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Image acquisition and processing device and image acquisition and processing method

A technology of image acquisition and processing equipment, applied in the field of image acquisition and processing equipment, to achieve the effect of accurate splicing, high stability and uniform distribution in a large range

Pending Publication Date: 2019-01-11
朱炳强
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0018] In view of the different problems existing in the existing measurement methods, in order to solve the problems existing in the prior art, an embodiment of the present invention proposes an image acquisition and processing device and an image acquisition and processing method

Method used

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  • Image acquisition and processing device and image acquisition and processing method

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no. 1 example

[0083] The first embodiment of the present invention provides an image acquisition and processing device, which is used to acquire and stitch multiple partial images of a photographed object. Figure 4 The image acquisition and processing device according to the first embodiment of the present invention is shown, and the image acquisition and processing device may include the following elements:

[0084] The imaging camera 10, the reference body 20, the positioning camera 30, and the processing unit 40.

[0085] The imaging camera 10 may be a photographing device including a camera, an image sensor, a shutter, etc., and is used to photograph the photographed object 100 to obtain multiple partial images of the photographed object 100. It is worth noting that the aforementioned imaging camera 10 can generally refer to all image acquisition devices composed of an image sensor, a lens, a light source, a fixed connection structure and other auxiliary imaging modules, and is not limited t...

no. 2 example

[0122] The second embodiment of the present invention provides an image acquisition and processing method, Image 6 Shown is a flow chart of the image acquisition and processing method. The method proposed in this embodiment can be understood as a global positioning method, which may include the following steps, for example:

[0123] S301: Obtain a global image P of the reference body ref ;

[0124] In this step, the processing unit 40 or its connected storage unit acquires or pre-stores the global image P of the reference body 20 ref .

[0125] S302. Acquire the partial image P[i] of the subject and the partial image P of the reference object during the i-th shooting ref [i].

[0126] In this step, the processing unit 40 can acquire the partial image P[i] of the subject and the partial image P of the reference object during the i-th shooting. ref [i].

[0127] S303. From the global image P ref Search the partial image of the reference body in P ref [i] position, get the global im...

no. 3 example

[0139] The third embodiment of the present invention provides an image acquisition and processing method, Figure 7 Shown is a flowchart of the image acquisition and processing method. The method proposed in this embodiment can be understood as a relative positioning method. In this method, the processing unit 40 may not store the global image P of the reference body 20. ref . The method proposed in this embodiment may include the following steps, for example:

[0140] S401: Obtain a partial image P[i] of the photographed object and a partial image P of the reference object during the i-th shooting. ref [i].

[0141] S402: Obtain the partial image P[j] of the photographed object and the partial image P of the reference object during the jth shooting. ref [j], partial image P ref [j] and partial image P ref There is some overlap between [i].

[0142] S403: The processing unit searches for images in the overlapping area respectively in the image P ref [i] and image P ref For th...

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Abstract

An image acquisition and processing device and method are used for acquiring a plurality of local images of a photographed object and stitching the local images. The device includes an imaging camerafor photographing a plurality of local images of the photographed object; a reference body provided with a positioning mark, wherein the reference body is at least one and is relatively fixed with theimaging camera; a positioning camera fixed relative to the object to be photographed, for photographing the reference body and obtaining a positioning image including at least a part of positioning marks; and a processing unit for splicing a plurality of partial images captured by the imaging camera according to the plurality of positioning images captured by the positioning camera. The inventionrealizes the positioning in image mosaic with a simple structure.

Description

Technical field [0001] The invention relates to the field of image acquisition, in particular to an image acquisition and processing device and an image acquisition and processing method. Background technique [0002] There is a demand for large-scale high-resolution imaging in applications such as machine vision and industrial inspection. The field of view and resolution (including the optical resolution and the actual size of a single pixel) captured by the camera are contradictory indicators. For example, in the appearance inspection of the wafer surface in the semiconductor manufacturing process, a high-definition inspection with a resolution of 1um on a 300mm diameter wafer is required. If a 2K pixel camera is used, the size of a single picture is only 2mm, which cannot cover the imaging range of 300mm. [0003] Using multiple images taken at different positions can be stitched together to obtain a larger range of imaging, but it is necessary to know the spatial displacement ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/20G06T5/50H04N5/04H04N5/232
CPCH04N5/04G06T5/50G06V10/12G06V10/22H04N23/80
Inventor 朱炳强
Owner 朱炳强
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