Camera systems and devices for ballistic parameter measurements in an outdoor environment

A ballistic detection system comprising:

• a first camera arranged with respect to a target volume to view the target volume from a first perspective defined by a first position and a first orientation of the first camera;
• a second camera arranged with respect to the target volume to view the target volume from a second perspective, the second perspective defined by a second position and a second orientation of the second camera;
• a lighting system comprising one or more light emitters configured and arranged to illuminate the target volume with light;
• a projectile detector, wherein the lighting system is configured to cause the one or more light emitters to illuminate the target volume with light in accordance with timing specified by the projectile detector;
• and
• a ballistics analysis computer communicatively coupled with the first and second cameras, wherein the ballistics analysis computer is configured to
• obtain image data captured by the first and second cameras,
• determine at least two points in three-dimensional space using intrinsic and extrinsic parameters of the first and second cameras, wherein the at least two points in three-dimensional space correspond to image artifacts of a projectile detected in the image data, the intrinsic parameters of the first camera characterize transformation between image plane coordinates and pixel coordinates for the first camera, the intrinsic parameters of the second camera characterize transformation between image plane coordinates and pixel coordinates for the second camera, and the extrinsic parameters of the first and second cameras relate the first perspective and the second perspective to each other,
• define a trajectory of the projectile within the target volume using the at least two points in three-dimensional space, and
• find a point of intersection of the trajectory of the projectile with an object associated with the target volume.