Defective Pixel Correction of an IR-camera-module
Bachelor Thesis from the year 2009 in the subject Electrotechnology, grade: 1, University of applied sciences Kärnten, language: English, abstract: This paper deals with the substitution of defective sensor pixels regarding an Infrared Energy (IR) camera module. The work includes information about the development of algorithms and the optimization regarding hardware usage of a Field Programmable Gate Array (FPGA). Furthermore, the work outlines the test of the algorithms with the aid of Matrix Laboratory (Matlab) and the implementation in Very high speed integrated circuit Hardware Description Language (VHDL). Simulations of the VHDL module conclude the work.
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1)+des image 3D surface bad pixels block RAM Bolometers cluster error Cluster template Column error correction containing the indizes data stream Dead element map dead pixel correction defective pixels Distributed RAM entity equation erence Finite State Machine Four corner correction FPGA German National Library gray-level values grayscale Hardware Description Language illustrates image_1 Infrared integer Integrated Circuit interface last–c listing 2.7 listing 3.1 line LWIR MathWorks Matlab microbolometer monolithic pyroelectric arrays NETD odd-even sort process order to substitute pixel correction module pixel counter pixel number 11 pixel see figure previous pixel pyroelectric detector Random Access Memory rectangle regarding the pixel Register Transfer Level rep_array Repair array containing repaired image rst position seen in gure sensor emulator set the constant simulate Single pixel correction single pixel errors sort_array Spartan-3A DSP XC3SD3400A substitute the defective substitution algorithms Substitution method substitution values ULIS sensor Value array containing values 11 VHDL module XILINX Spartan-3A DSP