PRODUCT SUMMARY KS7332 digital image signal handling aimed improving i
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KS7332
PRODUCT SUMMARY KS7332 digital image signal handling aimed improving image contrast counter light correction, applicable CCD-using video camera systems such camcorders surveillance cameras. KS7332 receives output digital data, analyzes image's luminance distribution, then outputs signal with improved dynamic range luminance color difference. also uses spatial adaptive filter remove intensity noise output stable image. FEATURES NTSC/PAL, Normal/Hiband, compatible 10-bit input Digital clamp expansion using non-linear histogram modification Look table (LUT) transform using line memory signals' component correction look-up-table transform Built-in memory histogram storage Image analysis with histogram function reference Color sensitivity correction Serial micom interface Built-in operation connection with 10-bit signal output Spatial adaptive noise removal filter intensity images Interpretation image characteristic through graphic
48-LQFP-0707
MANUFACTURING PROCESS PACKAGE Manufacturing process: 0.35 silicon gate metals 3.3V CMOS (CSP7L)
APPLICATIONS Camcorder system Surveillance camera, camera
KS7332
DIAGRAM
SCANEN
MDSEL1
MDSEL0
TSTO
HD12
HIGH
TSTI
KS7332
RSTN
SCSN
SCLK
Figure Diagram
KS7332
DESCRIPTION
Table Description Name RSTN SCLK SCSN MDSEL0 MDSEL1 HIGH SCANEN Description Vertical driving pulse Vertical transfer pulse horIzontal driving pulse Power System clock System reset Serial data input from system micom System micom clock System micom reset Ground Serial data output system micom Micom data order S1S2 data output S1S2 data output Power S1S2 data output S1S2 data output S1S2 data output S1S2 data output S1S2 data output S1S2 data output Ground S1S2 data output S1S2 data output Operation mode selection Operation mode selection Power mode enable signal mode enable signal High mode enable signal Scan enable signal Namd tree output NTSC High Normal Normal Normal Normal TRI-State Scsn ACT. first first ADCK (KS7331) Note
KS7332
Table Description(Continued) Name HD12 TSTI TSTO delay output Ground Test input Test output S1S2 data input from S1S2 data input from Power S1S2 data input from S1S2 data input from S1S2 data input from S1S2 data input from S1S2 data input from S1S2 data input from Ground S1S2 data input from S1S2 data input from Description Note
KS7332
BLOCK DIAGRAM
SPSRAM LUTB SPSRAM 1023 Preprocess SPSRAM Histogram
SPSRAM GRAPH
SPSRAM LUTA
GRAPH
TPUT/ BITS Gnal
Preprocess
Histogram
Lookuptable
Luminance EXPAND
ALPF
S1/10B
Segmentation
SPSRAM ALPHA
Chrominance EXPAND
MICOM
SYNC_GEN
Figure Block Diagram
KS7332
DESIGN CHARACTERISTICS
ABSOLUTE MAXIMUM RATINGS Table Absolute Maximum Ratings Item supply voltage (digital) input voltage Storage temperature Latch-up current Symbol TSTG Rating -0.3 -0.3 +0.3 ±100 Unit Remark
OPERATING TEMPERATURE KS7332 functions within +70°C characteristics must satisfy specifications. ELECTROSTATIC CHARACTERISTICS Table Electrostatic Characteristics Item Human body model (HBM) Machine model (MM) Electrostatic Standard Design Goal ±2000 ±300 ±800 Unit Remark
ELECTRICAL CHARACTERISTICS (DC) 0.3V, Table Electrical Characteristics (DC) Item Supply voltage Input voltage Output voltage Input current Output leakage current Operating current Static current
[REMARK] Input pins output pins except (Tri-state)
Symbol High level level High level level High level level Tri-state
Condition -1mA VOUT
Unit
Remark VDD, VDDA
KS7332
ELECTRICAL CHARACTERISTICS (AC) Table Electrical Characteristics (AC) Item Signal Symbol Design Goal Characteristics Input data setup time Input data hold time SI0, SI0, 3.3V 0.3V VDD= 3.3V 0.3V Unit Remark
SI10,
KS7332
SYSTEM CONFIGURATION OPERATION DESCRIPTION
SYSTEM CONFIGURATION
KS7332 Graphic Block
Sync Signal Generation Block
Preprocessing Block Expanded Signal Synthesizer
