Description: TI关于DMA传输的程序代码，可用于视频编解码器在DSP平台上的优化-TI DMA transmission of the code can be used for video encoder and decoder in the DSP platform optimization Platform: |
Size: 6059563 |
Author:韩峥 |
Hits:
Description: TI关于DMA传输的程序代码，可用于视频编解码器在DSP平台上的优化-TI DMA transmission of the code can be used for video encoder and decoder in the DSP platform optimization Platform: |
Size: 6059008 |
Author:韩峥 |
Hits:
Description: 嵌入式图像采集处理与传输系统具有体积小、稳定性高等优点,在智能交通、电力、通讯、计算机视觉等领域应用广泛.随着DSP技术的发展,
在DSP上用软件实现实时视频压缩成为数字视频压缩标准应用的亮点,这种应用比起专门的压缩芯片更具有灵活性和升级潜力.
该文作者提出一种实现脱机视频采集、压缩编码和视频数据通信的方法.主要研究基于Tms320vc5402的视频编码器的软件实现方法和Tms320vc5402外围硬件系统设计.-Embedded image acquisition processing and transmission system has a small size, high stability, in the intelligent transportation, electricity, communications, computer vision and other fields are widely used. With DSP technology, used in the DSP software for real-time digital video compression video compression standard application of the bright spots in this application than the more specialized compression chip with the flexibility and upgrade potential. In this paper, the authors propose a realization of offline video capture, compression coding and video data communication method. major research based on the TMS320VC5402 video encoder software methods and realize TMS320VC5402 external hardware system design. Platform: |
Size: 4093952 |
Author:QHLee |
Hits:
Description: 用STC89LE52RC来模拟IIC总线对视频解码芯片SAA7114,多媒体数字信号编码器CS4272等进行初始化，为DSP的图像处理做基础-Used to simulate the IIC bus STC89LE52RC on video decoder chip SAA7114, multimedia digital signal encoder to initialize CS4272, etc., for the DSP to do the image processing based on Platform: |
Size: 2048 |
Author:MR G |
Hits:
Description: 基于编码TMS320DM642的MPEG4编码器设计与实现。为满足视频通信中视频压缩的需要，在对MPEG4视频编码标准研究的基础上，提出了基于TMs32ODM642
DSP的MPEG4视频编码器的实现方案，并讨论了代码优化的方法，通过相关实验对提出的方案进行了编验证。实验结果表明，该方案实现了对标准QCIF格式图像序列的MPEG4编码，编码速率达到25 fps，满足了实时码的要求，图像质量满足
了预期效果。-TMS320DM642-based encoding of the MPEG4 Encoder Design and Implementation. Video communications in order to meet the needs of video compression, in the MPEG4 video coding standard based on the research, TMs32ODM642DSP based on the MPEG4 video encoder realization of the program and discuss ways to optimize the code, through the relevant experimental program conducted on the proposed the provision of authentication. Experimental results show that the program achieved the standard QCIF format MPEG4 image sequence coding, coding rate reached 25 fps, to meet the requirements of real-time code, the image quality to meet the desired effect. Platform: |
Size: 162816 |
Author:H Simon |
Hits:
Description: 基于高速数字信号处理器(DSP) 和大规模现场可编程门阵列( FPGA) ,成功地研制了小型
化、低功耗的实时视频采集、处理和显示平台. 其中的DSP 负责图像处理,其外围的全部数字逻辑功能都集成在一片FPGA 内,包括高速视频流FIFO、同步时序产生与控制、接口逻辑转换和对视频编/ 解码器进行设置的I2 C 控制核等. 通过增大FIFO 位宽、提高传输带宽,降低了占用EMIF 总线的时间 利用数字延迟锁相环逻辑,提高了显示接口时序控制精度. 系统软件由驱动层、管理层和应用层组成,使得硬件管理与算法程序设计彼此分离,并能协同工作. 系统中的图像缓冲区采用了
三帧的配置方案,使得该平台最终具有对PAL/ N TSC 两种制式的全分辨率彩色复合视频信号进行实时采集、显示和处理的能力.-Based on high-speed digital signal processor (DSP) and large-scale field programmable gate array (FPGA), successfully developed a smaller, low-power real-time video capture, processing and display platform. One of the DSP is responsible for image processing, all its external digital logic functions are integrated in a FPGA, including high-speed video streaming FIFO, synchronous sequential generate and control, conversion and interface logic for video encoder/decoder to set up the control of nuclear and other I2 C. through increased FIFO bit width, increase the transmission bandwidth, reducing the time occupied by EMIF bus delay phase-locked loop using digital logic, Platform: |
Size: 546816 |
Author:John |
Hits:
Description: JPEG Demo with Loopback"DSP端（SEED-VPM642板卡上）实现1路D1格式视频采集、JPEG编码、JPEG解码及视频输出回放显示。-JPEG Demo with Loopback " DSP-side (SEED-VPM642 on board) one way to achieve D1 format video capture, JPEG encoder, JPEG decoder and video output playback display. Platform: |
Size: 143360 |
Author:chenheng |
Hits:
Description: 本论文首先系统地介绍了视频压缩编码的基本原理和方法，以及各国际标准
化组织提出的压缩标准；其次分析了JPEG和MPEG-4的主要技术，据此提出
MPEG-4简单框架编码器的软件实现方案，给出流程图，在VC++环境下用C语言
程序实现了JPEG压缩及MPEG-4简单框架的视频压缩功能，采用测试序列验证
无误，并对两种标准的压缩比进行试验对比，突出压缩的关键技术为DCT和运动
估计算法；接着深入研究了DCT变换、运动估计和补偿算法并进行了优化改进，
给出了用于快速匹配块的自适应十字模式搜索算法，并给出了对各种块匹配估计
算法的仿真结果。然后详细介绍了TI公司TMS320C6711DSP的软硬件特性，并
在此基础上提出系统的硬件实现方案。接着介绍了基于系统软硬件环境的移植问
题和优化方法，并针对算法移植和仿真过程中的问题进行了说明。
最后就课题设计过程中研究的结果予以总结，并阐述了以后课题研究的要点。-In this thesis,an introduction to video compression principal,methods and central
international video coding standards is done firstly.Then analyzing the core techniques
of JPEG and MPEG-4 and proposing a scheme of MPEG-4 SP encoder,the coding
function of JPEG and MPEG-4 is achieved in C successfully with test sequence Then
compare the compressed ratio of two standards,point out the key of compression is DCT
and Motion Estimation algorithm.Afterwards,studying the DCT/Motion
Estimation/Motion Compensation algorithm in detail and giving an adaptive rood
pattern search for fast Block-Matching motion estimation.Then the simulation of several
motion estimation algorithms based block-matching is given.Accordingly,a scheme of
a DSP-based video compression system is put forward,with the features of TI’s
TMS320C6711 DSP.At last,the transplant and optimization are considered on the basis
of soft and hard environments,also the simulation process.
