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Parallax detection apparatus, ranging apparatus and parallax detection method

A detection device and parallax technology, which is applied in the direction of measuring device, line-of-sight measurement, distance measurement, etc., can solve the problem of parallax detection error becoming larger, achieve the effect of reducing the difference, reducing the difference of deformation, and suppressing the error of parallax detection

Inactive Publication Date: 2011-06-29
PANASONIC CORP
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  • Claims
  • Application Information

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Problems solved by technology

In this case, there is a problem that the parallax detection error in stereo ranging becomes large

Method used

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  • Parallax detection apparatus, ranging apparatus and parallax detection method
  • Parallax detection apparatus, ranging apparatus and parallax detection method
  • Parallax detection apparatus, ranging apparatus and parallax detection method

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Embodiment approach 1

[0097] First, the distance measuring system according to Embodiment 1 of the present invention will be described.

[0098] The parallax detection device 3 according to this embodiment corrects the image captured by the camera 2b so that the point image distribution of the second optical system included in the camera 2b is the same as the point image distribution of the first optical system included in the camera 2a. Accordingly, the parallax detection device 3 can improve the accuracy of parallax calculation and distance measurement. However, in this embodiment, the first optical system corresponds to a predetermined optical system, and corresponds to one optical system as a reference among a plurality of optical systems.

[0099] Figure 15A It is a diagram showing the configuration of the distance measuring system according to Embodiment 1 of the present invention. like Figure 15A As shown, the ranging system includes a ranging device 1 and a PSF correction data creating...

Embodiment approach 2

[0172] Next, Embodiment 2 of the present invention will be described.

[0173] The structure of the ranging system involved in this embodiment and Figure 15A The distance measuring system according to the first embodiment is the same, so illustration is omitted. In this embodiment, the internal processing of the PSF correction data creation device 20 and the PSF assimilation unit 5 is different from that of the first embodiment. Therefore, only the processing of the PSF correction data creation device 20 and the PSF assimilation unit 5 will be described below.

[0174] The parallax detection device according to this embodiment corrects the images of all the cameras so that the point image distribution of the optical systems of all the cameras is consistent with the point image distribution of the optical system of the model camera (hereinafter simply referred to as "model camera"). The distribution fps(i, j) is the same. Thus, the parallax detection device can make the poi...

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Abstract

Provided is a parallax detection apparatus (3) capable of reducing parallax detection error, even if a camera with a low lens resolution for the pixel pitch of the imaging device is used. The parallax detection apparatus (3) calculates a parallax generated among a plurality of optical systems, and is provided with a PSF equalizer unit (5) that corrects at least one of a plurality of images obtained from each of the plurality of optical systems, so as to cause a point spread of the plurality of optical systems to be equal to a point spread of a predetermined optical system, and a parallax calculation unit (9) that calculates a parallax generated among the plurality of optical systems using an image corrected by the PSF equalizer unit (5).

Description

technical field [0001] The present invention relates to a parallax detection device and the like for calculating parallax generated between a plurality of optical systems. Background technique [0002] In recent years, there has been an increasing need to measure the distance from a predetermined position to an object or the three-dimensional position of the object with high precision. For example, in the field of view support of automobiles, a method has been proposed in which not only images of surrounding objects captured by a camera mounted on the automobile are displayed, but also the distance between objects measured by a distance measuring device and the automobile is simultaneously displayed. The correct distance information between vehicles can be used to more reliably avoid collisions between the car and surrounding objects. In addition, in order to more faithfully reproduce the immersive feeling of images in mobile phones, televisions, etc., input and output devi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T1/00G01C3/06
CPCG01C3/085G06T7/0022G06T7/97
Inventor 大山一朗
Owner PANASONIC CORP
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