Histogram Generating Block
Segmentation Block
Adaptive Block
Lookuptable Block
Chrominance Expander Block
Micom
Luminance Expander Block
System Micom
Figure System Configuration
KS7332
preprocessing block receives 10-bit output, carries digital clamping, black line detection correction, preprocess pass filtering. histogram generating block uses preprocessing block's output generate probability density function image signal luminance output, stores line memory. also generates signal adjusting luminance distribution sends segmentation block look-up-table generating block. histogram generating block composed active area selection block, luminance signal separation block that uses LPF, histogram accumulation block that uses line memory, histogram clip block. segmentation block uses accumulated histogram generate back bias impressing conditions sends them MICOM module improvement dynamic range. segmentation block composed histogram organizing block, histogram integrating block, gamma adjusting block, back bias adjusting block, block that probes minimum segment using accumulated histograms. look-up-table block uses output histogram generating block segmentation block generate conversion function improvement dynamic range. composed histogram integrating block, look-up-table generating block, look-up-table differentiation. luminance expander receives value from look-up-table block stores line memory. also moves address stores different line memory. values stored line memories through spatial temporal interpolation receive data with expanded band zone luminance signals. luminance expander composed blocks that carry following functions: function LUT-storing line Memory, temporal interpolation function, spatial interpolation function, 8-bit division function gain calculation, expanded luminance signal output function. chrominance expander receives outputs preprocessing block luminance expander, adjusts color difference signal according ratio between expanded non-expanded luminance signals, outputs expanded chrominance signal. also adjusts color data's sensitivity according band zone luminance signal. adaptive block receives output chrominance expander, reduces high frequency components such noise areas with little change grey level, emphasizes edge other minute details. also uses high pass filter extract edge image. graphic block receives accumulated histogram data, shows them graphic data currently visible screen. Also, graphic data placed middle screen while 10-bit signals, expanded brightness signals, expanded color signals, edge signals, noiseless color signals output background according need. expanded signal synthesizer receives 10-bit signals, expanded luminance signals, expanded color signals, edge signals, noiseless color signals. chooses needed signals outputs them exterior. also carries time delay each signal that same delay final output.
KS7332
SYSTEM OPERATION DESCRIPTION Sync Signal Generating Block sync signal generating block generates horizontal/vertical count data using sync signal from Timing Generator (TG). also generates (Start Point) data using DVC, HIGH, PAL, AP_ADJ (Start Point Adjustment) from System MICOM, (Field) signals using signals. Internal vertical counter (VCNT: line counter) Internal horizontal counter (HCNT: pixel counter) Internal field signal (FLD) Internal horizontal active area signal (HACTIVE) Internal vertical active area signal (VACTIVE)
Preprocessing Block preprocessing block uses CCD's output carry digital clamping, black line detection correction, preprocess pass filtering, then outputs histogram generating block. Digital clamping Black line detection correction Preprocess pass filtering
Histogram Generating Block histogram generating block uses output from preprocessing block generate probability density function video signal's luminance output stores line memory. signal luminance distribution adjustment generated sent segmentation block look-up-table block. ACTIVE Area Selection Luminance Signal Separation using Histogram Accumulation using Line Memory Histogram Clip feature
