Method for displaying images of a video measuring instrument

An image measuring instrument and a technology for displaying images, applied in the field of image measuring instruments, can solve the problems of lack of intuition of the image measuring instrument, and achieve the effect of eliminating flickering phenomenon

Active Publication Date: 2015-08-19
东莞市嘉腾仪器仪表有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the problem of the lack of intuitiveness of the image measuring instrument, the present invention provides a method for displaying images of the image measuring instrument

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0015] The present invention will be described in further detail below.

[0016] The image display method of this video measuring instrument uses a TFT color LCD liquid crystal screen, a 400MHz ARM9 processor, a 4MB NorFlash memory, a 256MB NandFlash memory, and a 256MB SDRAM memory. This hardware architecture has a high processing capacity. The speed and relatively large storage capacity are capable of storing a large number of measurement results and can quickly generate graphics; the hardware architecture is also equipped with SD card interface, USB interface and network interface, providing users with a variety of data mobile storage paths.

[0017] Its method steps include:

[0018] 1) Allocate a graphics buffer in the memory as the drawing area.

[0019] 2) Call all the primitives from the list of primitives obtained by the image measuring instrument, calculate the relative position of each primitive and the current raster coordinates, and determine the primitives that ...

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Abstract

The invention discloses a method of displaying an image of an image measurement instrument, and belongs to the filed of the image measurement instrument. The method comprises 1) distributing a graph buffer area in an internal memory to be used as a mapping area, wherein the advantages of using a buffer memory are that graphing is conducted at a back stage in advance, after graphing is completed, the graphing is updated to a liquid crystal display (LCD) to be displayed, and the flare phenomenon in graphing display can be removed; 2) invoking all pixels from a pixel list obtained by the image measurement instrument, calculating the relative positions of each pixel and a current grating coordinate, and confirming the pixels which need to be graphed; 3) sequentially graphing the pixels which need to be graphed to the graph buffer area; and 4) updating data of the graph buffer area to the LCD to form a needed image. The method of displaying the image of the image measurement instrument can achieve the function of displaying graphs.

Description

technical field [0001] The invention relates to a video measuring instrument, in particular to a method for displaying images of a video measuring instrument. Background technique [0002] Image measuring instrument, also known as precision image surveying instrument, overcomes the shortcomings of traditional projectors and is a new type of high-precision, high-tech measuring instrument integrating optical, mechanical, electrical, and computer image technologies. The optical microscope performs high-magnification optical magnification imaging on the object to be measured. After the enlarged object image is sent to the computer through the CCD camera system, it can efficiently detect the contour and surface shape, size, angle and position of various complex workpieces, especially precision Microscopic inspection and quality control of parts. However, the existing image measuring instruments mainly use BCD digital tubes or monochrome LCD liquid crystal screens as display d...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01B11/00
Inventor 彭雄良
Owner 东莞市嘉腾仪器仪表有限公司
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