发明授权
- 专利标题： Liquid droplet recognition apparatus, raindrop recognition apparatus, and on-vehicle monitoring apparatus
- 专利标题（中）： 液滴识别装置，雨滴识别装置和车载监视装置
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申请号： US12693864申请日： 2010-01-26
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公开(公告)号： US08466960B2公开(公告)日： 2013-06-18
- 发明人: Masanori Kobayashi , Hideaki Hirai , Shin Aoki , Shigeru Oouchida
- 申请人： Masanori Kobayashi , Hideaki Hirai , Shin Aoki , Shigeru Oouchida
- 申请人地址： JP Tokyo
- 专利权人： Ricoh Company, Ltd.
- 当前专利权人： Ricoh Company, Ltd.
- 当前专利权人地址： JP Tokyo
- 代理机构： Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- 优先权： JP2009-032161 20090216; JP2009-052761 20090306; JP2009-204319 20090904
- 主分类号： H04N7/18
- IPC分类号： H04N7/18
摘要：
Disclosed is a liquid droplet recognition apparatus for detecting liquid droplets attached to a front surface of a transparent member. The apparatus includes an image pickup apparatus that picks up a vertically polarized light image and a horizontally polarized light image at the front surface of the transparent member from a side of a rear surface of the transparent member; and a signal processing unit that determines whether the liquid droplets are attached to the front surface of the transparent member based on a polarized-light image ratio composed of the vertically polarized light image and the horizontally polarized light image picked up by the image pickup apparatus.