Segmentation Block segmentation block uses accumulated histogram from histogram generating block improvement dynamic range. back bias impressing conditions generated sent look-up-table block MICOM module. Histogram segmentation Histogram integration Histogram minimum section probing feature Gamma control Back bias adjustment
KS7332
Look-Up-Table Block look-up-table block uses output histogram generating block segmentation block generate conversion function improvement dynamic range. composed histogram integrating block, look-up-table generating block, look-up-table differentiation. Histogram Integration Look-Up-Table Generating ability Look-Up-Table Differentiation
Luminance Expander luminance expander receives value from look-up-table block stores line memory. also moves address stores different line memory. values stored line memories through temporal spatial interpolation receive data with expanded band zone luminance signals. Line memory function look-up-table value storage Temporal interpolation Spatial interpolation 8-bit division gain calculation Expanded luminance signal output feature
Chrominance Expander chrominance expander receives outputs preprocessing block luminance expander, adjusts color difference signal according ratio between expanded non-expanded luminance signals, outputs expanded chrominance signal. also adjusts color data's sensitivity according band zone luminance signal. Color difference signal adjustment according ratio between expanded non-expanded luminance signals Color data sensitivity adjustment according luminance signal band zone
Adaptive Block adaptive block receives output chrominance expander, reduces high frequency components such noise areas with little change grey level, emphasizes edge other minute details. also uses high pass filter extract edge image. Horizontal signal delay Weight calculation neighboring picture element pixels Adaptive noise elimination Edge emphasis extraction
KS7332
Graphic Block graphic block receives accumulated histogram data, shows them graphic data currently visible screen. Also, graphic data placed middle screen while 10-bit signals, expanded luminance signals, expanded color signals, edge signals, noiseless color signals output background according need. Fixing graphic data middle Graphic data output Background screen selection output Graphic data status selection
Expanded Signal Synthesizer expanded signal synthesizer receives 10-bit signals, expanded luminance signals, expanded color signals, edge signals, noiseless color signals. chooses needed signals outputs them exterior. also carries time delay each signal that same delay final output. 10-bit signal input feature Expanded luminance signal input feature Expanded color signal input feature Edge signal input feature Noiseless color signal input feature Selective input signal output Input signal delay feature
KS7332
MICOM REGISTER TABLE
OPERATION DESCRIPTION start signal clock operate slave mode, this part nonsychronous rest system. register setting normally carried segments within field, latched negedge when scsn restored high.
SCSN
SCLK
si_data[255]
si_data[254]
si_data[0]
so_data[255] so_data[254] so_data[0]
Figure Operation Description
Symbol
Description SCSN edge SCLK edge SCLK high edge SCSN high edge SCLK high width SCLK width data setup time data hold time data delay time
Standard (µs)
KS7332
MICOM INPUT Table Micom Input Register Bits MICOM Command Function OUT_MODE [2:0], DLY_MODE [4:0] OUT_MODE: Output mode selection OUT_MODE [255:248] Default Input Preprocess module output output Saturation output Graphic output EDGE output saturation ALPF output MODE 1111_0001 Default Value
Output delay mode selection matching output's delay DLY_MODE 00000 00001 00010 10100 Default delay clock delay clock delay clock delay clock delay MODE
