Granted Patent B2

US 12,260,608 · App. 17/782,521 · Granted Mar 25, 2025

Inventors: Qiong Xu (Zhejiang, CN); Wenping Zhang (Zhejiang, CN)

Assignee: ZHEJIANG UNIVIEW TECHNOLOGIES CO., LTD.

G06V10/60G06T7/20G06T7/70G06V10/25G06V10/761G06V40/169G06T2207/10144G06T2207/30168G06V2201/07

Abstract

Claims (64)

1. An image capturing method, comprising:

at a new acquisition moment, predicting a predicted projection area position of a target object in a current captured image on an image sensor and estimated exposure brightness information of the target object in the predicted projection area position;

adjusting, according to a type of the target object and the estimated exposure brightness information, an exposure parameter of the target object in the predicted projection area position when the new acquisition moment arrives; and

acquiring a new captured image at the new acquisition moment according to the adjusted exposure parameter, wherein both the new captured image and the current captured image comprise the target object;

wherein predicting the estimated exposure brightness information of the target object in the predicted projection area position and at the new acquisition moment comprises:

determining a current projection area position of the target object on the image sensor and at a current acquisition moment;

at the current acquisition moment, determining first current exposure brightness information of the target object in the current projection area position and second current exposure brightness information of the target object in the predicted projection area position; and

determining the estimated exposure brightness information according to the first current exposure brightness information and the second current exposure brightness information.

2. The method of claim 1 , wherein

predicting the predicted projection area position of the target object in the current captured image on the image sensor and at the new acquisition moment comprises: determining a current image position of the target object in the current captured image and at the current acquisition moment; predicting a motion of the target object according to the current image position and determining a predicted image position of the target object in the current captured image and at the new acquisition moment; and determining the predicted projection area position of the target object on the image sensor at the new acquisition moment according to the predicted image position; and

determining the current projection area position of the target object on the image sensor and at the current acquisition moment comprises: determining the current projection area position of the target object on the image sensor and at the current acquisition moment according to the current image position.

3. The method of claim 1 , wherein adjusting, according to the type of the target object and the estimated exposure brightness information, the exposure parameter of the target object in the predicted projection area position when the new acquisition moment arrives comprises:

determining target exposure brightness information associated with the type of the target object; and

adjusting, according to the target exposure brightness information and the estimated exposure brightness information, the exposure parameter of the target object in the predicted projection area position when the new acquisition moment arrives.

4. The method of claim 3 , wherein adjusting, according to the target exposure brightness information and the estimated exposure brightness information, the exposure parameter of the target object in the predicted projection area position when the new acquisition moment arrives comprises:

determining brightness difference information between the target exposure brightness information and the estimated exposure brightness information; and

in response to detecting that the brightness difference information does not satisfy preset difference information, adjusting, according to the brightness difference information, the exposure parameter of the target object in the predicted projection area position when the new acquisition moment arrives.

5. The method of claim 1 , further comprising:

determining at least one of an image quality or a feature similarity of the target object comprised in the new captured image; and

adjusting an image parameter of the new captured image according to at least one of the determined image quality or the determined feature similarity to obtain an adjusted new captured image.

6. An image capturing apparatus, comprising:

at least one processor; and

a storage apparatus configured to store at least one program;

wherein the at least one program is executed by the at least one processor to cause the at least one processor to implement operations in an exposure brightness determination module, an exposure parameter adjustment module and an image exposure capture module; wherein

the exposure brightness determination module is configured to at a new acquisition moment, predict a predicted projection area position of a target object in a current captured image on an image sensor and estimated exposure brightness information of the target object in the predicted projection area position;

the exposure parameter adjustment module is configured to adjust, according to a type of the target object and the estimated exposure brightness information, an exposure parameter of the target object in the predicted projection area position when the new acquisition moment arrives; and

the image exposure capture module is configured to acquire a new captured image at the new acquisition moment according to the adjusted exposure parameter, wherein both the new captured image and the current captured image comprise the target object;

wherein the exposure brightness determination module is configured to:

determine a current projection area position of the target object on the image sensor and at a current acquisition moment;

at the current acquisition moment, determine first current exposure brightness information of the target object in the current projection area position and second current exposure brightness information of the target object in the predicted projection area position; and

determine the estimated exposure brightness information according to the first current exposure brightness information and the second current exposure brightness information.