In the end,the summarization about the Platform: |
Size: 1805312 |
Author:father2002 |
Hits:
Description: H.264视频编码器在DSP（数字信号处理器）上的设计方案，对视频压缩协议H.264实现的设计者有参考意义。-H.264 video encoder in the DSP (digital signal processor) on the design, implementation of the H.264 video compression protocol designers have reference value. Platform: |
Size: 660480 |
Author:杨林 |
Hits:
Description: AVS视频编码器的模块算法优化及其在DSP上的实现，需要CAJViewer阅读-AVS video encoder module algorithm optimization and its implementation in the DSP, need to read CAJViewer Platform: |
Size: 4480000 |
Author:忍着 |
Hits:
Description: 韩国ADC公司的一款用于动漫产品开发的，超强图像引擎SoC，带有DSP功能, 支持：H.264 decoder, JPEG decoder, 2D graphic engine,
sound mixer, CRT controller with OSD, video encoder, video decoder interface module, USB host/device and I/O peripheral
components.-ADC for a Korean animation company' s product development, superior graphics engine SoC, with DSP functionality to support: H.264 decoder, JPEG decoder, 2D graphic engine, sound mixer, CRT controller with OSD, video encoder, video decoder interface module, USB host/device and I/O peripheral components. Platform: |
Size: 3415040 |
Author:ipigle |
Hits:
Description: ：MPEG-4是当前最具影响的多媒体数据压缩编码国际标准。针对视频编码过程中计算复杂度高，系统运算量大等
特点，本文提出了在TMS320C6416T上实现MPEG-4编码的优化方法。为使MPEG-4编码器达到实时应用的要求，结
合C64x DSP的特点，采取了一系列软件优化方法，包括合理分配存储器，在内存开辟双缓冲区结构，用汇编程序实现
MPEG-4的核心算法以及对整个程序流程进行C语言级优化等。实验结果表明，该编码器可以对768 pixel×576 pixel，
25 frame／s的视频图像进行实时编码。-MPEG-4 iS one of the most important and influential international multimedia data compression
encorders．To meet the demands of a video encoding for the large computation load and strong
computing power，a optimized encoding method of MPEG-4 based on TMS320C6416T is presented．
According to the characteristics of C64x DSP，severaI kinds of methods for software optimization are
proposed，which includes allocating memories in reason，setting two buffers in a memory based on the
characteristic of EDMA．realizing a core code by linear assembly language and optimizing C language
for whole programs．Experimental results show that the encoder CaR realize real—time encoding for rid—
eo images with 768 pixel X 576 pixel，in 25 frame／s。 Platform: |
Size: 482304 |
Author:陈晓娟 |
Hits:
Description: 硕士毕业论文《MPEG4-ASP视频编码器算法设计
及DSP实现》：研究和实现了MPEG4-ASP视频编码标准的关键算法——运动估计和全局运动估计，掌握了视频压缩编码的核心技术以及在通用DSP平台上实现视频编码器的技术要点并实现了编码器的原型，为MPEG4-ASP编码在嵌入式领域的实际应用和开发奠定了基础。
-In chapter one and two, we mainly introduce the basic principle of video compression and the video compression standard up to now. In chapter three, we introduce the profile/level in the mpeg4 standard and focus on the discussion of new charcters. In chapter four, we make a detai research and improvement on the key arithmetic module in MPEG4—Motion Mstimation and Globle Motion Estimation, and adopt improved PMVFAST method and a motion vector based no-iterative global motion estimation method in the codec. The experiment proves that the choosed methods are much more efficient than traditional ones. In chapter five, we discuss the DSP implementation of MPEG4-ASP video codec. Considering the hardware platform, we do the software structure design, data movement and memory, cache arrangement. We also do the software pipeline and assmble language optimization. The encoder now can get the achievement of encoding the CIF format frames 20fps. In the last part of the paper, we make a short conc Platform: |
Size: 443392 |
Author:刘洛丹 |
Hits:
Description: 基于BIOS/DSP的嵌入框架，将MT9M001的CMOS图像传感器连接至DM642的一个VP口上，并实现RAW数据流采集，使用SAA7105H视频编码器编码成ITU-BT656格式的视频流，实现AV和VGA实时显示(The embedded framework based on BIOS/DSP and CMOS image sensor MT9M001 is connected to a DM642 port VP, and implement the RAW data stream capture, using SAA7105H video encoder encoding into ITU-BT656 format video stream to achieve AV and VGA real-time display) Platform: |
Size: 1704960 |
Author:`椰子
|
Hits:
Search - DSP video encoder