Photographing Control Method for Target Tracking

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Existing photographing control methods for monitoring target objects using image recognition technology are complex, require expensive hardware and software, and fail when the target object is shielded or moves out of the viewing angle.

Innovation Solution

A photographing control method that involves obtaining multiple sets of shooting information, including location and angle data, to estimate the target object's location and generate adjustment instructions to adjust the photographing device's angle, ensuring the target remains within the viewing angle.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If image recognition technology based on grayscale and texture features is used to monitor target objects, then continuous monitoring capability is achieved, but device complexity and cost increase significantly

Engineering Contradiction:

Improvecontinuous monitoring capabilityVSAvoidsoftware and hardware complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent extracts only the essential geometric features (edges, corners, lines) from the target object rather than using full image recognition. By taking out only the necessary structural elements needed for tracking, the system achieves monitoring capability with significantly reduced computational complexity and lower hardware requirements.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

Instead of using complex image recognition to identify and track objects, the patent inverts the approach by using simple geometric feature extraction combined with spatial relationship analysis. This inverted methodology achieves the same monitoring goal through a simpler, more efficient technical path that avoids the complexity of traditional computer vision systems.

Inventive Principle:

Principle #13The other way round (Inversion)

2Reliability

If image recognition technology is used to track shielded target objects, then monitoring is maintained, but the system fails when objects are shielded or move out of viewing angle

Engineering Contradiction:

Improvemonitoring reliabilityVSAvoidperformance under shielding conditions

Core Design Contradiction:

ReliabilityVSAdaptability or versatility

Solution Approach 1:

The patent performs preliminary action by establishing a spatial model of the target object's geometric features and their relationships before shielding occurs. By pre-establishing this structural framework, the system can predict and maintain tracking of shielded objects using the remaining visible geometric cues and spatial relationships, rather than relying on continuous full-object recognition.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The patent introduces geometric feature points (edges, corners, lines) as intermediary elements that mediate between the photographing device and the target object. These intermediary geometric markers remain detectable even when parts of the object are shielded, serving as reliable reference points for maintaining spatial awareness and continuous monitoring under partial occlusion.

Inventive Principle:

Principle #24Intermediary (Mediator)

3Measurement precision

If multiple sets of shooting information are collected and processed to estimate target location, then positioning accuracy improves, but processing time and computational load increase

Engineering Contradiction:

Improvetarget location estimation accuracyVSAvoidprocessing time

Core Design Contradiction:

Measurement precisionVSLoss of time

Solution Approach 1:

The patent replaces complex mechanical image processing systems with a streamlined computational geometry approach. By substituting full image recognition algorithms with geometric feature extraction and spatial relationship calculations, the system achieves accurate location estimation with significantly reduced processing time and computational resources.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Data Source

PatentUS12238403B2Photographing control method, apparatus, and control device

Publication Date: 2025.02.25 SZ DJI TECH CO LTD

AI summary

A method includes obtaining a photographed image from a photographing device carried by a movable object, determining a target object in the photographed image to track the target object, determining location estimation information of the target object based on shooting information of the photographing device, and in response to a disappearance of the target object in the photographed image, controlling the photographing device to search for the target object around a location associated with the location estimation information.