Processing of video streams related to surgical operations

A non-transitory computer-readable medium encoded with executable instructions which, when executed, causes an apparatus comprising a processor operatively coupled with a memory, to perform a method for processing a video stream related to a specific operative procedure, the method comprising:

• receiving, via the video stream reception interface, the video stream comprising a sequence of images including an image to be processed which represents at least a portion of an anatomical element, said image to be processed being formed by processing elements;
• determining, by means of a processing function, whether or not a criterion is satisfied in the image to be processed, the processing function being composed of a first parameterized function and a second parameterized function:
• parameters of the first parameterized function being obtained by a machine learning algorithm on the basis of an image from a reference sequence of images such that the result of the first parameterized function applied to the image allows determining the processing elements of the image which represent the portion of the anatomical element, the reference sequence of images being previously recorded and related to the specific operative procedure, the image from the reference sequence of images representing at least a portion of an anatomical element,
• parameters of the second parameterized function being obtained by a machine learning algorithm on the basis of the image from the reference sequence of images that is combined with a result of the first parameterized function applied to the image from the reference sequence of images such that the result of the second parameterized function applied to the image combined with a result of the first parameterized function applied to the image allows determining whether or not the criterion is satisfied;
• determining a state of progress associated with the image to be processed, based on whether or not the criterion is satisfied, the state of progress being representative of a state of progress of an operative step of the specific operative procedure.