关键词: 高动态范围图像, 数字信号处理, FPGA

Abstract:

High dynamic range image (HDRI) synthesis is of high algorithm complexity, which makes it almost impossible to implement in real-time processing situation. To deal with this drawback, we proposed a real-time HDRI synthesis algorithm that is applicable to hardware which can deal with parallel computing. This method first derives detector illumination response function, and then accomplishes the recovery of illuminances on scenes of multi-exposure images and real-time integration of pixels through digital signal processing on FPGA. Simulation results indicate the correctness and efficiency of this algorithm, which also can meet the design requirements in real-time processing.

Key words: high dynamic range image(HDRI), digital signal process (DSP), field-programmable gate array (FPGA)