The present invention relates to a scale capable of measuring the weight and the surface area of a human body simultaneously. Provided are an apparatus and a method for measuring the state of the surface area of a human body, which are capable of stereoscopically and quantitatively measuring the state of the surface area of a human body by being applied with a stereoscopic concept of that a cerebrum recognizes a stereoscopic object by a disparity between two stereo images recognized by both eyes as the basic concept of the visual physiology of the human body. According to the present invention, the functional scale is capable of displaying a simple variation in the value of the weight of the human body and a visual and a temporal variation in the surface area of the human body to be linked with each other, thereby securing reliability in a diet (an obesity treatment). In addition, the scale is capable of displaying not only a variation in the entire surface area of the human body but also variations in the limited surface areas of parts (an abdomen, a thigh, an arm, a face, etc.) to be converted into percentages, thereby securing significance in a diet (a treatment) for a partial obesity (an obesity of a certain part). Furthermore, in the case of a comparison between images before and after a treatment for an obese patient, the scale is capable of displaying the variation (the percentage) in the surface area on the images according to a variation the weight, thereby securing a sense of accomplishment in the treatment and securing significance and reliability in the treatment.COPYRIGHT KIPO 2015본 발명은 앞서 말했듯이 체중과 체면적을 동시에 측정할 수 있는 체중계에 관한 것으로 인체의 시각생리의 기초개념인 인체의 양측 눈에서 인식된 두 개의 상(Stereo image)의 차이(Disparity)에 의해 대뇌에서 입체를 인식하는 입체적인 개념을 응용하여 사람의 체면적 상태를 입체적으로 정량 계측도록 한 체면적 상태 측정 장치 및 그 방법을 제공하는 데 있으며 단순한 체중 수치 변화 외 시각적인 신체면적 변화 그리고 시간적인 변화까지 시각적으로 보여주어 결부시켜 다이어트(비만치료)의 신뢰성을 확보할 수 있는 기능을 가진다. 아울러 신체 전신 면적변화는 물론 일정 부위(복부 허벅지 팔 얼굴 등)를 한정해 면적 변화를 배분율로 표시하여 부분 비만(특정부위 비
