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CN-122008858-A - Method for processing video signals and motor vehicle

CN122008858ACN 122008858 ACN122008858 ACN 122008858ACN-122008858-A

Abstract

The invention relates to a method for processing a video signal. An acceleration signal (221) from an acceleration sensor (22) of the motor vehicle, which describes the current acceleration of the motor vehicle, is mapped onto a change factor, wherein a positive or negative correlation exists between the acceleration signal (221) and the change factor. A programmable filter is applied to a video signal generated by at least one camera (16) detecting at least a portion of an environment (26) of a motor vehicle (10), the programmable filter shifting and/or selecting pixels of a still image (32) derived from video obtained from the video signal, wherein a filter intensity affecting the pixel shifting and/or pixel selection is related to a variation factor. The processed video signal is output on at least one display device (12) of the motor vehicle.

Inventors

  • A. Knyling

Assignees

  • 奥迪股份公司

Dates

Publication Date
20260512
Application Date
20251110
Priority Date
20241111

Claims (11)

  1. 1. A method for processing video signals, in which method video signals are generated by at least one camera (16) of a motor vehicle, wherein the at least one camera (16) detects at least a part of the environment (26) of the motor vehicle, the generated video signals are processed by a computing unit (14), the processed video signals are output on at least one display device (12) of the motor vehicle, It is characterized in that the method comprises the steps of, A. obtaining an acceleration signal (221) describing the current acceleration of the motor vehicle from an acceleration sensor (22) of the motor vehicle B. mapping the acceleration signal onto a variation factor, wherein there is a positive or negative correlation between the acceleration signal (221) and the variation factor, C. applying a programmable filter to the video signal generated by the at least one camera (16), the programmable filter shifting and/or selecting pixels of a still image (32) derived from video obtained from the video signal, wherein the filter intensities affecting the pixel shifting and/or pixel selection are related to a variation factor, D. The video signal processed by the filter is output.
  2. 2. Method according to claim 1, characterized in that a speed signal (241) from at least one speed sensor (24) describing the current speed of the motor vehicle is additionally mapped onto the change factor, in the case of a positive correlation between the acceleration signal (221) and the change factor, a positive correlation between the speed signal (241) and the change factor being present, and in the case of a negative correlation between the acceleration signal (221) and the change factor, a negative correlation being present between the speed signal (241) and the change factor being present.
  3. 3. Method according to any of the preceding claims, wherein a filter moves an image section (28) in the video, wherein the image section (28) is output on a display device (12), the intensity of the filter being determined by the speed and/or acceleration of the movement of the image section (28).
  4. 4. The method according to any of the preceding claims, characterized in that a model (30) of the environment (26) that varies in time with the video signal is determined from the video signals of a plurality of cameras (16, 162), the model reproducing the environment (26) reproduced in the video signal from a plurality of perspectives, a filter changing the perspectives on the model (30), wherein the intensity of the filter is determined by the speed and/or acceleration of the changes of the perspectives, the outputting comprising rendering the environment (26) in the model (30) at the changed perspectives.
  5. 5. Method according to any of the preceding claims, characterized in that the video signal describes the environment (26) in the direction of travel (18) of the motor vehicle, the video being amplified (34) by a filter, wherein the intensity of the filter is determined by the speed and/or acceleration of the amplification (34) of the video.
  6. 6. Method according to claim 5, characterized in that the filter additionally distorts (36) the video along a line (40) extending from a video centre point (38) to a video edge (42), said centre point being centrally shown on and/or arranged on the display device (12), wherein the strength of the filter is determined by the speed and/or acceleration at which the distortion (36) changes, and/or the strength of the filter indicates the strength of the distortion (36).
  7. 7. Method according to claim 5 or 6, characterized in that the processed video signal is output in the background on the at least one display device (12), an artificial horizon being simulated in the foreground, the inclination of the artificial horizon being related to the lateral acceleration in case of cornering.
  8. 8. A method according to any of the preceding claims, characterized in that the video signal is processed in real time by means of a filter.
  9. 9. A method according to any of the preceding claims, characterized in that the acceleration effect produced by applying a filter is enhanced, by which acceleration effect a larger acceleration than the current acceleration is simulated in that: a. in a motor vehicle, sound effects, in particular turbine sounds, are output, wherein the volume and/or the pitch of the sound effects are dependent on a change factor, and/or, B. Simulating a state of at least one component of the vehicle at a vehicle acceleration and/or a vehicle speed on a simulated display device in the motor vehicle, wherein the vehicle acceleration and/or the vehicle speed is related to a change factor, and/or, C. in the case of a cornering movement of a motor vehicle, the height of the body outside the curve is made higher than inside the curve by adjusting the suspension, and/or, D. Tactile feedback, in particular vibrations and/or movements of at least one vehicle seat, is provided, the tactile feedback being related to the change factor.
  10. 10. Method according to any of the preceding claims, characterized in that the video signal is stored and is output slowly on at least one display device (12), in that the video signal is reproduced accelerated in addition to the application of a filter in case the current acceleration exceeds a predefinable acceleration threshold.
  11. 11. Motor vehicle comprising at least one display device (12), at least one camera (16) and an acceleration sensor (22), wherein the motor vehicle is arranged to perform the method according to any of the preceding claims.

