CN104157025A - Vision enhancement and driving recording integrated vehicle apparatus and vision enhancement method - Google Patents

Abstract

The invention discloses a vehicle-mounted device integrating vision enhancement and driving record and a vision enhancement method in the field of image technology. Wherein the main frame of said on-vehicle device is respectively connected with data analyzer, display and switch; Data analyzer is connected with vehicle speed sensor; Infrared camera is connected through image intensifier and switch; The vehicle speed information is displayed on the monitor; the image enhancement software reads the video from the infrared camera, judges whether the video needs to be enhanced, and after the enhanced video is processed, it is displayed on the host monitor. The device integrates visual enhancement and driving recording, and records relevant information such as images and sounds while the vehicle is driving. While driving while walking, record the time, speed, and location in the video, and can enhance the degraded video, so that clear video recording can be obtained even in harsh environments such as fog. The device of the invention can improve driving safety, increase driving pleasure, provide reliable evidence for traffic accidents, and has broad market prospects.

Description

In-vehicle device integrating vision enhancement and driving record and vision enhancement method

technical field

The invention belongs to the technical field of image processing, and in particular relates to a vehicle-mounted device integrating vision enhancement and driving record and a vision enhancement method.

Background technique

With the development of social economy, modern means of transportation are playing an increasingly important role, and disputes over traffic accidents have become a headache. On May 1, 2004, my country officially promulgated and implemented the "Road Traffic Safety Law of the People's Republic of China" and its supporting "Regulations for the Implementation of the Road Traffic Safety Law". Article stipulates: "Passenger vehicles, heavy-duty trucks, and semi-trailer tractors used for road operations shall install and use driving recorders that meet national standards. Traffic police may monitor the speed, continuous driving time and other driving conditions of motor vehicles Carry out inspections. The installation of driving recorders can be implemented step by step, and the implementation steps will be stipulated by the competent department of motor vehicle products under the State Council in conjunction with relevant departments.” This is the first time that my country has proposed the installation and use of driving recorders in legal form.

The driving recorder is installed in the car, which can record the video images and sounds of the whole process of running the car, which can provide evidence for traffic accidents. For many people who cross the road and those who ride bicycles and motorcycles on the road, if they have a scratch with them, they are likely to be extorted. If there is a driving recorder, the driver can provide for himself Effective evidence to safeguard their legitimate rights and interests. By replaying the surveillance video records, the responsibility for the accident is clear at a glance, and the traffic police handle the accident quickly and accurately. They can quickly evacuate the scene and restore traffic, and retain effective evidence at the time of the accident, creating a safe and smooth traffic environment. If a driving recorder is installed on every vehicle, the driver will not dare to drive illegally, and the accident rate will be greatly reduced. The vehicle causing the accident will be captured by the driving recorder of other vehicles, and the traffic hit-and-run cases will be greatly reduced. In the case of professional collision and road robbery, the driving recorder can provide decisive evidence to solve the case: the scene of the accident and the appearance of the criminal. People who like to travel by car can also use it to record the process of conquering difficulties and obstacles. When driving, record the video while walking, and record the time, speed, and location in the video at the same time, increasing driving fun. It can also be used at home as a DV to shoot the fun of life, or as a home monitor, and it can also be used as a parking monitor at ordinary times.

At present, most of the driving recorders on the market only play the role of driving record during the day when the environment is better, and they can only "dumb" and lose their voice at night and in bad weather such as heavy fog. At night, if the ability to supplement light is limited, the picture will be rough, and in foggy days, even if the camera quality is high, the image clarity is still very low. Night and foggy days are also the periods of frequent traffic accidents. The function of the driving recorder is destined to be a tool for all-weather use, because we will not stop driving because of darkness or fog, so the driving recorder not only It is necessary to capture clear driving pictures under good lighting conditions and good visibility during the day, and it is also necessary to be able to complete video shooting tasks in dark and low-light environments. When hardware equipment cannot meet this requirement, the emergence of image enhancement software makes up for this deficiency. A vehicle-mounted device integrating vision enhancement and driving record proposed by the present invention can enhance video at night or in bad weather, improve driving safety, and facilitate traffic police to handle accident disputes in bad weather.

Contents of the invention

The purpose of the present invention is to provide a vehicle-mounted device and a visual enhancement method that integrates visual enhancement and driving record for current domestic and foreign driving recorders that cannot obtain relatively clear video images at night and in bad weather; its features In that, the host computer of the vehicle-mounted device is respectively connected to a data analyzer, a display and a switch; the data analyzer is connected to a vehicle speed sensor; the infrared camera is connected to an image intensifier and a switch;

The host is composed of a microprocessor connected to a data memory, a real-time clock, a positioning system, operation keys, a display, a data communication interface and a switch controller;

The data analyzer is composed of data analysis software; the image intensifier is composed of image enhancement software.

A visual enhancement method for vehicle-mounted equipment that integrates visual enhancement and driving records, is characterized in that first, the driving information of the vehicle is collected through a vehicle speed sensor, and the collected data is sent to a data analyzer for analysis and processing by data analysis software, input to the host, and display the driving video of the vehicle in real time on the display, and display the time, speed and location information; secondly, the video information obtained by the infrared camera is transmitted in two ways, one is sent to the host data storage for storage, and the other is transmitted through the data communication interface. The video image data is imported and exported to the microprocessor. The microprocessor controls the switch to turn on or off the image intensifier through the switch controller, and selects whether to turn on the image enhancement function and whether to enhance the image data through the operation keys. The image enhancement software The processing speed has real-time characteristics; when the infrared camera is used at night, since the infrared camera is connected to the host and the image intensifier at the same time, the image enhancement software processes the video image obtained by the infrared camera in real time, and the enhanced video image is sent to the host for display on the display ; At the same time, the data memory saves the original video recording image for backup.

