PROBLEM TO BE SOLVED: To provide an information processor, an information processing method, a program and an information processing system, capable of more accurately measuring body tissue and biological components.SOLUTION: An information processor related to this disclosure includes: a measurement part for detecting light emitted from a living body by a sensor having a plurality of pixels utilizing a microlens array in which a plurality of lenses are regularly disposed in a lattice shape, and generating measurement data related to the detected light； and a data processing part for performing processing to the measurement data. The data processing part includes a correction processing part for correcting first data which is data corresponding to one depth within the living body in the measurement data, by utilizing second data which is the data corresponding to another depth different from the one depth in the measurement data.
