2014/10/16 上午 08:25:38

android Programming Glossary: tan

Perspective Projection in Android in an augmented reality application

http://stackoverflow.com/questions/16619104/perspective-projection-in-android-in-an-augmented-reality-application

simplify. The focal length f can be estimated knowing that tan 帢 w 2 f 1 A bit of Geometry You can see on the picture that.. CD EM EC X x f z 2 With both 1 and 2 we now have X x z w 2 tan 帢 If we go back to the notation used in the Wikipedia article.. Use Some remarks Usually 帢 90deg is used which means tan 帢 1 . That's why this term doesn't appear in many implementations...

How to measure height, width and distance of object using camera? [closed]

http://stackoverflow.com/questions/8698889/how-to-measure-height-width-and-distance-of-object-using-camera

to measure height width and distance of object using camera closed I referred lot many links but.. I want to measure my image height width and distance using camera. I found this app . I want to make this type.. requirement I want to measure my image height width and distance using camera. Can anyone give me suggest me the right way..

Perspective Projection in Android in an augmented reality application

http://stackoverflow.com/questions/16619104/perspective-projection-in-android-in-an-augmented-reality-application

of our eye in this configuration which I chose as origin to simplify. The focal length f can be estimated knowing that tan 帢 w 2 f 1 A bit of Geometry You can see on the picture that the triangles ECD and EBM are similar so using the Side Splitter.. are similar so using the Side Splitter Theorem we get MB CD EM EC X x f z 2 With both 1 and 2 we now have X x z w 2 tan 帢 If we go back to the notation used in the Wikipedia article our equation is equivalent to b_x d_x d_z r_z You can notice.. are the same so s_x r_x 1 . Note Same reasoning for Y . Practical Use Some remarks Usually 帢 90deg is used which means tan 帢 1 . That's why this term doesn't appear in many implementations. If you want to preserve the ratio of the elements you..

How to measure height, width and distance of object using camera? [closed]

http://stackoverflow.com/questions/8698889/how-to-measure-height-width-and-distance-of-object-using-camera

to measure height width and distance of object using camera closed I referred lot many links but still I am not able to get any point from that I can start.. I am not able to get any point from that I can start my development. I want to measure my image height width and distance using camera. I found this app . I want to make this type of application not exactly same but quite same but for my requirement.. of application not exactly same but quite same but for my requirement I want to measure my image height width and distance using camera. Can anyone give me suggest me the right way or any example so that I can get more idea about this requirement...