Patent ID: 8184863

Claim:
A multiple object speed tracking apparatus comprising: a camera positioned to capture images of a monitored area; a set of images of the monitored area that are generated by the camera; a computer system that can analyze the set of images to detect at least two moving objects that are moving simultaneously within the monitored area; wherein the computer system provides an on-site speed calibration process that includes a single process for transforming a single frame from the set of images into real world coordinates by considering, in a single step, the perspective of the image in a single frame from the set of images and the scaling of the image in the same single frame from the set of images; and an apparatus mount upon which at least one of either the camera or the computer system is positioned, wherein the apparatus mount is one of either a fixed mount or a mobile mount, and wherein a longitudinal axis of the camera may be positioned at any viewing angle in relation to a longitudinal axis of a roadway as long the viewing angle allows images of the at least two moving objects to be included in one of either a set of low resolution images or a set of high resolution images, wherein the computer system can substantially simultaneously determine a calculated rate of speed of at least two of the moving objects, wherein the computer system can compare the calculated rate of speed of the at least two moving objects to a predetermined speed value, wherein the computer system includes a homographic calibration process of determining the calculated rate of speed of the at least two moving objects that includes a linear fit comparison of a set of elements related to a distance traveled by the at least two moving object to a time taken for the at least two moving objects to travel that distance, and wherein the computer system includes a process to ensure better accuracy of the calculated speed of the moving object by not indicating an object has exceeded the predetermined speed value until determining that a value of a residue of the liner fit does not exceed a preset maximum value of the residue of the linear fit, and wherein a set of incident data is generated when the rate of speed of the at least two moving objects exceeds the predetermined speed value.