Underwater Stereo-Camera Survey Methodology for Estimating Density and Size of Northern Abalone (Haliotis kamtschatkana)

Rooper, Christopher N.; MacNeill, Shaun; Lee, Lynn; McNeill, Dan; Yamanaka, K. Lynne; Towler, Richard H.; Williams, Kresimir

doi:10.2983/035.040.0209

Cited by 2 publications

(1 citation statement)

References 21 publications

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“…At present, in the normal shooting background environment, the specific adjustment multiple can clearly distinguish the objects sensed in front, but if it exceeds the farthest point, the recognized image will be blurred. Therefore, for the layout of monitoring cameras in the non-direct-view area of substation, in addition to reasonably adjusting the parameters such as pixel number, focal length, CMOS of photosensitive elements and shooting size, it is necessary to calibrate the farthest point by edge coverage [9]. This time, we can first combine the camera and the photosensitive principle, and determine that the number of pixels is NcmosH ×NcmosW, and the distance between the farthest recognition point and the current position generally needs to be kept between 10.5 and 13.5 m, which is the best.…”

Section: Set the Farthest Identification Point Of The Cameramentioning

confidence: 99%

Research on layout method of monitoring camera in non-direct-view area of substation

Li,

Zhang,

Chen

et al. 2024

Eighth International Conference on Energy System, Electricity, and Power (ESEP 2023)

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At present, the layout model of monitoring cameras in non-direct-view areas is generally target-oriented, and the coverage of monitoring cameras is limited, which leads to the reduction of the recognition extension ratio of the sensing range of monitoring cameras. Therefore, the design and research on the layout method of monitoring cameras in non-direct-view areas of substations are proposed. According to the current test requirements, the farthest identification point of the camera is set first, and the effective sensing area of the non-direct-view area is calculated. Based on this, the limitation of the surveillance camera coverage is broken by adopting a multi-target method, and an adaptive multi-target surveillance camera layout model is designed, and the camera layout is realized by adopting a "flat package vertical" correction processing method. The final test results show that: after three stages of auxiliary testing, the extension ratio of the detection range of the monitoring camera can reach above 6, which shows that the monitoring camera layout method in the nondirect-view area of the substation is more efficient, specific, targeted and has practical application value with the help of intelligent technology, predictive auxiliary structure and virtual interference processing technology.

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Section: Set the Farthest Identification Point Of The Cameramentioning

confidence: 99%