出价
发表于 2025-3-26 21:44:03
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反应
发表于 2025-3-27 02:00:52
The H.261 Video Coding Standard,n services have been constantly improving. For example, integrated services digital networks (ISDNs) may provide switched transmission services at data rates close to 2 Mbits/s. Second, the latest technology for the coding of video signals allows videoconferencing signals to be compressed down to 64
Ringworm
发表于 2025-3-27 09:13:43
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剥削
发表于 2025-3-27 11:56:45
RISC and DSP Cores,ISC or DSP core we imply a standard programmable processor, without the I/O pads, buffers, and associated circuitry. These parts are replaced by custom circuits that interface to the rest of the architecture. The main goal in using a processing core is to take advantage of existing hardware and soft
AUGUR
发表于 2025-3-27 15:59:44
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assail
发表于 2025-3-27 20:21:40
Hardware for Motion Estimation,a frame is coded based on its difference from another frame. In practice, frames are divided into blocks. For a block in the current frame (called the . block), motion estimation is the process of finding a block in the prior frame that matches best (according to a given criterion) its characteristi
无所不知
发表于 2025-3-28 01:49:12
Integrated Circuits for Video Coders,mponent such as the DCT processor and the variable-length coder was a separate chip. For example, in 1992, NEC introduced a three-chip set for MPEG-1 video encoding and decoding. The three ICs were an interframe coder (required only for video encoding), a transform and quantization processor, and a
micronutrients
发表于 2025-3-28 05:30:46
Multimedia Enhancements for RISC Processors,o in particular has the potential to become just another .. Realtime video processing on PCs and workstations is now handled with special video boards and custom circuits. This is similar to the way most of the advanced graphics processing was performed in the 1980s. Special hardware may yield the h
Junction
发表于 2025-3-28 06:43:21
Standards for Audio Compression,fficient compression of the audio data is as important as the efficient compression of the video data. There are two main parameters that control the quality and the bit rate of digital audio: the sampling resolution (that is, bits per audio sample) and the sampling frequency.
modifier
发表于 2025-3-28 13:04:48
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