Abstract: In one example, an imaging apparatus includes an exposure controller that performs exposure control on the basis of information of a region of interest detected from a captured image by a region-of-interest detector. The exposure controller performs different exposure control for different cases, such as whether the region of interest is detected from the captured image. It obtains an exposure correction value on the basis of the region-of-interest exposure target value before a time of region-of-interest lost, and then performs exposure control with the exposure control value obtained by correcting the set region exposure target value with the exposure correction value, in a predetermined period in which the region of interest is not detected continuously from the time of the region-of-interest lost in which the region of interest is not detected from the captured image.

Abstract: In one example, an imaging apparatus includes an exposure controller that performs exposure control on the basis of information of a region of interest detected from a captured image by a region-of-interest detector. The exposure controller performs different exposure control for different cases, such as whether the region of interest is detected from the captured image. It obtains an exposure correction value on the basis of the region-of-interest exposure target value before a time of region-of-interest lost, and then performs exposure control with the exposure control value obtained by correcting the set region exposure target value with the exposure correction value, in a predetermined period in which the region of interest is not detected continuously from the time of the region-of-interest lost in which the region of interest is not detected from the captured image.

Abstract: The present invention addresses the problem of providing a novel compound capable of imparting a highly appealing floral and verdant scent, and a flavor composition and/or fragrance composition containing the same. This compound is a racemic or optically active compound represented by general formula (1). In formula (1), the solid and dotted double line indicates a double bond or a single bond, the definition of Y is the same as described in the specification, and * represents an asymmetric carbon atom.

Abstract: The present invention addresses the problem of providing a novel compound capable of imparting a highly appealing floral and verdant scent, and a flavor composition and/or fragrance composition containing the same. This compound is a racemic or optically active compound represented by general formula (1). In formula (1), the solid and dotted double line indicates a double bond or a single bond, the definition of Y is the same as described in the specification, and * represents an asymmetric carbon atom.

Abstract: Industrially advantageous processes for producing a 2-alkyl-2-cyclopentenone in high yields starting from a 2-(1-hydroxyalkyl)cyclopentanone or a 2-alkylidenecyclopentanone, which are obtainable from a cyclopentanone and a carbonyl compound. A 2-(1-hydroxyalkyl)cyclopentanone represented by the following general formula (1): (wherein R1, R2, R3, R4, R5, R6 and R7 each independently represents hydrogen atom, an alkyl group having 1 to 10 carbon atoms which may have one or more substituents or an aromatic group which may have one or more substituents, and each of (1) R6 or R7 with R3 and (2) R6 or R7 with R4 or R5 may be together combined to form a ring which may have a double bond) is subjected to dehydrative isomerization in the presence of a bromine compound and/or an iodine compound.

Abstract: Industrially advantageous processes for producing a 2-alkyl-2-cyclopentenone in high yields starting from a 2-(1-hydroxyalkyl)cyclopentanone or a 2-alkylidenecyclopentanone, which are obtainable from a cyclopentanone and a carbonyl compound.