From 2ce6460c79e06caa33eab3991ee3e7fd9f0909d6 Mon Sep 17 00:00:00 2001
From: AlexeyAB <alexeyab84@gmail.com>
Date: Tue, 10 Apr 2018 18:08:24 +0000
Subject: [PATCH] Remove truth only if smaller than 1x1 pix during training
---
src/data.c | 17 +++++++++++------
1 files changed, 11 insertions(+), 6 deletions(-)
diff --git a/src/data.c b/src/data.c
index 88d5720..abdb043 100644
--- a/src/data.c
+++ b/src/data.c
@@ -292,7 +292,8 @@
free(boxes);
}
-void fill_truth_detection(char *path, int num_boxes, float *truth, int classes, int flip, float dx, float dy, float sx, float sy, int small_object)
+void fill_truth_detection(char *path, int num_boxes, float *truth, int classes, int flip, float dx, float dy, float sx, float sy,
+ int small_object, int net_w, int net_h)
{
char labelpath[4096];
find_replace(path, "images", "labels", labelpath);
@@ -306,10 +307,12 @@
int count = 0;
int i;
box_label *boxes = read_boxes(labelpath, &count);
+ float lowest_w = 1.F / net_w;
+ float lowest_h = 1.F / net_h;
if (small_object == 1) {
for (i = 0; i < count; ++i) {
- if (boxes[i].w < 0.01) boxes[i].w = 0.01;
- if (boxes[i].h < 0.01) boxes[i].h = 0.01;
+ if (boxes[i].w < lowest_w) boxes[i].w = lowest_w;
+ if (boxes[i].h < lowest_h) boxes[i].h = lowest_h;
}
}
randomize_boxes(boxes, count);
@@ -326,7 +329,9 @@
id = boxes[i].id;
// not detect small objects
- if ((w < 0.001 || h < 0.001)) continue;
+ //if ((w < 0.001F || h < 0.001F)) continue;
+ // if truth (box for object) is smaller than 1x1 pix
+ if ((w < lowest_w || h < lowest_h)) continue;
truth[i*5+0] = x;
truth[i*5+1] = y;
@@ -738,7 +743,7 @@
//show_image(ai, "aug");
//cvWaitKey(0);
- fill_truth_detection(filename, boxes, d.y.vals[i], classes, flip, dx, dy, 1./sx, 1./sy, small_object);
+ fill_truth_detection(filename, boxes, d.y.vals[i], classes, flip, dx, dy, 1./sx, 1./sy, small_object, w, h);
cvReleaseImage(&src);
}
@@ -789,7 +794,7 @@
random_distort_image(sized, hue, saturation, exposure);
d.X.vals[i] = sized.data;
- fill_truth_detection(random_paths[i], boxes, d.y.vals[i], classes, flip, dx, dy, 1. / sx, 1. / sy, small_object);
+ fill_truth_detection(random_paths[i], boxes, d.y.vals[i], classes, flip, dx, dy, 1. / sx, 1. / sy, small_object, w, h);
free_image(orig);
free_image(cropped);
--
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