Editing N900 VGA camera
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- | + | =Hardware= | |
- | + | The [[Nokia N900|N900]] front camera is a VGA camera from ST microelectronics. | |
- | The [[Nokia N900|N900]] front camera is a | + | |
The [http://www.alldatasheet.com/datasheet-pdf/pdf/206482/STMICROELECTRONICS/VS6555.html datasheet] lists the following specs. | The [http://www.alldatasheet.com/datasheet-pdf/pdf/206482/STMICROELECTRONICS/VS6555.html datasheet] lists the following specs. | ||
- | * Size: 4. | + | * Size: 4.5*4.5*2.5mm |
- | * Resolution: | + | * Resolution: 640*480 |
- | * minimum illumination 7 lux | + | * minimum illumination 7 lux. |
- | * SNR at 100 lux | + | * SNR at 100 lux 34dB |
- | * Field of view: 66 degrees horizontal, 78 degrees diagonal | + | * Field of view: 66 degrees horizontal, 78 degrees diagonal. |
- | This is connected via a multiplexor to the single camera bus on the CPU, along with the main camera. The two cannot be used | + | This is connected via a multiplexor to the single camera bus on the CPU, along with the main camera. The two cannot be used at once. |
- | + | =Software= | |
- | The driver presents the camera as a video4linux device - | + | The driver presents the camera as a video4linux device - /dev/video1. |
This camera had severe performance problems under the original software release. (PR1.0) | This camera had severe performance problems under the original software release. (PR1.0) | ||
- | With | + | With PR1.1, released in January 2010, in very good light, the picture was acceptable. In normal room light, the performance remained lower than would be hoped. |
- | + | ||
- | + | ||
- | + | With the release of PR1.2, this has improved further, being generally adequate. | |
+ | Also, with the release of PR1.2, [http://talk.maemo.org/showthread.php?t=53579&highlight=skype+video Skype Video] began to work, using the VGA camera. | ||
+ | Little other software uses the front camera - [http://maemo.org/downloads/product/Maemo5/mirror/ mirror] provides a real-time image of what the camera is showing, and [http://maemo.org/packages/view/mplayer/ mplayer] can also use the camera as a video4linux device. | ||
[[Category:N900]] | [[Category:N900]] | ||
[[Category:N900 Hardware]] | [[Category:N900 Hardware]] |
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