Vehicle imaging device, vehicle imaging display system, and vehicle
First Claim
1. A vehicle imaging device for displaying an image of the outside of a vehicle on a display unit used in the vehicle, the device comprising:
- an imaging unit that is attached to the vehicle, images an image of the outside of the vehicle, and outputs an imaging signal, the imaging unit imaging an image of a rear lateral area of the vehicle; and
an image processing circuit includingan image signal generation unit that performs a generation process of generating an image signal indicating an image to be displayed in each line of the display unit based on the imaging signal, and outputs the image signal to the display unit, anda timing control unit that controls a timing when the image signal generation unit outputs the image signal to the display unit,wherein, when a time from when a frame of the imaging signal is started to when a frame of the image signal output to the display unit is started is a phase difference, a frame rate of the imaging unit is a first frame rate, and a highest frame rate at which the display unit is configured to display is a second frame rate,the timing control unit is configured to perform first timing control for decreasing the phase difference by causing the image signal generation unit to output the image signal such that the frame rate of the display unit is the second frame rate in a case where the phase difference is greater than a predetermined time, and second timing control for causing the image signal generation unit to output the image signal such that the frame rate of the display unit is the first frame rate after the phase difference is equal to or less than the predetermined time,wherein the generation process includes at least one of a first process or a second process, or both, the first process is a process of relatively further magnifying an area of the image based on the imaging signal which is close to a vehicle body in a left and right direction than an area thereof which is far away from the vehicle body, and the second process is a process of relatively further magnifying an area of the image based on the imaging signal which is located in the center in an up and down direction than an area thereof which is located in an upper or lower area than the center area,wherein, when a length of the area close to the vehicle body in the left and right direction is X1 and a magnification ratio thereof is H1, and a length of the area far away from the vehicle body in the left and right direction is X2 and a minification ratio thereof is H2, the H1 and the H2 are determined such that X1+X2=X1·
H1+X2·
H2 in the first process, andwhen a length of the center area in the up and down direction is Y1 and a magnification ratio thereof is V1, a length of the upper area in the up and down direction is Y2 and a minification ratio thereof is V2, and a length of the lower area in the up and down direction is Y3 and a minification ratio thereof is V3, the V1, the V2 and the V3 are determined such that Y1+Y2+Y3=Y1·
V1+Y2·
V2+Y3·
V3 in the second process.
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Accused Products
Abstract
A vehicle imaging device for displaying an image of the outside of a vehicle on a display unit used in the vehicle includes an imaging unit that is attached to the vehicle, images of the outside of the vehicle, and outputs an imaging signal; an image signal generation unit that performs a generation process of generating an image signal indicating an image to be displayed in each line of the display unit based on the imaging signal, and outputs the image signal to the display unit; and a timing control unit that controls a timing when the image signal generation unit outputs the image signal to the display unit.
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Citations
14 Claims
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1. A vehicle imaging device for displaying an image of the outside of a vehicle on a display unit used in the vehicle, the device comprising:
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an imaging unit that is attached to the vehicle, images an image of the outside of the vehicle, and outputs an imaging signal, the imaging unit imaging an image of a rear lateral area of the vehicle; and an image processing circuit including an image signal generation unit that performs a generation process of generating an image signal indicating an image to be displayed in each line of the display unit based on the imaging signal, and outputs the image signal to the display unit, and a timing control unit that controls a timing when the image signal generation unit outputs the image signal to the display unit, wherein, when a time from when a frame of the imaging signal is started to when a frame of the image signal output to the display unit is started is a phase difference, a frame rate of the imaging unit is a first frame rate, and a highest frame rate at which the display unit is configured to display is a second frame rate, the timing control unit is configured to perform first timing control for decreasing the phase difference by causing the image signal generation unit to output the image signal such that the frame rate of the display unit is the second frame rate in a case where the phase difference is greater than a predetermined time, and second timing control for causing the image signal generation unit to output the image signal such that the frame rate of the display unit is the first frame rate after the phase difference is equal to or less than the predetermined time, wherein the generation process includes at least one of a first process or a second process, or both, the first process is a process of relatively further magnifying an area of the image based on the imaging signal which is close to a vehicle body in a left and right direction than an area thereof which is far away from the vehicle body, and the second process is a process of relatively further magnifying an area of the image based on the imaging signal which is located in the center in an up and down direction than an area thereof which is located in an upper or lower area than the center area, wherein, when a length of the area close to the vehicle body in the left and right direction is X1 and a magnification ratio thereof is H1, and a length of the area far away from the vehicle body in the left and right direction is X2 and a minification ratio thereof is H2, the H1 and the H2 are determined such that X1+X2=X1·
H1+X2·
H2 in the first process, andwhen a length of the center area in the up and down direction is Y1 and a magnification ratio thereof is V1, a length of the upper area in the up and down direction is Y2 and a minification ratio thereof is V2, and a length of the lower area in the up and down direction is Y3 and a minification ratio thereof is V3, the V1, the V2 and the V3 are determined such that Y1+Y2+Y3=Y1·
V1+Y2·
V2+Y3·
V3 in the second process. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. An imaging device for displaying an image of the outside of a vehicle on a display unit used in the vehicle, the device comprising:
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an image sensor that captures an image of the outside of the vehicle, and outputs an imaging signal corresponding to the image, the imaging unit imaging an image of a rear lateral area of the vehicle; and an image processing circuit including an image signal generation unit that performs a generation process of generating an image signal indicating an image to be displayed in the display unit based on the imaging signal, and outputs the image signal to the display unit, and a timing control unit that controls a capturing timing of the imaging signal by the image sensor based on a first frame rate, a display timing of the image signal on the display unit based on a second frame rate, and a phase difference between the capturing timing of the imaging signal and the display timing of the image signal, wherein the second frame rate is faster than the first frame rate when the phase difference becomes larger than a predetermined time, wherein the second frame rate is same as the first frame rate when the phase difference becomes smaller than or equal to the predetermined time, wherein the generation process includes at least one of a first process or a second process, or both, the first process is a process of relatively further magnifying an area of the image based on the imaging signal which is close to a vehicle body in a left and right direction than an area thereof which is far away from the vehicle body, and the second process is a process of relatively further magnifying an area of the image based on the imaging signal which is located in the center in an up and down direction than an area thereof which is located in an upper or lower area than the center area, wherein, when a length of the area close to the vehicle body in the left and right direction is X1 and a magnification ratio thereof is H1, and a length of the area far away from the vehicle body in the left and right direction is X2 and a minification ratio thereof is H2, the H1 and the H2 are determined such that X1+X2=X1·
H1+X2·
H2 in the first process, andwhen a length of the center area in the up and down direction is Y1 and a magnification ratio thereof is V1, a length of the upper area in the up and down direction is Y2 and a minification ratio thereof is V2, and a length of the lower area in the up and down direction is Y3 and a minification ratio thereof is V3, the V1, the V2 and the V3 are determined such that Y1+Y2+Y3=Y1·
V1+Y2·
V2+Y3·
V3 in the second process. - View Dependent Claims (13, 14)
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Specification