Stereo image-pickup tree measruing instrument and its fully-automatic tree-measuring method

A technology of stereo camera and dendrometer, which is applied in the field of forest resource investigation, can solve the problems of inconvenience, large error, inseparability, etc., and achieve the effect of broad market prospects

Inactive Publication Date: 2006-08-09
RES INST OF FOREST RESOURCE INFORMATION TECHN CHINESE ACADEMY OF FORESTRY +1
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Problems solved by technology

The disadvantage is that it has poor adaptability to various shapes of forest trunks and large errors
Its shortcoming is that it is still inseparable from the aid of the ruler when measuring the distance and dry diameter, which is somewhat inconvenient
[0012] 2. The applica

Method used

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  • Stereo image-pickup tree measruing instrument and its fully-automatic tree-measuring method
  • Stereo image-pickup tree measruing instrument and its fully-automatic tree-measuring method
  • Stereo image-pickup tree measruing instrument and its fully-automatic tree-measuring method

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Example Embodiment

[0084] The specific implementation process is completely carried out under the prompts of the photographic tree-measuring software.

[0085] First find the sample plot and its nearest measurement control point, and enter the geographic coordinates of the control point. Then, using the scaleless ranging and precise positioning data provided by the compass and vertical plate and the binocular camera, a branch wire is quickly laid in the direction of the angle gauge point, and the geographic location coordinates of the angle gauge point are determined and input at the end point. Finally, you can issue the “start” command on the angle gauge point, and input the angle gauge cross-sectional area coefficient Fg according to the actual situation of the forest stand, and the auxiliary high angle α b , Approximate shape point height angle α a , Displayed on the screen.

[0086] During the round-trip test, the two cooperated. One person observes the camera, and the other marks the chest heig...

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Abstract

Present invention discloses a stereo camera shot dendrometer and full automaticity tree measuring method. It combines point sampling tree measuring technology, photoelectric technology, measuring technique, stereovision technology, and computer technology. It can overcomes crown lapped intervisibility difficulty directly surveying volume increment of whole woods through three order camera shot, and obtaining forest sample area highest resolution image data to realize omnirange automatization of forest resources sampling survey. Said stereo camera shot dendrometer can be developed into stereo station instrument, stereo theodolite, magnetic compass without auxiliary reflector and scale.

Description

1. Technical field [0001] The invention relates to an instrument and a method for forest resource investigation, in particular to a stereo camera dendrometer for forest sampling survey and a fully automatic tree measuring method. It is a multidisciplinary combination of square gauge point sampling tree measurement technology, photoelectric technology, stereo vision technology and computer technology. This new and efficient forest sampling survey method can provide a technology for obtaining forest stand survey factors for high-resolution remote sensing images. As part of Digital Forestry (Digita Forestry), the highest resolution image data obtained on the sample plot, together with the space remote sensing image data and aerial photogrammetry image data on the sample plot, form a multi-resolution image database. [0002] It is worth pointing out that the stereo camera dendrometer of the present invention can be developed into a stereo total station, a stereo electronic theodo...

Claims

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Application Information

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IPC IPC(8): G01C11/00G01C11/36
Inventor 李海奎徐祯祥
Owner RES INST OF FOREST RESOURCE INFORMATION TECHN CHINESE ACADEMY OF FORESTRY
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