computing the intersection coordinates of the camera's optical axis and the flickering light source.

Benefits of technology

It realizes absolute pointing interaction with low cost, low power consumption and high real-time, reduces the data transmission bandwidth requirement between the pointing device and the pointing device, and avoids the problems of high power consumption and high cost.

✦ Generated by Eureka AI based on patent content.
Patent Text Reader

Abstract

The invention discloses absolute pointing equipment, an absolute pointing method and interactive equipment. In order to solve the problems of high power consumption, low real-time performance and high cost in the existing scheme, a DVS is arranged in a pointing device and is used for sensing a flicker light source arranged on a pointed device; the pointed device is provided with three or more flickering light sources, and at least three flickering light sources are not collinear. Filtering the event stream output by the DVS, extracting pixel coordinates associated with the flicker light sources, and identifying the identifier of each flicker light source; obtaining a pose parameter of the camera according to the pixel coordinates associated with the flicker light source, and obtaining optical axis information of the camera according to the pose parameter of the camera; according to the optical axis information of the camera, obtaining coordinate information of an intersection point of the optical axis of the camera and the coplanar where the at least three flickering light sources are located; and the pointed device executes a corresponding response according to the coordinate information of the intersection point. The method has the advantages of low cost, low power consumption and high real-time performance.
Need to check novelty before this filing date? Find Prior Art