Description

Method for processing video signals and motor vehicle Technical Field The invention relates to a method for processing a video signal and to a motor vehicle arranged to perform the method. Background The motor vehicle may comprise at least one display device. For example, the display device may be a display, a monitor, a transparent display mounted on, for example, a motor vehicle glazing, a heads-up display, a projector projected onto a surface of an interior space of a motor vehicle, virtual Reality (VR) glasses, and/or Augmented Reality (AR) glasses. By means of the display device, the image content can be displayed to the passenger, for example, the environment of the motor vehicle can be output. The environment of the motor vehicle may be a predefinable area around the motor vehicle. In order to display the environment of the motor vehicle on the display device, it can be provided that a video signal is generated by at least one camera of the motor vehicle, wherein the at least one camera detects at least a part of the environment of the motor vehicle, the generated video signal is processed by the computing unit, and the processed video signal is output on the at least one display device of the motor vehicle. This means that the motor vehicle comprises at least one camera, wherein the at least one camera can be directed away from the motor vehicle, so that the detection area of the camera comprises a part of the environment of the motor vehicle. Each of the cameras may acquire video signals separately, wherein the video signals of at least one camera may be assembled into one video. This video can be reproduced by a display device. Disclosure of Invention The aim of the invention is to enable a motor vehicle occupant to intuitively perceive the current driving situation of the motor vehicle. This object is achieved by the subject matter of the independent claims. Advantageous developments of the invention are described in the dependent claims, the following description and the figures. As a solution, the invention comprises a method for processing a video signal. The processing of the video signal comprises mapping an acceleration signal from an acceleration sensor of the motor vehicle describing the current acceleration of the motor vehicle onto the change factor. This means, for example, that the motor vehicle comprises at least one acceleration sensor, by means of which the current acceleration of the motor vehicle can be determined according to methods known in the art and can be indicated by means of an acceleration signal. The acceleration signal may be received and/or processed by other components of the motor vehicle, for example by a controller and/or a computing unit. According to the invention, the acceleration signal is mapped to a change factor. This is preferably done within a computing unit comprised in the motor vehicle. Mapping the acceleration signal onto a change factor means, in particular, that the change factor is related to the acceleration signal and thus to the current acceleration of the motor vehicle. In particular, the change factor is a function in which the acceleration signal and thus the current acceleration is taken into account as a function value and/or parameter, or the result of such a function. The change in the current acceleration may cause a change in the acceleration signal and thus a change in the change factor. This means in particular that if the values of the first current acceleration and the second current acceleration differ from one another, the value of the change factor at the first current acceleration differs from the value at the second current acceleration as well. There is either a positive or negative correlation between the acceleration signal and the change factor. In particular, there is a positive or negative correlation between the current acceleration of the motor vehicle and the change factor. The terms "positive correlation" and "negative correlation" are statistical measures known in the art and describe the relationship of a first value of a first variable and a second value of a second variable to each other. In an example of the invention, the acceleration signal and/or the current acceleration may be specified as a first variable and the change factor may be specified as a second variable. In the case where there is a positive correlation between the first variable and the second variable, the larger the second value, the larger the first value, and/or the larger the first value, the larger the second value. Additionally, the smaller the second value, the smaller the first value and/or the smaller the first value, the smaller the second value. In the case where there is a negative correlation between the first variable and the second variable, the smaller the second value, the larger the first value and/or the smaller the first value, the larger the second value. Additionally, the larger the second value, the smaller the first valu