Marker detecting device and optical tracking device
A marker detecting device comprising: an image sensor, comprising a plurality of difference sensing regions; and a processing circuit, configured to determine a marker exists when a first difference of pixel value data of images captured by different ones of the difference sensing regions is larger than a marker difference threshold and to determine the marker does not exist when the first difference is smaller than the marker difference threshold.
PixArt Imaging Inc.
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Yueh Mei Joon Chok Keen-Hun
Kim Lee Leong