From 028696bf15efeca3acb3db8c42a96f7b9e0f55ff Mon Sep 17 00:00:00 2001
From: iovodov <b@ovdv.ru>
Date: Thu, 03 May 2018 13:33:46 +0000
Subject: [PATCH] Output improvements for detector results: When printing detector results, output was done in random order, obfuscating results for interpreting. Now: 1. Text output includes coordinates of rects in (left,right,top,bottom in pixels) along with label and score 2. Text output is sorted by rect lefts to simplify finding appropriate rects on image 3. If several class probs are > thresh for some detection, the most probable is written first and coordinates for others are not repeated 4. Rects are imprinted in image in order by their best class prob, so most probable rects are always on top and not overlayed by less probable ones 5. Most probable label for rect is always written first Also: 6. Message about low GPU memory include required amount

---
 src/compare.c |  115 +++++++++++++++++++++++++++++++++++++++++----------------
 1 files changed, 82 insertions(+), 33 deletions(-)

diff --git a/src/compare.c b/src/compare.c
index 0408f80..803d812 100644
--- a/src/compare.c
+++ b/src/compare.c
@@ -9,7 +9,6 @@
 
 void train_compare(char *cfgfile, char *weightfile)
 {
-    data_seed = time(0);
     srand(time(0));
     float avg_loss = -1;
     char *base = basecfg(cfgfile);
@@ -149,18 +148,21 @@
 typedef struct {
     network net;
     char *filename;
-    int class;
+    int class_id;
+    int classes;
     float elo;
+    float *elos;
 } sortable_bbox;
 
 int total_compares = 0;
+int current_class_id = 0;
 
 int elo_comparator(const void*a, const void *b)
 {
     sortable_bbox box1 = *(sortable_bbox*)a;
     sortable_bbox box2 = *(sortable_bbox*)b;
-    if(box1.elo == box2.elo) return 0;
-    if(box1.elo >  box2.elo) return -1;
+    if(box1.elos[current_class_id] == box2.elos[current_class_id]) return 0;
+    if(box1.elos[current_class_id] >  box2.elos[current_class_id]) return -1;
     return 1;
 }
 
@@ -170,7 +172,7 @@
     sortable_bbox box1 = *(sortable_bbox*)a;
     sortable_bbox box2 = *(sortable_bbox*)b;
     network net = box1.net;
-    int class   = box1.class;
+    int class_id   = box1.class_id;
 
     image im1 = load_image_color(box1.filename, net.w, net.h);
     image im2 = load_image_color(box2.filename, net.w, net.h);
@@ -182,22 +184,44 @@
     free_image(im1);
     free_image(im2);
     free(X);
-    if (predictions[class*2] > predictions[class*2+1]){
+    if (predictions[class_id*2] > predictions[class_id*2+1]){
         return 1;
     }
     return -1;
 }
 
-void bbox_fight(sortable_bbox *a, sortable_bbox *b)
+void bbox_update(sortable_bbox *a, sortable_bbox *b, int class_id, int result)
 {
     int k = 32;
-    int result = bbox_comparator(a,b);
-    float EA = 1./(1+pow(10, (b->elo - a->elo)/400.));
-    float EB = 1./(1+pow(10, (a->elo - b->elo)/400.));
-    float SA = 1.*(result > 0);
-    float SB = 1.*(result < 0);
-    a->elo = a->elo + k*(SA - EA);
-    b->elo = b->elo + k*(SB - EB);
+    float EA = 1./(1+pow(10, (b->elos[class_id] - a->elos[class_id])/400.));
+    float EB = 1./(1+pow(10, (a->elos[class_id] - b->elos[class_id])/400.));
+    float SA = result ? 1 : 0;
+    float SB = result ? 0 : 1;
+    a->elos[class_id] += k*(SA - EA);
+    b->elos[class_id] += k*(SB - EB);
+}
+
+void bbox_fight(network net, sortable_bbox *a, sortable_bbox *b, int classes, int class_id)
+{
+    image im1 = load_image_color(a->filename, net.w, net.h);
+    image im2 = load_image_color(b->filename, net.w, net.h);
+    float *X  = calloc(net.w*net.h*net.c, sizeof(float));
+    memcpy(X,                   im1.data, im1.w*im1.h*im1.c*sizeof(float));
+    memcpy(X+im1.w*im1.h*im1.c, im2.data, im2.w*im2.h*im2.c*sizeof(float));
+    float *predictions = network_predict(net, X);
+    ++total_compares;
+
+    int i;
+    for(i = 0; i < classes; ++i){
+        if(class_id < 0 || class_id == i){
+            int result = predictions[i*2] > predictions[i*2+1];
+            bbox_update(a, b, i, result);
+        }
+    }
+    
+    free_image(im1);
+    free_image(im2);
+    free(X);
 }
 
