Touch control apparatus and touch point detection method

A touch control apparatus, comprising:

• a touch pad, receiving contact from at least one object;
• a first edge, a second edge, a third edge and fourth edge forming a rectangle that encircles the touch pad, wherein the first edge is opposite to the second edge, the third edge is opposite to the fourth edge, and the first edge, the second edge, and the third edge are surfaced with geometric textures;
• a first camera, deposited on a corner of the first edge and the fourth edge of the rectangle, having a field of view sufficient to collect a first image including the second edge and third edge;
• a second camera, deposited on a corner of the second edge and the fourth edge of the rectangle, having a field of view sufficient to collect a second image including the first edge and third edge;
• and
• a calculation unit, coupled to the first camera and second camera, performing a characteristic extraction process on the geometric textures of the first and second images to determine whether an object has touched the touch pad, and if so, coordinates thereof are determined, wherein when an object touches the touch pad on a touch point:
• the first camera captures images of the second edge, third edge and the touch point to form the first image;
• the second camera captures images of the second edge, third edge and the touch point to form the second image;
• and
• the first and second images are one dimensional line images.