Apparatus to adjust a field of view displayed on an electronic mirror using an automobile state or a driver action

Patent metadata

Field	Value
Publication number	US-10239456-B1
Application number	US-201615040106-A
Country	US
Kind code	B1
Filing date	Feb 10, 2016
Priority date	Feb 10, 2016
Publication date	Mar 26, 2019
Grant date	Mar 26, 2019

Abstract

An apparatus comprising an interface to a sensor and a processor. The sensor may be configured to generate a video signal having a first field of view based on a targeted view from a vehicle. The processor may be configured to (A) receive the video signal from the interface, (B) generate a second field of view from the video signal based on (i) the first field of view, (ii) a shape of a display and (iii) an input and (C) present the second field of view from the video signal to the display. The second field of view is a cropped version of the first field of view. The second field of view is generated by adjusting video data in the first field of view. Portions of the first field of view not in the second field of view are hidden portions of the video signal.

First claim

The invention claimed is:

1. An apparatus comprising: an interface to a sensor, said sensor configured to generate a video signal having a first field of view based on (i) a targeted view from a vehicle, and (ii) a horizontal dimension and vertical dimension corresponding to a size of said sensor; and
a processor configured to (A) receive said video signal from said interface, (B) generate a second field of view from said video signal based on (i) said first field of view, (ii) a width and height of a display and (iii) an input and (C) present said second field of view from said video signal to said display, wherein (a) said second field of view is a cropped version of said first field of view configured o show a first vertical portion of said vertical dimension that fits said height of said display, (b) said second field of view is generated by adjusting video data in said first field of view, (c) a first ratio of said horizontal dimension to said vertical dimension of said first field of view is different than a second ratio of said width to said height of said display, (d) a second vertical portion of said first field of view is not in said second field of view in response to said difference between said first ratio and said second ratio, (e) said first ratio is an aspect ratio of said sensor, (f) said second ratio is an aspect ratio of said display and (g) cropping said first field of view in response to said difference between said first ratio and said second ratio enables said display to show said second field of view without distorting said video data.

2. The apparatus according to claim 1 , wherein said adjusting said video data in said first field of view comprises performing a digital movement of a capture window of said video data.

3. The apparatus according to claim 2 , wherein (i) said capture window is used to select said second field of view, (ii) said video data in said first field of view outside of said capture window comprises said second vertical portion that is a hidden portion captured by said sensor that does not fit said second ratio of said display and (iii) said hidden portion is cropped out of said second field of view.

4. The apparatus according to claim 2 , wherein said capture window has a shape conforming to said width and said height of said display.

5. The apparatus according to claim 4 , wherein (i) said width of said shape is larger than said height of said shape and (ii) said capture window covers said first vertical portion of said vertical dimension and said horizontal dimension of said first field of view.

6. The apparatus according to claim 1 , wherein said input comprises vehicle sensor information received from said vehicle.

7. The apparatus according to claim 6 , wherein said vehicle sensor information comprises a body position of a driver.

8. The apparatus according to claim 1 , wherein said input comprises a user input.

9. The apparatus according to claim 1 , wherein said targeted view from said vehicle comprises a view in a direction of a rear end of said vehicle.

10. The apparatus according to claim 1 , wherein said apparatus comprises a system on a chip (SoC).

11. The apparatus according to claim 1 , wherein said display comprises an electronic mirror for said vehicle.

12. The apparatus according to claim 1 , wherein said apparatus is configured to adjust a field of view displayed on an electronic mirror using an automobile state or a driver action.

13. The apparatus according to claim 1 , wherein said display replaces a reflective rear-view mirror.

14. The apparatus according to claim 1 , wherein said display emulates a reflective rear-view mirror.

15. An apparatus comprising: a sensor configured to generate a video signal having a first field of view based on (i) a targeted view from a vehicle and (ii) a horizontal dimension and a vertical dimension corresponding to a size of said sensor; and
a processor configured to (A) receive said video signal, (B) generate a second field of view from said video signal based on (i) said first field of view, (ii) a width and height of a display and (iii) an input and (C) present said second field of view from said video signal to said display, wherein (a) said second field of view is a cropped version of said first field of view configured to show a first vertical portion of said vertical dimension that fits said height of said display, (b) said second field of view is generate by adjusting video data in said first field of view, (c) a first ratio of said horizontal dimension to said vertical dimension of said first field of view is different than a second ratio of said width to said height of said display, (d) a second vertical portion of said first field of is not in said second field of view in response to said difference between said first ratio and second ratio, (e) said first ratio is an aspect ratio of said sensor, (f) said second ratio is an aspect ratio of said display and (g) cropping said first field of view in response to said difference between said first ratio and said second ratio enables said display to show said second field of view without distorting said video data.

Assignees

• Ambarella Inc

Inventors

• Tao Shih-Hsuan
• Kohn Leslie D
• Campbell Jeffery

Classifications

• G06F3/0488

  using a touch-screen or digitiser, e.g. input of commands through traced gestures · CPC title

• B60R2300/8026

  in addition to a rear-view mirror system · CPC title

• B60R2300/207

  using multi-purpose displays, e.g. camera image and navigation or video on same display · CPC title

• B60R2300/306

  using a re-scaling of images · CPC title

• B60R2300/307

  virtually distinguishing relevant parts of a scene from the background of the scene · CPC title