Asymmetric Field of View Control for Object Tracking
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Solution Overview
Problem
Conventional shooting control systems for cameras that automatically capture images fail to account for objects outside the field of view, leading to missed captures or partial captures of objects near the field's edge.
Innovation Solution
A shooting control apparatus with a processor and circuitry that detects objects within the field of view, adjusts the shooting direction to ensure objects facing sideways have a wider image capture on the side they are facing, and uses pan, tilt, and zoom controls to maintain objects within the view, even if they are outside the initial field of view.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the camera focuses on the detected object in the field of view, then the object is captured clearly, but other objects outside the field of view are missed or partially captured
Solution Approach 1:
The patent applies asymmetry by adjusting the field of view asymmetrically based on object orientation. When an object is detected facing a specific direction, the field of view is expanded more in that direction than in opposite directions, creating an asymmetric capture region that follows the object's orientation rather than using a symmetric circular or rectangular field of view
Solution Approach 2:
The patent transitions from two-dimensional field of view adjustment to three-dimensional spatial consideration by incorporating object orientation data. The system doesn't just adjust the size of the field of view but also its angular distribution in three-dimensional space, creating an elongated capture region that extends in the direction the object is facing
2Adaptability or versatility
If the field of view is expanded to capture more area, then objects outside the initial field of view are included, but the detected object size decreases
Solution Approach 1:
The patent applies local quality by providing different field of view characteristics in different spatial regions. The region in the direction of the object's face is expanded to capture potential additional objects, while the region behind the object maintains higher resolution for the primary detected object, creating non-uniform image quality distribution that optimizes both coverage and detail
3Adaptability or versatility
If the camera position and zoom are manually adjusted to capture objects, then complete capture is achieved, but the operation becomes troublesome and time-consuming
Solution Approach 1:
The patent implements self-service by enabling the camera system to automatically adjust its field of view and shooting parameters based on detected object characteristics. The system autonomously determines the optimal field of view shape and orientation without requiring manual intervention, making the camera serve itself in optimizing capture parameters
Solution Approach 2:
The patent uses feedback by continuously detecting object orientation and position, then using this information to dynamically adjust the field of view configuration. The system monitors object characteristics and automatically modifies shooting parameters based on this feedback loop, eliminating the need for manual adjustment
Data Source
AI summary
A shooting control apparatus obtains image data from an imaging unit that obtains the image data based on light from an imaging optical system and then detects an object and an orientation of the detected object from the image data. The apparatus controls a shooting direction of the imaging unit by controlling rotational driving of the imaging unit so that a position of the object in a field of view of the imaging unit changes based on the orientation of the object. The apparatus controls the shooting direction, in a case where the object faces in a first direction, so that a distance between an edge of the field of view on a first direction side and the object to be greater than a distance therebetween in a case where the object faces forward.