Abstract: The invention relates to a device for data storing with a compression coding and/or decoding device for the storing of picture data in a compressed or decompressed data format in a data memory. The compression coding and decoding device is adapted to mark or label and subsequently specific retrieve picture segments. This permits individual compression or decompression of labelled picture segments. In a method of storing picture data in a compressed or decompressed data format in a data storing memory, the picture data are divided into data segments. The location information of the data segments is stored. The method and device is preferably used in traffic monitoring installations. The picture data are camera data of a digital camera taking pictures of a traffic situation and a violating vehicle, when traffic regulations are violated such as by speeding. The device and method of the invention permits, for example, to decompress individually the picture segment showing the license plate of a violating vehicle.

Abstract: Digital pictures are taken by a digital camera. The digital camera provides picture data with a large dynamic range of, for example, 10 bit. Data processing and display devices operate with 8 bit only, i.e. do not take advantage of the high dynamic range of the camera. This is important in traffic monitoring installations, where, on one hand, the driver in a relatively dark passenger compartment of a vehicle and, on the other hand, the bright license plate have to be recognized to provide evidence in court. For this reason, a dark picture and a bright picture are derived from the picture data provided by the camera. This is done by reading, on one hand, the eight least significant digits and, on the other hand, the eight most significant digits of the camera output to provide the dark and bright pictures, respectively. The dark and bright pictures thus obtained are balanced against color, gray, contrast or brightness values of histograms derived from previous pictures.

Abstract: Digital pictures are taken by a digital camera. The digital camera provides picture data with a large dynamic range of, for example, 10 bit. Data processing and display devices operate with 8 bit only, i.e do not take advantage of the high dynamic range of the camera This is important in traffic monitoring installations, where, on one hand, the driver in a relatively dark passenger compartment of a vehicle and, on the other hand, the bright license plate have to be recognized to provide evidence in court. For this reason, a dark picture and a bright picture are derived from the picture data provided by the camera. This is done by reading, on one hand, the eight least significant digits and, on the other hand, the eight most significant digits of the camera output to provide the dark and bright pictures, respectively. The dark and bright pictures thus obtained are balanced against color, gray, contrast or brightness values of histograms derived from previous pictures.

Abstract: In a method for traffic monitoring, data related to a traffic situation is measured. A picture of a traffic scene related to the traffic situation is generated on a photographic film. The data is recorded on the photographic film by converting the data to a first set of binary energizing signals which is energizing recording arrangements, so as to generate a numeric or alphanumeric representation of the data on the film in a first recording field thereof. The data is converted to a second set of binary energizing signals which energizes a recording arrangement, so as to generate a neither numeric nor alphanumeric pattern on the film in a second recording field.

Abstract: A device for monitoring traffic is designed as a portable hand-held device and includes a measuring unit for measuring a traffic state such as speed of a vehicle, a microphone and a language or voice recorder. Furthermore, the device has a language generator which acoustically outputs the measuring result of the measuring unit. The acoustically output measuring result is also recorded by the language or voice recorder. This permits acoustic documentation of the measuring procedure and its circumstances.

Abstract: A photographic traffic monitoring device comprises a sensor responding to passing vehicles, for example, an induction loop imbedded in the road for monitoring traffic lights or a Doppler radar. From a signal evaluation it is determined whether a detected vehicle has violated a traffic regulation, e.g. exceeded the allowed maximum speed limit. When such a violation takes place, a camera is automatically released and the monitored vehicle is photographed. In order to collect data for statistical purposes about traffic events obtained with such devices, a memory function is provided. This function records events detected by the device, events which are not restricted to violations of traffic regulations.

Abstract: A traffic monitoring device mounted in a moving monitoring vehicle comprises a radar device for measuring the relative speed of a vehicle to be detected with respect to the speed of the monitoring vehicle. A speedometer measures the speed of the monitoring vehicle. By means of a releasing mechanism automatically triggered at adjustable limit speeds, a camera is released and the vehicle to be detected is photographed. The relative speed of the vehicle to be detected and the speed of the monitoring device are added in summing means. The sum then corresponds to the absolute speed of the vehicle to be detected. The camera is not released dependent on the relative speed but on the absolute speed of the vehicle to be detected. Thereby, all vehicles exceeding an allowed speed are detected without taking an unnecessary number of pictures.

Abstract: In a stationary traffic monitoring device a housing is fixedly installed at a place of operation. An insert having a recording camera and control and evaluation unit is adapted to be optionally inserted into the housing. The data specific for the operation site, for example identification sign of the operation site, switch-off times or the delay times required for the operation site, are memorized in a housing-fixed memory and are automatically transferred to the control and evaluation unit when the insert is inserted into the housing.

Abstract: With a traffic monitoring device for photographic recording of vehicles exceeding a predetermined speed, the speed of the approaching traffic is measured substantially against the travelling direction. The vehicles (12) are photographed frontally when they exceed the predetermined speed. Two speed measurements are effected: A first measuring value is obtained in a relatively short part of the available measuring section (22) on the entrance side and serves to release a camera (18). A second measuring value evaluates all speed measuring values occuring in the measuring section (22), in which the vehicle (12) is detected by the radar beam (20). This second measuring value is recorded.