Object detection method, system and stereoscopic vision system

A target detection and target technology, applied in the field of vision, can solve problems such as difficulty in accurately extracting target positions and small imaging, and achieve the effects of improving accuracy, increasing imaging area, and reducing interfering pixels.

Active Publication Date: 2012-04-25
SHENZHEN TAISHAN SPORTS TECH CO LTD
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Problems solved by technology

However, when the existing technology collects images, the lens is adjusted to the focus state. When the target size is small or the distance is long, the imaging is small, which makes it difficult to accurately extract the target position.

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  • Object detection method, system and stereoscopic vision system
  • Object detection method, system and stereoscopic vision system
  • Object detection method, system and stereoscopic vision system

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Embodiment Construction

[0030] The present invention provides a target detection method, system and stereo vision system. In order to make the purpose, technical solution and advantages of the present invention clearer and clearer, the present invention will be further described in detail below with reference to the accompanying drawings and examples.

[0031] Embodiments of the present invention provide a target detection method, system, and stereo vision system, the method comprising: determining a diameter of a diffuse spot of a lens; and adjusting an image distance to a defocused state according to the diameter of the diffuse spot. By adjusting the image distance of the lens, the imaging area of ​​the target is increased, such as Image 6 As shown in , increase the detection range of the target, so that the camera can collect images in the state of diffuse spots, that is, adjust the image distance to the state where the diameter of the diffuse spots exceeds the clear imaging state, as shown in F...

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Abstract

The invention provides an object detection method, a system and a stereoscopic vision system; wherein the method comprises the following steps: determining the diameter of the dispersed spot of a lens; adjusting image distance to a defocusing state according to the diameter of the dispersed spot; adjusting image distance of the lens, increasing imaging area of the object, increasing detection range of the object to facilitate the camera to collect images under the state of dispersed spot; as the dispersed spot facilitates recognition area to rise and pixel to increase, as a result, influence of interfering pixel is reduced, meanwhile, precision of calculated sub-pixel level areal coordinate is improved.

Description

technical field [0001] The invention relates to the field of vision technology, in particular to a target detection method, system and stereo vision system. Background technique [0002] When the lens is in focus, the image is collected for image preprocessing, and then the image is binarized by the threshold segmentation method, and then the target connected domain is extracted by the blob connected domain detection algorithm, and the position of the target in the image is calculated. The position calculation method generally adopts the method of finding the center of gravity. After the position of the center of gravity of the target is obtained, these coordinate information can also be used for subsequent processing such as three-dimensional reconstruction and target tracking. However, when collecting images in the prior art, the lens is adjusted to a focused state. When the target size is small or the distance is long, the imaging is small, which makes it difficult to acc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T7/00H04N5/232
CPCG06T7/0075H04N13/0246G06T7/593H04N13/246
Inventor 师丹玮周琨吴迪
Owner SHENZHEN TAISHAN SPORTS TECH CO LTD
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