Image rendering method applied to haptic representation device integrating electrostatic force and air pressure film
A tactile reproduction and image rendering technology, which is applied in the image rendering field of fusion electrostatic force and air pressure film tactile reproduction device, can solve the problem of lack of image tactile reproduction methods
Active Publication Date: 2020-06-26
JILIN UNIV
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[0008] The present invention proposes an image rendering method applied to fusion electrostatic force and air pressure film tactile reproduction device to solve the problem of lack of image tactile reproduction method
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[0074] Such as figure 1 As shown, the tactile reproduction device integrating electrostatic force and air pressure film, the structure includes:
[0075] (1) Positioning unit 11: comprise the device that realizes positioning function, its effect is to read the position coordinates of finger pad on the multimedia terminal screen in real time, and this position coordinate information is sent to touch processing unit;
[0076] (2) Tactile processing unit 12: including a multimedia terminal, its function is to present visual information, and render the visual information to obtain the electrostatic force driving signal amplitude parameter matrix and the vibration driving signal amplitude parameter matrix, and then select the electrostatic force according to the position coordinate information The driving signal amplitude parameter and the vibration driving signal amplitude parameter are sent to the driving unit;
[0077] (3) Drive unit 13: including a signal generator 131, the si...
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The invention relates to an image rendering method applied to a haptic representation device integrating electrostatic force and an air pressure film, and belongs to the field of virtual reality and human-computer interaction. Starting from the contour and texture angles of an image; firstly, a mapping model between tangential tactile feedback force and electrostatic force and air pressure film amplitude and a sensing model between the frequency of the electrostatic force and sensing roughness are established; the change speed is represented according to the gradient information of the contourto present the concavity and convexity, the general trend of the image is represent, and a rendering model between the tangential tactile feedback force and the gradient information of the image contour is establishd; the height information of the texture represents the roughness of the texture surface, and a model between the roughness sensing strength and the height information of the image texture is established, so that the tactile representation of the image contour and the texture is realized, the sense of reality of tactile representation of a visual object is effectively improved, thetactile representation better conforms to the subjective psychological feeling of human beings, and the tactile representation effect is better.
Description
technical field [0001] The invention belongs to the field of virtual reality and human-computer interaction, and in particular relates to an image rendering method applied to a fusion electrostatic force and air pressure film tactile reproduction device. Background technique [0002] The multimedia terminal with tactile reproduction function is a research hotspot in the world in recent years, and has important application prospects in the fields of e-commerce, education and entertainment, and the visually impaired. The multimedia tactile reproduction terminal can allow users to perceive the shape, texture and softness of the displayed object through touch, and push the communication between human beings and the virtual world to a new stage of fusion of hearing, vision and touch, which will generate huge economic benefits. [0003] The tactile reproduction technologies currently applied to mobile terminals mainly include: (1) The tactile reproduction technology based on elect...
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IPC IPC(8): G06F3/01G06F3/044G06T15/20G06T7/40G06T7/13G06T7/90G06T5/00
CPCG06F3/016G06F3/044G06T15/205G06T7/40G06T7/13G06T7/90G06T5/70
Inventor 孙晓颖张晨刘国红孙作为祝双运宋瑞
Owner JILIN UNIV