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Track smoothing method and navigation device using same

A trajectory smoothing and navigation device technology, applied in the input/output process of data processing, instruments, electrical digital data processing, etc., can solve the problems of high memory cost, limited smoothing effect, and large storage space.

Active Publication Date: 2010-06-16
PIXART IMAGING INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

All in all, the method performs smoothing according to the current coordinates of the pointing device and the previous corrected coordinates, and its smoothing effect is limited
In addition, if you want to use the method to accumulate more previous information in order to obtain a better smoothing effect, you need to consume a lot of storage space to record various information, thus requiring a higher memory cost

Method used

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  • Track smoothing method and navigation device using same
  • Track smoothing method and navigation device using same
  • Track smoothing method and navigation device using same

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Embodiment Construction

[0027] In order to make the above-mentioned and other objects, features and advantages of the present invention more obvious, the following specific embodiments of the present invention are described in detail in conjunction with the accompanying drawings.

[0028] Please refer to figure 1 As shown, it shows a schematic diagram of the application of the navigation device 10 according to the embodiment of the present invention, including the navigation device 10 and the image display 90 . It should be understood that, figure 1 Only elements for explaining the present invention are shown, and other elements are omitted. Embodiments of the navigation device 10 include a mouse and a pointing device. The navigation device 10 is wirelessly or electrically coupled to the image display 90 . The image display 90 is, for example, but not limited to, a television, a projector screen, a computer screen, a game machine screen, etc., for controlling the movement of the cursor or pointing...

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Abstract

The invention relates to a track smoothing method, wherein the latest estimated displacement is processed according to the smoothing displacements which is previously output and is of a preset number; the method comprises the following steps: accumulating the smoothing displacements which is previously output and is a preset number to form an accumulative displacement and record a former smoothing displacement; estimating the latest displacement; forming a digital filter according to the accumulative displacement, the former output smoothing displacement and the latest displacement; processing the latest displacement by the digital filter to generate the latest smoothing displacement; and transmitting the latest smoothing displacement to an image display. The invention further provides a navigation device with smooth track.

Description

technical field [0001] The present invention relates to an image processing method and device, in particular to a trajectory smoothing method and a navigation device using the method. Background technique [0002] Existing interactive image systems have widely used a navigation device, such as a mouse or a pointing device, to estimate the displacement, and the displacement estimated by the navigation device will be transmitted to the image display device. Therefore, the user can relatively control the movement of the cursor or the pointing pointer on the image display device using the navigation device. However, since the displacement estimated and output by the navigation device is a quantized value, if the quantized displacement is not smoothed, the displacement output by the navigation device often exhibits jagged changes. When the user uses the navigation device to perform, for example, a drawing operation, it is difficult to perform the drawing operation according to t...

Claims

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Application Information

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IPC IPC(8): G06F3/038
Inventor 陈信嘉苏宗敏赵子毅
Owner PIXART IMAGING INC
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