Power consumption in motion-capture systems
AssigneeLeap Motion, Inc.
InventorDavid HOLZ
Life of this patent
Estimating the term…
Abstract
The technology disclosed relates to reducing the overall power consumption of motion-capture system without compromising the quality of motion capture and tracking In general, this is accomplished by operating the motion-detecting cameras and associated image-processing hardware in a low-power mode unless and until a moving object is detected. Once an object of interest has been detected in the field of view of the cameras, the motion-capture system is “woken up,” i.e., switched into a high-power mode, in which it acquires and processes images at a frame rate sufficient for accurate motion tracking.
Claims20
A method of operating a motion-capture system with reduced power consumption, the method including:
- monitoring at least one environmental illumination parameter within a field of view of at least one camera of a motion-capture system;
- and
- in response to detection of a change in the environmental illumination parameter exceeding a specified threshold, switching the camera from a low-power mode to a high-power mode.
A motion-capture system, including:
- at least one camera for capturing images of an object within a field of view thereof;
- an image-analysis module for tracking motion of the object based on the images;
- a sensor for monitoring environmental brightness within the field of view of the at least one camera;
- and
- a control module for switching the at least one camera from a low-power mode to a high-power mode upon detection by the sensor of a change in environmental brightness exceeding a specified threshold.
A motion-capture system, including:
- at least one camera for capturing images of an object within a field of view thereof;
- an image-analysis module for tracking motion of the object based on the images;
- a light source for illuminating the object within the field of view of the at least one camera;
- a sensor for monitoring environmental reflectivity within the field of view of the at least one camera;
- and
- a control module for switching the at least one camera from a low-power mode to a high-power mode upon detection by the sensor of a change in environmental brightness exceeding a specified threshold,
- wherein the control module causes the light source to blink and the sensor to measure a brightness of a reflection signal to thereby monitor the environmental reflectivity.
Dependencies are inferred from the claim text.