Multi-angle image acquisition device and multi-angle optical characteristic detection equipment

An image acquisition device and optical feature technology, which is applied in image communication, banknote authenticity inspection, color TV parts, etc., can solve the problem that it is difficult to collect high-resolution images, the detection effect is difficult to guarantee, and the processing technology is complicated. and other issues, to achieve the effect of mature production technology, low cost and high acquisition rate

Inactive Publication Date: 2012-07-25
BEIJING NUFRONT SOFTWARE SCI TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] Compared with manual detection, although the current multi-angle optical feature detection scheme saves time and effort and has high efficiency, as mentioned above, the processing technology of CIS is complicated and the cost is high. On the other hand, CIS is also difficult to collect to high-resolution images, which makes it difficult to guarantee the detection effect

Method used

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  • Multi-angle image acquisition device and multi-angle optical characteristic detection equipment
  • Multi-angle image acquisition device and multi-angle optical characteristic detection equipment
  • Multi-angle image acquisition device and multi-angle optical characteristic detection equipment

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Embodiment 1

[0067] figure 1 It is a structural schematic diagram of the first multi-angle image acquisition device in the embodiment of the present invention, which includes: a light source 11, a first camera 12, a second camera 13, a housing 14, a glass plate 15, a position sensor 16, and a control unit 17 and polarizer 18. figure 1 The analyte conveying channel in is marked with 19, the analyte is marked with 20, and the thick solid arrow indicates the conveying direction of the analyte.

[0068] The position sensor 16 is located at the starting end of the conveying direction of the detected object, and sends a signal to the control unit 17 after detecting that the area to be detected on the detected object 20 reaches the detection position. The position sensor 16 has a variety of methods for detecting the position. For example, assuming that the detected object 20 passes through the set distance from entering the detected object conveying channel 19, its area to be detected will reach...

Embodiment 2

[0081] figure 2 It is a schematic structural diagram of the first multi-angle optical feature detection device in the embodiment of the present invention. It can be seen that, figure 2 is in figure 1 An image processing unit 21 is added on the basis, and the image processing unit 21 is connected with the data interface of the first camera 12 and the data interface of the second camera 13, receives the images collected by the first camera 12 and the second camera 13, and compares them, To determine whether there are multi-angle optical features in the area to be detected.

[0082] The second multi-angle image acquisition device provided by the present invention includes at least two image acquisition units, wherein at least one image acquisition device is located on one side of the transport channel of the detected object, and at least one other image acquisition device is located on the transport channel of the detected object On the other side, each image acquisition unit...

Embodiment 3

[0090] image 3 It is a schematic structural diagram of the second multi-angle image acquisition device in the embodiment of the present invention, which includes a first image acquisition unit 31, a second image acquisition unit 32, a third image acquisition unit 33 and a fourth image acquisition unit 34 . image 3 The object to be tested is marked with 35, the conveying channel of the detected object is marked with 36, and the conveying direction of the detected object is perpendicular to the paper surface.

[0091] Figure 4 It is a schematic diagram of the position of the area to be detected on the object to be detected in the embodiment of the present invention. Taking the area to be detected as a color-changing ink area and the object to be detected as RMB as an example, a schematic diagram of the position of the color-changing ink on the RMB is given. For a piece of RMB (for example, the fifth edition of 100 yuan), the color-changing ink is located in the lower left c...

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Abstract

The invention discloses two multi-angle image acquisition devices and two multi-angle optical characteristic detection equipment, cameras are used for acquiring images in a to-be-detected area on a detected object, and then the acquired images are compared to judge if the multi-angle optical characteristics exist in the to-be-detected area. The devices and the equipment disclosed by the invention are low in cost, improve the image acquisition quality and improve the detection effect of the multi-angle optical characteristics.

Description

technical field [0001] The invention belongs to the field of optoelectronic technology, and in particular relates to a multi-angle image acquisition device and multi-angle optical feature detection equipment. Background technique [0002] The multi-angle optical feature means that when light is irradiated from different angles or observed from different angles, different image features can be presented. Since the multi-angle optical features cannot be reproduced by high-definition scanners, color copiers and other equipment, and its design and production technology are extremely professional, the production process is complex, the investment is huge, and it is difficult to imitate, it has been widely used in High-end anti-counterfeiting for banknotes, important bills and trademarks. [0003] At present, the more common multi-angle optical features include optical interference color-changing inks, holographic images and invisible patterns. [0004] Optical interference colo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G07D7/20H04N5/225G07D7/1205
Inventor 万成凯唐辉成和建鲍东山
Owner BEIJING NUFRONT SOFTWARE SCI TECH
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