one stage
Post on 30-Dec-2015
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one stage
Recognition 1. 不知道有幾個字
2. 不知道 ( 答案 ) 是那些字
考慮所有情況 (411+1+1)
bre
sil
syll
syll
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syll ........
bre
sil
syll
bre
sil
syll
Intra-syllable
Inter-syllable
bre
sil ....
bre
syll
....
bre
syll
....
bre
sil
syll
....
bre
sil
syll
State 的情形
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frame
model
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start end
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frame 對 model 的所有情況
One-stage 的方法 :
對所有的 states(411*8+1+3) 做三件事 :
(1) 找出最佳路徑
(2) 記錄最佳路徑 (backtrace)
(3) 累加 likehood
1. 第一個 state 從 (411+1+1) 條路徑中選最好的 (top_one search)
2. 其他 state 就自已、前一個
Begin
Allocate• L, LL(likelihood)• BK, BBK(for back trace)• D, DD(state duration)
Initialization (t=0)• observation prob(t=0)• disable all models (D=0)• enable first state of all syllable and silence , breath• top_likelihood • Top_model• FM[0] = MODEL-2(for back trace )• FF[0] = -1(for time )
Switch buffer• L,LL• BK,BBK• D,DD
Disable all models• D = 0
Top_one_search• for 411 syllable , silence ,breath
• update top_likelihood• update top_model
t
1
1
t>Nframe
1
1
2
2
Find optimal path• back trace to find recognized text and segment position
end
411 model
411 model Initial • state 0(first)self
top_model
• other statesself
last state
411 model final• state 3self
last state of initial
• other statesself
last state
411 modelBreathe model• state 0self
top_model
• other statesself
last state
silence model• state 0self
top_mode
One_stage的程式流程
top related