基于FPGA平台的JPEG解码器的改进与实现的开题报告.docx

基于FPGA平台的JPEG解码器的改进与实现的开题报告 摘要： JPEG是一种高效的图像压缩算法，广泛应用于图像和视频的压缩存储、传输等领域。本论文以FPGA平台为实现平台，针对传统软件实现的JPEG解码器在实时性、功耗等方面的不足，提出了一种基于硬件加速的改进方案。该方案采用了多级流水线结构、硬件并行计算、数据并行处理等技术，有效提升了JPEG解码器的性能和效率。 本文首先介绍了JPEG压缩算法的基本原理和流程，然后讨论了传统软件实现的JPEG解码器的局限性，包括速度慢、功耗大、难以应对高分辨率、高帧率等需求等问题。接着，本文详细分析了采用FPGA实现JPEG解码器的优势和挑战，包括高速并行计算能力、低功耗、可重构性等特点。针对以上问题，本文提出了基于硬件加速的JPEG解码器改进方案，主要包括多级流水线结构、硬件并行计算、数据并行处理等技术，通过对JPEG解码算法各个阶段的并行优化实现了性能的提升。最后，本文对所提出的解码器进行了FPGA实现和实验验证，证明了改进方案的有效性和优越性。 关键词：FPGA、JPEG、解码器、硬件加速、多级流水线、并行计算 Abstract: JPEG is an efficient image compression algorithm, which is widely used in the compression storage, transmission and other fields of images and videos. Taking FPGA platform as the implementation platform, this paper proposes a hardware-accelerated improved scheme for the JPEG decoders low real-time performance and power consumption. The scheme uses techniques such as multi-level pipeline structure, hardware parallel computing, and data parallel processing to effectively improve the performance and efficiency of the JPEG decoder. This paper first introduces the basic principles and processes of JPEG compression algorithm, and then discusses the limitations of traditional software-based JPEG decoders, including slow speed, high power consumption, and difficult to meet high resolution, high frame rate and other requirements. Then this paper analyzes in detail the advantage and challenge of using FPGA to implement the JPEG decoder, including high-speed parallel computing capability, low power consumption, reconfigurability and other characteristics. To solve the above problems, this paper proposes a hardware-accelerated JPEG decoder improvement plan, mainly including multi-level pipeline structure, hardware parallel computing, data parallel processing and other technologies. The parallel optimization of each stage of the JPEG decoding algorithm achieves the performance improvement. Finally, this paper implements and experimentally verifies the proposed decoder on FPGA, proving the effe