Sony’s Pregius IMX249 and genuine multi-ROI
SMARTEK Vision’s flagship Giganetix Plus (GCP) camera series, is one of the first camera lines on the market to include Sony Pregius Exmor CMOS sensor technology with the IMX174 sensor being used in the GCP1931 camera. The little brother of this sensor, the IMX249 is now also being incorporated into the GC series, thereby extending the SMARTEK portfolio with another important Sony Pregius Exmor sensor. Sony’s Pregius Exmor IMX249 sensor features a high dynamic range of up to 70dB, large 5.86µm pixels, a very low read-noise value of 10e- and very high sensitivity under low light conditions. Compared to the IMX174, the IMX249 sensor with a transfer rate of up to 41fsp is significantly less expensive whilst continuing to provide excellent performance. The SMARTEK Vision GC1932 with the IMX249 is therefore particularly suitable for cost-sensitive image-processing solutions where image quality is important and speed plays a secondary role. Damir Dolar, Senior Development at SMARTEK Vision, explains: “For industrial use, it is important to accurately reproduce the exact shape of a moving object, this is why we extended SMARTEK’s GC series with its first global shutter CMOS sensor, Sony’s Pregius IMX249. Thanks to Sony’s revolutionary analogue memory, the sensor is extremely sensitive, furthermore, simultaneous recording of all pixel signals produces distortion-free images without smearing.” Increasing sensor sizes and sensor speed make the Ethernet bandwidth the limiting factor of Camera performance. The ‘big sister’, the GCP1931 camera with the IMX174 sensor, now offers the full multi-ROI (Region Of Interest) features of the Sony Pregius Exmor sensor. By setting regions of interest (ROI), certain sections (the important ones) of the image can be selected and transferred. With smaller volumes of data being sent the camera framerate is speeding up. By adapting the firmware, SMARTEK’s engineers were amongst the first to make this multi-ROI feature of the IMX174 sensor available in the GCP1931 camera. With freely definable definitions of blind columns and lines, several ROIs can now be laid out in a grid structure to make much better use of the bandwidth. An additional feature in the SMARTEK GCP series on mono sensors is packing. At a pixel depth of 10 or 12 bits packing is reducing the transferred data volume thus leading to a bandwidth saving of about 30% without any compression artifacts. This translates directly to a framerate performance boost. Publication:
Vision Systems Design
PC & Industrie (P.43)
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SMARTEK Vision Giganetix camera highlights
The FRAMOS Imaging Team