Method for performing three-dimensional model display control by CCD camera
A 3D model and display control technology, which is applied in the input/output of user/computer interaction, mechanical mode conversion, character and pattern recognition, etc., can solve the problem that the rotation and display of the 3D model cannot be separated, so that it is not easy to be stolen, Easy-to-use, wide-ranging effects
Inactive Publication Date: 2010-06-09
SOUTHEAST UNIV
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[0003] The problem to be solved by the present invention is: the rotation display of the existing three-dimensional model is inseparable from the control of the user's hand, which is difficult for people who can't operate a computer or have inconvenient hands, and in the situation that it is inconvenient to use hands. In view of this, the invention provides a method of using the camera to display and control the 3D model, so that the user can replace the mouse operation by moving his face, and rotate the 3D model to any angle in space, which is simple and intuitive
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[0023] The method of the present invention will be described in detail below in conjunction with the accompanying drawings.
[0024] Take the pure background picture frame without people and carry out XOR operation with the picture frame with people, you can get the range of people in the camera picture, and further use the skin color detection method in this range, you can get the face range, skin color detection is generally in In the YCbCr space, if the Cb value of a pixel is between 100 and 127, and the Cr value is between 138 and 170, it is determined that the pixel belongs to the face, so the neck can also be included in the face. In the present invention, the arm with part of the skin exposed can be used instead of the face to detect the skin color and control the display of the three-dimensional model. In this way, the rotation of the three-dimensional model can also be controlled by moving the hand in the air, which enriches the user's control methods.
[0025] First,...
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The invention relates to a method using a camera to control the display of a three-dimensional model, which utilizes the camera to process facial moving images of a user taken with the camera having low cost and belonging to computer peripherals, extracts the facial displacement vector of the user, controls the display of the three-dimensional model according to the displacement vector and rotatesthe three-dimensional models to an angle required by the user. The invention has convenient use, wide application and is not easy to be stolen compared with devices such as a mouse, a keyboard and the like. The method can control the rotation and the size of the three-dimensional model as long as the user slightly moves the face before the camera, manual operation is not needed, and therefore, the invention presents a non-contacting operation mode, and is in line with experience of observing objects in daily life; therefore, the hands of the user can be free to do other things, such as observing while taking notes and the like, thus improving efficiency. Compared with mouse operation, the three-dimensional control model is more convenient and natural.
Description
technical field [0001] The invention belongs to the technical field of multimedia human-computer interaction, and relates to three-dimensional model display control, specifically a method for using a camera to perform three-dimensional model display control. According to the moving image of the user's face captured by the camera, the three-dimensional model is rotated to the angle that the user wants to see , can be used in online product display, 3D model demonstration, file and picture browser, computer operating system interface, virtual reality and other occasions. Background technique [0002] On the websites of some well-known computer and electronic product manufacturers, there are often 3D solid models of their latest products displayed. The viewer can use the mouse to rotate the 3D model and observe different parts of the product. This technology is also very useful for online shopping websites. it works. The current three-dimensional model display method generally...
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IPC IPC(8): G06F3/01G06F3/048G06K9/00
Inventor 陈阳吴乐南
Owner SOUTHEAST UNIV