class ProcessedSignalPlotter(RawSignalPlotter):
def __init__(self, person, eegData, signals, filePath, save=True, plot=True, logScale=False):
RawSignalPlotter.__init__(self, person, eegData, signals, filePath, save, plot, logScale, name="processed")
self.pre = SignalPreProcessor()
self.chain = SignalProcessor()
def _getData(self, signal):
raw = self.eegData.getColumn(signal)
qual = self.eegData.getQuality(signal)
proc = self.pre.process(raw)
proc, _ = self.chain.process(proc, qual)
return proc
def __init__(self, person, filePath, signals=None, save=True, plot=True, logScale=False):
self.person = person
self.filePath = filePath
self._initStatsDict()
self._readData()
self._initSignals(signals)
self.su = SignalUtil()
self.qu = QualityUtil()
self._initFields()
self.save = save
self._initPlotter(person, plot, logScale)
self.ssPrint = SignalStatisticPrinter(person)
self.preProcessor = SignalPreProcessor()
def __init__(self, inputQueue, outputQueue):
config = ConfigProvider()
self.eegFields = config.getEmotivConfig()["eegFields"]
self.gyroFields = config.getEmotivConfig()["gyroFields"]
self.samplingRate = config.getEmotivConfig()["samplingRate"]
self.processingConfig = config.getProcessingConfig()
self.preProcessor = SignalPreProcessor()
self.signalProcessor = SignalProcessor()
self.fftProcessor = FFTProcessor()
self.inputQueue = inputQueue
self.outputQueue = outputQueue
self.runProcess = True
self.totalInvalid = 0
self.totalCount = 0
class DistributionSignalPlotter(AbstractSignalPlotter):
def __init__(self, person, eegData, signals, filePath, save=True, plot=True, logScale=False):
AbstractSignalPlotter.__init__(self, "distribution", person, eegData, signals, filePath, save, plot, logScale)
self.preProcessor = SignalPreProcessor()
def doPlot(self):
if self._shouldNotPlot():
return
fig, axes = self._initPlot()
fig.canvas.set_window_title(self.title)
for x, signal in enumerate(self.signals):
self._plotSignal(signal, axes, x)
self._configurePlot()
self.savePlot()
self.showPlot()
print "plotting done"
def _initPlot(self):
signalCount = self._calcSignalCount()
fig, axes = plt.subplots(2, signalCount, figsize=self.figsize, dpi=80, sharex=False, sharey=True)
return fig, axes
def _plotSignal(self, signal, axes, x):
raw = self.eegData.getColumn(signal)
proc = self.preProcessor.process(raw)
quality = self.eegData.getQuality(signal)
rawAx = axes[0, x]
rawAx.xaxis.set_label_position("top")
if self.logScale:
rawAx.set_yscale("log")
# rug=True causes serious performance issues
sns.distplot(proc, color="b", axlabel=signal, ax=rawAx, bins=30, kde=False)
qualAx = axes[1, x]
sns.distplot(quality, color="g", ax=qualAx, bins=15, kde=False)
class DataProcessor(object):
def __init__(self, inputQueue, outputQueue):
config = ConfigProvider()
self.eegFields = config.getEmotivConfig()["eegFields"]
self.gyroFields = config.getEmotivConfig()["gyroFields"]
self.samplingRate = config.getEmotivConfig()["samplingRate"]
self.processingConfig = config.getProcessingConfig()
self.preProcessor = SignalPreProcessor()
self.signalProcessor = SignalProcessor()
self.fftProcessor = FFTProcessor()
self.inputQueue = inputQueue
self.outputQueue = outputQueue
self.runProcess = True
self.totalInvalid = 0
self.totalCount = 0
def close(self):
self.runProcess = False
def processData(self):
while self.runProcess:
try:
data = self.inputQueue.get(timeout=1)
procData, procInvalid = self.process(data)
if not procInvalid:
self.outputQueue.put(procData)
except Empty:
pass
def process(self, data):
#TODO make me fast and nice
eegRaw, gyroRaw = self.splitData(data)
eegProc, eegInvalid = self.processEEGData(eegRaw)
gyroProc, gyroIvalid = self.processGyroData(gyroRaw)
eegProc.update(gyroProc)
return eegProc, (eegInvalid or gyroIvalid)
def splitData(self, data):
'''split eeg and gyro data
:param data: all values as dict
:return:
eegData: eeg values as dict
gyroData: gyro values as dict
'''
#TODO handle data except eeg and gyro?
