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Although many daily necessities are translucent object, it is difficult to measure the shape of translucent object with traditional 3D scamming approach. We observed the behavior of the light path and proposed the 3D shape measurement method for translucent objects. We conducted the experiment to verify the usefulness the proposed method. From the experimental results, it was shown that the proposed...
Nowadays there is a big interest in applying natural gesture communication language to various systems. There are several techniques on how to detect willed hand motion or recognize gestures by using different kind of sensors. RGB cameras can be used to detect hand, but it has a limited application. For example, hand detection can be particularly hard in some lighting conditions or in different skin...
Although ear shape is used in forensic investigations, ear identification system assisting forensic experts is not well developed. One of the reasons for this is ear's 3D concave shape that changes their 2D appearances when there are changes in camera angles. To compensate these changes in 2D appearance, 3D statistical modeling is necessary. For this purpose, only one model is used in our previous...
Shape from focus technique can be used in the computer monocular vision, which is widely applied in the smart transportation. In this study, we proposed a novel directional statistics based focus measure for shape from focus computation. We first compute the standard deviation σ and the mean value μ in the directional neighborhood. Then use the σ/μ as the focus measure to estimate the shape. The proposed...
In this paper, we present an approach for detecting, recognizing and tracking varying number of objects through both have similarity shape and colors. The objects tracking is the varying notes of Indonesian traditional instrument called “gambang”. Our method build an idea how to recognize well the notes and classify each objects in real time tracking. The houghlines standard method is used to search...
Media arts created utilizing sound vibration have a big visual impact to audiences. One of the well-known artworks created by one of the authors, Naoko Tosa, is "Sound of Ikebana," which combined physical phenomenon, sound shape computing, and traditional Japanese flower arrangement culture. The method she used to create the artwork is Sound Vibration Form (SVF), which uses sound vibration...
Diagnostic technology for coke-making plants under operation for many decades is a pressing concern in the domestic steel industry. This paper describes a new approach for monitoring carbon deposition on high-temperature coking chamber walls. Texture analysis based on gray-level co-occurrence matrices and other texture features was applied to thermal images. As a result, brick surface, solid carbon...
Human beings have inseparably attached biofield with physical body. This is now universally accepted. Scientific experiments have conclusively proved that the state of mind, i.e. the thought process, is responsible for generating different characteristics of biophotons. Detection, measurement, and even two dimensional imaging of ultraweak biophotons emission have been reported. With rapid progress...
3D foot scanner is a non-contact type device that measures the shape of a foot using laser triangulation sensors. In general, a laser triangulation sensor is equipped with a single camera and a line-laser. Using only one laser triangulation sensor is insufficient to acquire accurate surface information of the full foot. In addition, the single camera in the laser triangulation sensor could cause occlusions...
This paper sets out and presents a new approach to determine the stroke volume of the artificial ventricle. The stroke volume of the chamber is one of the basic heart function parameters. For the artificial heart assist purpose, in the study this value is calculated based on the mapped shape of the flaccid membrane of the extracorporeal pneumatic heart assist pump. This is a continuation of the earlier...
Recently, interest in contents utilizing 360 and Virtual Reality images is increasing. These images are generally transformed into Equirectangular projection and transmitted in a 2:1 ratio rectangular shape. However, this method causes distortion of the upper and lower parts of the 360 images which is widely spread. Furthermore, since the spread 360 images requires higher data rate, it is difficult...
This paper presents a novel and robust descriptor, depth-projection-map-based bag of contour fragments, which is applied to extraction of hand shape and structure information from depth maps. Our method projects depth maps onto three orthogonal planes to generate the depth projection maps. Then, the bag of contour fragment descriptors are extracted from the three depth projection maps and concatenated...
Real-time image processing on low cost embedded systems is still a challenging research area. For this embedded platform, there is a trade-off between accuracy and processing time. We proposed a pedestrian detection method for thermal images that can perform in real-time on a Raspberry Pi embedded system while still keeping the accuracy high. Our detection framework is based on the conventional HOG-based...
On the aged society coming soon, many studies have explored homecare technologies. In this work, the activities at home are captured by a panoramic camera located at the center of a living room, and then analyzed and classified into standing, walking, sitting, falling, and watching television. First, the background subtraction scheme accompanied with shadow removal, and morphological operators of...
The paper presents new technique for correcting the desired shape of the flaccid membrane used in the artificial heart chamber. The original shape of membrane was obtained using specially developed type of method — Depth from Defocus. Accurately determining the shape of the diaphragm is very important. The shape of the membrane affects the final accuracy of determining the stroke volume of extracorporeal...
This work investigates the viability of using the visible shadows cast by vehicles to verify position claims made by vehicles in a platoon. Platooning is a method of guiding a group of vehicles whereby a lead vehicle determines the speed/velocity of the vehicles that follow. A cooperative following strategy is then employed by the followers to maintain a desired separation between themselves. In this...
In this paper, we propose a new person re-identification algorithm based on bi-directional superpixel earth mover's distance (BD-SP-EMD). To address the viewpoint change issue, the human body segmentation is first extracted based on background modeling and saliency maps. A bi-directional scheme is then applied to obtain the forward and backward SP-EMD distances. Based on these two distances, pedestrians...
This paper describes a method of grasp point detection from an item of cloth with unarranged shape. We focus on the combination of grasp point detector with shape classifier. In the proposed method, Convolutional Neural Network(CNN) is generated for shape classification, and it is also used for extracting a feature vector that presents shape characteristics. Using the feature, grasp points are calculated...
3D Morphable Models (3DMMs) are powerful statistical models of 3D facial shape and texture, and among the state-of-the-art methods for reconstructing facial shape from single images. With the advent of new 3D sensors, many 3D facial datasets have been collected containing both neutral as well as expressive faces. However, all datasets are captured under controlled conditions. Thus, even though powerful...
We propose a novel, practical solution for high quality reconstruction of axially-symmetric transparent objects. While a special case, such transparent objects are ubiquitous in the real world. Common examples of these are glasses, goblets, tumblers, carafes, etc., that can have very unique and visually appealing forms making their reconstruction interesting for vision and graphics applications. Our...
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