SwisTrack/Components/InputCamera1394
Description
editThis component allows you to grab image from firewire cameras using the CMU driver. The output images are grayscale or color (RGB) images. As the CMU driver does only exist for Windows, this component is not cross platform.
Input
editA firewire (1394A or 1394B) camera.
Output
edit
A grayscale or color (RGB) image.
Parameters
editCamera Number
editAllows you to select the camera if there are multiple firewire cameras connected.
Video Format and Mode
editVideo Format (0..2) and Mode (0..7) allow you to select the desired input type from the camera. Beware that a conversion is automatically done to output only grayscale or RGB images. Thus, YUV format are not really interesting, except if it allows for an increased camera frame rate.
The following table describes the different modes and formats. To check the available input types of you camera, you can use the 1394CameraDemo.exe that is shipped with the CMU driver, or check the camera datasheet.
| Offset | Name | Field | Bit | Description |
| 180h | V_MODE_INQ_0 | Mode_0 | [0] | 160 X 120 YUV(4:4:4) Mode (24bit/pixel) |
| (Format_0) | Mode_1 | [1] | 320 X 240 YUV(4:2:2) Mode (16bit/pixel) | |
| Mode_2 | [2] | 640 X 480 YUV(4:1:1) Mode (12bit/pixel) | ||
| Mode_3 | [3] | 640 X 480 YUV(4:2:2) Mode (16bit/pixel) | ||
| Mode_4 | [4] | 640 X 480 RGB Mode (24bit/pixel) | ||
| Mode_5 | [5] | 640 X 480 Y (Mono) Mode (8bit/pixel) | ||
| Mode_6 | [6] | 640 X 480 Y (Mono16) Mode (16bit/pixel) | ||
| Mode_x | [7] | Reserved for another Mode | ||
| - | [8..31] | Reserved | ||
| 184h | V_MODE_INQ_1 | Mode_0 | [0] | 800 X 600 YUV(4:2:2) Mode (16bit/pixel) |
| (Format_1) | Mode_1 | [1] | 800 X 600 RGB Mode (24bit/pixel) | |
| Mode_2 | [2] | 800 X 600 Y (Mono) Mode (8bit/pixel) | ||
| Mode_3 | [3] | 1024 X 768 YUV(4:2:2) Mode (16bit/pixel) | ||
| Mode_4 | [4] | 1024 X 768 RGB Mode (24bit/pixel) | ||
| Mode_5 | [5] | 1024 X 768 Y (Mono) Mode (8bit/pixel) | ||
| Mode_6 | [6] | 800 X 600 Y (Mono16) Mode (16bit/pixel) | ||
| Mode_7 | [7] | 1024 X 768 Y (Mono16) Mode (16bit/pixel) | ||
| - | [8..31] | Reserved | ||
| 188h | V_MODE_INQ_2 | Mode_0 | [0] | 1280 X 960 YUV(4:2:2) Mode (16bit/pixel) |
| (Format_2) | Mode_1 | [1] | 1280 X 960 RGB Mode (24bit/pixel) | |
| Mode_2 | [2] | 1280 X 960 Y (Mono) Mode (8bit/pixel) | ||
| Mode_3 | [3] | 1600 X 1200 YUV(4:2:2) Mode (16bit/pixel) | ||
| Mode_4 | [4] | 1600 X 1200 RGB Mode (24bit/pixel) | ||
| Mode_5 | [5] | 1600 X 1200 Y (Mono) Mode (8bit/pixel) | ||
| Mode_6 | [6] | 1280 X 960 Y (Mono16) Mode (16bit/pixel) | ||
| Mode_7 | [7] | 1600X 1200 Y (Mono16) Mode (16bit/pixel) | ||
| - | [8..31] | Reserved | ||
| 18ch | ||||
| ... | Reserved for other V_MODE_INQ_x for Format_x. | |||
| 197h | ||||
| 198h | V_MODE_INQ_6 | Mode_0 | [0] | Exif format |
| (Format_6) | Mode_x | [1...7] | Reserved for another Mode | |
| - | [8..31] | Reserved | ||
| 19ch | V_MODE_INQ_7 | Mode_0 | [0] | Format_7 Mode_0 |
| (Format_7) | Mode_1 | [1] | Format_7 Mode_1 | |
| Mode_2 | [2] | Format_7 Mode_2 | ||
| Mode_3 | [3] | Format_7 Mode_3 | ||
| Mode_4 | [4] | Format_7 Mode_4 | ||
| Mode_5 | [5] | Format_7 Mode_5 | ||
| Mode_6 | [6] | Format_7 Mode_6 | ||
| Mode_7 | [7] | Format_7 Mode_7 | ||
| - | [8..31] | Reserved |
Frame Rate
editSelect the camera frame rate: 1.875 fps (0), 3.75 fps (1), 7.5 fps (2),15 fps (3), 30 fps (4), 60 fps (5), 120 fps (6), 240 fps (7).
To check the available frame rates of you camera, you can use the 1394CameraDemo.exe that is shipped with the CMU driver, or check the camera datasheet.
Configuration Window
editAllows you to open a configuration window to modify other camera parameters of the firewire camera, such as the white balance, saturation, gain, etc. Note that not all cameras allow you to modify all these parameters.