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This paper presents a novel technique for face recognition based on facial landmarks extracted automatically. Our landmarks are those associated with eyes mouth and nose. With the extracted landmarks, the area triplets and the associated geometric invariance are formed. We opt to use area and triangle confined within the triangle as the invariance. To bypass the perspective constraints, we take the...
Foot plantar pressure is the interface pressures between the foot surface and the supporting surface during daily activities. Pressure information provides valuable insight in gait and posture research for diagnosis diseases, footwear design, sport performance, injury prevention and other applications. In this paper, a dynamic foot plantar pressure measurement platform is proposed suitable for measuring...
Electrocardiogram (ECG) records electrical activity of the heart spreading through the heart muscle to make the heart contract. Recently ECG has been captured attention as biometric feature due to its uniqueness and large reliabilities for human identifications. In this study we aimed to verify the conservative ECG of human in their activities to ensure whether it is suitable to be used as biometric...
Knee injuries have become more common in Thailand, either caused from the sport or from the accident. The treatment is mostly a surgery. Hence, after the surgery, the patient must be closely monitored to prevent complications and repetitive injury. It also requires physical therapy to restore the knee function to resume a normal use. For this reason, the idea of creating a device that can restrict...
X-ray calibration tool for central point, focal-object distance and exposure time is proposed in this paper. To calibrate for central point and focal-object distance, a metal hollow cylindrical phantom is designed. The phantom will be placed in x-ray beam with central point is at the central-ray marker of the x-ray apparatus. The acquire x-ray imaging is then processed with image processing to determine...
Nowadays, Global Positioning System or GPS has been used extensively in various applications such as navigating to the target location, tracking the movement of people, security monitoring and determining point to relieve public disasters. Applications in healthcare smart home are discussed in this paper. We develop an indoor GPS for wheelchair patient who suffers from paralyze or semi-paralyze condition...
Balance checking is the method used to measure plantar pressure distribution in two ways, static and dynamic. In static mode, the patient is asked to stand still on the platform with optical sensors for ten seconds. The results show that the centroids of the feet of those who are capable of keeping good balance hardly disperse compare to those who are not. In dynamic mode, the patient keeps on stepping...
This new observing robot is a robot attached with auto focus webcam camera at front side of its body which is controlled by user from a far distance and designed to be used in indoor environment. The robot is designed by using designed android application on android device with Visual Reality (VR) to control movement of camera and using joystick for the direction of robot. Both controllers transfer...
This project is a smart wheelchair based on eye tracking which is designed for people with locomotor disabilities. The add-on controlled module can be used with any electrical wheelchair. The smart wheel chair consists of four modules including imaging processing module, wheelchair-controlled module, SMS manager module and appliance-controlled module. The image processing module comprises of a webcam...
Ear recognition is one of the new patterns of biometrics. Ear structure is believed to contain specific and unique anatomical markers, which can be used both to distinguish it from others. In this paper, we derive preliminary of Ear identification based on the geometric features on 3D ear surface for 2D ear image. Principal components analysis (PCA) is used in this study for feature extraction to...
Nowadays, ear shape study is one of the most significant trends in the biometric research. In this study, we present a novel surface fiducial point's detection that is computed from the differential surface geometry. The fiducial points are intrinsic, local, and relative invariants, i.e., they are preserved under similarity, affine, and nonlinear transformations that are piecewise affine. In our experiment,...
Ear recognition is one of the new patterns of biometrics. In this paper we derive a novel geometric invariance on ear surfaces that it is preserved under affine and weak perspective transformations. Our 3D shape features are based on the Gaussian curvature and Mean curvature. When a surface undergoes an affine transformation, the shape features are the affine transformed shape features of the original...
The progress of internet technology, especially in medical, information can be transmission across in real-time allowing medical practice through tele-diagnosis. Meantime, ensuring the security of transmitted medical information, including between protection and reliability guaranties, becomes a challenging. This work presents an effective reversible data hiding technique for the medical imaging modalities...
This paper presents an analysis of heat transfer from the surrounding area skin of newborn under using infant radiant warmer (IRW) by finite element three-dimensional software. And to compare the results of heat transfer measurements from experiments on the IRW in used everywhere. In this study, results are obtained for a simplified model. It is equipped with. Systems design, the properties of materials...
This paper presents an algorithm in reversible watermarking or lossless data hiding, the application associated with the quick response codes (or call QR codes) and the biomedical images. QR code is random patterns, looks like random noise which can be commonly found on the webpages. We can use the smartphone camera to capture the QR code at the webpage, and then the hyperlink corresponding to the...
Medical images play a significant role in diagnosis at the present time. The diagnosis information is also important particularly in patient treatment data, the results and other confidential information which cannot be disclosed according to judgment and ethics. These data are exported with the images and will be protected generally. This article presents a high-efficiency technique for hiding information...
After the development of miniature computed tomography, the calibration is the first thing to do. In this paper, image processing was used for testing miniature CT. We got comprehended coordinates on a chessboard. Then entire data were computed by direct linear transform equation (DLT). DLT is famous equation for finding a real position of three-dimensional object form two-dimensional images in multi...
This paper presents 3D finite element analysis for heat transfer and specific absorption rate of electromagnetic field in human body at 915 MHz and 2.45 GHz. The purpose of this research is to study the effects and harmfulness of leakage electromagnetic field to organ in living tissue. We propose a simulation of microwave radiation by using a finite element method (FEM) to our system for studying...
This paper presents heat transfer from infrared element source from infant radiant warmer. The principles of thermal radiate using three-dimensional finite element methods is show the efficiency and effect of Infant radiant warmer. In the design of the system has to model the underlying reality of the infant radiant warmer are used for Simulation results were similar to reality as possible. The simulation...
This paper presents a study of heat transfer efficiency in double wall infant incubator by using 3D finite element method. Double wall infant incubator was modeled by using general CAD program then FEM analysis was implemented based on heat transfer and fluid dynamic principle. Real temperature measurement also performed to validate our simulation by using a general infant incubator and an infant...
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