First of all, it's important to understand what are the control signals that are required to be generated using virtex FPGA to control the detector chip readout.
Which digital camera are you planning to interface, is it CCD or CMOS detector as that will decide whether you will directly get digital output from the detector chip itself or a separate ADC is required to be interfaced between camera and FPGA.
Next comes the i/o standards to be chosen in the FPGA to interface it with the camera or the ADC.
For displaying the processed image in the PC, you can develop program either in MATLAB or LABview to interface FPGA board with the PC.