KS7332
Table Micom Input(Continued) Register Bits MICOM Command Function CLPEN, SORSL, V1_EXIST, GR_MODE [1:0], GRB_MODE [2:0] 111X_XXXX Default Value
CLPEN
SORSL
V1_EXIST
GR_MODE [1:0]
GRB_MODE [2:0]
[247:240]
CLPEN: On/off digital clamp operation; '1', On/off preprocess operation; '0', V1_EXIST: signal existence; '0', GR_MODE: Graphic mode GR_MODE[0]: Histogram CLIP feature (DO_HIST GR_MODE[0]) GR_MODE[1]: DOT/White graphic selection feature '1', WHITE GRB_MODE Background screen graphic mode GRB_MODE Default Black Input Preprocess module output output Saturation output EDGE output saturation ALPF output 0000_0000 MODE
CMP_ADJ [3:0], SP_ADJ [3:0] [239:232]
CMP_ADJ: Digital clamp operating range adjustment SP_SDJ: Starting point adjustment horizontal active area selection POFFSET [7:0] 0000_0000
[231:224]
POFFSET [7:0] POFFSET: Used when adding subtracting OFFSET picture element pixels, integrated averaged over TCLP SP_H [7:0] 0001_1001
[223:216]
SP_H [7:0] Horizontal active starting point active area selection SP_H
KS7332
Table Micom Input(Continued) Register Bits MICOM Command Function LP_H [7:0] [215:208] 0111_1101 Default Value
LP_H [7:0] Horizontal active starting point active area selection LP_H SP_V [7:0] 0001_0100
[207:200]
LP_H [7:0] Vertical active starting point active area selection LP_V [7:0]
1111_0000
[199:192]
LP_V [7:0] Vertical active starting point active area selection EDGE_AMP [3:0], BACK_SP [3:0]
0000_0000
EDGE_AMP [3:0] EDGE_AMP: EDGE amplification ratio Back bias allocation conditions BACK_SP 0000 0001 1000 1111 Default
NOTES: Given value between Back-bias point from hlog value
BACK_SP [3:0]
[191:184]
MODE back bias BACK_SP Reserved Reserved
KS7332
Table Micom Input(Continued) Register Bits MICOM Command Function BACK_WT [3:0], HIST_WT [3:0] 0000_1000 Default Value
EDGE_AMP [3:0] BACK_WT: Back bias weight
BACK_SP [3:0]
BACK-BIAS Point
BACK_WT
[183:176] Histogram equalization bypass weight
1023 HIST_WT
HIST_WT
LUT_GAIN [7:0]
0100_0000
LUT_GAIN [7:0] Gain that makes maximum value 1023 LUT_GAIN (LP_H LP_V) when Image area size 256, maximum value 1023
[175:168]
1023
KS7332
Table Micom Input(Continued) Register Bits [167:160] MICOM Command Function LTI_ON, LSI_ON, LUT_TAB [2:0], LUT_HPF_SFT [2:0] 1110_0010 Default Value
LTI_ON
LSI_ON
LUT_TAB [2:0]
LUT_HPF_SFT [2:0]
LTI_ON: Temporal interpolation '1', Spatial interpolation '1', LUT_TAB: adjustment differentiation compensation LUT_TAB Default MODE
[159:152]
LUT_HPF_SFT: differentiation compensation gain Noise reduction relieving sudden temporal noise generator LTIC [3:0], CH_SEL [3:0]
0000_1000
LTIC [3:0]
CH_SEL [3:0]
LTIC: Temporal interpolation coefficient LUT. Prevents from changing suddenly over time. closer follow current LUT, closer 255, follow previous LUT.
Without LTIC
With LTIC
KS7332
Table Micom Input(Continued) Register Bits MICOM Command Function Chroma selection CH_SEL 0000 0001 0010 [159:152] 0011 0100 0101 0110 0111 Default Processing point BOUND0 [7:0] [151:144] 1000_0000 MODE Default Value
BOUND0 [7:0] BOUND0: changing point value luminance level CHROMA gain adjustment. BOUND32 [3:0] 1000_0000
[143:136]
BOUND32 [7:0] BOUND32: changing point value luminance level 32's CHROMA gain adjustment BOUND64 [3:0] 1000_0000
[135:128]
BOUND64 [7:0] BOUND64: changing point value luminance level 64's CHROMA gain adjustment BOUND128 [3:0] 1000_0000
[127:120] BOUND128 [7:0] BOUND128: changing point value luminance level 128's CHROMA gain adjustment
KS7332
Table Micom Input(Continued) Register Bits MICOM Command Function BOUND256 [3:0] 1000_0000 Default Value
BOUND256 [7:0] BOUND256: changing point value luminance level 256's CHROMA gain adjustment
BOUND256
[119:112]
BOUND128 BOUND64 BOUND32 BOUND0
NOTE:
Luminance Value
BOUND0, BOUND32, BOUND64, BOUND128, BOUND256 adjusting color signal sensitivity, which strengthens color suppress areas.
