Posts Tagged ‘Human Visual System’:

Research on Evaluation Model of Human Vision in Stereo Video Based on Multi-scale Analysis and Similarity

Stereo video quality assessment is the basement of perception and display and also the foundation of stereo video system design. The subjective methods for stereo video quality are consistent with the results of human subjective perception, but because of its poor stability, poor portability, time-consuming, costly, it will be greatly limited in practice. The existing

(Read More…)

JND Model and Its Application in Video Coding

on May 7th, 2013 by - Comments Off

Traditional video coding is based mainly on statistical correlation to remove the spatial and temporal redundancy, achieving better compression results as efficiently as possible. However, as the final recipient of the video, the human visual system (HVS) contains the perception redundancy as a result of the visual properties. In order to achieve the perception redundancy,

(Read More…)

Research and Application of Digital Image Watermarking Algorithm Based on DCT Domain

With the rapid development of the communication technology and the multimedia technology, the multimedia information intercommunion has become more extensive and the information transfer has become more expedite. However, the replication of digital information is relatively simple and the digital works has characteristic of easily to be illegal used and tampered. The modified of copyrighted

(Read More…)

Research and Application of Digital Image Watermarking Algorithm Based on DCT Domain

With the rapid development of the communication technology and the multimedia technology, the multimedia information intercommunion has become more extensive and the information transfer has become more expedite. However, the replication of digital information is relatively simple and the digital works has characteristic of easily to be illegal used and tampered. The modified of copyrighted

(Read More…)

Research on Watermarking Algorithm for Color Images in the Wavelet Transform Domain

With the development of society and the progress of science and technology, digitization has become an important means of information, but without distortion and unlimited copies of the natural characteristics of digital technology has caused severe threat to the lawful rights and interests of the digital product owner, the copyright protection of digital products become

(Read More…)

The Video Quality Assessment Technique Based on the HVS Characteristic

Digital video image compression and transmission technology will result indifferent degrees of distortion. Therefore, assessment of video quality in video compression, processing, and video communications have very important significance, especially the automated quality assessment technology plays an important role in various applications. The existing quality assessment techniques are mainly divided into two categories, the subjective

(Read More…)

Research on Fragile Watermarking Based on Image Authentication

Digital watermarking technology can embed copyright information that is on behalf of theowner’s identity into the digital products to achieve copyright protection, content authentication andso on. Therefore, the digital image watermarking technology has become a hot topic. According tothe requirements of digital image content authentication, this thesis puts forward two types ofwatermarking algorithms: One is

(Read More…)

Study on the Color Spatial Frequency Response of the Hunman Visual System

The contrast sensitivity function (CSF) is a measure of the vision ability to discern thedifferences of various frequency sinusoidal patterns. Generally, there are luminance andcolor contrast sensitivity functions. Based on the definition of contrast sensitivity, thispaper focuses on the chroma and hue contrast sensitivity of human vision, while thechroma and hue are defined in the

(Read More…)

Study on the Color Spatial Frequency Response of the Hunman Visual System

The contrast sensitivity function (CSF) is a measure of the vision ability to discern thedifferences of various frequency sinusoidal patterns. Generally, there are luminance andcolor contrast sensitivity functions. Based on the definition of contrast sensitivity, thispaper focuses on the chroma and hue contrast sensitivity of human vision, while thechroma and hue are defined in the

(Read More…)

Research of the Characteristic Parameters Influencing the Visual Comfort of Stereoscopic Images

The stereoscopic technology of imaging,compression,and display is the focus in domestic and foreign research.Compared with viewing 2D images,the stereoscopic images can provide space depth information of scene,a more immersive experience, and have a bright future in applications,such as science,military,education, industry,medical,entertainment and so on.Yet,the viewers will feel visual uncomfort if they watch the stereoscopic images for

(Read More…)

© IT Research Paper