The effect of the present invention is that the present invention configures image enhancement software in the driving recorder, improves the visual effect of the video in harsh environments, and can complete video shooting tasks in dark and low-light environments; enhance the video at night or in bad weather processing, get relatively clear video, improve driving safety, and facilitate traffic police to handle accident disputes in harsh environments.

Description of drawings

Figure 1 is a schematic diagram of a vehicle-mounted device that integrates vision enhancement and driving record.

Figure 2 is a schematic diagram of the host structure.

Fig. 3 is a flow chart of image augmentation in the embodiment.

Detailed ways

The present invention provides a vehicle-mounted device and a visual enhancement method integrating visual enhancement and driving record; mainly aiming at the phenomenon that the current driving recorder has a limited ability to supplement light at night, resulting in a rough picture and a serious decrease in the clarity of the image in foggy days, the following is combined Accompanying drawing describes embodiment in detail.

Fig. 1 is a schematic diagram of a vehicle-mounted device integrating visual enhancement and driving record, the host of the vehicle-mounted device is respectively connected to a data analyzer, a display and a switch; the data analyzer is connected to a vehicle speed sensor; the infrared camera passes through an image intensifier It is connected with the switch; in Fig. 2, the host is composed of a microprocessor connected with data memory, real-time clock, positioning system, operation keys, display, data communication interface and switch controller.

The visual enhancement principle of the vehicle-mounted device that integrates visual enhancement and driving record: firstly, the driving information of the vehicle is collected through the vehicle speed sensor, the collected data is sent to the data analyzer, analyzed and processed by the data analysis software, input to the host computer, and Display the driving video of the vehicle in real time on the display, and display the time, speed and location information; secondly, the video information obtained by the infrared camera is transmitted in two ways, one is sent to the host data storage for storage, and the other is imported through the data communication interface. , Export the microprocessor, the microprocessor controls the switch to turn on or off the image intensifier through the switch controller, and selects whether to turn on the image enhancement function through the operation key, whether to enhance the image data, and the processing speed of the image enhancement software has real-time characteristics; when the infrared camera is used at night, since the infrared camera is connected to the host computer and the image intensifier at the same time, the image enhancement software processes the video image obtained by the infrared camera in real time, and the enhanced video image is sent to the host computer for display on the display; at the same time, the data memory Save the original video image for future use.

3 is a flowchart of an image enhancement method according to an embodiment of the present invention. The atmospheric scattering model of a foggy day is I(x)=J(x)t(x)+A(1-t(x)), wherein, I( x) represents the image received by the imaging device, J(x) is the reflected light of the scene, that is, the original scene information, A represents the brightness of the sky, and t(x) is the propagation parameter of the medium, referred to as the transmission map or transmittance. This embodiment adopts the dark channel prior method based on guided filtering, first obtains the dark channel, calculates the sky brightness A, calculates the projection rate t(x), and then uses the input image to perform guided filter optimization on the transmittance t(x), Finally, a clear output image is restored. The principle of the method used in this embodiment is clear, simple and easy to implement, and has good real-time performance. It can process video in real time in foggy days to improve driving safety.

The invention provides a vehicle-mounted device that integrates vision enhancement and driving record, and applies image enhancement technology to improve the visual effect of video in harsh environments, improve driving safety, and facilitate traffic police to handle accident disputes in bad weather.

Claims (4)

1. A vehicle-mounted device integrating vision enhancement and driving record; it is characterized in that, the host of said vehicle-mounted device is connected with data analyzer, display and switch respectively; Data analyzer is connected with vehicle speed sensor; Infrared camera is passed through image intensifier and switch connection. 2. according to claim 1, a kind of vehicle-mounted device integrating visual enhancement and driving record; it is characterized in that, said host computer is respectively connected with data memory, real-time clock, positioning system, operation key, display, data storage device by microprocessor. Composed of communication interface and switch controller. 3. A vehicle-mounted device integrating vision enhancement and driving record according to claim 1; it is characterized in that, the data analyzer is composed of data analysis software; the image intensifier is composed of image enhancement software. 4. A visual enhancement method of a vehicle-mounted device integrating visual enhancement and driving record, characterized in that, at first, the driving information of the vehicle is collected by a vehicle speed sensor, and the collected data is sent to a data analyzer for analysis and processing by data analysis software , input to the host, and display the real-time driving video of the vehicle on the display, and display the time, speed and location information; secondly, the video information obtained by the infrared camera is transmitted in two ways, one is sent to the host data memory for storage, and the other is through data communication The interface imports and exports video image data to and from the microprocessor, and the microprocessor controls the switch to turn on or off the image intensifier through the switch controller, and selects whether to enable the image enhancement function through the operation keys, whether to enhance the image data, and its image enhancement The processing speed of the software has real-time characteristics; when the infrared camera is used at night, since the infrared camera is connected to the host computer and the image intensifier at the same time, the image enhancement software processes the video image obtained by the infrared camera in real time, and the enhanced video image is sent to the host computer for processing. The monitor displays; at the same time, the data memory stores the original video images for backup.