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This paper proposed a monocular vehicle detection for forward collision warning system. We use the active-learning framework to train a cascade classifier and use a two steps vehicle detection. We used five test data to quantify our detection performance, analyzing the two-stage vehicle detection improvement, and the overall detection rate and the false detection rate. In a good light condition, the...
In this paper, a cost-effective and scalable edge-equation-based rasterizer algorithm and architecture for OpenGL ES Applications is proposed. The architecture consists of three main components which includes the Setup PE with four-stage operand scheduler, equation coefficient memory, and the tile generation stage. The Setup PE contains four float-point multipliers, three float-point adders, and four...
3D vision is becoming increasingly important, in major motion pictures as well as in home entertainment. Depth map generation plays a major role in 2D-to-3D conversion and acts as a precursory stage to Depth Based Image Rendering (DIBR). This paper presents a novel algorithm for depth map generation using a block based approach. The algorithm is composed of 2 parts: Background depth map generation...
In this paper, we propose an improved dynamic gamma correction method to enhance contrast and image quality for Liquid Crystal Displays (LCD) with Multi-Phosphor White Light Emitting Diodes (MPW LED). In order to reduce the hardware cost and improve the contrast and the edge strength, the proposed gamma correction method uses content-based analysis to reduce computational complexity. Experimental...
Due to the progress of consumer electronics, 3D-Graphics system has become mobilizing and attractive. For 3D graphics gaming applications with high resolution in mobile devices, the cost-effective hardware is crucial and necessary. In order to efficiently render 2D graphics, the raster operation techniques are developed. Traditional anti-aliasing techniques using the grid-based or point-sharing of...
This paper proposed a technique to avoid collisions in the image sequences captured by stereo camera. It has to filter out the independently moving objects by performing ego-motion computation of the vehicle, so that the front moving objects and possible dangerous conditions may be detected using this collision avoidance system. The stereo computation generated the sparse disparity map of the object,...
Stereo vision has been used in many different applications such as robot, entertainment, and car electronics. Disparity-based distance estimation requires a large amount of computational resources because of high block-matching computations, especially on the high-resolution image pair. In this paper, we propose an algorithm for computing the distance between our own driving car and the front car...
In this paper, we present an effective algorithm design for object tracking in intelligent surveillance applications. The proposed shape-perceived algorithm uses the building-block-based matching method. This method is fast due to its use of one-pass scanning and its low-cost of object classification. Two kinds of cameras are designed for different goals, a wide-angle camera and a PTZ camera, to construct...
In order to render 3-D graphics efficiently, rendering pipeline fixed function have been developed. Traditional triangle traversal techniques using edge-equation-based or scan-line-based methods may cause potential instability from the division operations. Moreover, traditional anti-aliasing techniques using the grid-based or point-sharing of edge to do super-sampling are not regular and the quality...
Stereo vision has been used in many different applications such as robot, entertainment, and electronics for car. Computation of the disparity map requires a large amount of computational resources because of high block-matching computations, especially on the high-resolution image pair. In this paper, we proposed an algorithm for computing the disparity map of a full HD image pair from left and right...
Since consumer electronic products grow rapidly, 3D display technology becomes popular in recent years. Now, there are more and more 3D products such as 3D camera, 3D projector, and 3D-TV. However, how to convert traditional 2D video contents to 3D one is a vital issue to solve it. This paper proposes a real-time 3D rendering processor for view synthesis in 2D-to-3D conversion. Moreover, the proposed...
3D vision is becoming increasingly important, in major motion pictures as well as in home entertainment. Depth map generation plays a major role in 2D-to-3D conversion and acts as a precursory stage to Depth Based Image Rendering (DIBR). This paper presents a novel algorithm for depth map generation using a block based approach. The algorithm is composed of 2 parts: Background depth map generation...
With the advances in central processing unit (CPU) capability, 3D display technology becomes popular in recent years. Now, there are more and more 3D products such as 3D camera, 3D projector, and 3D-TV. The 3D technology is not difficult to understand because most of the video contents are captured through two individual lenses. The corresponding video contents are considered as two respective bit...
Due to the progress of consumer electronics, 3D-Graphics system has become mobilizing and attractive. In order to render 3D graphic in efficiency, the rasterization techniques are developed. Traditional clipping techniques using the six-planes of view volume to split outside part of primitive are complicated and not cost-effective. For 3D graphics gaming application with high resolution in mobile...
Perceptual video coding is more intuitive than traditional compression methods such as temporal, spatial, and statistical redundancy. With the popularity of wireless multiplication devices, the transmission of video is an important issue. In order to decrease the transmission time and get better performance, the proposed perceptual evaluation model can save not only bit-rates but also maintain video...
Due to the advances in consumer electronics, 3D display systems have become possible and attractive. In order to execute backward-compatible 2D images/video, 2D-to-3D conversion techniques are developed. The monocular depth cue is to synthesize the virtual images of left-eye and right-eye. During the process of view synthesis, 3D image warping and hole filling are crucial techniques to effect the...
In this paper, we propose an improved color-gamut method for Liquid Crystal Displays (LCD) with Multi-Phosphor White Light Emitting Diodes (MPW LED) and a modified rich color image processing method with skin protection. The human skin tone is typically memorized by color information. In order to increase the color saturation, the traditional rich color method makes skin color unnatural, so a modified...
3D-TV plays an important revolution in consumer electronics. However, depth map generation is a critical technology for 2D to 3D conversion. In this paper, we propose a hybrid depth-perception algorithm for 2D-to-3D conversion in 3D display systems. The algorithm consists of three parts: moving object of border extraction, vanish line detection, and smoothing of the depth map. From the experimental...
This paper adopts a new block matching motion estimation algorithm and its VLSI architecture design. The proposed sorting-based algorithm (SBA) was derived from multi-level successive elimination algorithm (MSEA), which can skip unnecessary sum of absolute difference (SAD) calculation by comparing minimum SAD with multi-level SEA (msea). The proposed algorithm sorts the value of multi-level successive...
In this paper, the main objective is to adjust the quantization parameters according to the visual properties to improve coding performance. In order to view the effect levels and to know if the adjustment of quantization parameters is reasonable, three experiments were designed. Then a perceptual analysis module which crosses the spatial and temporal considerations is proposed. The final quantization...
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