SPeed QameRa (SPQR) is an application which turns your device into regular speed camera. Measure speed of the objects (cars, bikes, motorbikes, boats and others) just with your mobile phone. All you need to know is the distance the object is traveling. You can take a photo, which shows if measure is correct: the speed, the distance traveled, the date and the location of the picture.
Main features:
• Measure the speed of the object using camera and GPS data
• Measure the distance using camera and GPS data

Notices:
1. To receive the most accurate results you need to provide accurate distance on which you measure the speed of the objects. To acquire this, follow these steps:
a. Take few initial measurements to correctly choose the end points of the measurements. Choose the points with the most uniform backgrounds, preferably similar one to another.
b. Provide accurate distance. Knowing the end points measure the distance between them. You can use standard instruments (like measuring tape), or you can use some fixed infrastructure elements like traffic posts along the road or dashed lines drawn on the road and by counting them obtain the distance. Then just input the data manually. If none of the above is possible, the application provides 3 additional ways to help you. However please bear in mind, that the accuracy of this methods might not be perfect:
i. Measure the distance using provided map.
ii. Measure the distance using camera. If you are unable to reach the area you measure, you can measure the distance completely remotely (but it should not be too far away from you. The accuracy of this method drastically lowers with distance). If you are located on some height, like on the pier above the water, add its height to your height. Please remember that this measurement method works when you are on the flat surface and you are leveled with moving objects. Precisely follow instructions on the screen: first calibrate the device, then provide your height and then, keeping the device on your eyes level, perform measurement.
iii. Measure the distance using GPS position. Please remember that standard GPS accuracy is 3 meters or more. When using this method wait until you have enough satellite number in range and good enough GPS signal accuracy. Preferably both should be marked in green on the screen.
c. Measure the speed. Set proper sensitivity levels for current light conditions at place you are measuring.
i. “Camera Sensitivity” tells how sensitive the detection process should be. The higher level, the smaller change detected at the measurement point triggers the measurement.
ii. “Object Precision” tells the sensitivity of object detection between two measurement points. The higher value, the object in the second measurement point must resemble closer the object in the first measurement point. This helps to distinguish objects, when two or more objects are racing at the same time. In poor conditions set sensitivity of the camera to higher value, while object precision to smaller. You need to experiment yourself with these settings.
iii. “Detection Field” tells how big the detection areas of the objects are. Usually, you want a bigger value. But if you measure some small objects or have efficiency problems with your device, you can use lower values.

SPQR application stores taken pictures (with premium option) in local memory, in /DCIM/SPQR or /SPQR directory, depending on Android version you use.

Disclaimer
Liability for damages
Use this application at your own risk. We accept no liability for any damages.

Legal notice
Make sure it is legal in your country to take such measurements.