A statistical examination of the Fry method of strain analysis

► The statistics of the Fry method of strain analysis is examined. ► Point objects in the pre-deformed state are assumed in the Poisson distribution truncated at the maximum probability density function (PDF) of a certain point object. ► The mean log likelihood function (MLLF) is the average sum of the log PDF of each individual point in the deformed state. ► A new strain method is developed that solves for unknown parameters, strain and cutoff radius by maximizing the MLLF.