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A low-power depth-estimation processor is proposed for mobile UI applications. We adopt hardware-friendly shift-only computations for exponentiation and multiplication in stereo algorithm to reduce power consumption down to 4.7mW with negligible accuracy loss. Also, the 7-stage shifter-register-based pipeline architecture with applying pipeline reordering optimization is deployed for reducing power...
The accuracy of the image is dependent on the quality parameters of camera. The camera parameters is obtained from the target calibration of the test bench in past. Recently, the image processing software can be dealt with the target-free calibration by internal programming. In this research, the images of unmanned aerial vehicle (UAV) are examined by two types of processes, target calibration and...
The market of light-emitting devices (LED) is growing dramatically over these years. To test the quality of LEDs, lots of LED probes are required. Therefore, it is important to develop an effective method to measure the angle (around 10 degrees) and the radius (15 µm ∼ 30 µm) of a produced LED probe. In this study, we propose a new subpixel edge detection for LED probes. The proposed method mainly...
Dichromats (a human with red-green color blindness considered in this paper) cannot always perceive meaningful visual information due to their deficiencies in eye cells. Stroke information extraction from a color-blindness image (CBI) is presented in order to deliver direct and effective information to dichromats. A CBI is first transformed into the pattern-highlighted image by means of color component...
Most of image processing algorithms such as filters are sequentially processed. So, data reusability should be considered to maximize processing efficiency. Because of its high performance and resource requirement, data refill by block based cache architecture has been proposed to maximize data reusability for a portable device image processing. However, if non-continuous data access happens, block...
In the early years of college, students have the need to learn how to program in any programming language. It is important to see the differences between programming languages and their rules. We are proposing an interactive and self-study system for students to acquire the knowledge they need, from data structures to algorithms using multiple programming languages. The system gives the students some...
This study proposes a new system for learners to master double-under skill. In terms of proposing methodology, it assumes four training phases. First and second phases deal with the primitive motion training but the latter two phases do their combination. This paper focuses mainly on the third one that treats combination of primitive dyad of the former phases without a rope instrument. The prototype...
The authors propose a new color glove and finger outlines extraction method using the palm region. This glove does not have symmetry about colors for distinguish between the palm and the back of the hand. When a finger region is on the palm region, the outline of the finger is not eliminated. The authors investigated the relationship between wrist rotation angles and success rate of finger outlines...
In this paper, we propose a novel framework for nighttime image dehazing based on a nighttime haze model which accounts for varying light sources and their glow. First, glow effects are decomposed using relative smoothness. Atmospheric light is then estimated by combining global and local atmospheric lights using a local atmospheric selection map. The transmission is estimated by maximizing an objective...
This paper presents an application of LabVIEW and camera interface which is used for taking attendance in classroom. The system use a camera which is connected to PC on USB interface and attached to each and every classroom for taking snap of students presented. LabVIEW graphical programming environment is a tool for realizing the image acquisition and processing. This software has several advantages:...
Safety is a constant need that involves aspects such as integrity of moving objects and / or transport, such as lockers or bike. Therefore, in this paper the development of software applications based on image processing, which relieve traditional media such as padlocks and associated problems such as lost keys or forgotten passwords arises. In a timely recognition of faces in an embedded to derive...
The counting of people is considered important for air-conditioning system in the intelligent building. Based on image processing, an automatic simple bi-directional counting method of pedestrians through a gate is proposed. In this method, only one common camera is used which is hung from the ceiling of the gate with a directly downward view. An experimental formula is used to estimate the number...
Concerns due to decreasing natural resources and expected growth of world population lead scientists to invest more research into potential improvement of agricultural efficiency using tools of computing technology. Improvements that can be achieved by monitoring phenology of agricultural plants become critical due to its effect on timing for the harvest, pest control, yield prediction, farm monitoring,...
Developing technology threaten to the information security and privacy. Today, for data transfer in a private and secure environment, the use of encryption methods or cryptographic systems are inevitable. In this study WHT (Walsh-Hadamard Transform) that is used, one of the transforms that used image processing techniques such as attribute extraction on image files, text analysis, filtering, compression...
In this paper, a new shaped marker is designed for augmented reality applications that has 360 degree viewing angle about its shaft axis. The main advantage of the designed marker is that it is very simple to extract marker area from images with basic image processing methods. And decoding of the marker codes is very simple with basic mathematical functions. Experimental results showed that, the designed...
Rail transportation systems, which are commonly used in today's world, should be inspected at certain intervals for possible accidents. During the rail inspection, the physical vibration on rail lines causes a blurring effect on the images. Doing deblurring automatically requires information of blurring rates and specifying the parameters accordingly for deblurring. With this purpose, a test equipment...
In this paper, a new method that extracts the features from the complex Local Zernike Moments (LZM) images around facial landmarks is proposed. In this method, multiple grids which are in different sizes are located on landmarks and Phase-Magnitude (PM) histograms are calculated in each cells of these grids. The PM histograms are calculated for every component of LZM and the feature vectors are created...
This study presents a novel approach to define the formal information of heartbeat and detect the R-wave case in the workspace of Electrocardiogram (ECG). Analyze of QRS wave location gives opportunity to define the heart abnormality A few methods were developed to detection of rhythm disorder by using classical classification methods. The method proposed in this study is a recursive algorithm based...
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