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We envision a conference room of the future where depth sensing systems are able to capture the 3D position and pose of users, and enable users to interact with digital media and contents being shown on immersive displays. The key technical barrier is that current depth sensing systems are noisy, inaccurate, and unreliable. It is well understood that passive stereo fails in non-textured, featureless...
The applications of the simulation of adult aging effects are widespread nowadays whereas the difficulties in certain aspects restrict its development. In this paper, a method for simulating adult face aging effects is proposed. We adopt and extend an aging simulation method based on the super-resolution in tensor space. By means of the active appearance model, the differences among the locations...
In this work the image is segmented effectively based on texture feature by reducing the noise. For effective image segmentation Expectation-Maximization (EM) algorithm based on Gabor filter is used. The EM algorithm is applied on 2D Ultrasonic image of uterus and tested. The Gabor function has been recognized by its multiresolution properties and the precision of locating the texture features in...
Crowd density estimation is important in crowd analysis and texture analysis is an efficient method to estimate crowd density, this paper proposes an improved estimation approach based on texture analysis. First, background is removed by using a combination of optical flow and background subtract method. Then according to texture analysis, a set of new feature is extracted from foreground image. Finally,...
The intermediate view synthesis from arbitrary view is a challenging topic in multi-view areas, many image-based rendering methods have been proposed to solve this problem. A new multi-view intermediate view synthesis method based on Tikhonov regularization function is proposed to synthesis view from limited number of source views. The experiments show good results of the synthesized views.
In this paper, an algorithm to segment 3D points in dense range maps generated from the fusion of a single optical camera and a multiple emitter/detector laser range finder is presented. The camera image and laser range data are fused using a Markov Random Field to estimate a 3D point corresponding to each image pixel. The textured 3D dense point cloud is segmented based on evidence of a boundary...
This paper describes a novel approach for purely vision based mobile robot navigation. The visual obstacle avoidance and corridor following behavior rely on the segmentation of the traversable floor region in the omnidirectional robocentric view. The image processing employs a supervised approach in which the segmentation optimal with respect to the appearance of the local environment is determined...
We introduce a new method for texture synthesis based on multiple seed-blocks and support vector machines (SVM). First the sample texture is used to train the SVM model with class labels assigned to gray levels. During the synthesis process, each time we generate one patch in the left-to-right order in the result texture. The size of each patch is smaller than that of the sample, and we search a seed-block...
In this paper an abstract template is constructed for extracting facial information from images. Different from the traditional template, which only includes color or gradient information in pixel level, abstract templates synthesizes texture, shape and scale information of the objects with relative parameters. This parameterized model can be used to describe the object to be recognized together with...
In this paper, we propose a more accurate method to align two images under rotation, scaling, blurring in weak texture image. This method utilizes the uniform log-polar sampling (ULP) technique in order to overcome the problem of over-sampling in the fovea area and under-sampling in the peripheral area which affects the accuracy of registration. The proposed method can effectively estimate the rotation...
In video surveillance system, it is a key factor that extracting moving objects accurately to obtain better monitoring effect. The shadows followed with moving objects may change the object shapes or distort the object. Therefore, it become difficult to extract moving objects accurately. In this paper, According to optical characteristics of shadow, a shadow elimination method based on HSV color space...
A fundamental goal of lossy image compression is to reduce the bit rate, to save time in transmission and save storage of memory of digital images while maintaining an acceptable fidelity or image quality. There usually are two methods to design simple and efficient coding algorithms. One is to modify a simple coding algorithm by keeping its simplicity while improving its efficiency; the other is...
An image fusion Algorithm based on variational decomposition and energy of edge is presented in this paper. Firstly, each source image is decomposed into a geometrical component and a textured component by applying Rudin-Osher-Fatemi (ROF) model in combination with Chambolle's projection algorithm. Secondly, the corresponding components are fused separately. For fusing the geometrical components,...
In this paper, we present a novel approach for Arabic Text-Independent Writer Identification and Verification. Given that the handwriting of different people is often visually distinctive, we propose a global approach based on texture analysis, where each writer's handwriting is regarded as a different texture. This allows us to apply a texture classification method mainly based on a set of new proposed...
The paper introduces three texture analysis methods of ultrasonic images based on spatial domain method. Feature parameters, including mean, variance, contrast, homogeneity, angular second moment and entropy, are achieved from gray histogram statistic, gray level difference statistic (GLDS), gray level co-occurrence matrix (GLCM). Then the above statistical feature parameters are applied for texture...
Accurate scatter correction is especially important for high-resolution 3D PETs due to the lack of inter-slice septa. To address this problem, a fully 3D iterative scatter-corrected OSEM in which a 3D single scatter simulation (SSS) is alternatively performed with a 3D OSEM reconstruction until convergence was recently proposed. However, due to the computational complexity of both SSS and OSEM algorithms...
The design and the implementation of algorithms on FPGA-based architectures, is a complex task, above all for image processing. Many vision applications (video monitoring, obstacle detection from a vehicle) require real time performance. This paper analyzes only a classical function involved in these applications: pixel characterization by an attribute vector, and pixel classification as belonging...
With the widely use of digital image, text location/detection is considered as a key part of the image text information extraction system. We have proposed a robust system for text detection in images. The proposed scheme uses a set of characteristics which are combined to build a large ones, it's based on texture features and connected components analysis. First, edge detection technique is used...
In this paper we present a new texture descriptor based on the shape operator defined in differential geometry. Then we describe the texture feature analysis process based on the spectral histogram. After that we describe a new algorithm for texture segmentation using this descriptor, statistics based on the spectral histogram, and mathematical morphology. Many results are presented to illustrate...
The lip-region can be interpreted as either a genetic or behavioral biometric trait depending on whether static or dynamic information is used. Despite this breadth of possible application as a biometric, lip-based biometric systems are scarcely developed in scientific literature compared to other more popular traits such as face or voice. This is because of the generalized view of the research community...
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