an image generation method in a scintillation camera relates to a scintillation camera having a collimator for collimating gamma rays , a scintillation crystal for generating a light scintillation upon receiving a gamma ray , an array of photomultiplier tubes for receiving the generated light scintillation and for generating electrical signals according to amount and position of light received , and a display comprising pixels for displaying an image corresponding to an interpretation of the electrical signals received by the photomultiplier tubes . the method for interpreting the electrical signals received from an array of photomultiplier tubes includes the steps of : receiving electrical signals from the array of photomultiplier tubes ; applying a first algorithm to generate a first calculated event position ; assigning the first calculated event position to a pixel ; applying a second algorithm to generate a second calculated event position ; assigning the second calculated event position to a pixel .