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Imaging device

A technology of camera device and camera pixel, applied in image communication, signal generator with a single pickup device, signal generator with multiple pickup devices, etc., can solve the problems of pixel deviation, color deviation, etc.

Pending Publication Date: 2021-08-06
JAI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At this time, the image acquired by the image processing device through the linear sensor may sometimes have pixel deviation or color deviation, etc.

Method used

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Experimental program
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no. 1 approach

[0035]

[0036] figure 1 A hardware block diagram of the imaging device 100 according to the first embodiment of the present invention is shown. figure 1 is a hardware block diagram of the imaging device 100 according to the first embodiment of the present invention.

[0037] [structure]

[0038] The imaging device 100 of the first embodiment includes a sensor 10 , an imaging unit 20 , a processing circuit 30 , a storage circuit 40 , an input circuit 50 , a display 60 , an image storage circuit 70 , and an internal bus 80 .

[0039] The sensor 10 has a function of acquiring speed information related to the speed of the moving body. Here, the mobile object refers to, for example, an object placed on a belt conveyor installed in a production factory or an assembly factory. Such an object can be regarded as a moving object by being conveyed by a belt conveyor. The sensor 10 can be formed, for example, by a rotary encoder. In the case where the sensor 10 is constituted by a...

no. 2 approach

[0106]

[0107]An imaging device according to a second embodiment of the present invention is an imaging device in which a trigger signal generation unit generates a trigger signal based on a change in speed information, compared to the imaging device of the first embodiment. In the imaging device according to the second embodiment, when the speed information acquired from the sensor is faster than the first threshold value, the trigger signal generation unit generates a trigger signal by frequency-dividing the start time of starting to photograph the moving object, and When the acquired speed information is slower than the second threshold, the trigger signal is generated by multiplying the start time at which imaging of the moving object is started.

[0108] According to the imaging device according to the second embodiment of the present invention, the trigger signal generation unit 31 can generate the trigger signal TRG based on the change of the speed information, so the...

no. 3 approach

[0116]

[0117] The imaging device according to the third embodiment of the present invention is an imaging device in which the pixel correcting unit calculates the two or more linear sensors calculated by the calculating unit until the imaging device of the first embodiment starts imaging the moving object. The time is converted into the distance of the imaging pixels of the moving object, and the position of the imaging pixels of the moving object is corrected so that the imaging pixels of the moving object are consistent.

[0118] For example, as in image 3 As described in , the imaging device according to the third embodiment of the present invention converts the time between the linear sensor R, the linear sensor G, and the linear sensor B calculated by the calculation unit 32 to start capturing images of the moving object into the number of imaging pixels of the moving object distance. Furthermore, the imaging device of the third embodiment corrects the positions of ...

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PUM

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Abstract

Provided is an imaging device that can calculate the deviation of captured pixels and generate a high-accuracy captured image, regardless of imaging timing. The imaging device comprises a sensor that acquires the speed information about the speed of a moving body; a trigger signal generation part that acquires the speed information from the sensor and generates a trigger signal that indicates a start time for capturing images of the moving body; an imaging part that, on the basis of the trigger signal, uses each of at least two line sensors that are arranged along the movement direction of the moving body to capture an image of the moving body; a calculation part that calculates the times from when the trigger signal arises until each of the line sensors starts capturing an image of the moving body and / or one or more inter-line-sensor distances; and a pixel correction part that, on the basis of each of the times and the one or more distances calculated by the calculation part, performs correction such that pixels of the images captured of the moving body by the line sensors coincide.

Description

technical field [0001] The present invention relates to an imaging device, and particularly relates to the technology of an imaging device that images a moving object and corrects pixel deviation. Background technique [0002] In recent years, image processing devices that acquire images and correct the acquired images have been developed. For example, some image processing devices are equipped with a linear sensor and acquire images using the linear sensor. [0003] In this case, pixel deviation, color deviation, etc. may occur in the image acquired by the image processing device through the linear sensor. Therefore, for example, an image processing device that corrects an acquired image according to predetermined conditions has been proposed (see Patent Document 1). [0004] Also disclosed is an apparatus in which a linear sensor is placed on a moving body, and the object to be inspected is imaged by the linear sensor while the moving body is moving. This device constit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N9/09H04N23/13H04N23/12
CPCG06T1/00H04N25/70H04N23/13H04N23/12
Inventor 渡部雅夫田岛芳雄胜又徹高野光司高桥信一黑泷俊辅高桥宏明
Owner JAI