JPH033099U - - Google Patents

Description

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing an embodiment of this invention, FIG. 2 is a block diagram showing a conventional image processing type traffic measurement device, and FIG. 3 is an explanatory diagram showing the process of image processing. In the figure, 1...A/D converter, 2...
Image memory, 3... Binary image memory, 4... Horizontal direction projection circuit, 5... Projection peak detection circuit, 6...
...Vehicle position determination circuit, 7...Video signal input, 8
...Vehicle position detection data, 9...Peak detection search direction setter, A...Gradation image, B...Binary image, C...Horizontal direction projection data, D...Vertical peak search direction. Note that the same reference numerals in each figure indicate the same or corresponding parts.

Claims (1)

[Scope of utility model registration request] An A/D converter that converts a video signal captured by a running vehicle from a TV camera into a digital signal;
An image memory that stores the digital signal of the D converter as a still image, a binary image memory that binarizes the gradation image of the image memory using a predetermined threshold and stores it as a binary image, and a binary image memory that stores the binary image horizontally. A horizontal projection circuit to project, a projection peak detection circuit that detects the peak of the horizontal projection circuit, a peak detection search direction setting device that determines the search direction for peak detection, and a vehicle position within the image that is determined from the peak detection result. An image processing device comprising a vehicle position determination circuit.