100 lines
No EOL
4.4 KiB
JSON
100 lines
No EOL
4.4 KiB
JSON
{
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// Define parameters
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// ========================================================
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// Unit abbreviations:
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// dva: degrees of visual angle
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// pix: pixels
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"verbose": true,
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// display: Defines geometry of target display
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// ========================================================
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// The encoded image will be scaled such that it optimally uses
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// the max space available. If the orignal image has a different aspect
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// ratio than the display region, it will only use one spatial
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// dimension (horizontal or vertical) to its full extent
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//
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// If one dva corresponds to different pix_per_dva on the display,
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// (i.e. varying distance observers from screen), it should be set
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// larger than the largest pix_per_dva required, for avoiding
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// extrapolation artefacts or blur.
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//
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"display": {
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"size_max_x_dva": 10.0, // maximum x size of encoded image
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"size_max_y_dva": 10.0, // minimum y size of encoded image
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"pix_per_dva": 40.0, // scaling factor pixels to dva
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"scale": "same_range" // "same_luminance" or "same_range"
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},
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// gabor: Defines paras of Gabor filters for contour extraction
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// ==============================================================
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"gabor": {
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"sigma_kernel_dva": 0.06,
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"lambda_kernel_dva": 0.12,
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"n_orientations": 8
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},
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// encoding: Defines parameters of sparse encoding process
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// ========================================================
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// Roughly speaking, after contour extraction dictionary elements
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// will be placed starting from the position with the highest
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// overlap with the contour. Elements placed can be surrounded
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// by a dead or inhibitory zone to prevent placing further elements
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// too closely. The procedure will map 'n_patches_compute' elements
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// and then stop. For each element one obtains an overlap with the
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// contour image.
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//
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// After placement, the overlaps found are normalized to the max
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// overlap found, and then all elements with a larger normalized overlap
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// than 'overlap_threshold' will be selected. These remaining
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// elements will comprise a 'full' encoding of the contour.
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//
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// To generate even sparser representations, the full encoding can
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// be reduced to a certain percentage of elements in the full encoding
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// by setting the variable 'percentages'
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//
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// Example: n_patches_compute: 100 reduced by overlap_threshold: 0.1
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// to 80 elements. Requesting a percentage of 30% yields representation
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// with 24 elements.
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//
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"encoding": {
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"n_patches_compute": 100, // this amount of patches will be placed
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"use_exp_deadzone": true, // parameters of Gaussian deadzone
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"size_exp_deadzone_dva": 1.20, // PREVIOUSLY 1.4283
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"use_cutout_deadzone": true, // parameters of cutout deadzone
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"size_cutout_deadzone_dva": 0.65, // PREVIOUSLY 0.7575
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"overlap_threshold": 0.1, // relative overlap threshold
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"percentages": 100
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},
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"number_of_patches": 100, // TODO: Repeated from encoding
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// dictionary: Defines parameters of dictionary
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// ========================================================
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"dictionary": {
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"size_dva": 1.0, // PREVIOUSLY 1.25,
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"clocks": {
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"n_dir": 8, // number of directions for clock pointer segments
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"n_open": 4, // number of opening angles between two clock pointer segments
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"pointer_width": 0.07, // PREVIOUSLY 0.05, // relative width and size of tip extension of clock pointer
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"pointer_length": 0.18 // PREVIOUSLY 0.15, // relative length of clock pointer
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},
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"phosphene": {
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"sigma_width": 0.18 // DEFAULT 0.15, // half-width of Gaussian
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}
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},
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// control: For controlling plotting options and flow of script
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// ========================================================
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"control": {
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"force_torch_use_cpu": false, // force using CPU even if GPU available
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// "show_capture": true, // shows captured image
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// "show_object": true, // shows detected object
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"show_mode": "cv2", // "pyplot" or "cv2"
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"show_image": true, // shows input image
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"show_contours": true, // shows extracted contours
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"show_percept": true // shows percept
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}
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} |