1、精選優(yōu)質(zhì)文檔-傾情為你奉上Prepared by: Lovedeep BrarProduct Development EngineerApproved by: Dilip KeraiProduct Development Manager Revision HistoryDateDescription18/10/10Draft Released02/02/11Update and Revision HistoryThe objective of this documentation is to define the steps to understand how to measure and c

2、alculate actual view angle of Brigade Camera (tested with minimum of 7 cameras)Measuring the angles of a CameraTesting Procedure-Measuring angles of each Camera model: Angles of camera gives information regarding how wide a camera can view. For this purpose Horizontal, Vertical and diagonal angles r

3、eading are measured.1) The test sample camera is mounted on a tripod as shown below in front of a white board wall. Draw horizontal and vertical lines on the white board as shown in Figure 1. A suitable display is attached to the camera for calculating the viewing angles. Draw horizontal and vertica

4、l lines on the camera screen as well shown in Figure 2.Figure 1 Draw horizontal and vertical line on white boardPower up the system with 12 or 24Vdc supply. Adjust the position of the camera so that horizontal and vertical lines on the screen and white board match as shown in figure 3a and 3b.Figure

5、 2 Draw horizontal and vertical line on screen.Figure 3a Make the screen and white board to matchFigure 3b2) Measure the length L between the camera lens and the white board as shown in figure 4a and 4b.Figure 4a LFigure 4b3) Turn the camera and display on and stack the camera horizontally on the tr

6、ipod as shown in figure 5a and 5b. By looking at the monitor put the marks on the white board horizontally as far as you can see on the display screen. Measure the distance between H between the two marks. Figure 5aFigure 5b4) Turn the camera and display on and stack the camera horizontally on the t

7、ripod as shown in figure 6a and 6b. By looking at the monitor put the marks on the white board vertically as far as you can see on the display screen.Measure the distance between V between the two marks.Figure 6aFigure 6b 5) Turn the camera and display on and stack the camera horizontally on the tri

8、pod as shown in figure 7a and 7b. By looking at the monitor put the marks on the white board diagonally as far as you can see on the display screen.Measure the distance between D between the two marks.Figure 7aFigure 7b6) Then implement the following formula to determine the view angle of the cameraCalculation for Diagonal Angle D H L Camera V angle a. Diagonal Anglei. Angle= tan-1(D/2*L)ii. Full Angle=2* Angle= 2*tan-1(D/2*L)In similar way Horizontal and Vertical angles can be calculatedb. Horizontal Anglei. Angle= tan-1(H/2*L)ii. Full Angle=2* Angle= 2*tan-1(H/