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. 2018 Oct 28;2018:6241856. doi: 10.1155/2018/6241856

Figure 4.

Figure 4

(a) Screenshot of a MLLH bystander's position in image frame when algorithm provided poor detection results for compression rate of 150 cpm, R150P2. (b) Screenshots of low lighting conditions, LightP1. (c) Screenshot of LLH and noisy outdoor background, OSBR110P1. (d) Screenshot of the disturbance size when the algorithm failed to detect the compression rate in D2R110P1.