scholarly journals Design and Realization of Animation Composition and Tone Space Conversion Algorithm

Complexity ◽  
2021 ◽  
Vol 2021 ◽  
pp. 1-11
Author(s):  
Liang Jing
Keyword(s):  
Hardware Implementation ◽  
Rapid Development ◽  
Color Space ◽  
Animation Industry ◽  
Time Requirements ◽  
Color Data ◽  
Mutual Conversion ◽  
Derivation Method ◽  
Light And Shadow ◽  
Color Components

In recent years, with the development of society and the rapid development of the animation industry, people are paying more and more attention to and requirements for animation production. As an indispensable part of animation production, picture composition plays a major role in animation production. It can give full play to the application of color matching and light and shadow design and enhance the depth and space of the animation screen. Tone space conversion refers to the conversion or representation of color data in one color space into corresponding data in another color space. Its purpose is to distinguish and process color components such as hue and saturation in an image. This article first introduces the domestic and foreign research status of digital image preprocessing and analyzes the basic principles of several color space conversions in detail. Then, several color space conversion algorithms are studied, and the performance of the algorithms is compared and analyzed. The paper focuses on the hardware implementation and optimization of the algorithm for converting RGB color space into HSI color space to meet the real-time requirements. This article focuses on the mutual conversion between the RGB tone space and the HSI tone space and describes in detail how each color component in the HSI tone space is converted from the three RGB color components from a geometric perspective, and then the conversion is derived, and several general conversion methods of RGB to HSI tone space are introduced; two conversion methods of geometric derivation method and standard modulus algorithm are implemented in the software, and the comparison verification is carried out, and the comparison is made from the perspective of hardware implementation. The pros and cons of the two methods are discussed. Finally, the paper summarizes the shortcomings in the design and proposes further research directions in the future.

scholarly journals Design of bio-inspired binocular UAV detection system based on improved STC algorithm of scale transformation and occlusion detection

2021 ◽  
Vol 13 ◽  
pp. 175682932110048
Author(s):  
Huajun Song ◽  
Yanqi Wu ◽  
Guangbing Zhou
Keyword(s):  
Detection System ◽  
Rapid Development ◽  
Reference Value ◽  
Scale Transformation ◽  
Hardware System ◽  
Time Requirements ◽  
Aerial Vehicle ◽  
Spatio Temporal ◽  
Small Targets ◽  
Vision Detection

With the rapid development of drones, many problems have arisen, such as invasion of privacy and endangering security. Inspired by biology, in order to achieve effective detection and robust tracking of small targets such as unmanned aerial vehicles, a binocular vision detection system is designed. The system is composed of long focus and wide-angle dual cameras, servo pan tilt, and dual processors for detecting and identifying targets. In view of the shortcomings of spatio-temporal context target tracking algorithm that cannot adapt to scale transformation and easy to track failure in complex scenes, the scale filter and loss criterion are introduced to make an improvement. Qualitative and quantitative experiments show that the designed system can adapt to the scale changes and partial occlusion conditions in the detection, and meets the real-time requirements. The hardware system and algorithm both have reference value for the application of anti-unmanned aerial vehicle systems.

Comparative Experiment of Color Reproduction Methods

2014 ◽  
Vol 1051 ◽  
pp. 967-970
Author(s):  
Qi Jia ◽  
Xu Liang Lv ◽  
Wei Dong Xu ◽  
Jiang Hua Hu ◽  
Xian Hui Rong
Keyword(s):  
Polynomial Regression ◽  
Rapid Development ◽  
Color Space ◽  
Digital Camera ◽  
Color Difference ◽  
High Tech ◽  
Comparative Experiment ◽  
Color Reproduction ◽  
Different Color ◽  
Time Image

Digital camera which has the advantage of real-time image transferring and easily processing is more and more widely used in the packaging and printing industry with the rapid development of high-tech electronics industry. However, the color in digital camera is not accurate which affect the application. To minimize the color difference between the color in the digital camera and the real color, the color reproduction methods is developing. The field comparative experiment is carried out to compare the performance of color reproduction methods, such as polynomial regression algorithm in different color space, and color checker passport. The results show that fourth order polynomial regression color reproduction in XYZ color space has the best performance.

