Method for enhancing a physical parameter map (602, 603) in a zone of a seismic image, said method comprising: /a/ obtaining the zone of the seismic image, said zone comprising a set of points, wherein each point in said set of points is associated to x, y, z coordinates and to a physical parameter v (x,y,z) at said point of coordinates; /b/ obtaining a dip (31, 32) at each point in the set of points; /c/ selecting at least a first point in the set of points, and a second point in the set of points; /d/ obtaining a common image gather associated with the second point in said set of points; characterised in that the selection of at least a first point in the set of points and a second point in the set of points is based on at least one condition of: - the absolute value of the scalar product between a unitary vector perpendicular to the dip of the first point and a unitary vector perpendicular to the dip of the second point being above 0.95; and - the distance between a ray normal to the first point and the second point being less than 5 % of the distance separating the first point from the second point; and further characterised in /e/ applying a residual move-out analysis algorithm to the common image gather to obtain a correction factor of the physical parameter at said second point; and /f/ applying an inversion algorithm to points between the first point and the second point in the set of points and along a line joining said first point and second point, to obtain an interval value of said physical parameter to update the physical parameter map; /a/ obtaining the zone of the seismic image, said zone comprising a set of points, wherein each point in said set of points is associated to x, y, z coordinates and to a physical parameter v (x,y,z) at said point of coordinates; /b/ obtaining a dip (31, 32) at each point in the set of points; /c/ selecting at least a first point in the set of points, and a second point in the set of points; /d/ obtaining a common image gather associated with the second point in said set of points; characterised in that the selection of at least a first point in the set of points and a second point in the set of points is based on at least one condition of: - the absolute value of the scalar product between a unitary vector perpendicular to the dip of the first point and a unitary vector perpendicular to the dip of the second point being above 0.95; and - the distance between a ray normal to the first point and the second point being less than 5 % of the distance separating the first point from the second point; and further characterised in - the absolute value of the scalar product between a unitary vector perpendicular to the dip of the first point and a unitary vector perpendicular to the dip of the second point being above 0.95; and - the distance between a ray normal to the first point and the second point being less than 5 % of the distance separating the first point from the second point; and further characterised in /e/ applying a residual move-out analysis algorithm to the common image gather to obtain a correction factor of the physical parameter at said second point; and /f/ applying an inversion algorithm to points between the first point and the second point in the set of points and along a line joining said first point and second point, to obtain an interval value of said physical parameter to update the physical parameter map;