In-vehicle display control device, in-vehicle display system, in-vehicle display control method, and program

Abstract

An in-vehicle display control device includes a display video data generating unit 31 that obtains captured video data from a rear camera 2 used in capturing the rearward portion of a vehicle, and generates display video data to be displayed in a rearview monitor 3 meant for displaying rearward videos of the vehicle; a range setting unit 35 that sets a first-type range and a second type range with respect to the display video data, the second-type range being placed on either side of the first-type range and positioned in each side portion of the display video data; a video processing unit 36 that, with respect to the video data in the second-type range set by the range setting unit 35, performs an information volume reduction operation for reducing the volume of information to be provided to the driver; and a display control unit 40.

What is claimed is: 
     
         1 . An in-vehicle display control device comprising:
 a display video data generating unit that obtains captured video data from a rear camera used in capturing rearward portion of a vehicle, and generates display video data to be displayed in a display device meant for displaying rearward video of the vehicle;   a range setting unit that sets a first-type range and a second-type range with respect to the display video data, the second-type range being placed on either side of the first-type range and positioned in each side portion of the display video data;   a video processing unit that performs an operation of recognizing a feature point from video data in the second-type range set by the range setting unit, and with respect to the video data in the second-type range, conducting an information volume reduction operation for reducing volume of information to be provided to driver, and overlapping the feature point on the video data in the second-type range in which volume of information has been reduced; and   a display control unit that causes the display device to display the display video data which has been processed by the video processing unit with respect to the video data of the second-type range.   
     
     
         2 . The in-vehicle display control device according to  claim 1 , wherein
 the video processing unit performs an operation of recognizing a vehicle as the feature point from the video data of the second-type range, and overlapping icon of the recognized vehicle on the video data in the second-type range in which volume of information has been reduced or replacing the video data with the icon.   
     
     
         3 . The in-vehicle display control device according to  claim 1 , further comprising an information obtaining unit that obtains vehicle speed information of the vehicle, wherein
 when the vehicle speed information obtained by the information obtaining unit indicates that vehicle speed is equal to or higher than predetermined speed, the video processing unit performs the information volume reduction operation with respect to the video data in the second-type range.   
     
     
         4 . The in-vehicle display control device according to  claim 3 , wherein, based on the vehicle speed information obtained by the information obtaining unit, lower the vehicle speed, wider is the first-type range set by the range setting unit. 
     
     
         5 . The in-vehicle display control device according to  claim 3 , wherein, based on the vehicle speed information obtained by the information obtaining unit, the video processing unit performs the information volume reduction operation in which, higher the vehicle speed, higher is degree of reduction of the volume of information of the video data in the second-type range. 
     
     
         6 . The in-vehicle display control device according to  claim 1 , wherein the video processing unit performs the information volume reduction operation with respect to the video data in the second-type range set by the range setting unit, in such a way that volume of information to be provided to driver decreases in proportion as an increase in distance from the first-type range. 
     
     
         7 . The in-vehicle display control device according to  claim 6 , further comprising an information obtaining unit that obtains vehicle speed information of the vehicle, wherein
 when vehicle speed information obtained by the information obtaining unit indicates that vehicle speed is equal to or higher than a predetermined speed, the video processing unit performs the information volume reduction operation with respect to the video data in the second-type range.   
     
     
         8 . The in-vehicle display control device according to  claim 7 , wherein, based on the vehicle speed information obtained by the information obtaining unit, the video processing unit performs the information volume reduction operation in such a way that, higher the vehicle speed, greater is degree of reduction in the volume of information in proportion as an increase in distance from the first-type range. 
     
     
         9 . An in-vehicle display system comprising:
 the in-vehicle display control device according to  claim 1 ; and   at least either the display device having a display width in which at least either the first-type range or the second-type range is displayable, or the rear camera.   
     
     
         10 . An in-vehicle display control method comprising:
 a display video data generation step that includes obtaining captured video data from a rear camera used in capturing rearward portion of a vehicle, and generating display video data to be displayed in a display device meant for displaying rearward video of the vehicle;   a range setting step that includes setting a first-type range and a second-type range with respect to the display video data, the second-type range being placed on either side of the first-type range and positioned in each side portion of the display video data;   a video processing step that includes recognizing a feature point from video data in the second-type range set by the range setting step, and with respect to the video data in the second-type range, conducting an information volume reduction operation for reducing volume of information to be provided to driver, and overlapping the feature point on the video data in the second-type range in which volume of information has been reduced; and   a display control step that causes the display device to display the display video data which has been processed by the video processing unit with respect to the video data of the second-type range.   
     
     
         11 . A non-transitory computer readable recording medium storing therein a program that causes a computer operating as an in-vehicle display control device, to execute:
 a display video data generation step that includes obtaining captured video data from a rear camera used in capturing rearward portion of a vehicle, and generating display video data to be displayed in a display device meant for displaying rearward video of the vehicle;   a range setting step that includes setting a first-type range and a second-type range with respect to the display video data, the second-type range being placed on either side of the first-type range and positioned in each side portion of the display video data;   a video processing step that includes recognizing a feature point from video data in the second-type range set by the range setting step, and with respect to the video data in the second-type range, conducting an information volume reduction operation for reducing volume of information to be provided to driver, and overlapping the feature point on the video data in the second-type range in which volume of information has been reduced; and   a display control step that causes the display device to display the display video data which has been processed by the video processing unit with respect to the video data of the second-type range.   
     
     
         12 . An in-vehicle display control device comprising:
 a display video data generating unit that obtains captured video data from a rear camera used in capturing rearward portion of a vehicle, and generates display video data to be displayed in a display device meant for displaying rearward video of the vehicle;   a range setting unit that sets a first-type range and a second-type range with respect to the display video data, the second-type range being placed on either side of the first-type range and positioned in each side portion of the display video data;   a video processing unit that recognizes an object from video data in the second-type range set by the range setting unit, and with respect to video data in the second-type range, conducts an information volume reduction operation for reducing volume of information to be provided to driver, and overlaps icon of the recognized object on the video data in the second-type range in which volume of information has been reduced or replacing the video data with the icon; and   a display control unit that causes the display device to display the display video data which has been processed by the video processing unit with respect to the video data of the second-type range.