Mobile Terminal Light Grouping for Targeted Depth Extraction
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Solution Overview
Problem
Existing mobile terminals lack an efficient method to extract depth information from images using light emitting devices and control these devices optimally for various camera functions.
Innovation Solution
A mobile terminal equipped with a light emitting unit comprising multiple light emitting devices, grouped into subsets, controlled by a controller to emit light selectively towards specific portions of an image for depth information extraction, optimizing power usage and control methods based on camera operation modes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If light emitting devices are controlled to emit light only toward specific portions of the image for depth information extraction, then power consumption is reduced and depth information extraction success rate is improved, but device complexity increases due to the need for selective control mechanisms
Solution Approach 1:
The light emitting devices are divided into multiple groups, where each group corresponds to a specific portion of the image. The controller selectively activates only the groups needed for the current depth measurement task, rather than activating all devices. This segmentation enables targeted illumination of specific image regions, reducing overall power consumption while maintaining depth extraction capability for the required portions.
Solution Approach 2:
The control system dynamically adjusts which light emitting device groups are activated based on the current camera operation mode and the specific depth information requirements. The controller can adaptively select and activate different groups of light emitting devices according to real-time needs, optimizing power usage while ensuring the necessary depth information is obtained for the current imaging task.
2Measurement precision
If multiple groups of light emitting devices are controlled to emit light sequentially, then depth information extraction accuracy is improved for different image portions, but time consumption increases
Solution Approach 1:
The controller implements periodic activation of different light emitting device groups in a sequential manner. Each group is activated in turn to illuminate specific portions of the scene, allowing the camera to capture depth information for different regions systematically. This periodic action ensures comprehensive depth coverage while managing the time required for complete depth map generation.
Solution Approach 2:
The controller pre-establishes the grouping configuration of light emitting devices, mapping each group to specific portions of the image before actual depth measurement begins. This preliminary organization allows for efficient sequential activation during operation, reducing the decision-making time during actual depth extraction while maintaining the ability to target specific image regions accurately.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The method allows for optimized extraction of depth information by emitting light only to relevant image portions, minimizing power consumption and improving the success rate of depth information extraction.
Implementation Method 1
a light emitting unit configured to include a plurality of light emitting devices, and emit light toward a space corresponding to an image received through the camera
Data Source
Figure 1a
Figure 1b~1c
Figure 2a
AI summary
There are provided a mobile terminal including light emitting devices and a method for controlling the same. A mobile terminal includes a camera, a light emitting unit including a plurality of light emitting devices, the light emitting unit emitting light toward a space corresponding to an image received through the camera, and a controller for controlling light emitting devices, which emit light toward a space corresponding to a portion of the image among the plurality of light emitting devices, to be used in extracting depth information of the portion.