| 发明名称 |
Image acquisition method and apparatus |
| 摘要 |
An image acquisition method operates in a hand held image acquisition device with a camera. A first image of a scene is obtained with the camera at a nominal exposure level. A number of relatively bright pixels and a number of relatively dark pixels within the first image are determined. Based on the number of relatively bright pixels, a negative exposure adjustment is determined and based on the number of relatively dark pixels, a positive exposure adjustment is determined. Respective images are acquired at the nominal exposure level; with the negative exposure adjustment; and with the positive exposure adjustment as component images for high dynamic range (HDR) image of the scene. |
| 申请公布号 |
US2016309071(A1) |
申请公布日期 |
2016.10.20 |
| 申请号 |
US201615099057 |
申请日期 |
2016.04.14 |
| 申请人 |
FotoNation Limited |
发明人 |
VRANCEANU Ruxandra;CONDOROVICI Razvan G. |
| 分类号 |
H04N5/235;G06T5/20;G06T5/40 |
主分类号 |
H04N5/235 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. An image acquisition method operable in a hand held image acquisition device with a camera comprising:
a) obtaining a first image of a scene with the camera at a nominal exposure level; b) determining a number of relatively bright pixels within said first image; c) determining a number of relatively dark pixels within said first image; d) determining based on said number of relatively bright pixels a negative exposure adjustment; e) determining based on said number of relatively dark pixels a positive exposure adjustment; and f) acquiring respective images at said nominal exposure level; with said negative exposure adjustment; and with said positive exposure adjustment as component images for high dynamic range (HDR) image of the scene. |
| 地址 |
Galway IE |
