I implemented a code to gabor filter cifar10 data but the images after being filtered and stacked are not clear like the original images. I think the problem is in the way I am using the values for gabor filter's parameters. These values should work because I got them form this paper 'Adding biological constraints to CNNs makes image classification more human-like and robust'
Here are the values:
kernel size = 31*31
thatas = 0, pi/8, pi/4, pi*3/8, pi/2, pi*5/8, pi*3/4, pi*7/8
offset (psi)= 0, pi/2, pi, pi*3/2
gamma = 0.5, 1
lambda = 5
bandwidth = 1,1.4,1.8
For sigmas I used equation (3) from paper 'Adding biological constraints to CNNs makes image classification more human-like and robust'
sigma_x = (lambda/pi)*(sqrt(np.log(2)/2))*((2**b + 1)/(2**b - 1))
sigma_y = sigma_x/gamma
I do not think the problem is in the code itself because I am using the ready gabor filter function provided from tensorflow:
tfio.experimental.filter.gabor( input, freq, sigma=None, theta=0, nstds=3, offset=0, mode=None, constant_values=None, name=None)
I used it such that
freq = 1/lambda
theta = theta
nstds = kernel size
offset = psi
sigma = [sigma_x, sigma_y]
Instead of checking only the mRNA level, I want to check the active protein level of MMP-1 in Liver tissue from mice. How can I do that?
03 March 2021 1,763 2 View
I want to analyses the proportion of swimming sperm of three species of fish in two salinities. To analyse the proportion of swimming sperm in a Generalized Linear Model, I would use a Binary...
03 March 2021 2,297 3 View
03 March 2021 8,272 1 View
Hi. Please tell me what guidelines should i need to follow for questionaries' type research work in India. It is not hospital based work, we are conduction basic institutional based qualitative...
03 March 2021 2,037 3 View
i am try to classify the x-ray images. During classification , can i block unwanted images (except x-ray image).
03 March 2021 7,100 1 View
The term miscibility refers to the single-phase state in thermodynamics. I do not mean the compatibility of different components. To determine the miscibility I know several techniques such as...
03 March 2021 4,107 4 View
If the detection range is in ng/ml but the reference range is in ug/ml for a molecule or protein in serum or plasma .how to dilute and what is the initial volume to be taken for quantitative analysis
02 March 2021 7,670 3 View
Question to you and THEM, the New Journal, "Integrative Psychological and Behavioral Science" -- do you not know, and have you not seen, this done before? There appears to be a core problem for...
02 March 2021 3,024 2 View
I analyzed flavonoid total spectrophotometry, the procedure as below: 2 ml supernatan added 5 ml dd.H2O, then added 0,15 ml NaNO2 5%, 5 minutes later added 0,15 ml AlCl3 10%, After 6 minutes,...
01 March 2021 6,722 1 View
Pls share your thoughts
01 March 2021 7,330 4 View
What I think is Dithiothreitol. As it is water-soluble and does not form a precipitate. But, the thing is it contains sulphur which is quite hazardous to aquatic animals.
01 March 2021 8,374 4 View
Hello everyone, I have some PHAs blended with fillers and nucleating agents, yet I don't know what kind of fillers or nucleating agents. The producer has shut down and there's no way to get in...
24 February 2021 1,356 8 View
Hi all, I have data with two levels: lets think of the classic example of students and schools. When running the analysis in SPSS and selecting the Random Effects, we can select (we can or we...
24 February 2021 7,379 4 View
I used EdgeR to get the list of DEGs (differentially expressed genes) from my liver RNA-seq experiment. I have done the gene overrepresentation and GSEA based pathway analysis. I am currently...
23 February 2021 8,969 1 View
Dear colleagues, Do you think there is cognitive oversaturation in the current pandemic? What impact can this have? And other manifestations? The question is mainly aimed at adolescents (pupils,...
23 February 2021 7,796 4 View
Hi everyone, I am just wondering if we incubated 200 microliter of whole blood with 50 microliter of cancer cells(1bout 5000cells) do you think that cancer would survive for 48 hours?
23 February 2021 3,840 3 View