YangShuangFangZhenSpringer Berlin HeidelbergS. Yang, Z. Fang, Primary quality factor estimation in double compressed JPEG images using quantization error, Advances on Digital Television and Wireless Multimedia Communications, Shanghai, 2012, 133-139
Book 2001, Multimedia CommunicationsCHI-MIN LIU, WEN-WHEI CHANG Chapter Video Coding: Fundamentals 2.6.4 Vector Quantization Vector quantization (VQ) is a block-based spatial-domain method that has become very popular since the early 1980s. In VQ, the input image data is first decomposed into...
the commonly used metrics, such as MSE and cosine distance, are not efficient in finding optimal quantization scale parameters. Therefore, the authors propose PTQ4ViT by employing twin-uniform to minimize the quantization error and Hessian-guided method...
1. Introduction Nearest neighbor search is one of the fundamental prob- lems in multimedia systems. Given a query point, the goal entails finding the most similar item to the query in a dataset. Accuracy and speed are two key aspects in retrieval systems, however, with explosive growth of ...
Graphic models represented by 3D polygonal mesh (with geometry, color, normal vector, and texture coordinate information) are now heavily used in interactive multimedia applications. As an international standard, MPEG-4 3D mesh coding (3DMC) is a compression tool for 3D mesh models. Texture ...
As an example shown in Fig. 2.29, where we set VR = 5 and b1b0 = 10, the ADC output is expected to be V0=5×121×1+122×0=2.5V. As we can see, the recovered voltage of V0 = 2.5 V introduces voltage error as compared with Vin = 3 V, as discussed in the ADC stage. Th...
Its use has been increasing exponentially in the last decades. Its applications range from medicine to entertainment, passing by geological processing and remote sensing. Multimedia systems, one of the pillars of the modern information society, rely heavily on digital image processing. The discipline ...
The high-efficiency video coder (HEVC) is one of the most advanced techniques used in growing real-time multimedia applications today. However, they requir... K Kumar,M Abouhawwash,MMA Hogo - 《Computers Materials & Continua》 被引量: 0发表: 2022年 加载更多来源...
20060013321Packet generating method, video decoding method, media multiplexer, media demultiplexer, multimedia communication system and bit stream converterJanuary, 2006Sekiguchi et al. 6981073Multiple channel data bus control for video processing2005-12-27Wang et al. ...
Author Unknown, “Series H: Audiovisual and Multimedia Systems, Infrastructure of audiovisual services—Coding of moving video, High efficiency video coding,” H.265, Apr. 2013, 317 pages, ITU-T Telecommunication Standardization Sector of ITU. ...