REAL-TIME EMBEDDED VISIBLE SPECTRUM LIGHT VISION-BASED HUMAN FINGER DETECTION AND TRACKING METHOD
First Claim
1. A method, comprising:
- capturing images, with a camera of an image capture device, in visible spectrum light of a human finger as part of a human hand in a field of view (FOV) of said camera;
processing, by an image processor of said image capture device, a first one of said images to detect a presence of said finger;
assigning, by said image capture device, a position of said presence of said finger;
tracking, by said image capture device, movement of said finger within said FOV by processing at least a second one of said images;
generating, by said image capture device, a command based on said tracked movement of said finger within said FOV; and
transmitting, with an interface, said detection of said finger, said position of said finger, and said command to an external apparatus.
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Abstract
In one aspect there is provided an embodiment of an image capture device comprising a camera, an image processor, a storage device and an interface. The camera is configured to capture images in visible spectrum light of a human finger as part of a human hand in a field of view (FOV) of the camera. The image processor is configured to process a first one of the images to detect a presence of the finger. The image capture device is configured to detect the position of the presence of the finger tip, track movement of the finger tip within the FOV by processing at least a second one of the images and generate a command based on the tracked movement of the finger within the FOV. The method does not require any pre-detection training sequence with said finger prior to finger detection, and does not require the finger to be in specific relative angle or finger orientation in said FOV. If the human hand is holding a “finger” like object, such as a pen or stick, such object will be recognized as finger and the tip of the object will be recognized as finger tip and position is also detected. The interface is configured to transmit the detection of the presence of the finger, the assigned position of the finger tip and the command to an external apparatus.
57 Citations
22 Claims
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1. A method, comprising:
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capturing images, with a camera of an image capture device, in visible spectrum light of a human finger as part of a human hand in a field of view (FOV) of said camera; processing, by an image processor of said image capture device, a first one of said images to detect a presence of said finger; assigning, by said image capture device, a position of said presence of said finger; tracking, by said image capture device, movement of said finger within said FOV by processing at least a second one of said images; generating, by said image capture device, a command based on said tracked movement of said finger within said FOV; and transmitting, with an interface, said detection of said finger, said position of said finger, and said command to an external apparatus. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. The method as recited in claim 10 wherein said object displayed by said external apparatus in said FOV is moved corresponding to said command.
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11. An image capture device, comprising:
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a camera; an image processor; a storage device; and an interface wherein; said camera is configured to capture images in visible light of a human finger as part of human hand in a field of view (FOV) of said camera, said image processor is configured to process a first one of said images to detect a presence of said finger, said image capture device is configured to; assign a position of said presence of said finger tip, track movement of said finger within said FOV by processing at least a second one of said images, and generate a command based on said tracked movement of said finger tip within said FOV, and said interface is configured to transmit said detection of said finger, said position of said finger tip, and said command to an external apparatus. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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Specification