The emergence of machine vision transport layer IP cores reduces the time required to develop camera-host interfaces. For example, Sensor to Image (S2I), a unit of Euresys, a leading frame grabber supplier, provides IP cores that meet the latest CXP, GigE Vision and USB3 vision interface standards. These IP cores secure the interoperability of the camera and host while ensuring compliance with the latest version of the interface layer.
S2I’s Vision Standard IP Cores solutions are delivered as a working reference design along with FPGA IP cores that have been fully tested against a wide range of popular frame grabbers and image acquisition libraries. The IP cores are compact, leaving plenty of room for additional vision functionality.
They are compatible with Xilinx 7 and newer and Intel/Altera Cyclone V and more recent devices.
The top-level design, consisting of the interface between external hardware such as the image sensor and transport layer PHY, is delivered as VHDL source code that can be adapted to custom hardware beyond the leading FPGA platforms supported by IP cores.
The Video Acquisition Module of the reference design simulates a camera with a test pattern generator. This module is delivered as VHDL source code which is replaced by a sensor interface and pixel processing logic in the camera design. An FPGA integrated CPU (either MicroBlaze, NIOS or ARM) is used for several non-time-critical control and configuration tasks on the Vision Standard IP Cores. This software is written in C and can be extended by the customer.
“By reusing IP cores, machine vision companies can focus on how to make the best image while maintaining full freedom to use any hardware needed to meet size, weight and power budget issues,” said Jean Caron, vice president sales and support, EMEA for Euresys.
“We work closely with the CoaXPress, USB3 Vision and GigE Vision committees to ensure that our IP cores comply with the latest revisions of the standards,” said Matthias Schaffland, IP product specialist at S2I. S2I has recently introduced an IMX Pregius IP core providing an interface to Sony Pregius Sub-LVDS image sensors.
The company will also soon introduce an interface to MIPI sensors primarily used in embedded vision systems and mobile devices. S2I offers a volume license best suited for companies with a large product line as well as a single-piece license which is the best option for companies with smaller lines. Training and support are offered with either licensing arrangement.
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