 void SortMaster3000(char *filename, char *weightfile)
@@ -220,7 +244,7 @@
     for(i = 0; i < N; ++i){
         boxes[i].filename = paths[i];
         boxes[i].net = net;
-        boxes[i].class = 7;
+        boxes[i].class_id = 7;
         boxes[i].elo = 1500;
     }
     clock_t time=clock();
@@ -233,7 +257,8 @@
 
 void BattleRoyaleWithCheese(char *filename, char *weightfile)
 {
-    int i = 0;
+    int classes = 20;
+    int i,j;
     network net = parse_network_cfg(filename);
     if(weightfile){
         load_weights(&net, weightfile);
@@ -242,41 +267,65 @@
     set_batch_network(&net, 1);
 
     list *plist = get_paths("data/compare.sort.list");
+    //list *plist = get_paths("data/compare.small.list");
+    //list *plist = get_paths("data/compare.cat.list");
     //list *plist = get_paths("data/compare.val.old");
     char **paths = (char **)list_to_array(plist);
     int N = plist->size;
+    int total = N;
     free_list(plist);
     sortable_bbox *boxes = calloc(N, sizeof(sortable_bbox));
     printf("Battling %d boxes...\n", N);
     for(i = 0; i < N; ++i){
         boxes[i].filename = paths[i];
         boxes[i].net = net;
-        boxes[i].class = 7;
-        boxes[i].elo = 1500;
+        boxes[i].classes = classes;
+        boxes[i].elos = calloc(classes, sizeof(float));;
+        for(j = 0; j < classes; ++j){
+            boxes[i].elos[j] = 1500;
+        }
     }
     int round;
     clock_t time=clock();
-    for(round = 1; round <= 40; ++round){
+    for(round = 1; round <= 4; ++round){
         clock_t round_time=clock();
         printf("Round: %d\n", round);
-        qsort(boxes, N, sizeof(sortable_bbox), elo_comparator);
-        sorta_shuffle(boxes, N, sizeof(sortable_bbox), 10);
+        shuffle(boxes, N, sizeof(sortable_bbox));
         for(i = 0; i < N/2; ++i){
-            bbox_fight(boxes+i*2, boxes+i*2+1);
-        }
-        if(round >= 4){
-            qsort(boxes, N, sizeof(sortable_bbox), elo_comparator);
-            if(round == 4){
-                N = N/2;
-            }else{
-                N = (N*9/10)/2*2;
-            }
+            bbox_fight(net, boxes+i*2, boxes+i*2+1, classes, -1);
         }
         printf("Round: %f secs, %d remaining\n", sec(clock()-round_time), N);
     }
-    qsort(boxes, N, sizeof(sortable_bbox), elo_comparator);
-    for(i = 0; i < N; ++i){
-        printf("%s %f\n", boxes[i].filename, boxes[i].elo);
+
+    int class_id;
+
+    for (class_id = 0; class_id < classes; ++class_id){
+
+        N = total;
+        current_class_id = class_id;
+        qsort(boxes, N, sizeof(sortable_bbox), elo_comparator);
+        N /= 2;
+
+        for(round = 1; round <= 100; ++round){
+            clock_t round_time=clock();
+            printf("Round: %d\n", round);
+
+            sorta_shuffle(boxes, N, sizeof(sortable_bbox), 10);
+            for(i = 0; i < N/2; ++i){
+                bbox_fight(net, boxes+i*2, boxes+i*2+1, classes, class_id);
+            }
+            qsort(boxes, N, sizeof(sortable_bbox), elo_comparator);
+            if(round <= 20) N = (N*9/10)/2*2;
+
+            printf("Round: %f secs, %d remaining\n", sec(clock()-round_time), N);
+        }
+        char buff[256];
+        sprintf(buff, "results/battle_%d.log", class_id);
+        FILE *outfp = fopen(buff, "w");
+        for(i = 0; i < N; ++i){
+            fprintf(outfp, "%s %f\n", boxes[i].filename, boxes[i].elos[class_id]);
+        }
+        fclose(outfp);
     }
     printf("Tournament in %d compares, %f secs\n", total_compares, sec(clock()-time));
 }

--
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