GPU-Based Fourier Domain Optical Coherence Tomography System for Real Time Imaging of Human Skin

Fig. 4. Comparison of experimental results.(a)Finger image; (b) MATLAB processing result of finger image; (c) GPU+CPU processing result of finger image; (d) palm image; (e) MATLAB processing result of palm image; (f) GPU+CPU processing result of palm image

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Fig. 5. Speedup ratio comparison chart

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Table 1. Small data processing time of CPU+GPU hybrid programming
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Table 1. Small data processing time of CPU+GPU hybrid programming
Item Time/ms
Data read 107.8
CPU copy to GPU 5.8
CUFFT transform 199.4
Data copy from GPU to CPU 6.3
OpenCV display time 988.3

Table 2. Small data processing time of MATLAB programming
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Table 2. Small data processing time of MATLAB programming
Item Time/ms
Data read 107.8
FFT 5.8
Display 199.4

Table 3. Large data processing time of CPU+GPU hybrid programming
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Table 3. Large data processing time of CPU+GPU hybrid programming
Item Time/ms
Data read 1003.3
CPU copy to GPU 52.8
CUFFT transform 343.2
Data copy from GPU to CPU 51.2
OpenCV display time 8339.3

Table 4. Large data processing time of MATLAB programming
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Table 4. Large data processing time of MATLAB programming
Item Time/ms
Data read 484.9
FFT 122811.380
Display 445.2

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Shanshan Zhu, Wanrong Gao, Weisong Shi. GPU-Based Fourier Domain Optical Coherence Tomography System for Real Time Imaging of Human Skin[J]. Laser & Optoelectronics Progress, 2018, 55(4): 041701

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