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This commit is contained in:
Joseph Redmon
2015-09-09 12:48:40 -07:00
parent b5936b499a
commit 393dc8eb6f
10 changed files with 415 additions and 36 deletions
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17
src/detection_layer.c
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@ -85,11 +85,12 @@ void forward_detection_layer(const detection_layer l, network_state state)
int size = get_detection_layer_output_size(l) * l.batch;
memset(l.delta, 0, size * sizeof(float));
for (i = 0; i < l.batch*locations; ++i) {
int classes = l.objectness+l.classes;
int classes = (l.objectness || l.background)+l.classes;
int offset = i*(classes+l.coords);
for (j = offset; j < offset+classes; ++j) {
*(l.cost) += pow(state.truth[j] - l.output[j], 2);
l.delta[j] = state.truth[j] - l.output[j];
if(l.background && j == offset) l.delta[j] *= .1;
}
box truth;
@ -115,9 +116,15 @@ void forward_detection_layer(const detection_layer l, network_state state)
l.delta[j+2] = 4 * (state.truth[j+2] - l.output[j+2]);
l.delta[j+3] = 4 * (state.truth[j+3] - l.output[j+3]);
if(l.rescore){
for (j = offset; j < offset+classes; ++j) {
if(state.truth[j]) state.truth[j] = iou;
l.delta[j] = state.truth[j] - l.output[j];
if(l.objectness){
state.truth[offset] = iou;
l.delta[offset] = state.truth[offset] - l.output[offset];
}
else{
for (j = offset; j < offset+classes; ++j) {
if(state.truth[j]) state.truth[j] = iou;
l.delta[j] = state.truth[j] - l.output[j];
}
}
}
}
@ -145,7 +152,7 @@ void backward_detection_layer(const detection_layer l, network_state state)
if (l.objectness) {
}else if (l.background) gradient_array(l.output + out_i, l.coords, LOGISTIC, l.delta + out_i);
for(j = 0; j < l.coords; ++j){
for (j = 0; j < l.coords; ++j){
state.delta[in_i++] += l.delta[out_i++];
}
if(l.joint) state.delta[in_i-l.coords-l.classes-l.joint] += latent_delta;