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Image acquisition method

An image acquisition and image technology, which is applied in image analysis, image communication, image data processing, etc., can solve problems such as inability to obtain complete and clear images, and the complexity of collecting images of target objects

Inactive Publication Date: 2019-12-20
翌视智能科技(上海)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

such adjustment steps complicate the acquisition of images of the target object
[0003] Although the current camera has an automatic zoom function, due to the limitation of the depth of field of the camera itself, especially in macro photography, the camera cannot obtain a complete and clear image of the object surface with a certain length through adjustment operations such as automatic zoom

Method used

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Embodiment Construction

[0030] Clear imaging surface P

[0031] For an image acquisition device, such as a camera, video camera, scanner, etc., it can be known from optical principles that if the physical conditions such as the type and position of optical and electronic components in the image acquisition device are not changed, the distance and range that the camera can clearly image are often fixed. of.

[0032] Such as Figures 1A-1C As shown, the area that can be clearly photographed by the camera 101 is defined as the clear imaging plane P. Generally speaking, the shape of the clear imaging surface P depends on the hardware of the camera 101, especially the shape of the image sensor, Figures 1A-1C The example in FIG. 2 is drawn as a rectangle for illustration only, in fact, the clear imaging surface P can be in any shape. The size of the clear imaging plane P and its distance and angle from the camera 101 are determined by the relative relationship between the lens and the image sensor.

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Abstract

The invention discloses an image acquisition method. The method comprises the following steps: driving a camera or / and a target object to generate relative motion so that a to-be-photographed part ofthe target object can appear in a clear imaging surface of the camera in a time-sharing manner; acquiring an image of a target object; and processing an image shot by the camera to identify a part where the clear imaging surface of the camera coincides with the surface of the target object. The image acquisition system and method provided by the invention have the beneficial effects that a clear image of the surface of the target object can still be obtained without adjusting the spatial position of the to-be-measured object / camera in advance.

Description

technical field [0001] The invention relates to an image acquisition system and method. Background technique [0002] When collecting images of target objects through image acquisition devices such as cameras and video cameras, it is often necessary to adjust the focal length, aperture and other parameters of the camera or video camera or the relative relationship between the camera, video camera and the target object, such as the direction and distance, according to the optical imaging relationship. Such adjustment steps greatly complicate the acquisition of images of the target object. [0003] Although the current camera has an automatic zoom function, due to the limitation of the depth of field of the camera itself, especially in macro photography, the camera cannot obtain a complete and clear image of the object surface with a certain length through adjustment operations such as automatic zoom. Contents of the invention [0004] An image acquisition method, comprisin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/225H04N5/232H04N5/265G01N21/89G01N21/896G06T7/00G06T7/13G01N21/88
CPCG01N21/8851G01N21/8903G01N2021/8887
Inventor 张磊王玉国王天雄童磊孙叠
Owner 翌视智能科技(上海)有限公司