facsimile picture signal

2000 ◽  
pp. 566-566
Author(s):  
Martin H. Weik
Keyword(s):  
Picture Signal

Payoff Changes Sensitivity by Modulating the Processing Style

Perception ◽  
10.1068/p7124 ◽  
2012 ◽  
Vol 41 (5) ◽  
pp. 623-625
Author(s):  
Magdalena Krol ◽  
Wael El-Deredy
Keyword(s):  
Decision Making ◽  
Signal Detection ◽  
Sensory Input ◽  
Perceptual Task ◽  
Perceptual Decision Making ◽  
Processing Style ◽  
Detection Analysis ◽  
Signal Detection Analysis ◽  
Picture Signal ◽  
Higher Sensitivity

In a perceptual decision-making task, we compared a neutral payoff and two asymmetric payoffs: a liberal one, favouring positive responses, and a conservative one, favouring negative responses. Participants were presented with ambiguous images composed of superimposed target and non-target photographs, and asked to decide whether the target dominated in the picture. Signal-detection analysis demonstrated that the liberal payoff yielded significantly higher sensitivity than other payoffs. We argue that the liberal payoff encourages confirming the target's domination, hence making it easier to ignore non-target elements of the picture. We conclude that payoff can influence perceptual decisions by changing the approach to the perceptual task, and how attention is allocated between different elements of the sensory input.

3D Electronic Products Surface Measurement System Based on Machine Vision

2013 ◽  
Vol 579-580 ◽  
pp. 630-636
Author(s):  
Yuan Feng Zhu ◽  
Li Zhang ◽  
Ke Tian Li
Keyword(s):  
Real Time ◽  
High Speed ◽  
Lower Cost ◽  
Three Dimensional ◽  
Surface Measurement ◽  
Object Surface ◽  
Electronic Products ◽  
Feature Information ◽  
Picture Signal ◽  
Pseudo Color

Adopting high-speed line scan industrial camera, through window function of the software to capture interested areas scanning by linear structured light, through image processing algorithms and splicing technique to extract 3D feature information of the detected object surface, combined with the camera calibration technology, calculated the three-dimensional coordinates of the detected object, and real-time displayed intuitive pseudo color map, monitored picture signal and weeded out unqualified products. Compared with similar systems at home and abroad, the system are real-time pseudo color graphics display, open system and lower cost.

scholarly journals New security approach-based Steganography and Cryptography by modified AES algorithm

2021 ◽  
Vol 10 (1) ◽  
pp. 214-220
Keyword(s):  
Information Transmission ◽  
Advanced Encryption Standard ◽  
Discrete Wavelet ◽  
Least Significant Bit ◽  
Aes Algorithm ◽  
Transmission Of Information ◽  
Low Pass ◽  
Lsb Technique ◽  
Picture Signal ◽  
Modified Aes

The transmission of information through any channel of correspondence needs solid encryption procedures with the end goal of information security. The computerized watermarking assumes a significant part in inserting data into an advanced picture signal, for the check and character of its proprietors. In discrete wavelet change, "investigation channel bank" can be utilized for dissecting picture signals by going through. The channel bank comprises high and low pass channels at every deterioration stage. In this paper, a technique to consolidate steganography (Least Significant Method-LSM) and cryptography Advanced Encryption Standard (AES) is thought to give a safer method to information transmission through any unstable or public organizations. Prior to inserting the content in the picture, the text is scrambled utilizing AES calculation. Utilizing least significant bit (LSB) strategy, encoded the text installed in low-low (LL) subband wavelet decayed of a picture. Converse wavelet changes applied will lead to the output picture is communicated to the recipient. Presently at the collector's end, the picture changed utilizing wavelet and encoded text will be extricated by utilizing the LSB technique. This paper shows how AES calculation is utilized in the decoding of the outcome.

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