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USB uEye XS Special Features

uEye Camera Manual Version 3.80

USB uEye XS Special Features

The USB uEye XS comes with built-in auto focus and a signal processor (DSP). This camera provides powerful functionality and many special features that are not available with other camera models. In this chapter, you will find an overview of the different features offered by the uEye XS.

Auto focus system

The USB uEye XS features a built-in auto focus system that is fixed to the sensor. It has a horizontal viewing angle of 53° (corresponds to a focal length of 35 mm in small picture format) and can sharply focus as close as 10 cm, either automatically or manually (via software). An integrated API function allows reading out the current focus.

Image formats

The uEye XS transfers live images in different sizes up to HDTV 720p resolution (1280 x 720 pixels) at 15 frames per sec. Images in other sizes from 320 x 240 to 960 x 480 can even be transferred at up to 30 fps. Using binning and the powerful scaling functions, you can optimally represent the entire field of view even at low resolutions.

The CMOS sensor of the uEye XS provides a resolution of 8 megapixels. The full image size of 3264 x 2448 pixels is available in software trigger mode.

Face detection

The uEye XS can detect and track up to four different faces in real-time image acquisition mode. Overlay boxes mark the detected faces in the camera image to show you their positions. For each detected face, the DSP calculates the position coordinates, the size, facial orientation angle, and head posture. An integrated API function allows reading out this data or using a face as the field of view for automatic brightness control.

Digital zoom

The wide aperture angle of the uEye XS captures a field of view that suits most applications. But you can also zoom in on a smaller area of interest by using the digital zoom feature. With zoom factors from 1 to 16, this feature allows nearly stepless zooming in both live images and single frames.

Image stabilization

The image stabilization function of the uEye XS helps reduce blurred images caused by camera movement and vibration. The correction is performed electronically by the camera's DSP, which detects and compensates undesired movement.

Hinweis

If you have mounted the camera (e.g. on a stand) so that it is vibration-free, you should disable the image stabilization function. Otherwise, slight image background movement could occur.

Image controls

As opposed to the other uEye camera models, the USB uEye XS carries out all automatic image controls internally. This has the advantage that the Auto White Balance, Auto Exposure and Auto Gain (Auto ISO) functions respond very quickly.

With the optional auto contrast correction, backlight compensation, photometry and anti flicker functions, you can adjust the automatic controls of the uEye XS in detail.

The scene modes adjust a number of camera parameters – e.g. color and exposure settings – to suit specific image capture situations.

Color calculation

The camera's signal processor converts the sensor's raw data to a color format in real time before transfer to the host computer. This helps to take load off the computer's CPU. The image data of the USB uEye XS are transferred uncompressed in YCbCr format (2 bytes per pixel). If a different color format (e.g. RGB) is required, the uEye API can convert the data to the desired format.

The USB uEye XS provides separate functions for setting the sharpness and color saturation.

In the Direct3D display mode, you can represent the camera's YCbCr color data directly with minimum CPU load.

 

See also:

uEye Demo: uEye XS Properties
Specifications: UI-1008XS

 

Programming:

Focus: is_Focus()
Image formats: is_ImageFormat()
Face detection: is_FaceDetection()
Digital zoom: is_Zoom()
Image stabilization: is_ImageStabilization()
Automatic image control: is_SetAutoParameter()
Scene modes: is_ScenePreset()
Color format: is_SetColorMode()
Sharpness: is_Sharpness()
Color saturation: is_Saturation()

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