发明名称 |
Imaging device and image processing method |
摘要 |
An imaging device includes an image sensor to convert an optical image of a subject into an electric signal, an image processor to generate an image according to the electric signal, an image synthesizer to synthesize, pixel-by-pixel, images generated by the image processor in a same composition under a same condition, a digital clamp processor to perform a digital clamp to remove an offset component from a synthesized image obtained by the image synthesizer, and a digital clamp controller to control a digital clamp amount of the digital clamp processor on the basis of a number of images synthesized by the image synthesizer. |
申请公布号 |
US9444979(B2) |
申请公布日期 |
2016.09.13 |
申请号 |
US201314380832 |
申请日期 |
2013.04.18 |
申请人 |
RICOH COMPANY, LTD. |
发明人 |
Hohjoh Daisuke |
分类号 |
H04N5/361;H04N5/232;H04N5/217;G06T5/00;G06T5/50 |
主分类号 |
H04N5/361 |
代理机构 |
Oblon, McClelland, Maier & Neustadt, L.L.P. |
代理人 |
Oblon, McClelland, Maier & Neustadt, L.L.P. |
主权项 |
1. An imaging device comprising:
an image sensor to convert an optical image of a subject into an electric signal; an image processor to generate an image according to the electric signal; an image synthesizer to synthesize, pixel-by-pixel, images generated by the image processor in a same composition under a same condition; a digital clamp processor to perform a digital clamp to remove an offset component from a synthesized image obtained by the image synthesizer; and a digital clamp controller to adjust a digital clamp amount of the digital clamp processor in correspondence with a number of images synthesized by the image synthesizer, wherein the image synthesizer includes a synthesizer to compare, pixel-by-pixel, on the basis of a brightness value, corresponding coordinates of the images generated in the same composition under the same condition and synthesize the images while replacing a pixel with at least either a pixel having a higher brightness value or a pixel having a lower brightness value. |
地址 |
Tokyo JP |