[Problem] To enable the generation of a photoacoustic image from a photoacoustic signal in photoacoustic imaging, said photoacoustic image indicating the absorption distribution of a light absorber. [Solution] A photoacoustic image generation device is provided with: a probe (11) having a light emitting portion (13) and an ultrasonic transducer (60) a positional information acquisition means (15) that acquires spatial information that specifies the position and orientation of the probe (11) in real space and a photoacoustic image generation means (12) that generates tomographic data and/or volume data for the photoacoustic signal by using the photoacoustic signal of a photoacoustic wave detected by the probe (11) and the spatial information obtained by the positional information acquisition means (15). The photoacoustic image generation means (12) has a differential optical waveform deconvolution means (25) that deconvolves, from the photoacoustic signal, a differential optical waveform which is a differential waveform of the temporal waveform of the light intensity of the measured light. When the tomographic data and/or volume data is to be generated, the photoacoustic image generation means (12) uses the deconvolved photoacoustic signal.[Problème] Permettre la génération dune image photoacoustique à partir dun signal photoacoustique dans limagerie photoacoustique, ladite image photoacoustique indiquant la distribution dabsorption dun absorbeur de lumière. [Solution] Un dispositif de génération dimage photoacoustique comprend : une sonde (11) possédant une partie à émission de lumière (13) et un transducteur à ultrasons (60) un moyen dacquisition dinformations de position (15) qui acquiert des informations spatiales qui spécifient la position et lorientation de la sonde (11) dans lespace réel et un moyen de génération dimage photoacoustique (12) qui génère des données tomographiques et/ou des données de volume pour le signal photoacoustique en utilisant le signal
