A method for correcting a gain table used in a correction of a response dispersion of resistive bolometers of a resistive bolometer retina suspended above a substrate of a bolometric detector, said correction being applied to raw read signals provided by said bolometers, and each gain of the gain table being associated with a bolometer of the retina, the method comprising acquiring (30032, 30033, 30034; 5003) read signals from the retina corresponding to a substantially temperature-uniform scene, characterized in that said method comprises: ▪ calculating (30034, 30035; 50034, 50035) a table g for correcting the gain table according to the acquired read signals according to relation: g i j = R ac _ shut i j R ac _ ref i j. TC R ref i j TC R shut i j ▪ and correcting (30036; 50036) the gain table according to relation: G shut i j = g i j. G ref i j N where ▪ ( i, j) represent the coordinates of the bolometers in the retina and the tables; ▪ G ref and G shut respectively are the gain table before correction and the corrected gain table; ▪ R ac_shut (i, j) is a value of the resistance of the bolometer of coordinates ( i, j) at the time of acquisition of the read signals; ▪ R ac_ref (i, j) is a value of the resistance of the bolometer of coordinates ( i, j) at a previous time; ▪ TCR shut (i, j) is a value of the temperature variation coefficient of the bolometer of coordinates ( i, j) at the time of acquisition of the read signals; ▪ TCR ref (i, j) is a value of the temperature variation coefficient of the bolometer of coordinates ( i, j) at the previous time; and ▪ N is a scalar factor for normalizing gain table G shut. ▪ calculating (30034, 30035; 50034, 50035) a table g for correcting the gain table according to the acquired read signals according to relation: g i j = R ac _ shut i j R ac _ ref i j. TC R ref i j TC R shut i j ▪ and correcting (30036; 50036) the gain table according to relation: G shut i j = g i j. G ref i j N where ▪ ( i, j) represent the coordinates of the bolometers in the retina and the tables; ▪ G ref and G shut respectively are the gain table before correction and the corrected gain table; ▪ R ac_shut (i, j) is a value of the resistance of the bolometer of coordinates ( i, j) at the time of acquisition of the read signals; ▪ R ac_ref (i, j) is a value of the resistance of the bolometer of coordinates ( i, j) at a previous time; ▪ TCR shut (i, j) is a value of the temperature variation coefficient of the bolometer of coordinates ( i, j) at the time of acquisition of the read signals; ▪ TCR ref (i, j) is a value of the temperature variation coefficient of the bolometer of coordinates ( i, j) at the previous time; and ▪ N is a scalar factor for normalizing gain table G shut. ▪ ( i, j) represent the coordinates of the bolometers in the retina and the tables; ▪ G ref and G shut respectively are the gain table before correction and the corrected gain table; ▪ R ac_shut (i, j) is a value of the resistance of the bolometer of coordinates ( i, j) at the time of acquisition of the read signals; ▪ R ac_ref (i, j) is a value of the resistance of the bolometer of coordinates ( i, j) at a previous time; ▪ TCR shut (i, j) is a value of the temperature variation coefficient of the bolometer of coordinates ( i, j) at the time of acquisition of the read signals; ▪ TCR ref (i, j) is a value of the temperature variation coefficient of the bolometer of coordinates ( i, j) at the previous time; and ▪ N is a scalar factor for normalizing gain table G shut.