Blackfly - CYLOD

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Point Grey Blackfly Technical Reference 8 Blackfly Attributes 8.3 GenICam Image Format Control Name Display Name Description Value SensorWidth Sensor Width Effective width of the sensor in pixels SensorHeight Sensor Height Effective height of the sensor in pixels MaxWidth Max Width Maximum width of the image in pixels MaxHeight Max Height Maximum height of the image in pixels Width Height Width Height Width of the image provided by the device in pixels Height of the image provided by the device in pixels OffsetX Offset X Vertical offset from the origin to the AOI in pixels OffsetY ReverseX PixelFormat Offset Y Reverse X Pixel Format Horizontal offset from the origin to the AOI in pixels Flip horizontally the image sent by the device. The AOI is applied after the flip Format of the pixel data (not all cameras support all formats) PixelCoding Pixel Coding Coding of the pixels in the image True False Mono8, Mono12, Mono16, Raw8, Raw12, Raw16, RGB, YUV411, YUV422 Mono Raw YUV RGB PixelSize Pixel Size Size of a pixel in bits 8/12/16/24 PixelColorFilter Pixel Color Filter Type of color filter that is applied to the image TestImageSelector Test Image Selector Selects the type of test image that is sent by the camera VideoMode Video Mode Current video mode 0 ... 8 PixelBigEndian Pixel BigEndian Set the pixel endianess for pixel format Mono16 BinningHorizontal Binning Horizontal Number of horizontal pixels to combine together BinningVertical Binning Vertical Number of vertical pixels to combine together PixelDynamicRangeMin PixelDynamicRangeMax Dynamic Range Min Dynamic Range Max Indicates the minimum pixel value transferred from the camera Indicates the maximum pixel value transferred from the camera Off Test Image 1 Test Image 2 True False Revised 12/13/2012 Copyright ©2012 Point Grey Research Inc. 44
Point Grey Blackfly Technical Reference 8 Blackfly Attributes 8.4 Frame Rates In some cases, enabling Jumbo Frames on the NIC can help to achieve maximum frame rates. Jumbo Frames can be enabled using the GigE Configurator. 8.4.1 Calculating Maximum Possible Frame Rate The maximum achievable frame rate for each camera on the network depends on available bandwidth, bytes per pixel, and resolution. Bytes per pixel (BPP) is related to pixel format. • 8-bit = 1 BPP • 12-bit = 1.5 BPP • 16-bit = 2 BPP Available bandwidth depends on Packet Size and Packet Delay. For information about calculating available bandwidth, see Determining Bandwidth Requirements. The theoretical frame rate (FPS) that can be achieved can be calculated as follows: Frame Rate in FPS = (Bandwidth / (W x H x BPP)) / Number of Cameras For example, assuming an 8-bit pixel format, 1288 x 964 image, using 25 MB/s bandwidth, the calculation would be as follows: Frame Rate = (Bandwidth / W x H x BPP)) / Number of Cameras Frame Rate = (25000000 / (1288 x 964 x 1)) / 1 Frame Rate = 20 FPS Revised 12/13/2012 Copyright ©2012 Point Grey Research Inc. 45
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Blackfly - CYLOD

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