HLOG_ON, SAT_ON, ALPF_WTSFT [2:0], SHPF_SFT[2:0]
1110_0001
KS7332
Table Micom Input(Continued) Register Bits MICOM Command Function Default Value
HLOG_ON
SAT_ON
ALPF_WTSFT [2:0]
SHPF_SFT[2:0]
HLOG_ON: Histogram accumulation output control point value output
1023
Histogram Value
Changing Point Value Output
Saturation block's on/off '1', ALPF_WTSFT: Gain slope ALPF
ALPF_WTSFT ALPF_WTSFT
ALPF_THSFT THRESHOLD
SHPF_SFT: gain ALPF_THP [7:0] [103:96] ALPF_THP: ALPF threshold AEW1HS [7:0] [95:88] Refer KS7331's block
1000_0000
ALPF_THP [7:0]
0010_0000
AEW1HS [7:0]
KS7332
Table Micom Input(Continued) Register Bits [87:80] MICOM Command Function AEW1HE [7:0] 0010_1010 Default Value
AEW1HE [7:0] Refer KS7331's block AEW1VS [7:0] [79:72] Refer KS7331's block AEW1VE[7:0] [71:64] Refer KS7331's block AEW2HS [7:0] [63:56] Refer KS7331's block AEW2HE [7:0] [55:48] Refer KS7331's block AEW2VS [7:0] [47:40] Refer KS7331's block AEW2VE [7:0] [39:32] Refer KS7331's block AEH_TH [7:0] [31:24] Refer KS7331's block
0001_0000
AEW1VS [7:0]
0101_0000
AEW1VE [7:0]
0001_0000
AEW2HS [7:0]
1111_1110
AEW2HE [7:0]
0001_0000
AEW2VS [7:0]
0100_0010
AEW2VE [7:0]
1111_1111
AEH_TH [7:0]
KS7332
Table Micom Input(Continued) Register Bits [23:16] MICOM Command Function AEL_TH [7:0] 0000_0000 Default Value
AEH_TH [7:0] Refer KS7331's block AEINSEL, AELPFSEL
[7:0]
10XX_XXXX
AEINSEL
AELPFSEL
[5:0]
Refer KS7331's block RESERVED [7:0] [255:248] Reserved RESERVED [7:0] [247:240] Reserved HLOG0 [7:0] [239:232]
1111_0000
RESERVED [7:0]
0000_1111
RESERVED [7:0]
HLOG0 [7:0] scaling accumulated value histogram luminance level HLOG1 [7:0]
[231:224]
HLOG1 [7:0] scaling accumulated value hIstogram luminance level HLOG2 [7:0]
[223:216]
HLOG2 [7:0] scaling accumulated value histogram luminance level HLOG3 [7:0]
[215:208]
HLOG3 [7:0] scaling accumulated value histogram luminance level
KS7332
Table Micom Input(Continued) Register Bits MICOM Command Function HLOG4 [7:0] [207:200] Default Value
HLOG4 [7:0] scaling accumulation value histogram luminance level HLOG5 [7:0]
[199:192]
HLOG5 [7:0] scaling accumulation value histogram luminance HLOG6 [7:0]
[191:184]
HLOG5 [7:0] scaling accumulation value histogram luminance HLOG7 [7:0]
[183:176]
HLOG7 [7:0] scaling accumulation value histogram luminance HLOG8 [7:0]
[175:168]
HLOG8 [7:0] scaling accumulation value histogram luminance HLOG9 [7:0]
[167:160]
HLOG9 [7:0] scaling accumulation value histogram luminance level RESERVED [31:0] 0000_0000
[159:128] Reserved
RESERVED [31:0]
AESUMH_W1 [7:0] [127:120]
AESUMH_W1 [7:0] Refer KS7331's block
KS7332
Table Micom Input(Continued) Register Bits MICOM Command Function AESUMM_W1 [7:0] [119:112] Default Value
AESUMH_W1 [7:0] Refer KS7331's block AESUML_W1 [7:0]
[111:104]
AESUML_W1 [7:0] Refer KS7331's block AESUMH_W2 [7:0]
[103:96]
AESUMH_W2 [7:0] Refer KS7331's block AESUMM_W2 [7:0]
0000_0000
[95:88]
AESUMM_W2 [7:0] Refer KS7331's block AESUML_W2 [7:0]
[87:80]
AESUML_W2 [7:0] Refer KS7331's block AECLIPH [7:0]
[79:72] Refer KS7331's block AECLIPL [7:0] [71:64]
AECLIPH [7:0]
AECLIPL [7:0] Refer KS7331's block RESERVED [63:0]
0000_0000
[63:0] Reserved
RESERVED [63:0]
KS7332
APPLICATION CIRCUIT
Mode Setting
HD12
MDSEL1
SCANEN
MDSEL0
HIGH
TSTO
TSTI
10Bit
SCSN RSTN SCLK
KS7332
System Micom
Figure Application Circuit
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