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Exposure control device and exposure control method

A technology of exposure control and both sides, applied in the direction of exposure control, measuring device, photometry, etc., can solve the problems of passenger discomfort, flickering of display screen, etc.

Active Publication Date: 2022-04-08
DENSO CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the exposure control oscillates in the on-vehicle monitor device, flickering may occur on the display screen, causing discomfort to passengers

Method used

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  • Exposure control device and exposure control method
  • Exposure control device and exposure control method
  • Exposure control device and exposure control method

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Experimental program
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Embodiment approach

[0027] Hereinafter, embodiment will be described based on drawings. In addition, if various modified examples applicable to this embodiment are inserted in the middle of a series of descriptions related to one embodiment, the understanding of the embodiment may be hindered, so the description of each embodiment is collectively described after the description of the embodiment. Variations.

[0028] (overall composition)

[0029] First, refer to figure 1 , a schematic configuration of a vehicle-mounted monitor device 1 , which is a specific example of an application object of the exposure control device of the present disclosure, will be described. In addition, the vehicle on which the vehicle-mounted monitor device 1 is mounted is called an "own vehicle" hereinafter.

[0030] In the present embodiment, the on-vehicle monitor device 1 is a so-called electronic mirror device, and is configured to display images of the surroundings of the own vehicle captured by the on-vehicle ...

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Abstract

An exposure control device (10) of a vehicle-mounted camera (2) includes an illumination level determination unit (11), a plurality of timers (13), a timer operation unit (12), and an exposure level determination unit (15). The illuminance level determination unit determines which of a plurality of illuminance levels the external light illuminance is. A timer (13) is set correspondingly to each of the multiple changing ways between multiple illumination levels or between multiple exposure levels in the vehicle-mounted camera. The timer operation unit operates each of the plurality of timers in accordance with the change state of the illuminance level. The exposure level determination unit determines the exposure level of the vehicle-mounted camera based on the count status of each of the plurality of timers.

Description

[0001] Cross References to Related Applications [0002] This application is based on Japanese Patent Application No. 2018-56444 filed on March 23, 2018, and the contents thereof are incorporated herein by reference. technical field [0003] The present disclosure relates to an exposure control device and an exposure control method of a vehicle-mounted camera. Background technique [0004] As such a device, there is known a device that detects the illuminance of external light, that is, the illuminance around the vehicle, and controls exposure based on the detection result (for example, refer to Patent Document 1, etc.). [0005] Patent Document 1: Japanese Unexamined Patent Publication No. 2005-167842 [0006] For example, when a vehicle enters a tunnel or under a viaduct, the external light illuminance changes with a large amount of change and in small steps. In such a case, in such a conventional device, there is a possibility that the exposure control of the vehicle-mo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N5/235G03B7/28G03B15/00H04N7/18
CPCG03B7/28H04N7/18H04N23/74B60R2300/105H04N23/73
Inventor 尾崎恭平长谷川太一杉原邦泰浅井五朗饭田智阳
Owner DENSO CORP