FPGA加速卡实现视频处理

来源：未知日期：2023-05-10 浏览：

FPGA加速卡在视频处理编码中的应用潜力，可以实现高效、高质量和低功耗的视频编码，利用硬件加速器和高速存储器实现了视频编码的加速。
将视频传输到图①FPGA加速卡：

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例：首先需要将待处理的视频传输到FPGA加速卡中。这可以通过PCIe接口或其他数据传输协议来实现。

图片展示了该实验的系统框架和FPGA加速卡的结构，同时也展示了实验中的一些测试结果，包括编码时间、码率和图像质量等指标。

Fig. 1. -
Ultrasound and OCT. The ultrasound on the top left shows axial length (yellow line). The ultrasound on the top right highlights the lateral rectus (red) and Argus EOC (yellow). The OCT scan on the bottom shows the implant, fibrotic tissue, and retinal morphology. Due to its composition, fibrotic tissue appears hyper reflective. Electrodes (white arrows) reflect light from the source, casting dark shadows on the underlying tissue.

可以使用FPGA加速卡中的图像处理单元对视频进行降噪、锐化、色彩校正等处理
Fig. 5. -
(a) The nerve fiber trajectories [24] with location of electrode array. (b) Sample population of angled neurons (n = 250) beneath a single electrode. (c) Schematic of retinal ganglion cell geometry [25] and channel properties [26]. L refers to region length and d to region diameter.

Fig. 5. -
(a) The nerve fiber trajectories [24] with location of electrode array. (b) Sample population of angled neurons (n = 250) beneath a single electrode. (c) Schematic of retinal ganglion cell geometry [25] and channel properties [26]. L refers to region length and d to region diameter.

完成视频处理后，需要将视频重新编码为所需的格式。这可以通过使用专门的编码器，例如H.264或HEVC编码器，来实现。与解码器类似，FPGA加速卡可以通过硬件加速来提高编码效率。

Fig. 8. -
Contour plots showing RGC threshold distribution beneath electrodes A5, B8, and F4. Cell bodies (n = 250) are white dots, and electrodes are outlined.

Fig. 8. -
Contour plots showing RGC threshold distribution beneath electrodes A5, B8, and F4. Cell bodies (n = 250) are white dots, and electrodes are outlined.

最后，处理完的视频可以传回主机，从而完成整个视频处理加速的过程。

FPGA加速卡通过在硬件级别上对视频进行加速来提高视频处理效率。具体实现过程需要根据应用场景和具体的视频处理任务进行相应的定制，在视频编码中的应用潜力，可以实现高效、高质量和低功耗的视频编码。