Image processing device, operation supporting device, and operation supporting system

Abstract

Provided is an image processing device having a camera (11), an image recognition unit (12) for recognizing the density of an image from the camera, and an exposure value control unit (13) for controlling an exposure value based on the recognition result of the image recognition unit, the exposure value control The unit (13) inserts a period of imaging with the maximum exposure value and the minimum exposure value in the imaging of the normal exposure value based on the automatic control exposure value, and the image recognition unit (12) judges the camera (11) according to the recognition result. ) is abnormal or the environment is not suitable for shooting. In this way, it is possible to judge in a short time whether the reason for capturing an image that cannot be image-processed is abnormality in the camera or the environment is not suitable for imaging.

Description

technical field

[0001] The present invention relates to an image processing device, a driving assistance device, and a driving assistance system, and particularly relates to a device capable of judging in a short period of time whether an image that cannot be processed is caused by an abnormality in an imaging device or an environment that is not suitable for imaging An image processing device, a driving support device and a driving support system using the image processing device. Background technique

[0002] In recent years, technologies are being developed to capture various information related to vehicle driving, prevent vehicle accidents, and assist vehicle driving and parking. Various information related to vehicle travel is obtained by installing an imaging device such as a camera in a vehicle, and the images captured by the camera are calculated and processed to obtain information for preventing vehicle accidents. When a camera is installed in a vehicle such as an ...

Examples

Embodiment 1

[0099] First, the schematic configuration of the image processing device in the first embodiment will be described. figure 1 A schematic configuration diagram showing an image processing apparatus according to Embodiment 1 of the present invention. Such as figure 1 As shown, the exposure value control unit 13 performs control with a normal exposure value, a maximum exposure value, and a minimum exposure value according to a given cycle of preset exposure values ​​of the camera 11 . The exposure value here is determined by the exposure time. When the exposure time is long, the exposure value increases, and when the exposure time is short, the exposure value decreases. The exposure time is determined by the shutter speed and can be controlled in steps. For example, stepwise control the shutter speed at 1 / 60 second, 1 / 120 second, 1 / 240 second. Therefore, the exposure value is also controlled stepwise. In addition, the exposure value can also be controlled by the aperture. ...

Embodiment 2

[0174] In the second embodiment, the configuration when the image processing device according to the present invention is incorporated into the driving support system will be described. First, in Example 1, the three exposure values ​​of the normal exposure value, the maximum exposure value, and the minimum exposure value are switched at a given cycle, but in this Example 2, switching between the maximum exposure value and the minimum exposure value can be variably controlled. Timing and interval of values.

[0175] The configuration of the image processing device 2 related to the second embodiment is as follows: Figure 10 shown. Such as Figure 10 As shown, the image processing device 2 includes a failure determination timing changing unit 21 inside. The failure determination timing changing unit 21 receives an external control signal to control the operation of the exposure value control unit 23 , that is, the switching operation of the normal exposure value, the maximum...

technical field

[0001] The present invention relates to an image processing device, a driving assistance device, and a driving assistance system, and particularly relates to a device capable of judging in a short period of time whether an image that cannot be processed is caused by an abnormality in an imaging device or an environment that is not suitable for imaging An image processing device, a driving support device and a driving support system using the image processing device. Background technique

[0002] In recent years, technologies are being developed to capture various information related to vehicle driving, prevent vehicle accidents, and assist vehicle driving and parking. Various information related to vehicle travel is obtained by installing an imaging device such as a camera in a vehicle, and the images captured by the camera are calculated and processed to obtain information for preventing vehicle accidents. When a camera is installed in a vehicle such as an ...

Examples

Embodiment 1

[0099] First, the schematic configuration of the image processing device in the first embodiment will be described. figure 1 A schematic configuration diagram showing an image processing apparatus according to Embodiment 1 of the present invention. Such as figure 1 As shown, the exposure value control unit 13 performs control with a normal exposure value, a maximum exposure value, and a minimum exposure value according to a given cycle of preset exposure values ​​of the camera 11 . The exposure value here is determined by the exposure time. When the exposure time is long, the exposure value increases, and when the exposure time is short, the exposure value decreases. The exposure time is determined by the shutter speed and can be controlled in steps. For example, stepwise control the shutter speed at 1 / 60 second, 1 / 120 second, 1 / 240 second. Therefore, the exposure value is also controlled stepwise. In addition, the exposure value can also be controlled by the aperture. ...

Embodiment 2

[0174] In the second embodiment, the configuration when the image processing device according to the present invention is incorporated into the driving support system will be described. First, in Example 1, the three exposure values ​​of the normal exposure value, the maximum exposure value, and the minimum exposure value are switched at a given cycle, but in this Example 2, switching between the maximum exposure value and the minimum exposure value can be variably controlled. Timing and interval of values.

[0175] The configuration of the image processing device 2 related to the second embodiment is as follows: Figure 10 shown. Such as Figure 10 As shown, the image processing device 2 includes a failure determination timing changing unit 21 inside. The failure determination timing changing unit 21 receives an external control signal to control the operation of the exposure value control unit 23 , that is, the switching operation of the normal exposure value, the maximum...

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