Synthesis of multi-input multi-degree-of-freedom fixed shaft gear transmission configuration for vehicles

2021 ◽  
pp. 095440702110652
Author(s):  
Xueliang Li ◽  
Zhihang Wu ◽  
Shujun Yang ◽  
Jibin Hu ◽  
Zengxiong Peng
Keyword(s):  
Electric Vehicles ◽  
Rapid Development ◽  
Synthesis Method ◽  
Theory Model ◽  
Gear Transmission ◽  
Degree Of Freedom ◽  
Speed Ratio ◽  
Multiple Parameters ◽  
Transmission Mechanisms ◽  
Derivation Method

The rapid development of dual-clutch transmission (DCT) and hybrid and purely electric vehicles stimulate the researches on multi-input fixed shaft gear transmission mechanisms. The multiple degree-of-freedom (DOF) transmission mechanism can achieve a wider range of speed ratio adjustment and more modes under certain space and weight constraints, which is an ideal choice for multi gear transmission. In this paper, a synthesis method of fixed shaft gear transmission configuration is proposed. Based on the established graph theory model, kinematic characteristics of the fixed shaft gear transmission configuration are studied and the shift sequence is determined. Using these characteristics, a derivation method from the basic configuration to the comprehensive gears and shafts configuration is proposed. Multiple parameters such as the synchronizer arrangement and speed ratios are optimized. Finally, the proposed method is vigorously verified by a seven-speed DCT with four DOFs. This method is comprehensive and systematic in designing fixed shaft gear transmission configurations, which can be applied to DCT, transmissions for parallel hybrid electric vehicles, and to some novel multi-input transmissions.

scholarly journals Color Measurement and Analysis of Fruit with a Battery-Less NFC Sensor

Sensors ◽  
2019 ◽  
Vol 19 (7) ◽  
pp. 1741 ◽  
Author(s):  
Antonio Lazaro ◽  
Marti Boada ◽  
Ramon Villarino ◽  
David Girbau
Keyword(s):  
Low Cost ◽  
Near Field ◽  
Color Space ◽  
Cloud Service ◽  
Color Measurement ◽  
Classification Algorithms ◽  
Measurement And Analysis ◽  
Hue Angle ◽  
Color Data ◽  
The Magnetic Field

This paper presents a color-based classification system for grading the ripeness of fruit using a battery-less Near Field Communication (NFC) tag. The tag consists of a color sensor connected to a low-power microcontroller that is connected to an NFC chip. The tag is powered by the energy harvested from the magnetic field generated by a commercial smartphone used as a reader. The raw RGB color data measured by the colorimeter is converted to HSV (hue, saturation, value) color space. The hue angle and saturation are used as features for classification. Different classification algorithms are compared for classifying the ripeness of different fruits in order to show the robustness of the system. The low cost of NFC chips means that tags with sensing capability can be manufactured economically. In addition, nowadays, most commercial smartphones have NFC capability and thus a specific reader is not necessary. The measurement of different samples obtained on different days is used to train the classification algorithms. The results of training the classifiers have been saved to the cloud. A mobile application has been developed for the prediction based on a table-based method, where the boundary decision is downloaded from a cloud service for each product. High accuracy, between 80 and 93%, is obtained depending on the kind of fruit and the algorithm used.

An Analysis on Virtual Material Making and its Application in 3D Animation Designs

2011 ◽  
Vol 211-212 ◽  
pp. 1172-1175 ◽  
Author(s):  
Jie Fang
Keyword(s):  
Computer Games ◽  
Rapid Development ◽  
Three Dimensional ◽  
Pop Culture ◽  
3D Animation ◽  
Special Effects ◽  
Animation Industry ◽  
Computer Based ◽  
Design Software ◽  
Materials Used

Three-dimensional animation is one of the greatest contributions made by computer sciences to the animation industry. The 3D animation has been widely used in movie special effects, commercials, computer games and computer-based education (CBE), and has become a well-known form of art in the world's pop culture. The rapid development of 3D animation also brings about fundamental changes in the materials used in animation production. This paper gives an introduction of the virtual materials in 3D animation, as well as the tools needed and methods of making the materials using 3D animation design software, especially Maya.

A cost-effective programmable SoC for network security using Xilinx Spartan 3AN FPGA

2014 ◽  
Vol 12 (2) ◽  
pp. 280-291
Author(s):  
Wael M. El-Medany
Keyword(s):  
Network Security ◽  
Hardware Implementation ◽  
Low Cost ◽  
Rapid Development ◽  
Main Idea ◽  
Logic Gates ◽  
Cost Effective ◽  
Low Complexity ◽  
Data Encryption ◽  
Content Type

