Adhered substance detection apparatus

Patent metadata

Field	Value
Publication number	US-10991086-B2
Application number	US-201916580470-A
Country	US
Kind code	B2
Filing date	Sep 24, 2019
Priority date	Sep 27, 2018
Publication date	Apr 27, 2021
Grant date	Apr 27, 2021

Abstract

An adhered substance detection apparatus includes an obtaining portion configured to obtain captured image data outputted from an imaging portion, a detection portion configured to detect presence or absence of an adhered substance of each of plural regions of an imaging surface of the imaging portion on the basis of the captured image data, and a judgement portion configured to distinguish a reliable region and an unreliable region from each other, a reliability property of predetermined arithmetic processing performed by a processing apparatus with the use of the captured image data is kept to be equal to or greater than a predetermined value in the reliable region, and the reliability property is less than the predetermined value in the unreliable region.

First claim

The invention claimed is:

1. An adhered substance detection apparatus comprising:
an obtaining portion configured to obtain captured image data outputted from an imaging portion configured to be mounted on a vehicle;
a detection portion configured to detect presence or absence of an adhered substance of each of plural regions of an imaging surface of the imaging portion in a case where the imaging surface is divided into the plural regions, on the basis of the captured image data;
a judgement portion configured to distinguish a reliable region and an unreliable region from each other on the basis of the region in which the adhered substance is detected; and
a display processing portion configured to cause a display apparatus to display the reliable region and the unreliable region in such a manner that the reliable region and the unreliable region are discernible from each other, on the basis of a judgement result of the judgement portion, wherein
in the reliable region, a reliability property of predetermined arithmetic processing performed by a processing apparatus with the use of the captured image data is kept to be equal to or greater than a predetermined value; and
in the unreliable region, the reliability property is less than the predetermined value.

2. The adhered substance detection apparatus according to claim 1 , wherein the detection portion estimates a type of the adhered substance in a case where the detection portion detects the adhered substance.

3. The adhered substance detection apparatus according to claim 1 , wherein the display processing portion is configured to determine a display manner of the adhered substance in the unreliable region.

4. The adhered substance detection apparatus according to claim 1 , wherein the display processing portion is configured to display a notification message corresponding to the unreliable region.

Assignees

• Aisin Seiki

Inventors

• Ueda Koki
• Suzuki Takashi

Classifications

• G06V20/586

  of parking space · CPC title

• G06V20/58

  Recognition of moving objects or obstacles, e.g. vehicles or pedestrians; Recognition of traffic objects, e.g. traffic signs, traffic lights or roads · CPC title

• G06V10/993

  Evaluation of the quality of the acquired pattern · CPC title

• H04N23/635

  Region indicators; Field of view indicators · CPC title

• H04N23/811

  by dust removal, e.g. from surfaces of the image sensor or processing of the image signal output by the electronic image sensor · CPC title