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US 10,592,011 B2Granted
Gesture detection device for detecting hovering and click
AssigneePixart Imaging Inc.
InventorsShu-Sian Yang, Han-Ping Cheng
Life of this patent
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Abstract
There is provided a gesture detection device including two linear image sensor arrays and a processing unit. The processing unit is configured to compare sizes of pointer images in the image frames captured by the two linear image sensor arrays in the same period or different periods so as to identify a click event.
Claims19
A gesture detection device, comprising:
- a detection surface having a normal direction;
- a first image sensor disposed on the detection surface and configured to capture a first image along the normal direction;
- a second image sensor disposed on the detection surface offsetting a predetermined distance from the first image sensor along a Z-axis, and configured to capture a second image along the normal direction;
- and
- a processing unit configured to calculate an X-axis coordinate according to a position of a pointer image in the first image or a pointer image in the second image, calculate a Y-axis coordinate according to a disparity of the pointer images in the first image and the second image, and identify a click event along the Z-axis when a size difference of the pointer images between the first image and the second image is larger than or equal to a difference threshold,
- wherein the detection surface has two opposite long edges along the X-axis and two opposite short edges along the Z-axis, and the first image sensor and the second image sensor are distanced by a distance along the X-axis.
3 more elements
A gesture detection device, comprising:
- a detection surface having a normal direction;
- a first image sensor disposed on the detection surface and configured to capture first images along the normal direction;
- a second image sensor disposed on the detection surface parallel to the first image sensor in an X-axis and configured to capture second images along the normal direction;
- and
- a processing unit configured to calculate an X-axis coordinate according to a position of a pointer image in the first images or a pointer image in the second images, calculate a Y-axis coordinate according to a disparity of the pointer images in the first images and the second images, and identify a click event when a size variation of the pointer images between the first images captured at different times and/or between the second images captured at different times is larger than or equal to a variation threshold,
- wherein the detection surface has two opposite long edges along the X-axis and two opposite short edges along a Z-axis, and the first image sensor and the second image sensor are distanced by a distance along the X-axis.
3 more elements
A gesture detection device, comprising:
- a detection surface having a normal direction;
- a first image sensor disposed on the detection surface and configured to capture a first image along the normal direction;
- a second image sensor disposed on the detection surface parallel to the first image sensor in an X-axis and configured to capture a second image along the normal direction;
- a third image sensor disposed on the detection surface offsetting a predetermined distance from the first image sensor and the second image sensor along a Z-axis and capturing a third image along the normal direction;
- and
- a processing unit configured to calculate a two-dimensional coordinate according to the first image and the second image, and identify a click event along the Z-axis when a size difference between a pointer image in the first image and a pointer image in the third image or between a pointer image in the second image and the pointer image in the third image is larger than or equal to a difference threshold,
- wherein the detection surface has two opposite long edges along the X-axis and two opposite short edges along the Z-axis, and the first image sensor and the second image sensor are distanced by a distance along the X-axis.
4 more elements
Dependencies are inferred from the claim text.