PROBLEM TO BE SOLVED: To provide an information processing apparatus, an information processing method, a program, and an information processing system, which are capable of judging a condition of a blood vessel or blood flow, such as dilation/constriction of the blood vessel or increase/decrease of the blood flow.SOLUTION: The information processing apparatus includes a judgment unit for using measurement data in relation to reflectance of light obtained by irradiating a surface of a living body of a subject with light of a predetermined wavelength to judge the condition of the blood vessel and/or the condition of blood flow of the living body in accordance with a color phase corresponding to the reflectance of light.COPYRIGHT: (C)2013,JPO&INPIT【課題】血管の拡張や収縮、血流の増加や減少という血管や血流の状態を判定することが可能な情報処理装置、情報処理方法、プログラム及び情報処理システムを提供すること。【解決手段】本開示に係る情報処理装置は、被測定者の生体表面に所定波長の光を照射することで得られた当該光の反射率に関する測定データを利用し、前記光の反射率に対応する色相に応じて前記生体における血管の状態及び/又は血流の状態を判定する判定部を備える。【選択図】図3