eegData = {x: data[x] for x in data if x in self.eegFields}
gyroData = {x: data[x] for x in data if x in self.gyroFields}
return eegData, gyroData
def processEEGData(self, eegData):
invalidCount = 0
for _, signal in eegData.iteritems():
raw = array(signal["value"])
quality = array(signal["quality"])
proc = self.preProcessor.process(raw)
proc, _ = self.signalProcessor.process(proc, quality)
chan, fInvalid = self.fftProcessor.process(proc)
signal["theta"] = chan["theta"]
invalidCount += sum([fInvalid])
if invalidCount > 0:
self.totalInvalid += 1
self.totalCount += 1
return eegData, (invalidCount > 0)
def processGyroData(self, gyroData):
return gyroData, False
def __init__(self, person, eegData, signals, filePath, save=True, plot=True, logScale=False):
AbstractSignalPlotter.__init__(self, "distribution", person, eegData, signals, filePath, save, plot, logScale)
self.preProcessor = SignalPreProcessor()
class SignalStatisticUtil(object):
'''
class to show some statistical values for a channel
'''
def __init__(self, person, filePath, signals=None, save=True, plot=True, logScale=False):
self.person = person
self.filePath = filePath
self._initStatsDict()
self._readData()
self._initSignals(signals)
self.su = SignalUtil()
self.qu = QualityUtil()
self._initFields()
self.save = save
self._initPlotter(person, plot, logScale)
self.ssPrint = SignalStatisticPrinter(person)
self.preProcessor = SignalPreProcessor()
def _initStatsDict(self):
self.stats = OrderedDict()
self.stats[GENERAL_KEY] = OrderedDict()
self.stats[SIGNALS_KEY] = OrderedDict()
def _readData(self):
self.reader = EEGTableFileUtil()
self.eegData = self.reader.readFile(self.filePath)
def _initSignals(self, signals):
if not signals:
signals = ConfigProvider().getEmotivConfig().get("eegFields")
self.signals = signals
def _initFields(self):
self.statFields = STAT_FIELDS
self.statFields["max"][METHOD] = self.su.maximum
self.statFields["min"][METHOD] = self.su.minimum
self.statFields["mean"][METHOD] = self.su.mean
self.statFields["std"][METHOD] = self.su.std
self.statFields["var"][METHOD] = self.su.var
self.statFields["zeros"][METHOD] = self.qu.countZeros
self.statFields["seq"][METHOD] = self.qu.countSequences
self.statFields["out"][METHOD] = self.qu.countOutliners
def _initPlotter(self, person, plot, logScale):
self.plotter = []
for clazz in PLOTTER:
plotter = clazz(person, self.eegData, self.signals, self.filePath, self.save, plot, logScale)
thread = multiprocessing.Process(target=plotter.doPlot)
self.plotter.append(thread)
def main(self):
self.doPlot()
self.collect_stats()
self.printStats()
def doPlot(self):
for thread in self.plotter:
thread.start()
def collect_stats(self):
self.collectGeneralStats()
for signal in self.signals:
self.stats[SIGNALS_KEY][signal] = {}
self.collectRawStats(signal)
self.collectQualityStats(signal)
def collectGeneralStats(self):
self._addGeneralStatValue("file path", self.filePath)
self._addGeneralStatValue("sampleRate", ("%f.2" % self.eegData.getSamplingRate()))
self._addGeneralStatValue("dataLength", ("%d" % self.eegData.len))
self._addGeneralStatValue("bound", ("%d - %d" % (self.qu.lowerBound, self.qu.upperBound)))
self._addGeneralTimeStat("start time", "getStartTime", TIME_FORMAT_STRING)
self._addGeneralTimeStat("end time", "getEndTime", TIME_FORMAT_STRING)
self._addGeneralTimeStat("duration", "getDuration", DURATION_FORMAT_STRING)
def _addGeneralTimeStat(self, name, method, formatString):
time = getattr(self.eegData, method)()
value = self._buildFormattedTime(time, formatString)
self._addGeneralStatValue(name, value)
def _buildFormattedTime(self, time, formatString):
value = datetime.fromtimestamp(time).strftime(formatString)
return value
def _addGeneralStatValue(self, name, value):
self.stats[GENERAL_KEY][name] = value
def collectRawStats(self, signal):
data = self.eegData.getColumn(signal)
proc = self.preProcessor.process(data)
self._collectSignalStat(signal, RAW_KEY, proc)
def collectQualityStats(self, signal):
data = self.eegData.getQuality(signal)
self._collectSignalStat(signal, QUALITY_KEY, data)
def _collectSignalStat(self, signal, category, data):
self.stats[SIGNALS_KEY][signal][category] = OrderedDict()
for field, attributes in self.statFields.iteritems():
self._addSignalStat(signal, category, field, attributes["method"], data, 0)
def _addSignalStat(self, signal, category, name, method, raw, decPlace=2):
value = ("%." + str(decPlace) + "f") % method(raw)
self._addSignalStatValue(signal, category, name, value)
def _addSignalStatValue(self, signal, category, name, value):
self.stats[SIGNALS_KEY][signal][category][name] = value
def setStats(self, stats):
self.stats = stats
def printStats(self):
content = self.ssPrint.getSignalStatsString(self.stats)
print content
if self.save:
filePath = getNewFileName(self.filePath, "txt", "_stats")
self.ssPrint.saveStats(filePath, content)
def __init__(self, person, eegData, signals, filePath, save=True, plot=True, logScale=False):
RawSignalPlotter.__init__(self, person, eegData, signals, filePath, save, plot, logScale, name="processed")
self.pre = SignalPreProcessor()
self.chain = SignalProcessor()