Method and pixel array for detecting motion information

1. A method for detecting motion information, comprising:

providing a pixel array; wherein the pixel array includes a plurality of invisible image sensing pixels and a plurality of visible image sensing pixels, so as to detect an image of a measured object located in a first distance range or in a second distance range;

conducting an image detection within the first distance range by using the plurality of invisible image sensing pixels to output a plurality of invisible images;

conducting the image detection within the second distance range by using the plurality of visible image sensing pixels to output a plurality of visible images, wherein the plurality of invisible images is arranged into odd-numbered images listed in first, third, fifth, . . . , and n−1, and the plurality of visible images are arranged into even-numbered images listed in second, fourth, sixth, . . . , and n, wherein n is a positive integer; and

using a processing unit to analyze the plurality of invisible images and the plurality of visible images, so as to obtain a motion information of the measured object,

wherein a light source is provided to the plurality of invisible image sensing pixels in the step of conducting the image detection within the first distance range, and the light source is not provided to the plurality of visible image sensing pixels in the step of conducting the image detection within the second distance range, and

wherein the step of conducting the image detection in which the light source is provided to the plurality of invisible image sensing pixels within the first distance range and the step of conducting the image detection in which the light source is not provided to the plurality of visible image sensing pixels within the second distance range are simultaneously conducted.

2. The method for detecting motion information as claimed in claim 1 , wherein the step of using the processing unit to analyze the plurality of invisible images and the plurality of visible images further comprises:

determining the image of the measured object in the plurality of invisible images and the plurality of visible images;

using a first algorithmic unit of the processing unit to analyze the plurality of invisible images if the image of the measured object is in the plurality of invisible images, so as to obtain the motion information of the measured object; and

using a second algorithmic unit of the processing unit to analyze the plurality of visible images if the image of the measured object is in the plurality of visible images, so as to obtain the motion information of the measured object.

3. The method for detecting motion information as claimed in claim 1 , wherein the step of conducting the image detection in which the light source is provided to the plurality of invisible image sensing pixels within the first distance range further comprising:

detecting an image gravity center of the measured object using the processing unit when the measured object is located in the first distance range; and

tracing the image gravity center of the measured object using the plurality of invisible image sensing pixels when the measured object is moving in the first distance range, so as to obtain a moving track.

4. The method for detecting motion information as claimed in claim 1 , wherein the plurality of invisible images and the plurality of visible images are alternatively obtained by the plurality of invisible image sensing pixels and the plurality of visible image sensing pixels.

5. The method for detecting motion information as claimed in claim 1 , wherein the light source is an infrared light or a far-infrared light.

6. A method for detecting motion information, comprising:

providing a pixel array; wherein the pixel array includes a plurality of invisible image sensing pixels and a plurality of visible image sensing pixels, so as to detect an image of a measured object located in a first distance range or in a second distance range;

conducting an image detection within the first distance range by using the plurality of invisible image sensing pixels to output a plurality of invisible images;

conducting the image detection within the second distance range by using the plurality of visible image sensing pixels to output a plurality of visible images, wherein the first distance range is between 0 cm to 15 cm, and the second distance range is between 15 cm to 100 cm; and

using a processing unit to analyze the plurality of invisible images and the plurality of visible images, so as to obtain a motion information of the measured object.

7. The method for detecting motion information as claimed in claim 6 , wherein an image information is outputted by the processing unit depending on a data detected by the plurality of visible image sensing pixels under a first mode, and an object moving information is outputted by the processing unit depending on the data detected by the plurality of invisible image sensing pixels under a second mode.

8. A pixel array for detecting motion information, comprising:

a plurality of invisible image sensing pixels and a plurality of visible image sensing pixels for detecting an image of a measured object located in a first distance range or in a second distance range;

wherein an image detection within the first distance range is conducted by the plurality of invisible image sensing pixels to output a plurality of invisible images;

wherein the image detection within the second distance range is conducted by the plurality of visible image sensing pixels to output a plurality of visible images, wherein the plurality of invisible images and the plurality of visible images are alternatively obtained by the plurality of invisible image sensing pixels and the plurality of visible image sensing pixels;

wherein the plurality of invisible images is arranged into odd-numbered images listed in first, third, fifth, . . . , and n−1, and the plurality of visible images is arranged into even-numbered images listed in second, fourth, sixth, . . . , and n, wherein n is a positive integer; and

wherein a first algorithmic unit and a second algorithmic unit of a processing unit are respectively used to analyze the plurality of invisible images and the plurality of visible images, so as to obtain a motion information of the measured object.

9. A pixel array for detecting motion information, comprising:

a plurality of invisible image sensing pixels and a plurality of visible image sensing pixels for detecting an image of a measured object located in a first distance range or in a second distance range;

wherein an image detection within the first distance range is conducted by the plurality of invisible image sensing pixels to output a plurality of invisible images;

wherein the image detection within the second distance range is conducted by the plurality of visible image sensing pixels to output a plurality of visible images;

wherein a first algorithmic unit and a second algorithmic unit of a processing unit are respectively used to analyze the plurality of invisible images and the plurality of visible images, so as to obtain a motion information of the measured object; and

wherein the first distance range is between 0 cm to 15 cm, and the second distance range is between 15 cm to 100 cm.

10. The pixel array for detecting motion information as claimed in claim 9 , wherein an image information is outputted by the processing unit depending on a data detected by the plurality of visible image sensing pixels under a first mode, and an object moving information is outputted by the processing unit depending on the data detected by the plurality of invisible image sensing pixels under a second mode.

11. The pixel array for detecting motion information as claimed in claim 9 , wherein a light source is provided to the plurality of invisible image sensing pixels within the first distance range, and the light source is an infrared light or a far-infrared light.