Identification block and target locating method based on identification block

A technology for target positioning and identifying blocks, applied in the field of visual information processing in the computer industry, can solve problems such as difficulty in achieving fast and accurate positioning, environmental adaptability needs to be improved, and shape settings are not ideal, achieving good real-time performance and environmental applicability. Strong, low-computation effects

Active Publication Date: 2012-06-13
INST OF AUTOMATION CHINESE ACAD OF SCI
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Problems solved by technology

However, in the current target recognition based on marker blocks, the shape setting is not ideal, the algorithm complexity is high

Method used

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  • Identification block and target locating method based on identification block
  • Identification block and target locating method based on identification block
  • Identification block and target locating method based on identification block

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Embodiment Construction

[0022] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in further detail below in conjunction with specific embodiments and with reference to the accompanying drawings. While illustrations of parameters including particular values ​​may be provided herein, it should be understood that parameters need not be exactly equal to the corresponding values, but rather may approximate the values ​​within acceptable error margins or design constraints.

[0023] The invention provides an identification block and a target positioning method based on the identification block. A preset identification block is placed on the target, and the identification and positioning of the target are completed through the identification and positioning of the identification block.

[0024] The designed identification block is as figure 1 As shown, including the circular outer ring of the first saturated color and the...

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Abstract

The invention discloses an identification block and a target locating method based on the identification block. The identification block comprises a circular outer ring and N radial spokes, wherein the circular outer ring is in a first saturated color; the central region of the identification block is encircled by using the circular outer ring; the N radial spokes are in a second saturated color which is different from the first saturated color, are arranged in the central region of the identification block, and are distributed around the central point of the identification block in a central symmetric way; and a part of the radial spokes which are close to a center gradually become thinner from outside to inside. Due to the adoption of the identification block and the target locating method based on the identification block, the values of color differences among image regions and shapes are taken as main identification characteristics, images are not required to be preprocessed, and small calculating amount, high instantaneity, high environmental suitability and accurate positioning are realized.

Description

technical field [0001] The invention relates to the field of visual information processing in the computer industry, in particular to an identification block and a target positioning method based on the identification block. Background technique [0002] In the target recognition and positioning technology of monocular vision, the identification and positioning based on identification blocks have a wide range of applications. At present, most identification blocks are identified by extracting color features, texture features, shape features and combining multiple features. On the basis of recognition, using the prior knowledge about the size and pose of the marker and its information in the image, the spatial position of the marker relative to the visual sensor can be calculated based on the principle of projection geometry. However, in the current target recognition based on marker blocks, the shape setting is not ideal, the algorithm complexity is high, the environmental ...

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Application Information

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IPC IPC(8): G06K9/00G06T7/00
Inventor 刘希龙曹志强周超谭民
Owner INST OF AUTOMATION CHINESE ACAD OF SCI
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