Display Illumination Control for Motion Capture in Low Light
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Solution Overview
Problem
Existing input interface systems for capturing player motion struggle with insufficient illumination, particularly in low-light environments, where the object cannot be recognized correctly due to insufficient brightness, and may not have suitable lighting equipment available.
Innovation Solution
An image processing method and apparatus that detects player object motion and increases the brightness of the projected image on the display, using a camera, position detector, action identifier, input receiver, and illumination control unit to enhance illumination around the object, allowing accurate object recognition.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If the illumination of the room is turned down for playing games, then the player can enjoy a better gaming atmosphere, but the object captured by the camera cannot be recognized correctly due to insufficient illumination
Solution Approach 1:
The patent converts the harmful effect of low ambient light into a beneficial situation by using the display screen as an active light source. The display, which would normally only show game content, is utilized to illuminate the player and objects in the dark room, turning the problem of insufficient lighting into a solution where the display serves dual purposes: showing game content and providing illumination for accurate object capture.
Solution Approach 2:
The display screen performs multiple functions simultaneously: it displays game content to the player and acts as an illumination source for the camera to capture the player's movements accurately. This multi-functionality resolves the contradiction by making the display serve both as information output device and as lighting equipment.
2Illumination intensity
If lighting equipment is prepared to illuminate the object sufficiently, then the object can be captured with sufficient brightness, but it is not always possible due to limitations of the playing environment
Solution Approach 1:
The system uses itself to solve the illumination problem. The display, which is already present in the gaming setup, is utilized to provide the necessary illumination without requiring external lighting equipment. This self-service approach makes the system adaptable to any playing environment where a display is available, eliminating the constraint of needing additional lighting equipment.
Solution Approach 2:
The display screen serves dual purposes: displaying game content and providing illumination. This multi-functionality enables the system to adapt to various playing environments without requiring separate lighting equipment, as the display itself becomes the light source regardless of the ambient lighting conditions.
3Measurement precision
If the brightness of the projected image is increased to illuminate the object, then the object recognition accuracy improves, but more energy is consumed by the display
Solution Approach 1:
The patent converts the energy consumption issue into a beneficial situation by utilizing the display's existing power consumption for dual purposes. Instead of wasting energy that only produces visible light for the player, the system redirects part of this energy output to also serve as illumination for the camera, making the energy consumption productive for both visualization and detection functions.
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
Secures the brightness of the object captured in input interface systems, ensuring accurate object recognition and processing even in low-light conditions by dynamically adjusting the display's illumination based on player actions.
Implementation Method 1
the brightness of an image projected on the display is raised... the image projected on the display can be used as a means for illuminating the objects
Data Source
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AI summary
For an input interface apparatus for recognizing the motion of an object, there may be cases where the brightness of the object to be captured is insufficient. A camera (20) takes an image of the object operated by the object. A depth position detector (122) detects the position of the object based on captured frames. An action identifying unit (132) identifies an action of the player based on a result on the detection of the object. An input receiving unit (136) receives the action as an instruction to an input-receiving image displayed on a display. In response to the action, an illumination control unit (140) raises the brightness of the image projected on the display higher than that before the action is detected.