Description: Wavelets have widely been used in many signal and image processing applications. In this paper, a new
serial-parallel architecture for wavelet-based image compression is introduced. It is based on a 4-tap wavelet
transform, which is realised using some FIFO memory modules implementing a pixel-level pipeline
architecture to compress and decompress images. The real filter calculation over 4 · 4 window blocks is
done using a tree of carry save adders to ensure the high speed processing required for many applications.
The details of implementing both compressor and decompressor sub-systems are given. The primarily analysis
reveals that the proposed architecture, implemented using current VLSI technologies, can process a
video stream in real time.-Wavelets have been widely used in many sign al and image processing applications. In this p aper. a new serial-parallel architecture for wavele t-based image compression is introduced. It is based on a 4-tap wavelet transform. which is realized using some FIFO memory module 's implementing a pixel-level pipeline archite cture to compress and decompress images. The're al filter calculation over 4 blocks window is done using a tree of carry save adders to ensure t he high speed processing required for many appl ications. The details of implementing both com pressor decompressor and sub-systems are give n. The primarily analysis reveals that the prop osed architecture, VLSI implemented using current technologies, can process a video stream in real time. Platform: |
Size: 2837459 |
Author:sdfafaf |
Hits:
Description: 这是我做的毕业设计，是基于DSP的数字图象压缩系统的实现。本系统能很好的压缩图象，系统运行时间快，压缩比也比较高。其中采用JPEG标准对图象进行压缩，使用了Huffman算法。-This is what I am doing graduate design is based on the DSP digital image compression system is achieved. The system can be a very good image compression, faster system running time, the compression ratio is relatively high. Which use JPEG standard for image compression, the use of the Huffman algorithm. Platform: |
Size: 161978 |
Author:高燕 |
Hits:
Description: Wavelets have widely been used in many signal and image processing applications. In this paper, a new
serial-parallel architecture for wavelet-based image compression is introduced. It is based on a 4-tap wavelet
transform, which is realised using some FIFO memory modules implementing a pixel-level pipeline
architecture to compress and decompress images. The real filter calculation over 4 · 4 window blocks is
done using a tree of carry save adders to ensure the high speed processing required for many applications.
The details of implementing both compressor and decompressor sub-systems are given. The primarily analysis
reveals that the proposed architecture, implemented using current VLSI technologies, can process a
video stream in real time.-Wavelets have been widely used in many sign al and image processing applications. In this p aper. a new serial-parallel architecture for wavele t-based image compression is introduced. It is based on a 4-tap wavelet transform. which is realized using some FIFO memory module 's implementing a pixel-level pipeline archite cture to compress and decompress images. The're al filter calculation over 4 blocks window is done using a tree of carry save adders to ensure t he high speed processing required for many appl ications. The details of implementing both com pressor decompressor and sub-systems are give n. The primarily analysis reveals that the prop osed architecture, VLSI implemented using current technologies, can process a video stream in real time. Platform: |
Size: 2837504 |
Author:sdfafaf |
Hits:
Description: 这是我做的毕业设计，是基于DSP的数字图象压缩系统的实现。本系统能很好的压缩图象，系统运行时间快，压缩比也比较高。其中采用JPEG标准对图象进行压缩，使用了Huffman算法。-This is what I am doing graduate design is based on the DSP digital image compression system is achieved. The system can be a very good image compression, faster system running time, the compression ratio is relatively high. Which use JPEG standard for image compression, the use of the Huffman algorithm. Platform: |
Size: 322560 |
Author:高燕 |
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: 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: 本文介绍了JPEG2000的静态图像压缩技术在TI TMS320DM642 DSP上的实现过程；对压缩技术核心小波算法结构进行改进，对硬件特点的程序结构、具体代码及总线读写等方面的改进作了详细描述．改进后的软件系统，对于1 024×768像素大小的图像、数据存储空间仅需6 KB，使得在资源有限的DSP芯片上能够运行JPEG2000图像压缩技术；编码速度相对于未改进的提高了l2～ 2O倍，可迭到3帧／s；压缩比为O．5 bit／p时，峰值信噪比可达到3O．-This paper introduces the JPEG2000 still image compression technology in the TI TMS320DM642 DSP Implementation process on wavelet compression technology is the core algorithm to improve the structure of the hardware features of the process structure, read and write the specific code and bus improvements, such as was described in detail . The improved software system, for 1 024 × 768 pixel image size, data storage space only 6 KB, allows limited resources to run the DSP chip JPEG2000 image compression technology encoding speed is not improved relative to the improvement of the l2 ~ 2O-fold, again and again to be 3/s compression ratio for O. 5 bit/p, the peak signal to noise ratio can be achieved 3O. Platform: |
Size: 243712 |
Author:H Simon |
Hits:
Description: 本程序可以实现DSP的图像实时压缩，而且是标准压缩JPEG ，从编码到解码，是全套过程，使用性很强
-This procedure can be achieved in real-time DSP image compression, and compression standards JPEG, from encoding to decoding, is a full set of the process, the use of highly Platform: |
Size: 367616 |
Author:范范 |
Hits:
Description: 基于H.263的图像压缩编解码的C源码，在CPU为586以上的PC上能够实时完成压缩、解压缩算法，并可以很容易地移植到TI的DSP上.-Image compression based on H.263 codec in C source code, in the CPU for more than 586 real-time on a PC to complete the compression, decompression algorithms, and can be easily ported to TI' s DSP,. Platform: |
Size: 156672 |
Author:伍博 |
Hits:
Description: 基于DSP的低码率视频图像压缩与传输系统设计示例 基于DSP的低码率视频图像压缩与传输系统设计-Based on DSP low bit rate video image compression and transmission system design Platform: |
Size: 1647616 |
Author:DAVE |
Hits:
Description: 基于DSP技术的视频图像压缩系统的实现及研究-Based on DSP technology video image compression system realization, and research Platform: |
Size: 1953792 |
Author:DAVE |
Hits:
Search - image compression on DSP