FPGA TEXT OVERLAY
A COMPOSITE VIDEO TEXT OVERLAY SYSTEM USING XILINX FPGA
As part of my final BSc project, I opted for a digital design project with FPGAs and Verilog. During the undergraduate laboratories, I had built digital circuits using discrete AND / OR gates on breadboard. This was very cumbersome, and I was intrigued when introduced to the concept of FPGAs. My project was a real-time text overlay on composite PAL/NTSC video signals. This was useful for annotations and graphics for real-time video broadcasting. I used Xilinx Spartan-3E coded in Verilog and few external components to complete this project. See Github for the source code.
Find out more at danchitnis/FPGA-text-overlay
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(1/4) The final system: The Xilinx Spartan 3E FPGA board and the breadboard for controlling the composite video signal.
A recorded demonstration of the video overlay system. The text is overlaid in real-time using an input keyboard directly attached the FPGA board. The input video signal is from a handycam focused on a clock.