KEYWORDS: Eye, Eye models, Performance modeling, Target detection, Target recognition, Linear filtering, Systems modeling, Visual process modeling, 3D modeling, Data modeling
Based on the photon noise fluctuation theory and the linear filter theory, the two-dimension performance model for
human eye will be established in this paper, which is denominated as "the photon detector and linear filter synthesis
performance model" or "wave-particle duality performance model". Two-dimension threshold resolution angle and two
dimension universal apparent distance detecting equation for human eye will be studied and derived on the large-scale
luminance level. The relationship between the threshold detecting theory for human eye and the improved Johnson
criteria will be established and the new number of the resolvable circles across the target and background for detection,
recognition and identification will be put forward. All of these are coincident with the visual theory and threshold
characteristics of the human eye as well as many actually measured data.
Based on the photon noise fluctuation theory and the linear filter theory, the new performance model for human eye will
be established in this paper, which is denominated as "the photon detector and linear filter synthesis performance model"
or "wave-particle duality performance model". The threshold resolution angle and universal apparent distance detecting
equation for human eye will be studied and derived in the large-scale luminance level. The traditional limiting resolution
angle and apparent distance detecting equation for human eye will be improved and discussed in detail. The relationship
between the threshold detecting theory for human eye and the improved Johnson criteria will be set up and the new
number of the resolvable circles across the target and background for detection, recognition and identification will be put
forward. All of these are coincident with the visual theory and threshold characteristics of the human eye as well as many
actually measured data.
The two dimension performance model for low light level (LLL ) imaging systems will be studied and built in this paper,
which is based and improved on the Johnson criteria and can also be used for thermal imaging systems. Two dimension
threshold resolution angle and universal apparent distance detecting equation for LLL imaging systems will be given out.
The new number of the resolvable circles across the target and the background for detection, recognition and
identification will be put forward and some different definition for Johnson criteria will be discussed. Two dimension
performance model is more accuracy and nearer practice than one dimension models especially for the case of the length
is much larger than the width of the target and the background.
The important function and signification of researching on performance model for photo electronic systems is discussed,
and the emphasis is on the thermal imaging system models for their technical characteristics and developing history.
Based on analyzing and studying existing detection theory and performance models of thermal imaging systems
limitations and deficiencies are pointed out. The proposals for establishing the new threshold detection theory, apparent
distance detecting equation and performance model are put forward in this paper, which will be based on the quantum
noise fluctuation theory and linear filter theory, the threshold characteristics and visual theories of the human eye, and
can been widely used in the first and second generation thermal imaging systems.
Starting from threshold characteristics and night visual theory of the human eye the new quanta detector and linear filter
integrated performance model, universal threshold detecting theory and synthesis detecting equations for LLL (low light
level) TV imaging systems have been put foreword and established, which set up together active regularity and
connection between photon noise fluctuation theory and linear filter theory. By using the new performance model and
apparent distance detecting equations many specific properties of LLL TV imaging system, such as brightness
intensified, visual angle enlarged, signal to noise ratio and contrast transferred and attenuated, can be correctly
expressed, calculated and evaluated. The characteristics of the human eye can also be correctly reflected and described.
The identity of the minimum resolvable temperature difference MRTD and the minimum detectable temperature difference MDTD for the thermal imaging systems (TIS) will be proven and new unite expression fo MRTD and MDTD will be derived in this paper, which is important for researching new performance model of thermal imaging systems.
KEYWORDS: Eye, Imaging systems, Performance modeling, Eye models, Visual process modeling, Target detection, Linear filtering, Image intensifiers, Image resolution, Signal to noise ratio
Based on the photon noise fluctuation theory, the linear filter theory, the threshold specific characteristics and vision theories of the human eye, the new performance model and universal apparent distance detecting equation for LLL (low light level) imaging system will be established and further development in this paper.
Based on the photon noise fluctuation theory linear filter theory the threshold specific characteristics and vision theories of the human eye, a new threshold detection theory and apparent distance detecting equation of LLL imaging system will be established and derived in this paper.
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