PALM GESTURE RECOGNITION METHOD AND DEVICE AS WELL AS HUMAN-MACHINE INTERACTION METHOD AND APPARATUS
First Claim
1. An open-or-closed palm gesture recognition method used to recognize an open or closed palm gesture by utilizing image processing, the method comprising:
- an image obtainment step of obtaining plural images according to an order of time;
a palm shape image acquirement step of acquiring plural palm shaped images from the plural images;
a feature extraction step of extracting plural features describing the open or closed palm gesture from each of the plural palm shaped images, wherein, each of the plural features has a monotonic characteristic that values corresponding to this feature obtained during a process between the open palm gesture and the closed palm gesture gradually decrease or increase;
a maximum feature difference vector calculation step of calculating a maximum feature difference vector formed by a maximum difference of each of the plural features, wherein, the maximum difference of the corresponding feature, which has a sign attribute and an width attribute, is calculated by obtaining a difference related to the corresponding features between two of the plural palm shaped images according to a predetermined order, and an absolute value of the maximum difference is a maximum absolute value of a difference related to the corresponding features between any two of the plural palm shaped images; and
an open-or-closed palm gesture determination step of determining, based on the maximum feature difference vector, that there is the open or closed palm gesture or there isn'"'"'t the open or closed palm gesture in the plural images.
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Abstract
Disclosed is a palm gesture recognition method comprising a step of obtaining plural images according to an order of time; a step of acquiring plural palm shaped images from the plural images; a step of extracting plural features describing an open or closed palm gesture from each of the plural palm shaped images; a step of calculating a maximum feature difference vector formed by a maximum difference of each of the plural features; and a step of determining, on the basis of the maximum feature difference vector, that there is the open or closed palm gesture or there isn'"'"'t the open or closed palm gesture in the plural images.
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Citations
10 Claims
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1. An open-or-closed palm gesture recognition method used to recognize an open or closed palm gesture by utilizing image processing, the method comprising:
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an image obtainment step of obtaining plural images according to an order of time; a palm shape image acquirement step of acquiring plural palm shaped images from the plural images; a feature extraction step of extracting plural features describing the open or closed palm gesture from each of the plural palm shaped images, wherein, each of the plural features has a monotonic characteristic that values corresponding to this feature obtained during a process between the open palm gesture and the closed palm gesture gradually decrease or increase; a maximum feature difference vector calculation step of calculating a maximum feature difference vector formed by a maximum difference of each of the plural features, wherein, the maximum difference of the corresponding feature, which has a sign attribute and an width attribute, is calculated by obtaining a difference related to the corresponding features between two of the plural palm shaped images according to a predetermined order, and an absolute value of the maximum difference is a maximum absolute value of a difference related to the corresponding features between any two of the plural palm shaped images; and an open-or-closed palm gesture determination step of determining, based on the maximum feature difference vector, that there is the open or closed palm gesture or there isn'"'"'t the open or closed palm gesture in the plural images. - View Dependent Claims (2, 3, 4, 5, 10)
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6. An open-or-closed palm gesture recognition device configured to recognize an open or closed palm gesture by utilizing image processing, the device comprising:
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an image obtainment part configured to obtain plural images according to an order of time; a palm shape image acquirement part configured to acquire plural palm shaped images from the plural images; a feature extraction part configured to extract plural features describing the open or closed palm gesture from each of the plural palm shaped images, wherein, each of the plural features has a monotonic characteristic that values corresponding to this feature obtained during a process between the open palm gesture and the closed palm gesture gradually decrease or increase; a maximum feature difference vector calculation part configured to calculate a maximum feature difference vector formed by a maximum difference of each of the plural features, wherein, the maximum difference of the corresponding feature, which has a sign attribute and a width attribute, is calculated by obtaining a difference related to the corresponding features between two of the plural palm shaped images according to a predetermined order, and an absolute value of the maximum difference is a maximum absolute value of a difference related to the corresponding features between any two of the plural palm shaped images; and an open-or-closed palm gesture determination part configured to determine, based on the maximum feature difference vector, that there is the open or closed palm gesture or there isn'"'"'t the open or closed palm gesture in the plural images. - View Dependent Claims (7, 8, 9)
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Specification