Detection system
AssigneePixart Imaging Inc.
InventorsChung-Yuo Wu, Yu-Hao Huang
Life of this patent
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Abstract
A detection system including a light source, an image sensor and a processor is provided. The light source is configured to illuminate an object. The image sensor is configured to output a picture. The processor is configured to generate an IR picture and a color picture according to the picture captured by the image sensor, identify a skin-color object in the color picture and determine an object image in the IR picture according to the skin-color object.
Claims19
A detection system configured to detect an object, the detection system comprising:
- a light source configured to illuminate the object;
- an image sensor comprising a sensor array having both infrared pixels and color pixels, the image sensor configured to output a picture;
- and
- a processor configured to
- generate an IR picture and a color picture according to the picture received from the image sensor, wherein the IR picture contains an IR object image and the color picture contains a color object image which corresponds to the IR object image in the IR picture,
- identify a skin-color object from the color object image in the color picture, and
- determine an object image from the IR object image in the IR picture using the identified skin-color object by comparing the identified skin-color object and the IR object image in the IR picture to remove an interference image, which does not correspond to the skin-color object of the color object image, from the IR object image.
A gesture recognition method adapted to a detection system, the detection system comprising an image sensor, which comprises a sensor array having both infrared pixels and color pixels, and a light source configured to illuminate an object, the gesture recognition method comprising:
- outputting a picture with the image sensor;
- generating an IR picture and a color picture according to the picture, wherein the IR picture contains an IR object image and the color picture contains a color object image which corresponds to the IR object image in the IR picture;
- identifying an object shape of the IR object image in the IR picture;
- identifying a skin-color object from the color object image in the color picture when the object shape is not a predetermined shape;
- filtering the IR picture with the identified skin-color object by comparing the identified skin-color object and the IR object image in the IR picture to remove an interference image, which does not correspond to the skin-color object of the color object image, from the IR object image and generate a filtered IR picture;
- and
- performing gesture recognition according to the filtered IR picture.
A detection system configured to detect an object, the detection system comprising:
- an image sensor comprising both of a plurality of infrared pixels and a plurality of color pixels, and configured to capture picture information of the object;
- and
- a processor configured to
- separate the picture information from the plurality of infrared pixels and the plurality of color pixels, wherein the picture information from the infrared pixels contains an JR object image and the picture information from the color pixels contains a color object image which corresponds to the IR object image in the picture information from the infrared pixels,
- indicate skin-color pixels among the color object image,
- determine an object image from the IR object image in the picture information from the infrared pixels by comparing the indicated skin-color pixels and the JR object image to remove an interference image, which does not correspond to the skin-color pixels of the color object image, from the IR object image, and
- identify an object motion according to the determined object image in the picture information from the plurality of infrared pixels.
Dependencies are inferred from the claim text.