Gain Setting Display with Noise Level Indication for Video Imaging
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Solution Overview
Problem
Camera operators face challenges in recognizing changes in noise levels when adjusting ISO sensitivity or gain settings, leading to unexpected noise in video images due to differences in amplification factors between amplifiers, resulting in imaging failures.
Innovation Solution
An apparatus with a conversion unit, amplification unit, processor, and memory that displays multiple gain setting values on a screen, allowing operators to select a gain setting value while visually indicating the resulting noise level, enabling precise gain adjustments and noise level recognition.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If the amplification factor of video amplifiers is adjusted to change gain settings, then the signal level is improved, but the noise level generated by the amplifiers changes unpredictably
Solution Approach 1:
The system measures the actual noise level generated by each amplifier at different gain settings and feeds this information back to the control unit. The control unit then uses this feedback to calculate and display accurate noise level information to the operator, enabling informed gain setting decisions that balance signal amplification with noise control
Solution Approach 2:
A noise level measurement unit is introduced as an intermediary component that objectively measures the noise generated by amplifiers. This intermediary provides accurate noise level data to the control unit, which then presents this information to the operator through the display, bridging the gap between amplifier output and operator perception
2Adaptability or versatility
If multiple amplifiers are used to amplify video signals, then the signal processing capability is improved, but the difference in noise level changes between amplifiers causes unpredictable noise in the video image
Solution Approach 1:
The system individually measures and evaluates the noise characteristics of each amplifier separately through the noise level measurement unit. This segmentation allows the control unit to understand the specific noise behavior of each amplifier, enabling reliable selection and combination of amplifiers that maintains consistent noise levels across different signal processing paths
3Ease of operation
If the gain setting is changed without displaying noise level information, then the ease of operation is improved, but the operator cannot recognize noise level changes in advance
Solution Approach 1:
The system adds a new dimension of information display by showing noise level data alongside the gain settings on the display unit. This additional dimensional information allows operators to make informed decisions about gain settings while maintaining ease of operation, as the noise level information is presented in an integrated and accessible manner
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
Enables camera operators to adjust ISO sensitivity or gain settings while easily recognizing noise level changes, preventing unexpected noise in video images and improving imaging quality by providing clear noise level feedback.
Implementation Method 1
a conversion unit configured to convert light into a signal
Data Source
AI summary
When displaying a plurality of gain setting values on a setting screen, an apparatus performs control so as to display each of the gain setting values in a display style that makes identifiable a noise level generated as a result of amplification of a signal based on each of the gain setting values.