7. A non-transitory computer-readable storage medium, wherein the storage medium is configured to store a computer program, and the computer program, when executed by a processor, implements:

at a new acquisition moment, predicting a predicted projection area position of a target object in a current captured image on an image sensor and estimated exposure brightness information of the target object in the predicted projection area position;

adjusting, according to a type of the target object and the estimated exposure brightness information, an exposure parameter of the target object in the predicted projection area position when the new acquisition moment arrives; and

acquiring a new captured image at the new acquisition moment according to the adjusted exposure parameter, wherein both the new captured image and the current captured image comprise the target object;

wherein predicting the estimated exposure brightness information of the target object in the predicted projection area position and at the new acquisition moment comprises:

determining a current projection area position of the target object on the image sensor and at a current acquisition moment;

at the current acquisition moment, determining first current exposure brightness information of the target object in the current projection area position and second current exposure brightness information of the target object in the predicted projection area position; and

determining the estimated exposure brightness information according to the first current exposure brightness information and the second current exposure brightness information.

8. The apparatus of claim 6 , wherein

the exposure brightness determination module is configured to:

determine a current image position of the target object in the current captured image and at the current acquisition moment; predict a motion of the target object according to the current image position and determine a predicted image position of the target object in the current captured image and at the new acquisition moment; and determine the predicted projection area position of the target object on the image sensor at the new acquisition moment according to the predicted image position; and

the exposure brightness determination module is further configured to: determine the current projection area position of the target object on the image sensor and at the current acquisition moment according to the current image position.

9. The apparatus of claim 6 , wherein the exposure parameter adjustment module comprises:

a target brightness determination unit configured to determine target exposure brightness information associated with the type of the target object; and

an exposure parameter adjustment unit configured to adjust, according to the target exposure brightness information and the estimated exposure brightness information, the exposure parameter of the target object in the predicted projection area position when the new acquisition moment arrives.

10. The apparatus of claim 9 , wherein the exposure parameter adjustment unit is configured to:

determine brightness difference information between the target exposure brightness information and the estimated exposure brightness information; and

in response to detecting that the brightness difference information does not satisfy preset difference information, adjust, according to the brightness difference information, the exposure parameter of the target object in the predicted projection area position when the new acquisition moment arrives.

11. The apparatus of claim 6 , further comprising:

a captured image analysis module configured to determine at least one of an image quality or a feature similarity of the target object comprised in the new captured image; and

a captured image processing module configured to adjust an image parameter of the new captured image according to at least one of the determined image quality or the determined feature similarity to obtain an adjusted new captured image.

12. The non-transitory computer-readable storage medium of claim 7 , wherein

predicting the predicted projection area position of the target object in the current captured image on the image sensor and at the new acquisition moment comprises: determining a current image position of the target object in the current captured image and at the current acquisition moment; predicting a motion of the target object according to the current image position and determining a predicted image position of the target object in the current captured image and at the new acquisition moment; and determining the predicted projection area position of the target object on the image sensor at the new acquisition moment according to the predicted image position; and

determining the current projection area position of the target object on the image sensor and at the current acquisition moment comprises: determining the current projection area position of the target object on the image sensor and at the current acquisition moment according to the current image position.

13. The non-transitory computer-readable storage medium of claim 7 , wherein adjusting, according to the type of the target object and the estimated exposure brightness information, the exposure parameter of the target object in the predicted projection area position when the new acquisition moment arrives comprises:

determining target exposure brightness information associated with the type of the target object; and

adjusting, according to the target exposure brightness information and the estimated exposure brightness information, the exposure parameter of the target object in the predicted projection area position when the new acquisition moment arrives.

14. The non-transitory computer-readable storage medium of claim 13 , wherein adjusting, according to the target exposure brightness information and the estimated exposure brightness information, the exposure parameter of the target object in the predicted projection area position when the new acquisition moment arrives comprises:

determining brightness difference information between the target exposure brightness information and the estimated exposure brightness information; and

in response to detecting that the brightness difference information does not satisfy preset difference information, adjusting, according to the brightness difference information, the exposure parameter of the target object in the predicted projection area position when the new acquisition moment arrives.

15. The non-transitory computer-readable storage medium of claim 7 , wherein the computer program further implements:

determining at least one of an image quality or a feature similarity of the target object comprised in the new captured image; and

adjusting an image parameter of the new captured image according to at least one of the determined image quality or the determined feature similarity to obtain an adjusted new captured image.

Assignments (1)

Priority Claims (1)

Continuity (1)

References Cited (16)