Purpose – With the rapid development in wired and wireless networks, the demand for network security system is rising rapidly due to more and more new applications introduced. The main factors that rate the encryption algorithms are its ability to secure and protect data against attacks, its speed and efficiency. In this paper, a reconfigurable network security design using multi-mode data encryption standard (DES) algorithm has been implemented with low complexity and low cost, which will also reduce the speed. The paper aims to discuss these issues. Design/methodology/approach – The design can be easily reconfigured to 3DES (triple DES) which is more secure and more powerful in encryption and decryption, as one of the trick in designing 3DES is to reuse three instances of DES. The design can be used for wired and wireless network applications, and it has been described using VHDL and implemented in a reconfigurable Programmable System-on-Chip (PSoC). The hardware implementation has targeted Xilinx Spartan XC3S700-AN FPGA device. Findings – The main idea of reducing the complexity for the hardware implementation is by optimizing the number of logic gates and LUTs of the design. The number of logic gates can be decreased by changing the way of writing the VHDL code and by optimizing the size of the chip. Originality/value – The design has been tested in simulation and hardware levels, and the simulation results and performance are discussed.

Extraction of Tobacco Leaves Color Features Based on HSI Color Space

2014 ◽  
Vol 651-653 ◽  
pp. 2424-2429 ◽  
Author(s):  
Jiang Tao Ji ◽  
Ming Li Deng ◽  
Zhi Tao He ◽  
Shi Tong Jia ◽  
Xin Wu Du ◽  
...  
Keyword(s):  
Statistical Method ◽  
Color Space ◽  
Tobacco Leaves ◽  
Growth Status ◽  
Average Value ◽  
Color Features ◽  
Quality Grade ◽  
Hsi Color Space ◽  
Different Levels ◽  
Color Components

Tobacco is widely planted worldwide as an important economic crop. The differences of planting environment and growth status in different regions lead to different levels of tobacco quality, while color is one of the important indexes to evaluate the quality grade of tobacco leaves. Even for those that are planted in the same area, colors of different grades of tobacco leaves vary greatly, so the color of tobacco leaves is often used as the main evaluating index in tobacco leaves grading. In this paper color extraction of standard tobacco leaves based on HSI color space was thoroughly studied. H, S and I component would be quantified and extracted by using color histogram, then the average value corresponding to every color component was calculated. After extraction and calculation on the same level of standard tobacco leaves, the ranges of three color components could be obtained in HSI color space by using statistical method, and provide data information for tobacco leaves grading.

Significance of Color Spaces & their Selection for Image Processing: A Survey

2021 ◽  
Vol 14 ◽  
Author(s):  
Mohd. Aquib Ansari ◽  
Dushyant Kumar Singh
Keyword(s):  
Full Range ◽  
Color Space ◽  
Color Spaces ◽  
Primary Color ◽  
Display Devices ◽  
Color Sensation ◽  
Real Time Applications ◽  
Selection For ◽  
Selection Of ◽  
Color Components

: The human visual system is encompassed with three components that help to produce a color sensation. The color display devices use this concept and create their full range of colors by incorporating all three primary color components. Any displayable color can be created with the help of these primaries. This paper comprises the concept of color space, which helps to understand a particular device’s color proficiencies. Since colors are a more robust descriptor, color spaces are considered to play a significant role in representing an image appropriately. The performance of many algorithms depends on the selection of an appropriate color space. There are many kinds of color spaces that can be used in real-time applications. These are RGB, nRGB, HSV, TSL, YCbCr, YUV, YES, CIE-XYZ, CMYK, etc. In this paper, color spaces and their vast classification are described in brief. Apart from these, the characteristics, applicability, limitations, mathematical conversion, and other essential factors are also explained for each color space.

An Animation Video Resource Conversion System Based on Supercomputers

2014 ◽  
Vol 596 ◽  
pp. 328-332 ◽  
Author(s):  
Kun Hua Zhong ◽  
Yu Wen Chen ◽  
Lei Feng Liu ◽  
Ju Zhang
Keyword(s):  
Network Traffic ◽  
Rapid Development ◽  
Mobile Internet ◽  
Video Playback ◽  
Animation Industry ◽  
Python Language ◽  
Video Frames ◽  
Conversion System ◽  
Super Computing ◽  
Serial Conversion

The rapid development of mobile internet has brought new opportunities to the development of the animation industry, but the network traffic bottlenecks animation video promotion. Based on the super-computing resources, using the Python language, adopting FFMpeg, OpenCV, HEVC and PyGTK technologies, we designed and implemented an animation video resource conversion system to solve the traffic bottleneck in this paper. The conversion system provides HEVC parallel conversion, video serial conversion, video frames extraction and video playback functions, effectively promoted the promotion of animation products distribution.

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